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TLV6742IDR

TLV6742IDR

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    SOIC8_150MIL

  • 描述:

    IC CMOS 1 CIRCUIT 8SOIC

  • 数据手册
  • 价格&库存
TLV6742IDR 数据手册
TLV6741, TLV6742 SBOS817I – JUNE 2017 – REVISED AUGUST 2021 TLV6741, TLV6742, TLV6744 10-MHz, Low Broadband Noise, RRO, Operational Amplifier 1 Features 3 Description • • • • • • • • The TLV674x family includes single (TLV6741), dual (TLV6742), and quad-channel (TLV6744) generalpurpose CMOS operational amplifiers (op amp) that provide a low noise figure of 3.5 nV/√Hz and a wide bandwidth of 10 MHz. The low noise and wide bandwidth make the TLV674x family of devices attractive for a variety of precision applications that require a good balance between cost and performance. Additionally, the input bias current of the TLV674x family supports applications with high source impedance. Low broadband noise: 3.5 nV/√Hz Gain bandwidth: 10 MHz Low input bias current: ±3 pA Low offset voltage: 0.15 mV Low offset voltage drift: ±0.2 µV/°C Rail-to-rail output Unity-gain stable Low IQ: – TLV6741: 890 µA/ch – TLV6742/4: 990 µA/ch Wide supply range: – TLV6741: 2.25 V to 5.5 V – TLV6742/4: 1.7 V to 5.5 V Robust EMIRR performance: 71 dB at 2.4 GHz • • The robust design of the TLV674x family provides ease-of-use to the circuit designer due to its unity-gain stability, integrated RFI/EMI rejection filter, no phase reversal in overdrive conditions and high electrostatic discharge (ESD) protection (2-kV HBM). Additionally, the resistive open-loop output impedance makes them easy to stabilize with much higher capacitive loads. 2 Applications Voltage noise spectral density (nV/rtHz) • • • • • • • • • • Solid state drive Wearables (non-medical) Professional audio amplifier (rack mount) Transimpedance Amplifier Circuit Test and measurement Motor drives Pressure transmitter Lab and field instrumentation Bridge amplifier circuit Gaming applications This op amp family is optimized for low-voltage operation as low as 2.25 V (±1.125 V) for the TLV6741 and 1.7 V (±0.85 V) for the TLV6742 and TLV6744. All of the devices operate up to 5.5 V (±2.75 V), and are specified over the temperature range of –40°C to 125°C. The single-channel TLV6741 is available in a smallsize SC70-5 package. The dual-channel TLV6742 is available in multiple package options including a tiny 1.5 mm × 2.0 mm X2QFN package. 100 70 50 Device Information 30 PART NUMBER(1) 20 TLV6741 PACKAGE BODY SIZE (NOM) SC70 (5) 1.25 mm × 2.00 mm SOIC (8) 3.91 mm × 4.90 mm TSSOP (8) 3.00 mm × 4.40 mm VSSOP (8) 3.00 mm × 3.00 mm 3 SOT-23 (8) 1.60 mm × 2.90 mm 2 WSON (8) 2.00 mm × 2.00 mm X2QFN (10) 1.50 mm × 2.00 mm 10 7 5 TLV6742 TLV6742S 1 10 100 1k Frequency (Hz) 10k 100k (1) D012 For all available packages, see the orderable addendum at the end of the data sheet. Noise Spectral Density vs Frequency An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 Table of Contents 1 Features............................................................................1 2 Applications..................................................................... 1 3 Description.......................................................................1 4 Revision History.............................................................. 2 5 Device Comparison Table...............................................4 6 Pin Configuration and Functions...................................5 7 Specifications.................................................................. 7 7.1 Absolute Maximum Ratings ....................................... 7 7.2 ESD Ratings .............................................................. 7 7.3 Recommended Operating Conditions ........................7 7.4 Thermal Information for Single Channel .................... 7 7.5 Thermal Information for Dual Channel .......................8 7.6 Electrical Characteristics ............................................9 7.7 TLV6741: Typical Characteristics..............................12 7.8 TLV6742: Typical Characteristics..............................18 8 Detailed Description......................................................26 8.1 Overview................................................................... 26 8.2 Functional Block Diagram......................................... 26 8.3 Feature Description...................................................26 8.4 Device Functional Modes..........................................31 9 Application and Implementation.................................. 32 9.1 Application Information............................................. 32 9.2 Single-Supply Electret Microphone Preamplifier With Speech Filter....................................................... 32 10 Power Supply Recommendations..............................35 11 Layout........................................................................... 36 11.1 Layout Guidelines................................................... 36 11.2 Layout Example...................................................... 37 12 Device and Documentation Support..........................39 12.1 Documentation Support.......................................... 39 12.2 Receiving Notification of Documentation Updates..39 12.3 Support Resources................................................. 39 12.4 Trademarks............................................................. 39 12.5 Electrostatic Discharge Caution..............................39 12.6 Glossary..................................................................39 13 Mechanical, Packaging, and Orderable Information.................................................................... 40 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision H (February 2021) to Revision I (August 2021) Page • Removed preview tag from TLV6742 VSSOP in Device Information section .................................................... 1 • Removed preview tag to VSSOP (DGK) in Device Comparison Table section.................................................. 4 Changes from Revision G (April 2020) to Revision H (February 2021) Page • Updated the numbering format for tables, figures, and cross-references throughout the document..................1 • Removed preview tag from TLV6742S X2QFN in Device Information section .................................................. 1 • Removed preview note from X2QFN for TLV6742S in Pin Configuration and Functions section...................... 5 • Removed Table of TLV6741 Graphs and Table of TLV6742 Graphs tables from the Specifications section....12 • Removed Related Links section from the Device and Documentation Support section...................................39 Changes from Revision F (January 2020) to Revision G (April 2020) Page • Added end equipment links in Application section..............................................................................................1 • Deleted preview tags for TSSOP, SOT-23, WSON, and X2QFN packages in Device Information section ....... 1 • Deleted VSSOP (8) package in Device Information section ..............................................................................1 • Added preview tag to TLV6742S X2QFN in Device Information section ........................................................... 1 • Deleted VSSOP (DGK) in Device Comparison Table section.............................................................................4 • Added preview tag to X2QFN (RUG) in Device Comparison Table section....................................................... 4 • Deleted DGK package in pinout drawing for TLV6742 package in Pin Configuration and Functions section.... 5 • Deleted DGK VSSOP in Thermal Information for Dual Channel section............................................................7 • Added shutdown electrical characteristic information........................................................................................9 • Deleted example layout for VSSOP-8 (DGK) package in Layout Example section..........................................37 Changes from Revision E (December 2019) to Revision F (January 2020) Page • Deleted TLV6744 product folder link from the data sheet page header............................................................. 