0
登录后你可以
  • 下载海量资料
  • 学习在线课程
  • 观看技术视频
  • 写文章/发帖/加入社区
创作中心
发布
  • 发文章

  • 发资料

  • 发帖

  • 提问

  • 发视频

创作活动
TLV9041IDPWR

TLV9041IDPWR

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    XFDFN4_EP

  • 描述:

    通用 放大器 1 电路 推挽式,满摆幅 5-X2SON(0.8x0.8)

  • 数据手册
  • 价格&库存
TLV9041IDPWR 数据手册
TLV9041, TLV9042, TLV9044 SBOS836G – MARCH 2020 – REVISED MARCH 2022 TLV904x 1.2-V Ultra Low Voltage, 10µA Micro-Power RRIO Amplifier for Power Conscious Applications 1 Features • • • • • • • • • • • • • Low power CMOS amplifier for cost-optimized applications Operational from supply voltage as low as 1.2 V Low input bias current: 1-pA typical, 12-pA maximum Low quiescent current: 10 µA/ch Low integrated noise of 6.5 µVp-p in 0.1 Hz – 10 Hz Rail-to-rail input and output High gain bandwidth product: 350 kHz Thermal noise floor: 64 nV/√Hz Low input offset voltage: ±0.6 mV Unity-gain stable Robustly drives 100 pF of load capacitance Internal RFI and EMI filtered input pins Wide specified temperature range: –40°C to 125°C 2 Applications • • • • • • • • • Portable electronics Wearable fitness and activity monitor Headsets/headphones and earbuds Personal electronics Building automation Wearables (non-medical) Motion detector (PIR, uWave, etc.) Electronic point of sales (EPOS) Single-supply, low-side, unidirectional currentsensing circuit 3 Description The low-power TLV904x family includes single (TLV9041), dual (TLV9042), and quad-channel (TLV9044) ultra-low-voltage (1.2 V to 5.5 V) operational amplifiers (op-amps) with rail-to-rail input and output swing capabilities. The TLV904x enables power savings both with its low quiescent current (10 µA, typ.) and the ability to operate at supply voltages as low as 1.2 V, making it one of the few amplifiers in the industry capable of 1.5-V coin cell applications. Further power savings can be achieved using the shutdown mode (TLV9041S, TLV9042S, and TLV9044S) that allows the amplifiers to be switched off and enter into a standby mode with typical current consumption of less than 150 nA. These devices offer a cost-effective amplifier solution for power and space-constrained applications such as battery-powered IoT devices, wearable electronics, and personal electronics where low-voltage operation is crucial. The robust design of the TLV904x family simplifies circuit design. These op-amps feature an integrated RFI and EMI rejection filter, unity-gain stability, and no-phase reversal in input overdrive conditions. The device also delivers excellent AC performance with a gain bandwidth of 350 kHz and a high cap load drive of 100 pF, enabling designers to achieve both improved performance and lower power consumption. Space-saving micro-size packages, such as X2QFN and WSON, are offered for all channel variants (single, dual, and quad), along with industry-standard packages such as SOIC, VSSOP, TSSOP, and SOT-23 packages. Device Information PART NUMBER(1) (2) TLV9041 TLV9041S TLV9042 TLV9042S TLV9044 (1) (2) PACKAGE BODY SIZE (NOM) SOT-23 (5) 1.60 mm × 2.90 mm SC70 (5) 1.25 mm × 2.00 mm X2SON (5) 0.80 mm × 0.80 mm SOT-23 (6) 1.60 mm × 2.90 mm SOIC (8) 3.91 mm × 4.90 mm SOT-23 (8) 1.60 mm × 2.90 mm WSON (8) 2.00 mm × 2.00 mm VSSOP (8) 3.00 mm × 3.00 mm TSSOP (8) 3.00 mm × 4.40 mm X2QFN (10) 1.50 mm × 2.00 mm SOIC (14) 8.65 mm × 3.91 mm TSSOP (14) 4.40 mm × 5.00 mm SOT-23 (14) 4.20 mm × 1.90 mm For all available packages, see the orderable addendum at the end of the data sheet. Other single and dual channel package variants will release shortly. RG RF R1 VOUT VIN C1 f-3 dB = ( RF VOUT = 1+ RG VIN (( 1 1 + sR1C1 1 2pR1C1 ( Single-Pole, Low-Pass Filter 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. TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 Table of Contents 1 Features............................................................................1 2 Applications..................................................................... 1 3 Description.......................................................................1 4 Revision History.............................................................. 2 5 Device Comparison Table...............................................3 6 Pin Configuration and Functions...................................3 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 Thermal Information for Quad Channel...................... 8 7.7 Electrical Characteristics.............................................9 7.8 Typical Characteristics.............................................. 11 8 Detailed Description......................................................19 8.1 Overview................................................................... 19 8.2 Functional Block Diagram......................................... 19 8.3 Feature Description...................................................20 8.4 Device Functional Modes..........................................24 9 Application and Implementation.................................. 25 9.1 Application Information............................................. 25 9.2 Typical Application.................................................... 25 10 Power Supply Recommendations..............................28 11 Layout........................................................................... 29 11.1 Layout Guidelines................................................... 29 11.2 Layout Example...................................................... 