1 2 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 Changes from Revision D (January 2019) to Revision E (December 2019) Page • Added IQ definition for TLV6742 and TLV744 in Features section......................................................................1 • Added EMIRR, Supply Range, IQ, and Offset Voltage Drift to Features section................................................ 1 • Changed Noise Spectral Density vs Frequency plot on front page to the TLV6742 and TLV6744 noise plot.... 1 • Changed wording of Description section to incorporate release of TLV6742 and TLV6744 devices .................1 • Changed TLV6742 packages in Device Information ..........................................................................................1 • Added Device Comparison Table section........................................................................................................... 4 • Added note regarding single supply operation to Pin Functions: TLV6741 table............................................... 5 • Added pin out drawings for TLV6742 packages in Pin Configuration and Functions section.............................5 • Added pin functions for TLV6742 packages....................................................................................................... 5 • Added X2QFN Package Drawing and Pin Functions for TLV6742S in Pin Configuration and Functions section ............................................................................................................................................................................5 • Added TLV6742 typical characteristic graphs in the Specifications section..................................................... 12 • Changed wording throughout Detailed Description section to incorporate addition of TLV6742 and TLV6744 devices..............................................................................................................................................................26 • Added EMI Rejection section with description information to Detailed Description section............................. 27 • Added Electrical Overstress section and diagram to Detailed Description section.......................................... 28 • Added Typical Specification and Distributions section to Detailed Description section.................................... 29 • Added Shutdown Function section with description for TLV6742S to Detailed Description section................. 30 • Added Packages With an Exposed Thermal Pad section to Detailed Description section...............................30 • Changed wording in Application and Implementation section to include the addition of TLV6742 and TLV6744 ..........................................................................................................................................................................32 • Added TLV6742 and TLV6744 information to Power Supply Recommendations section................................ 35 • Added dual channel layout example in the Layout section...............................................................................37 Changes from Revision C (October 2017) to Revision D (January 2019) Page • Changed Operating temperature from 125 to 150 in Absolute Maximum Ratings ........................................... 7 • Added Junction temperature spec to Absolute Maximum Ratings .................................................................... 7 Changes from Revision B (October 2017) to Revision C (October 2017) Page • Added test conditions to input offset voltage parameter in Electrical Characteristics table................................ 9 • Changed typical input current noise density value from 2 fA√HZ to 23 fA√Hz................................................... 9 • Changed total supply voltage total from 5V to 5.5V in Electrical Characteristics condition statement............... 9 • Deleted "Vs = 2.25 V to 5.5 V" test conditions for common-mode rejection ratio parameter in Electrical Characteristics ................................................................................................................................................... 9 • Deleted "CL = 0" test condition from Figure 7-25 and Figure 7-26, Figure 7-27 and Figure 7-28 ....................12 • Changed voltage step from 5 V to 2 V in Figure 7-32 ......................................................................................12 Changes from Revision A (September 2017) to Revision B (October 2017) Page • Changed Human-body model (HBM) value from: ±1000 to ±3000 and Charged-device mode (CDM) value from ±250 to ±1000.............................................................................................................................................7 Changes from Revision * (June 2017) to Revision A (September 2017) Page • Changed device document status from: Advance Information to: Production Data........................................... 1 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 3 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 5 Device Comparison Table DEVICE NO. OF CHANNELS TLV6741 1 TLV6742 TLV6742S 4 2 PACKAGE LEADS SOIC D SC-70 DCK VSSOP DGK WSON DSG TSSOP PW SOT-23 DDF X2QFN RUG — 5 — — — — — 8 — 8 8 8 8 — — — — — — — 10 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 6 Pin Configuration and Functions IN+ 1 V± 2 IN± 3 5 V+ 4 OUT Not to scale Figure 6-1. TLV6741 DCK Package 5-Pin SC70 Top View Table 6-1. Pin Functions: TLV6741 PIN NAME NO. IN+ 1 IN– OUT I/O DESCRIPTION I Noninverting input 3 I Inverting input 4 O Output V+ 5 — Positive (highest) supply V– 2 — Negative (lowest) supply or ground (for single-supply operation) OUT1 1 8 V+ IN1± 2 7 OUT2 IN1+ 3 6 IN2± V± 4 5 IN2+ OUT1 1 IN1± 2 IN1+ 3 V± 4 Thermal Pad 8 V+ 7 OUT2 6 IN2± 5 IN2+ Not to scale Figure 6-2. TLV6742 D, DGK, PW, and DDF Package 8-Pin SOIC, VSSOP, TSSOP, and SOT-23 Top View Not to scale Connect thermal pad to V–. See Section 8.3.8 for more information. Figure 6-3. TLV6742 DSG Package 8-Pin WSON With Exposed Thermal Pad Top View Table 6-2. Pin Functions: TLV6742 PIN NAME NO. I/O DESCRIPTION IN1– 2 I Inverting input, channel 1 IN1+ 3 I Noninverting input, channel 1 IN2– 6 I Inverting input, channel 2 IN2+ 5 I Noninverting input, channel 2 OUT1 1 O Output, channel 1 OUT2 7 O Output, channel 2 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 5 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 Table 6-2. Pin Functions: TLV6742 (continued) PIN NAME I/O NO. DESCRIPTION 4 — Negative (lowest) supply or ground (for single-supply operation) V+ 8 — Positive (highest) supply IN1+ V– 1 9 IN1± SHDN1 2 8 OUT1 SHDN2 3 7 V+ IN2+ 4 6 OUT2 5 10 V± IN2± Not to scale Figure 6-4. TLV6742S RUG Package 10-Pin X2QFN Top View Table 6-3. Pin Functions: TLV6742S PIN NAME 6 NO. I/O DESCRIPTION IN1– 9 I Inverting input, channel 1 IN1+ 10 I Noninverting input, channel 1 IN2– 5 I Inverting input, channel 2 IN2+ 4 I Noninverting input, channel 2 OUT1 8 O Output, channel 1 OUT2 6 O Output, channel 2 SHDN1 2 I Shutdown: low = amp disabled, high = amp enabled. Channel 1. See Section 8.3.7 for more information. SHDN2 3 I Shutdown: low = amp disabled, high = amp enabled. Channel 2. See Section 8.3.7 for more information. V– 1 I or — V+ 7 I Negative (lowest) supply or ground (for single-supply operation) Positive (highest) supply Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 7 Specifications 7.1 Absolute Maximum Ratings over operating ambient temperature range (unless otherwise noted) (1) MIN MAX 0 6 V (V–) – 0.5 (V+) + 0.5 V Supply voltage, VS = (V+) – (V–) Common-mode voltage (3) Differential voltage (3) (4) Signal input pins Current (3) VS + 0.2 –10 Output short-circuit (2) –55 Junction temperature, TJ Storage temperature, Tstg (2) (3) (4) V 10 mA 150 °C 150 °C 150 °C Continuous Operating ambient temperature, TA (1) UNIT –65 Operating the device beyond the ratings listed under Absolute Maximum Ratings will cause permanent damage to the device. These are stress ratings only, based on process and design limitations, and this device has not been designed to function outside the conditions indicated under Recommended Operating Conditions. Exposure to any condition outside Recommended Operating Conditions for extended periods, including absolute-maximum-rated conditions, may affect device reliability and performance. Short-circuit to ground, one amplifier per package. Input pins are diode-clamped to the power-supply rails. Input signals that may swing more than 0.5 V beyond the supply rails must be current limited to 10 mA or less. Differential input voltages greater than 0.25 V applied continuously can result in a shift to the input offset voltage above the maximum specification of this parameter. The magnitude of this effect increases as the ambient operating temperature rises. 7.2 ESD Ratings VALUE V(ESD) Electrostatic discharge TLV6741: Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001 (1) ±3000 TLV6742: Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001 (1) ±2000 All Devices: Charged-device model (CDM), per JEDEC specification JESD22-C101 (2) (1) (2) UNIT V ±1500 JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. 7.3 Recommended Operating Conditions over operating ambient temperature range (unless otherwise noted) MIN MAX 1.7(1) 5.5 V Supply voltage, (V+) – (V–), for TLV6741 only 2.25 5.5 V VI Input voltage range (V–) (V+) – 1.2 V TA Specified temperature –40 125 °C VS Supply voltage, (V+) – (V–) , for TLV6742 and TLV6744 VS (1) UNIT Operation between 1.7V and 1.8V is only recommened for TA = 0 - 85 ℃ 7.4 Thermal Information for Single Channel TLV6741 THERMAL METRIC (1) DCK (SC70) UNIT 5 PINS RθJA Junction-to-ambient thermal resistance 240.9 ℃/W RθJC(top) Junction-to-case (top) thermal resistance 151.7 ℃/W RθJB Junction-to-board thermal resistance 64 ℃/W ψJT Junction-to-top characterization parameter 34.8 ℃/W ψJB Junction-to-board characterization parameter 63.3 ℃/W Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 7 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 7.4 Thermal Information for Single Channel (continued) TLV6741 DCK (SC70) THERMAL METRIC (1) UNIT 5 PINS RθJC(bot) (1) Junction-to-case (bottom) thermal resistance ℃/W n/a For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report SPRA953C. 7.5 Thermal Information for Dual Channel TLV6742, TLV6742S THERMAL METRIC (1) DDF (SOT-23-8) DSG (WSON) PW (TSSOP) DGK (VSSOP) RUG (X2QFN) UNIT 8 PINS 8 PINS 8 PINS 8 PINS 8 PINS 10 PINS RθJA Junction-to-ambient thermal resistance 131.1 153.8 78.2 185.6 177.0 140.3 °C/W RθJC(top) Junction-to-case (top) thermal resistance 73.2 80.2 97.5 74.5 68.6 52.6 °C/W RθJB Junction-to-board thermal resistance 74.5 73.1 44.6 116.3 98.7 69.7 °C/W ψJT Junction-to-top characterization parameter 24.4 6.6 4.7 12.6 12.4 1.0 °C/W ψJB Junction-to-board characterization parameter 73.3 72.7 44.6 114.6 97.1 67.5 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance n/a n/a 19.8 n/a n/a n/a °C/W (1) 8 D (SOIC) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953C. Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 7.6 Electrical Characteristics TLV6742/4 Specifications: VS = (V+) – (V–) = 1.8 V to 5.5 V (±0.9 V to ±2.75 V) at TA = 25°C, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VO UT = VS / 2, unless otherwise noted. TLV6741 Specifications: VS = (V+) – (V–) = 5.5 V at TA = 25°C, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VO UT = VS / 2, unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX ±0.15 ±1.0 UNIT OFFSET VOLTAGE VOS Input offset voltage VS = 5.0 V dVOS/dT Input offset voltage drift PSRR Input offset voltage versus power supply VCM = V– TLV6741(2) VCM = V– TLV6742/4(3) Channel separation f = 20 kHz TA = –40°C to 125°C TA = –40°C to 125°C TLV6742/4(3) ±1.2 TLV6741(2) ±0.35 TLV6742/4(3) mV µV/℃ ±0.2 ±0.32 ±6.3 ±0.7 ±5.8 130 μV/V dB INPUT BIAS CURRENT IB Input bias current IOS Input offset current TLV6741(2) ±10 TLV6742/4(3) pA ±3 TLV6741(2) ±10 TLV6742/4(3) ±0.5 pA NOISE EN Input voltage noise 1.2 f = 0.1 to 10 Hz f = 10 Hz eN Input voltage noise density f = 1 kHz f = 10 kHz iN Input current noise μVPP 0.227 TLV6742/4(3) 30 TLV6741(2) 5.0 TLV6742/4(3) 4.6 TLV6741(2) 3.7 TLV6742/4(3) 3.5 f = 1 kHz µVRMS nV/√Hz 23 fA/√Hz INPUT VOLTAGE RANGE VCM Common-mode voltage range CMRR Common-mode rejection ratio (V–) (V–) < VCM < (V+) – 1.2 V VS = 1.8 V, (V–) < VCM < (V+) – 1.2 V VS = 5.5, (V–) < VCM < (V+) – 1.2 V TLV6741(2) TLV6742/4(3) (V+) -1.2 95 120 87 100 94 110 V dB INPUT CAPACITANCE ZID Differential 10 || 6 MΩ || pF ZICM Common-mode 10 || 6 GΩ || pF OPEN-LOOP GAIN (V–) + 40 mV < VO < (V+) – 40 mV, RL = 10 kΩ to VS/2 (V–) + 150 mV < VO < (V+) – 150 mV, RL = 2 kΩ to VS/2 AOL Open-loop voltage gain 125 TLV6741(2) VS= 1.8 V, (V–) + 150 mV < VO < (V+) – 150 mV, RL = 2 kΩ to VS/2 VS= 5.5 V, (V–) + 150 mV < VO < (V+) – 150 mV, RL = 2 kΩ to VS/2 VS = 1.8 V, (V–) + 40m V < VO < (V+) – 40 mV, RL = 10 kΩ to VS/2 110 130 107 120 dB 140 TLV6742/4(3) VS = 5.5 V, (V–) + 40m V < VO < (V+) – 40 mV, RL = 10 kΩ to VS/2 110 120 140 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 9 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 7.6 Electrical Characteristics (continued) TLV6742/4 Specifications: VS = (V+) – (V–) = 1.8 V to 5.5 V (±0.9 V to ±2.75 V) at TA = 25°C, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VO UT = VS / 2, unless otherwise noted. TLV6741 Specifications: VS = (V+) – (V–) = 5.5 V at TA = 25°C, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VO UT = VS / 2, unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT FREQUENCY RESPONSE GBW Gain-bandwidth product SR Slew rate tS Settling time VS = 5.5 V, G = +1, CL = 20 pF 10 MHz 4.5 V/μs To 0.1%, VS = 5.5 V, VSTEP = 2 V, G = +1, CL = 20pF 0.65 To 0.01%, VS = 5.5 V, VSTEP = 2 V, G = +1, CL = 20pF 1.2 μs Phase margin G = +1, RL = 10kΩ, CL = 20 pF 55 ° Overload recovery time VIN × gain > VS 0.2 μs THD+N Total harmonic distortion + noise VS = 5.5 V, VCM = 2.5 V, VO = 1 VRMS, G = +1, f = 1 kHz, RL = 10 kΩ TLV6741(2) 0.00035% TLV6742/4(3) 0.00015% EMIRR Electro-magnetic interference rejection ratio f = 1 GHz TLV6742/4(3) 51 dB OUTPUT Positive/Negative rail headroom VS = 5.5 V, RL = 10k TLV6741(2) 8 VS = 5.5 V, RL = no load Voltage output swing from rail Positive rail headroom VS = 5.5 V, RL = no load Negative rail headroom 7 VS = 5.5 V, RL = 2 kΩ VS = 5.5 V, RL = 10 kΩ 35 TLV6742/4(3) Capacitive load drive ZO Open-loop output impedance 14 mV 7 35 5 TLV6742/4(3) Short-circuit current CLOAD 5 VS = 5.5 V, RL = 2 kΩ VS = 5.5 V, RL = 10 kΩ ISC 10 14 ±68 mA See Figure 7-58 f = 10 MHz, IO = 0 A TLV6741(2) 160 f = 2 MHz, IO = 0 A TLV6742/4(3) 165 Ω POWER SUPPLY IQ Quiescent current per amplifier VS = 5.5 V, IO = 0 A TA = –40°C to 125°C TA = –40°C to 125°C Turn-On Time 10 At TA = 25°C, VS = 5.5 V, VS ramp rate > 0.3 V/µs TLV6741(2) TLV6742/4(3) TLV6742/4(3) Submit Document Feedback 890 1100 990 1200 µA 1250 10 μs Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 7.6 Electrical Characteristics (continued) TLV6742/4 Specifications: VS = (V+) – (V–) = 1.8 V to 5.5 V (±0.9 V to ±2.75 V) at TA = 25°C, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VO UT = VS / 2, unless otherwise noted. TLV6741 Specifications: VS = (V+) – (V–) = 5.5 V at TA = 25°C, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VO UT = VS / 2, unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX 1 3.5 UNIT SHUTDOWN IQSD Quiescent current per amplifier All amplifiers disabled, SHDN = V– ZSHDN Output impedance during shutdown Amplifier disabled VIH Logic high threshold voltage (amplifier enabled) VIL Logic low threshold voltage (amplifier disabled) tON tOFF (2) (3) GΩ || pF (V–) + 1.1 V V (V–) + 0.2 V Amplifier enable time (full shutdown) (1) G = +1, VCM = V-, VO = 0.1 × VS/2 15 Amplifier enable time (partial shutdown)(1) G = +1, VCM = V-, VO = 0.1 × VS/2 8 Amplifier disable time (1) VCM = V-, VO = VS/2 SHDN pin input bias current (per pin) (1) 10 || 6 µA µs 3 (V+) ≥ SHDN ≥ (V–) + 0.9 V 0.4 (V–) ≤ SHDN ≤ (V–) + 0.7 V 0.25 µA Disable time (tOFF) and enable time (tON) are defined as the time interval between the 50% point of the signal applied to the SHDN pin and the point at which the output voltage reaches the 10% (disable) or 90% (enable) level. This electrical characteristic only applies to the single-channel, TLV6741 This electrical characteristic only applies to the dual-channel TLV6742 and quad-channel TLV6744 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 11 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 7.7 TLV6741: Typical Characteristics 80 35% 70 30% 60 Population (%) 40% 25% 20% 15% 50 40 30 10% 20 5% 10 0 0 -1000 -900 -800 -700 -600 -500 -400 -300 -200 -100 0 100 200 300 400 500 600 700 800 900 1000 Population (%) at TA = 25°C, VS = 5.5 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2, unless otherwise noted. 0.4 6 100 4 -100 -200 -300 -400 -60 1.2 1.6 2 2.4 2.8 D002 Figure 7-2. Offset Voltage Drift Distribution 200 0 0.8 Offset Voltage Drift (PV/qC) Offset Voltage (mV) Offset Voltage (PV) D001 Offset Voltage (µV) Figure 7-1. Offset Voltage Production Distribution 2 0 -2 -4 -6 -40 -20 0 20 40 60 80 Temperature (qC) 100 120 140 -4 -3 D003 Figure 7-3. Offset Voltage vs Temperature -2 -1 0 1 2 Input Common Mode Voltage (V) 3 4 D004 Figure 7-4. Offset Voltage vs Common-Mode Voltage 0.5 300 0.4 200 100 0.2 0.1 VOS (PV) Offset Voltage (mV) 0.3 0 -0.1 -100 -200 -0.2 -300 -0.3 -400 -0.4 -0.5 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 Input Common Mode Voltage (V) 1.5 Figure 7-5. Offset Voltage vs Common-Mode Voltage 12 0 2 -500 1.5 D004 2.5 3.5 VS (V) 4.5 5.5 D005 Figure 7-6. Offset Voltage vs Power Supply Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 7.7 TLV6741: Typical Characteristics (continued) at TA = 25°C, VS = 5.5 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2, unless otherwise noted. 8 20 IB IB+ IOS 6 4 -20 IB and IOS (pA) IB and IOS (pA) IB IB IOS 0 2 0 -2 -40 -60 -80 -4 -100 -6 -8 -120 -4 -3 -2 -1 0 1 2 3 VCM (V) 4 0 100 100 40 75 75 30 50 50 25 25 0 0 -25 -75 1k 10k 100k 1M Frequency (Hz) 150 D044 Gain (dB) 20 -25 Gain Phase 100 Temperature (qC) Figure 7-8. IB and IOS vs Temperature Phase (q) Open-Loop Gain (dB) Figure 7-7. IB and IOS vs Common-Mode Voltage -50 50 D043 10 0 -10 -20 Gain = -1 Gain = 10 Gain = 1 -50 -30 -75 -40 1k 10M 10k 100k Frequency (Hz) D006 1M 10M D007 Figure 7-10. Closed-Loop Gain vs Frequency CL = 10 pF Figure 7-9. Open-Loop Gain and Phase vs Frequency 120 3 PSRR (dB) PSRR+ (dB) 2.5 100 2 -40°C 125°C 1 85°C 25°C 80 PSRR (dB) Output Voltage (V) 1.5 0.5 0 -0.5 60 40 -1 125°C -1.5 85°C 25°C -40°C 20 -2 -2.5 -3 10 15 20 25 30 35 40 45 Output Current (mA) 50 55 60 0 1k Figure 7-11. VO vs I Sourcing and Sinking 10k 100k Frequency (Hz) D010 1M D011 Figure 7-12. PSRR vs Frequency (Referred to Input) Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 13 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 7.7 TLV6741: Typical Characteristics (continued) at TA = 25°C, VS = 5.5 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2, unless otherwise noted. 120 10 110 100 90 5 CMRR (PV/V) CMRR (dB) 80 70 60 50 40 0 30 -5 20 10 0 1k 10k 100k -10 -50 1M Frequency (Hz) 0 D011 Figure 7-13. CMRR vs Frequency (Referred to Input) 50 Temperature (qC) 100 150 D012 VS = 5.5 V, TA = –40°C to 125°C, VCM = 0 V to 4.3 V Figure 7-14. CMRR vs Temperature Voltage (0.5PV/div) Input Voltage Noise Spectral Density (nV/—Hz) 100 1 10 Time (1 s/div) D014 -95 -95 -97 -97 -99 -101 -103 -105 100 100 1k Frequency (Hz) 10k 100k D015 Figure 7-16. Input Voltage Noise Spectral Density vs Frequency THD + N (dB) THD + N (dB) Figure 7-15. 0.1-Hz to 10-Hz Flicker Noise -99 -101 -103 1k Frequency (Hz) -105 100 10k 1k Frequency (Hz) D017 VS = 5.5 V, VICM = 2.5 V, RL = 2 kΩ, Gain = 1, BW = 80 kHz, VOUT = 0.5 Vrms Figure 7-17. THD + N vs Frequency 14 10 10k D017 VS = 5.5 V, VICM = 2.5 V, RL = 10 kΩ, Gain = 1, BW = 80 kHz, VOUT = 0.5 Vrms Figure 7-18. THD + N vs Frequency Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 7.7 TLV6741: Typical Characteristics (continued) at TA = 25°C, VS = 5.5 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2, unless otherwise noted. 1000 0 Gain = +1, RL = 2 k: Gain = +1, RL = 10 k: 950 900 Quiescent Current (PA) THD + N (dB) -20 Gain = 1, RL = 2 k: Gain = 1, RL = 10 k: -40 -60 -80 -100 850 800 750 700 650 600 550 -120 0.001 0.01 0.1 VOUT (rms) 1 5 500 1.5 D018 VS = 5.5 V, VICM = 2.5 V, BW = 80 kHz, VOUT = 0.5 Vrms 2 2.5 3 3.5 4 Supply Voltage (V) 4.5 5 5.5 D020 Figure 7-20. Quiescent Current vs Supply Voltage Figure 7-19. THD + N vs Amplitude 9 900 8 Open-Loop Gain (PV/V) 10 950 Quiescent Current (PA) 1000 850 800 750 700 650 600 AVDD = 5.5 V AVDD = 1.8 V 7 6 5 4 3 2 550 1 500 -50 0 -60 0 50 Temperature (qC) 100 150 -40 -20 0 D021 Figure 7-21. Quiescent Current vs Temperature 20 40 60 80 Temperature (qC) 100 120 140 D022 RL = 2 kΩ Figure 7-22. Open-Loop Gain vs Temperature 1000 160 Open-Loop Impedance (:) Open Loop Voltage Gain (dB) 200 120 80 40 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 Output Voltage (V) 5 5.5 100 10 1k 10k C023 Figure 7-23. Open-Loop Gain vs Output Voltage 100k Frequency (Hz) 1M 10M D024 AVDD = 5.5 V, VICM = VOCM = 2.75 V Figure 7-24. Open-Loop Output Impedance vs Frequency Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 15 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 7.7 TLV6741: Typical Characteristics (continued) 50 50 40 40 Overshoot (%) Overshoot (%) at TA = 25°C, VS = 5.5 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2, unless otherwise noted. 30 20 10 30 20 10 Overshoot (+) Overshoot ( ) Overshoot (+) Overshoot ( ) 0 0 0 10 20 30 40 50 60 70 Capacitive Load (pF) 80 90 100 0 10 VS = 5.5 V, VICM = 2.75 V, VOCM = 2.75 V, G = 1, 100-mV output step 30 40 50 60 Capacitance (pF) 70 80 90 100 D025 VS = 1.8 V, VICM = 0.9 V VOCM = 0.9 V, G = 1, 100-mV output step Figure 7-25. Small-Signal Overshoot vs Load Capacitance Figure 7-26. Small-Signal Overshoot vs Load Capacitance 50 50 40 40 Overshoot (%) Overshoot (%) 20 D025 30 20 10 30 20 10 Overshoot (+) Overshoot ( ) Overshoot (+) Overshoot ( ) 0 0 0 10 20 30 40 50 60 70 Capacitive Load (pF) 80 90 100 0 10 20 D025 VS = 5.5 V, VICM = 2.75 V, VOCM = 2.75 V, Gain = –1, 100-mV output step 30 40 50 60 Capacitance (pF) 70 80 90 100 D025 VS = 1.8 V, VICM = 0.9 V VOCM = 0.9 V, Gain = –1, 100-mV output step Figure 7-27. Small-Signal Overshoot vs Load Capacitance Figure 7-28. Small-Signal Overshoot vs Load Capacitance Voltage (1 V/div) Voltage (1 V/div) Input Output Input Output Time (2 Ps/div) Time (25 Ps/div) D027 Figure 7-29. No Phase Reversal 16 D028 Figure 7-30. Overload Recovery Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 7.7 TLV6741: Typical Characteristics (continued) at TA = 25°C, VS = 5.5 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2, unless otherwise noted. VIN VOUT Voltage (0.5 V/div) Voltage (20 mV/div) VIN VOUT Time (1 Ps/div) Time (2 Ps/div) D030 D031 VS = 5.5 V, VOCM = 2.75 V, CL = 10 pF VICM = 2.75 V, Gain = 1, 2-V step Figure 7-31. Small-Signal Step Response Figure 7-32. Large Signal Step Response Output Voltage ( 5 mV/div) Output Voltage (10 mV/div) VS = 1.8 V, VICM = 0.9 V, VOCM = 0.9 V CL = 30 pF, Gain = 1, VIN = 100-mVpp Time (0.2 Ps/div) Time (0.1 Ps/div) D032 D033 VS = 5.5 V, VICM = 2.75 V, VOCM = 2.75 V CL = 0, Gain = 1, 5-V step VS = 5.5 V, VICM = 2.75 V, VOCM = 2.75 V CL = 0, Gain = 1, 5-V step Figure 7-33. Large Signal Settling Time (Positive) Figure 7-34. Large Signal Settling Time (Negative) 100 6 Sourcing Sinking Maximum Output Voltage (V) Short Circuit Current (mA) 80 60 40 20 0 -20 -40 -60 VS = 1.8 V VS = 5.5 V 5 4 3 2 1 -80 -100 -50 0 0 50 Temperature (qC) 100 150 1 10 D034 Figure 7-35. Short-Circuit Current vs Temperature 100 1k 10k 100k Frequency (Hz) 1M 10M 100M D035 VICM = VS / 2, VOCM = VS / 2, CL = 10 pF, Gain = 1 Figure 7-36. Maximum Output Voltage vs Frequency Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 17 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 7.7 TLV6741: Typical Characteristics (continued) at TA = 25°C, VS = 5.5 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2, unless otherwise noted. 120 60 50 Phase Margin (q) EMIRR IN + (dB) 100 80 60 40 20 10M 40 30 20 10 VS = 1.8 V VS = 5.5 V 0 100M 1G Frequency (Hz) 10G 0 20 40 Capacitive Load (pF) D036 Figure 7-37. Electromagnetic Interference Rejection Ratio Referred to Noninverting Input (EMIRR+) vs Frequency 60 D037 VICM = VOCM = VS / 2 Figure 7-38. Phase Margin vs Capacitive Load 7.8 TLV6742: Typical Characteristics 2500 22 2250 20 2000 18 16 1750 Population (%) Number of Amplifiers (#) at TA = 25°C, VS = ±2.75 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2, unless otherwise noted. 1500 1250 1000 14 12 10 8 750 6 500 4 250 2 0 -500 -400 -300 -200 -100 0 100 200 300 400 500 Offset Voltage (µV) D001 VCM = V– 0 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 Offset Voltage Drift (PV/qC) D002 Figure 7-40. Offset Voltage Drift Distribution Figure 7-39. Offset Voltage Production Distribution 18 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 7.8 TLV6742: Typical Characteristics (continued) 200 4800 160 4000 120 3200 Offset Voltage (µV) Offset Voltage (µV) at TA = 25°C, VS = ±2.75 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2, unless otherwise noted. 80 40 0 -40 -80 2400 1600 800 0 -800 -1600 -120 -2400 -160 -3200 -200 -40 -20 0 20 40 60 80 Temperature (qC) 100 120 -4000 -40 140 -20 0 20 D003 VCM = V– 120 140 D004 Figure 7-42. Offset Voltage vs Temperature (NMOS Input Pair) 5000 200 4000 160 3000 120 Offset Voltage (µV) Offset Voltage (µV) 100 VCM = V+ Figure 7-41. Offset Voltage vs Temperature (PMOS Input Pair) 2000 1000 0 -1000 80 40 0 -40 -80 -2000 -120 -3000 -160 -4000 -3 40 60 80 Temperature (°C) -2.4 -1.8 -1.2 -0.6 0 0.6 1.2 1.8 Input Common Mode Voltage (V) 2.4 -200 -3 3 -2.5 -2 D005 Over full common-mode voltage range Figure 7-43. Offset Voltage vs Common-Mode Voltage (Full Range) -1.5 -1 -0.5 0 0.5 1 Input Common Mode Voltage (V) 1.5 2 D006 Figure 7-44. Offset Voltage vs Common-Mode Voltage (PMOS Input Pair) 300 4000 240 180 2000 Offset Voltage (PV) Offset Voltage (µV) 3000 1000 0 -1000 -2000 120 60 0 -60 -120 -180 -3000 -4000 1.8 -240 1.9 2 2.1 2.2 Input Common Mode Voltage (V) 2.3 Figure 7-45. Offset Voltage vs Common-Mode Voltage (Transition Region) 2.4 -300 1.5 2 D007 2.5 3 3.5 4 4.5 Supply Voltage (V) 5 5.5 6 D008 Figure 7-46. Offset Voltage vs Power Supply Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 19 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 7.8 TLV6742: Typical Characteristics (continued) at TA = 25°C, VS = ±2.75 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2, unless otherwise noted. 320 40 280 30 240 IB and IOS current (pA) 50 IB and IOS (pA) 20 10 0 -10 -20 -30 IBIB+ IOS -40 -50 -3 -2.5 -2 -1.5 -1 -0.5 0 0.5 VCM (V) 1 1.5 2 2.5 IBIB+ IOS 200 160 120 80 40 0 -40 -40 3 -20 0 20 D009 120 140 D010 Voltage (0.2 PV/div) 100 70 50 30 20 10 7 5 3 2 1 10 Time (1 s/div) 100 1k Frequency (Hz) D011 Figure 7-49. 0.1-Hz to 10-Hz Flicker Noise 10k 100k D012 Figure 7-50. Input Voltage Noise Spectral Density vs Frequency 120 130 CMRR PSRR+ PSRR- 110 115 90 CMRR (dB) PSRR and CMRR (dB) 100 Figure 7-48. IB and IOS vs Temperature Voltage noise spectral density (nV/rtHz) Figure 7-47. IB and IOS vs Common-Mode Voltage 40 60 80 Temperature (°C) 70 110 50 105 30 10 1k 10k 100k Frequency (Hz) 1M 10M 100 -40 -20 0 D013 Figure 7-51. CMRR and PSRR vs Frequency (Referred to Input) 20 40 60 80 Temperature (°C) 100 120 140 D014 VS = 5.5 V, VCM = V– to (V+) – 1.2 V Figure 7-52. CMRR vs Temperature 20 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 7.8 TLV6742: Typical Characteristics (continued) 120 130 Gain (dB) PSRR (dB) 125 120 115 110 -40 -20 0 20 40 60 80 Temperature (°C) 100 120 140 100 210 Gain Phase 180 80 150 60 120 40 90 20 60 0 30 -20 100 0 1k 10k 100k Frequency (Hz) D015 VCM = V– 60 0.6 Open Loop Voltage Gain (uV/V) 0.66 Gain (dB) 40 20 0 -20 G=1 G = -1 G = 10 G = 100 G = 1000 -80 1k 10M D016 Figure 7-54. Open-Loop Gain and Phase vs Frequency 80 -60 1M CL = 10 pF Figure 7-53. PSRR vs Temperature -40 Phase (degree) at TA = 25°C, VS = ±2.75 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2, unless otherwise noted. VS=1.8V RL=10k: VS=1.8V RL=2k: VS=5.5V RL=10k: VS=5.5V RL=2k: 0.54 0.48 0.42 0.36 0.3 0.24 0.18 0.12 10k 100k Frequency (Hz) 1M 0.06 -40 10M -20 0 D017 20 40 60 80 Temperature (°C) 100 120 140 D018 Figure 7-56. Open-Loop Gain vs Temperature CL = 10 pF Figure 7-55. Closed-Loop Gain vs Frequency 180 55 160 50 120 Phase Margin (°) Open-Loop Gain (dB) 140 100 80 60 40 20 45 40 35 0 -20 -0.5 0.5 1.5 2.5 3.5 Output Voltage (V) 4.5 30 10 5.5 20 D019 Figure 7-57. Open-Loop Gain vs Output Voltage 30 40 50 60 70 Capacitive Load (pF) 80 90 100 D020 Figure 7-58. Phase Margin vs Capacitive Load Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 21 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 7.8 TLV6742: Typical Characteristics (continued) at TA = 25°C, VS = ±2.75 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2, unless otherwise noted. 4 60 Input Output 3 RISO = 0:, Overshoot (-) RISO = 0:,Overshoot (+) RISO = 50:, Overshoot (-) RISO = 50:,Overshoot (+) 50 Overshoot (%) Amplitude (V) 2 1 0 -1 40 30 20 -2 10 -3 -4 0 0 Time (10 µs/div) 20 D021 Figure 7-59. No Phase Reversal 40 60 Capacitive Load (pF) 80 100 D022 VCM = VS / 2, RL = 1 kΩ Gain = –1, 100-mV output step Figure 7-60. Small-Signal Overshoot vs Load Capacitance 5 70 RISO = 0:, Overshoot (-) RISO = 0:,Overshoot (+) RISO = 50:, Overshoot (-) RISO = 50:,Overshoot (+) 60 2.5 Amplitude (V) Overshoot (%) 50 40 30 20 0 -2.5 10 Input Output -5 0 0 25 50 75 Capacitive Load (pF) 100 Time (10 µs/div) 125 D024 D023 VCM = VS / 2, RL = 1 kΩ Gain = +1, 100-mV output step VIN=0.6 Vpp, G = –10, VIN × gain > VS Figure 7-62. Overload Recovery Figure 7-61. Small-Signal Overshoot vs Load Capacitance 22 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 7.8 TLV6742: Typical Characteristics (continued) at TA = 25°C, VS = ±2.75 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2, unless otherwise noted. 0.1 0.1 Input Output Input Output 0.08 0.06 0.06 0.04 0.04 Amplitude (V) Amplitude (V) 0.08 0.02 0 -0.02 0.02 0 -0.02 -0.04 -0.04 -0.06 -0.06 -0.08 -0.08 -0.1 -0.1 Time (1 µs/div) Time (1 µs/div) D027 D025 CL = 20 pF, Gain = 1, VIN = 100-mVpp , RL = 1 kΩ CL = 20 pF, Gain = –1, VIN = 100-mVpp, RL = 1 kΩ Figure 7-63. Small-Signal Step Response Figure 7-64. Small-Signal Step Response 1.25 1.25 Input Output Input Output 1 0.75 0.75 0.5 0.5 Amplitude (V) Amplitude (V) 1 0.25 0 -0.25 0.25 0 -0.25 -0.5 -0.5 -0.75 -0.75 -1 -1 -1.25 -1.25 Time (1 µs/div) Time (1 µs/div) D026 D028 Figure 7-65. Large Signal Step Response Figure 7-66. Large Signal Step Response Output Delta from Final Value (5 mV/div) CL = 20 pF, Gain = –1, VIN = 2-V step, RL = 1 kΩ Output Delta from Final Value (5 mV/div) CL = 20 pF, Gain = +1, VIN = 2-V step, RL = 1 kΩ 0.1% Settling Time Step Applied at t = 0 0.1% Settling Time Step Applied at t = 0 Time (0.25 Ps/div) Time (0.25 Ps/div) D029 CL = 20 pF, Gain = 1, VIN = 2-V step Figure 7-67. Large Signal Settling Time (Positive) D050 CL = 20 pF, Gain = –1, VIN = 2-V step Figure 7-68. Large Signal Settling Time (Negative) Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 23 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 7.8 TLV6742: Typical Characteristics (continued) at TA = 25°C, VS = ±2.75 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2, unless otherwise noted. -40 -80 -84 -88 RL = 600 : RL = 2 k: RL = 10 k: -60 THD+N (dB) THD+N (dB) -92 -96 -100 -104 -80 -108 -100 -112 RL = 10 k: RL = 2 k: RL = 600 : -116 -120 1m -120 100 1k Frequency (Hz) 10k 10m D030 VCM = 2.5 V Gain = +1, BW = 80 kHz, VOUT = 0.5 Vrms 3 2.8 2.6 2.4 2.2 2 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 -40q 25q 85q 125q Output Voltage (V) Output Voltage (V) D031 Figure 7-70. THD + N vs Amplitude 0 -0.2 -0.4 -0.6 -0.8 -1 -1.2 -1.4 -1.6 -1.8 -2 -2.2 -2.4 -2.6 -2.8 -3 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 Output Current (mA) D032 -40q 25q 85q 125q 0 Figure 7-71. VOUT vs Sourcing Current 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 Output Current (mA) D033 Figure 7-72. VOUT vs Sinking Current 6 80 Short Circuit Current Limit (mA) Maximum Output Voltage (V) 1 VCM = 2.5 V BW = 80 kHz Figure 7-69. THD + N vs Frequency 0 100m VOUT (rms) 5 4 3 2 1 0 1 10 100 1k 10k 100k Frequency (Hz) 1M 10M 100M 75 70 65 60 55 50 -40 -20 D034 CL = 10 pF, Gain = +1, VS= 5.5 V 0 20 40 60 80 Temperature (°C) 100 120 140 D035 Figure 7-74. Short-Circuit Current vs Temperature Figure 7-73. Maximum Output Voltage vs Frequency 24 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 7.8 TLV6742: Typical Characteristics (continued) 1000 1000 990 990 980 980 Quiescent Current (µA) Quiescent current (µA) at TA = 25°C, VS = ±2.75 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2, unless otherwise noted. 970 960 950 940 930 920 970 960 950 940 930 920 910 910 900 1.5 900 -40 2 2.5 3 3.5 4 4.5 Supply Voltage (V) 5 5.5 6 0 20 40 60 80 Temperature (°C) 100 120 140 D037 Figure 7-76. Quiescent Current vs Temperature 1200 -50 1100 -60 1000 Channel Seperation (dB) Open-loop output impedance (:) Figure 7-75. Quiescent Current vs Supply Voltage 900 800 700 600 500 400 300 200 -70 -80 -90 -100 -110 -120 -130 -140 100 0 1k -20 D036 10k 100k Frequency (Hz) 1M -150 100 10M 1k D038 Figure 7-77. Open-Loop Output Impedance vs Frequency 10k 100k Frequency (Hz) 1M 10M D040 AVDD = 5.5 V, VICM = VOCM = 2.75 V 6.5 100 5.5 60 40 3.5 2.5 1.5 20 0 10M Supply Voltage Output 4.5 80 Voltage (V) EMIRR (dB) Figure 7-78. Channel Separation vs Frequency 120 0.5 -0.5 100M 1G Frequency (Hz) 10G Time (5 Ps/div) D041 D039 Figure 7-79. Electromagnetic Interference Rejection Ratio Referred to Noninverting Input (EMIRR+) vs Frequency VS = 0 to 5.5 V, VOUT = 0 to 2.75 V Figure 7-80. Turn-On Time Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 25 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 8 Detailed Description 8.1 Overview The TLV674x family is an ultra low-noise, rail-to-rail output operational amplifier family. These devices operate from a supply voltage of 2.25 V to 5.5 V (TLV6741) and 1.7 V to 5.5 V (TLV6742 and TLV6744), are unity-gain stable, and suitable for a wide range of general-purpose applications. The input common-mode voltage range includes the negative rail and allows the TLV674x op amp family to be used in most single-supply applications. Rail-to-rail output swing significantly increases dynamic range, especially in low-supply applications, and makes it suitable for many audio applications as well as driving sampling analog-to-digital converters (ADCs). 8.2 Functional Block Diagram V+ Reference Current VIN+ VINVBIAS1 Class AB Control Circuitry VO VBIAS2 V(Ground) 8.3 Feature Description 8.3.1 THD+ Noise Performance TLV674x operational amplifier family has excellent distortion characteristics. TLV6742 and TLV6744 THD + Noise is below 0.00015% (G = +1, VO = 1 VRMS, VCM = 1.8 V, VS = 5.5 V) throughout the audio frequency range, 20 Hz to 20 kHz with a 10-kΩ load. TLV6741 THD + Noise is below 0.00035% (G = +1, VO = 1 VRMS, V CM = 2.5 V, VS = 5.5 V) throughout the audio frequency range, 20 Hz to 20 kHz, with a 10-kΩ load. Broadband noise of 3.5 nV/√ Hz (TLV6742/4) and 3.7 nV/√ Hz (TLV6741) is extremely low for a 10-MHz general purpose amplifier. 8.3.2 Operating Voltage The TLV674x operational amplifier family is fully specified and assured for operation from 1.7 V to 5.5 V (TLV6742/4) and 2.25 V to 5.5 V (TLV6741). In addition, many specifications apply from –40°C to 125°C. Power-supply pins should be bypassed with 0.1-µF ceramic capacitors. 8.3.3 Rail-to-Rail Output Designed as a low-power, low-voltage operational amplifier, the TLV674x devices deliver a robust output drive capability. A class AB output stage with common-source transistors achieves full rail-to-rail output swing capability. For resistive loads of 10-kΩ, the output swings to within a few mV of either supply rail, regardless of the applied power-supply voltage. Different load conditions change the ability of the amplifier to swing close to the rails, see Figure 7-11. 26 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 8.3.4 EMI Rejection The TLV674x uses integrated electromagnetic interference (EMI) filtering to reduce the effects of EMI from sources such as wireless communications and densely-populated boards with a mix of analog signal chain and digital components. EMI immunity can be improved with circuit design techniques; the TLV674x benefits from these design improvements. Texas Instruments has developed the ability to accurately measure and quantify the immunity of an operational amplifier over a broad frequency spectrum extending from 10 MHz to 6 GHz. Figure 8-1 shows the results of this testing on the TLV674x. Table 8-1 shows the EMIRR IN+ values for the TLV674x at particular frequencies commonly encountered in real-world applications. The EMI Rejection Ratio of Operational Amplifiers application report contains detailed information on the topic of EMIRR performance as it relates to op amps and is available for download from www.ti.com. 120 EMIRR (dB) 100 80 60 40 20 0 10M 100M 1G Frequency (Hz) 10G D039 Figure 8-1. EMIRR Testing Table 8-1. TLV674x EMIRR IN+ for Frequencies of Interest FREQUENCY APPLICATION OR ALLOCATION EMIRR IN+ 400 MHz Mobile radio, mobile satellite, space operation, weather, radar, ultra-high frequency (UHF) applications 59.5 dB 900 MHz Global system for mobile communications (GSM) applications, radio communication, navigation, GPS (to 1.6 GHz), GSM, aeronautical mobile, UHF applications 68.9 dB 1.8 GHz GSM applications, mobile personal communications, broadband, satellite, L-band (1 GHz to 2 GHz) 77.8 dB 2.4 GHz 802.11b, 802.11g, 802.11n, Bluetooth®, mobile personal communications, industrial, scientific and medical (ISM) radio band, amateur radio and satellite, S-band (2 GHz to 4 GHz) 78.0 dB 3.6 GHz Radiolocation, aero communication and navigation, satellite, mobile, S-band 88.8 dB 802.11a, 802.11n, aero communication and navigation, mobile communication, space and satellite operation, C-band (4 GHz to 8 GHz) 87.6 dB 5 GHz Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 27 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 8.3.5 Electrical Overstress Designers often ask questions about the capability of an operational amplifier to withstand electrical overstress (EOS). These questions tend to focus on the device inputs, but may involve the supply voltage pins or even the output pin. Each of these different pin functions have electrical stress limits determined by the voltage breakdown characteristics of the particular semiconductor fabrication process and specific circuits connected to the pin. Additionally, internal electrostatic discharge (ESD) protection is built into these circuits to protect them from accidental ESD events both before and during product assembly. Having a good understanding of this basic ESD circuitry and its relevance to an electrical overstress event is helpful. Figure 8-2 shows an illustration of the ESD circuits contained in the TLV674x (indicated by the dashed line area). The ESD protection circuitry involves several current-steering diodes connected from the input and output pins and routed back to the internal power-supply lines, where the diodes meet at an absorption device or the power-supply ESD cell, internal to the operational amplifier. This protection circuitry is intended to remain inactive during normal circuit operation. TVS + ± RF +VS VDD R1 RS IN± 100 Ÿ IN+ 100 Ÿ OPAx990 ± + Power-Supply ESD Cell ID VIN RL + ± VSS + ± ±VS TVS Figure 8-2. Equivalent Internal ESD Circuitry Relative to a Typical Circuit Application An ESD event is very short in duration and very high voltage (for example; 1 kV, 100 ns), whereas an EOS event is long in duration and lower voltage (for example; 50 V, 100 ms). The ESD diodes are designed for out-of-circuit ESD protection (that is, during assembly, test, and storage of the device before being soldered to the PCB). During an ESD event, the ESD signal is passed through the ESD steering diodes to an absorption circuit (labeled ESD power-supply circuit). The ESD absorption circuit clamps the supplies to a safe level. Although this behavior is necessary for out-of-circuit protection, excessive current and damage is caused if activated in-circuit. A transient voltage suppressor (TVS) can be used to prevent against damage caused by turning on the ESD absorption circuit during an in-circuit ESD event. Using the appropriate current limiting resistors and TVS diodes allows for the use of device ESD diodes to protect against EOS events. 28 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 The TLV674x family incorporates internal electrostatic discharge (ESD) protection circuits on all pins, as shown above. These ESD protection diodes also provide in-circuit, input overdrive protection, as long as the current is limited to 10 mA as stated in Section 7.1. Figure 8-3 shows how a series input resistor may be added to the driven input to limit the input current. The added resistor contributes thermal noise at the amplifier input and its value should be kept to a minimum in noise-sensitive applications. V+ IOVERLOAD 10-mA max VOUT Device VIN 5 kW Figure 8-3. Input Current Protection 8.3.6 Typical Specifications and Distributions Designers often have questions about a typical specification of an amplifier in order to design a more robust circuit. Due to natural variation in process technology and manufacturing procedures, every specification of an amplifier will exhibit some amount of deviation from the ideal value, like an amplifier's input offset voltage. These deviations often follow Gaussian ("bell curve"), or normal, distributions and circuit designers can leverage this information to guardband their system, even when there is not a minimum or maximum specification in Section 7.6. 0.00002% 0.00312% 0.13185% 1 -61 1 -51 2.145% 13.59% 34.13% 34.13% 13.59% 2.145% 1 1 -41 -31 1 -21 1 -1 1 1 +1 1 0.13185% 0.00312% 0.00002% 1 1 1 +21 +31 +41 +51 +61 Figure 8-4. Ideal Gaussian Distribution Figure 8-4 shows an example distribution, where µ, or mu, is the mean of the distribution, and where σ, or sigma, is the standard deviation of a system. For a specification that exhibits this kind of distribution, approximately two-thirds (68.26%) of all units can be expected to have a value within one standard deviation, or one sigma, of the mean (from µ–σ to µ+σ). Depending on the specification, values listed in the typical column of Section 7.6 are represented in different ways. As a general rule of thumb, if a specification naturally has a nonzero mean (for example, like gain bandwidth), then the typical value is equal to the mean (µ). However, if a specification naturally has a mean near Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 29 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 zero (like input offset voltage), then the typical value is equal to the mean plus one standard deviation (µ + σ) in order to most accurately represent the typical value. You can use this chart to calculate approximate probability of a specification in a unit; for example, for TLV6742, the typical input voltage offset is 150 µV, so 68.2% of all TLV6742 devices are expected to have an offset from –150 µV to 150 µV. Specifications with a value in the minimum or maximum column are assured by TI, and units outside these limits will be removed from production material. For example, the TLV6742 device has a maximum offset voltage of 1.0 mV at 25°C, and even though this corresponds to 5 σ (≈1 in 1.7 million units), which is extremely unlikely, TI assures that any unit with a larger offset than 1.0 mV will be removed from production material. For specifications with no value in the minimum or maximum column, consider selecting a sigma value of sufficient guardband for your application, and design worst-case conditions using this value. For example, the 6σ value corresponds to about 1 in 500 million units, which is an extremely unlikely chance, and could be an option as a wide guardband to design a system around. In this case, the TLV6742 does not have a maximum or minimum for offset voltage drift, but based on Figure 7-40 and the typical value of 0.2 µV/°C in Section 7.6, it can be calculated that the 6-σ value for offset voltage drift is about 1.0 µV/°C. When designing for worst-case system conditions, this value can be used to estimate the worst possible offset across temperature without having an actual minimum or maximum value. However, process variation and adjustments over time can shift typical means and standard deviations, and unless there is a value in the minimum or maximum specification column, TI cannot assure the performance of a device. This information should be used only to estimate the performance of a device. 8.3.7 Shutdown Function The TLV674xS devices feature SHDN pins that disable the op amp, placing it into a low-power standby mode. In this mode, the op amp typically consumes less than 1 µA. The SHDN pins are active-low, meaning that shutdown mode is enabled when the input to the SHDN pin is a valid logic low. The SHDN pins are referenced to the negative supply voltage of the op amp. The threshold of the shutdown feature lies around 800 mV (typical) above the negative rail. Hysteresis has been included in the switching threshold to ensure smooth switching characteristics. To ensure optimal shutdown behavior, the SHDN pins should be driven with valid logic signals. A valid logic low is defined as a voltage between V– and V– + 0.2 V. A valid logic high is defined as a voltage between V– + 1.2 V and V+. The shutdown pin must either be connected to a valid high or a low voltage or driven, and not left as an open circuit. There is no internal pull-up to enable the amplifier. The SHDN pins are high-impedance CMOS inputs. Dual op amp versions are independently controlled, and quad op amp versions are controlled in pairs with logic inputs. For battery-operated applications, this feature may be used to greatly reduce the average current and extend battery life. The enable time is 15 µs for full shutdown of all channels; disable time is 3 µs. When disabled, the output assumes a high-impedance state. This architecture allows the TLV674xS to be operated as a gated amplifier (or to have the device output multiplexed onto a common analog output bus). Shutdown time (tOFF) depends on loading conditions and increases as load resistance increases. To ensure shutdown (disable) within a specific shutdown time, the specified 10-kΩ load to midsupply (VS / 2) is required. If using the TLV674xS without a load, the resulting turnoff time is significantly increased. 8.3.8 Packages With an Exposed Thermal Pad The TLV674x family is available in packages such as the WSON-8 (DSG) which feature an exposed thermal pad. Inside the package, the die is attached to this thermal pad using an electrically conductive compound. For this reason, when using a package with an exposed thermal pad, the thermal pad must either be connected to V– or left floating. Attaching the thermal pad to a potential other than V– is not allowed, and performance of the device is not assured when doing so. 30 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 8.4 Device Functional Modes The TLV674x family has a single functional mode. The TLV6742 and TLV6744 are powered on as long as the power-supply voltage is between 1.7 V (±0.85 V) and 5.5 V (±2.75 V).The TLV6741 is powered on as long as the power-supply voltage is between 2.25 V (±1.125 V) and 5.5 V (±2.75 V). Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 31 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 9 Application and Implementation Note Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 9.1 Application Information The TLV674x family features 10-MHz bandwidth and 4.5-V/µs slew rate with only 890-µA (TLV6741), 990-µA (TLV6742/4) of supply current per channel, providing good AC performance at very-low-power consumption. DC applications are well served with a very-low input noise voltage of 3.5 nV /vHz (TLV6742/4), 3.7 nV / vHz (TLV6741) at 10 kHz, low input bias current, and a typical input offset voltage of 0.15 mV. 9.2 Single-Supply Electret Microphone Preamplifier With Speech Filter Electret microphones are commonly used in portable electronics because of their small size, low cost, and relatively good signal-to-noise ratio (SNR). The small package size, low operating voltage and excellent AC performance of the TLV674x family make it an excellent choice for preamplifier circuits for electret microphones. The circuit shown in Figure 9-1 is a single-supply preamplifier circuit for electret microphones, highlighting the TLV6741 device. 3V RBIAS 2.2 k R1 200 k 3V + Electret Microphone 3V CIN 68 nF TLV6741 VOUT R2 200 k RF 10 k RG 78.7 CF 3.3 nF CG 10 µF Copyright © 2017, Texas Instruments Incorporated Figure 9-1. Microphone Preamplifier 9.2.1 Design Requirements The design requirements are as follows: • • • • Supply voltage: 3 V Input: 7.93 mVRMS (0.63 Pa with a –38 dB SPL microphone) Output: 1 VRMS Bandwidth: 300 Hz to 3 kHz 9.2.2 Detailed Design Procedure The transfer function defining the relationship between VOUT and the AC input signal is shown in Equation 1: 32 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 TLV6741, TLV6742 www.ti.com VOUT SBOS817I – JUNE 2017 – REVISED AUGUST 2021 § RF · VIN _ AC u ¨1 ¸ © RG ¹ (1) The required gain can be calculated based on the expected input signal level and desired output level as shown in Equation 2: GOPA VOUT VIN _ AC 1VRMS 7.93mVRMS 126 V V (2) Select a standard 10-kΩ feedback resistor and calculate RG. RG RF GOPA 1 10k : V 126 1 V 80: o 78.7: (closest standard value) (3) To minimize the attenuation in the desired passband from 300 Hz to 3 kHz, set the upper (fH) and lower (fL) cutoff frequencies outside of the desired bandwidth as: fL = 200 Hz (4) fH = 5 kHz (5) and Select CG to set the fL cutoff frequency using Equation 6: CG 1 2 u S u RG u f L 1 2 u S u 78.7: u 200 Hz 10.11P F o 10 P F (6) Select CF to set the fH cutoff frequency using Equation 7: CF 1 2 u S u RF u f H 1 2 u S u 10k : u 5kHz 3.18nF o 3.3nF (Standard Value) (7) The input signal cutoff frequency should be set low enough such that low-frequency sound waves still pass through. Therefore select CIN to achieve a 30-Hz cutoff frequency (fIN) using Equation 8: CIN 1 2 u S u ( R1 || R2 ) u f IN 1 2 u S u100k :u 30 Hz 53nF o 68nF (Standard Value) (8) The measured transfer function for the microphone preamplifier circuit is shown in Figure 9-2 and the measured THD+N performance of the microphone preamplifier circuit is shown in Figure 9-3. Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 33 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 9.2.3 Application Curves 50 0 40 ±20 THD + N (dB) Gain (dB) 30 20 10 ±40 ±60 0 ±10 20 200 2000 20000 Frequency (Hz) 0.05 0.5 RMS Output Voltage (V) C039 Figure 9-2. Gain vs Frequency 34 ±80 0.005 5 C040 Figure 9-3. THD + N vs RMS Output Voltage Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 10 Power Supply Recommendations The TLV6742 and TLV6744 devices are specified for operation from 1.7 V to 5.5 V (±0.85 V to ±2.75 V). The TLV6741 device is specified for operation from 2.25 V to 5.5 V (±1.125 V to ±2.75 V). Many specifications of the TLV674x family apply from –40°C to 125°C. CAUTION Supply voltages larger than 7 V can permanently damage the device (see Section 7.1). Place 0.1-µF bypass capacitors close to the power-supply pins to reduce errors coupling in from noisy or high-impedance power supplies. For more detailed information on bypass capacitor placement, see Section 11.1. Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 35 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 11 Layout 11.1 Layout Guidelines For best operational performance of the device, use good PCB layout practices, including: • • • • • • 36 Noise can propagate into analog circuitry through the power pins of the circuit as a whole and the operational amplifier. Bypass capacitors are used to reduce the coupled noise by providing low-impedance power sources local to the analog circuitry. – Connect low-ESR, 0.1-µF ceramic bypass capacitors between each supply pin and ground, placed as close to the device as possible. A single bypass capacitor from V+ to ground is applicable for singlesupply applications. Separate grounding for analog and digital portions of the circuitry is one of the simplest and most effective methods of noise suppression. One or more layers on multilayer PCBs are usually devoted to ground planes. A ground plane helps distribute heat and reduces EMI noise pickup. Make sure to physically separate digital and analog grounds, paying attention to the flow of the ground current. To reduce parasitic coupling, run the input traces as far away from the supply or output traces as possible. If these traces cannot be kept separate, crossing the sensitive trace perpendicularly is much better than crossing in parallel with the noisy trace. Place the external components as close to the device as possible. Keeping RF and RG close to the inverting input minimizes parasitic capacitance, as shown in Figure 11-1. Keep the length of input traces as short as possible. Always remember that the input traces are the most sensitive part of the circuit. Consider a driven, low-impedance guard ring around the critical traces. A guard ring can significantly reduce leakage currents from nearby traces that are at different potentials. Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 V+ INPUT 11.2 Layout Example GND GND OUTPUT V- GND Figure 11-1. Operational Amplifier Board Layout for Noninverting Configuration V- C3 INPUT OUTPUT 1 + 3 U1 TLV6741 2 ± 4 R3 C4 C2 V+ R1 C1 R2 Copyright © 2017, Texas Instruments Incorporated Figure 11-2. Schematic Used for Layout Example Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 37 TLV6741, TLV6742 www.ti.com GND OUTPUT A SBOS817I – JUNE 2017 – REVISED AUGUST 2021 GND GND V+ INPUT A VGND GND INPUT B OUTPUT B GND Figure 11-3. Example Layout for VSSOP-8 (DGK) Package 38 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 12 Device and Documentation Support 12.1 Documentation Support 12.1.1 Related Documentation For related documentation see the following: • QFN/SON PCB Attachment. • Quad Flatpack No-Lead Logic Packages. • EMI Rejection Ratio of Operational Amplifiers. 12.2 Receiving Notification of Documentation Updates To receive notification of documentation updates, navigate to the device product folder on ti.com. Click on Subscribe to updates to register and receive a weekly digest of any product information that has changed. For change details, review the revision history included in any revised document. 12.3 Support Resources TI E2E™ support forums are an engineer's go-to source for fast, verified answers and design help — straight from the experts. Search existing answers or ask your own question to get the quick design help you need. Linked content is provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use. 12.4 Trademarks TI E2E™ is a trademark of Texas Instruments. Bluetooth® is a registered trademark of Bluetooth SIG, Inc. All trademarks are the property of their respective owners. 12.5 Electrostatic Discharge Caution This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. 12.6 Glossary TI Glossary This glossary lists and explains terms, acronyms, and definitions. Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 39 TLV6741, TLV6742 www.ti.com SBOS817I – JUNE 2017 – REVISED AUGUST 2021 13 Mechanical, Packaging, and Orderable Information The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation. 40 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TLV6741 TLV6742 PACKAGE OPTION ADDENDUM www.ti.com 9-Sep-2021 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) (4/5) (6) TLV6741DCKR ACTIVE SC70 DCK 5 3000 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 125 18E TLV6741DCKT ACTIVE SC70 DCK 5 250 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 125 18E TLV6742IDDFR ACTIVE SOT-23-THIN DDF 8 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 T42D TLV6742IDGKR ACTIVE VSSOP DGK 8 2500 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 2H8T TLV6742IDR ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 125 T6742D TLV6742IDSGR ACTIVE WSON DSG 8 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 D42S TLV6742IPWR ACTIVE TSSOP PW 8 2000 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 125 T6742P TLV6742SIRUGR ACTIVE X2QFN RUG 10 3000 RoHS & Green NIPDAUAG Level-2-260C-1 YEAR -40 to 125 HHF (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of
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TLV6742IDR
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  • 1+7.20360
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