29 12 Device and Documentation Support..........................31 12.1 Documentation Support.......................................... 31 12.2 Receiving Notification of Documentation Updates..31 12.3 Support Resources................................................. 31 12.4 Electrostatic Discharge Caution..............................31 12.5 Glossary..................................................................31 13 Mechanical, Packaging, and Orderable Information.................................................................... 31 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision F (February 2022) to Revision G (March 2022) Page • Updated Device Information section for X2SON (5) RTM.................................................................................. 1 • Updated Device Comparison section for TLV9041IDPWR RTM........................................................................ 3 • Added Thermal Information for TLV9041 DPW package to the Thermal Information for Single Channel section ............................................................................................................................................................... 7 Changes from Revision E (August 2021) to Revision F (February 2022) Page • Updated Device Comparison section for TLV9044IDYYR RTM......................................................................... 3 • Added Thermal Information for TLV9044 DYY package to the Thermal Information for Quad Channel section ............................................................................................................................................................................7 Changes from Revision D (August 2021) to Revision E (August 2021) Page • Added Thermal Information for TLV9042 DGK package to the Thermal Information for Dual Channel section .. 7 2 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 5 Device Comparison Table DEVICE NO. OF CHANNELS PACKAGE LEADS SC70 DCK SOIC D SOT-23 DBV SOT-23 DYY SOT-23-8 DDF SOT-553 DRL(1) TSSOP PW VSSOP DGK WQFN RTE(1) WSON DSG X2QFN RUC(1) X2SON DPW X2QFN RUG TLV9041 1 5 — 5 — — 5 — — — — — 5 — TLV9041S 1 — — 6 — — — — — — — — — — TLV9042 2 — 8 — — 8 — 8 8 — 8 — — — TLV9042S 2 — — — — — — — — — — — — 10 TLV9044 4 — 14 — 14 — — 14 — 16 — 14 — — (1) Package is preview only. 6 Pin Configuration and Functions OUT 1 V± 2 IN+ 3 5 V+ 4 IN± IN+ 1 V± 2 IN± 3 Not to scale V± 2 4 OUT Figure 6-2. TLV9041U DBV Package 5-Pin SOT-23 Top View OUT 1 V+ Not to scale Figure 6-1. TLV9041 DBV Package 5-Pin SOT-23 Top View IN+ 5 5 1 5 V+ 4 IN+ V+ 3 IN± 3 4 V± OUT IN± 2 Not to scale Not to scale Figure 6-4. TLV9041 DPW Package 5-Pin X2SON Top View Figure 6-3. TLV9041 DCK Package 5-Pin SC70 Top View Table 6-1. Pin Functions: TLV9041 and TLV9041U PIN NO. NAME TLV9041 SOT-23 SC70 TLV9041U X2SON SOT-23 IN– 4 3 2 3 IN+ 3 1 4 OUT 1 4 1 V– 2 2 3 2 V+ 5 5 5 5 I/O DESCRIPTION I Inverting input 1 I Noninverting input 4 O Output I or — Negative (low) supply or ground (for single-supply operation) I Positive (high) supply Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 3 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 OUT 1 6 V+ V± 2 5 SHDN IN+ 3 4 IN± Not to scale Figure 6-5. TLV9041S DBV Package 6-Pin SOT-23 Top View Table 6-2. Pin Functions: TLV9041S PIN NAME NO. I/O DESCRIPTION IN– 4 I Inverting input IN+ 3 I Noninverting input OUT 1 O Output SHDN 5 I Shutdown (low), enabled (high) V– 2 I or — V+ 6 I Negative (low) supply or ground (for single-supply operation) Positive (high) supply 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 6-6. TLV9042 D, DDF, DGK, and PW Package 8-Pin SOIC, SOT-23 8, VSSOP, and TSSOP Top View Not to scale Connect exposed thermal pad to V–. See Section 8.3.11 for more information. Figure 6-7. TLV9042 DSG Package 8-Pin WSON With Exposed Thermal Pad Top View Table 6-3. Pin Functions: TLV9042 PIN NAME 4 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 V– 4 I Negative (low) supply or ground (for single-supply operation) V+ 8 I Positive (high) supply Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 TLV9041, TLV9042, TLV9044 www.ti.com IN1+ SBOS836G – MARCH 2020 – REVISED MARCH 2022 1 9 IN1± SHDN1 2 8 OUT1 SHDN2 3 7 V+ IN2+ 4 6 OUT2 5 10 V± IN2± Not to scale Figure 6-8. TLV9042S RUG Package 10-Pin X2QFN Top View Table 6-4. Pin Functions: TLV9042S PIN NAME 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 = disabled, high = enabled, channel 1 SHDN2 3 I Shutdown – low = disabled, high = enabled, channel 2 V– 1 I Negative (low) supply or ground (for single-supply operation) V+ 7 I Positive (high) supply Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 5 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 OUT1 1 14 OUT4 IN1± 2 13 IN4± IN1+ 3 12 IN4+ V+ 4 11 V± IN2+ 5 10 IN3+ IN2± 6 9 IN3± OUT2 7 8 OUT3 Not to scale Figure 6-9. TLV9044 D, PW and DYY Packages 14-Pin SOIC, TSSOP and SOT-23 Top View Table 6-5. Pin Functions: TLV9044 PIN NAME 6 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 IN3– 9 I Inverting input, channel 3 IN3+ 10 I Noninverting input, channel 3 IN4– 13 I Inverting input, channel 4 IN4+ 12 I Noninverting input, channel 4 NC — — No internal connection OUT1 1 O Output, channel 1 OUT2 7 O Output, channel 2 OUT3 8 O Output, channel 3 OUT4 14 O Output, channel 4 V– 11 I or — V+ 4 I Negative (low) supply or ground (for single-supply operation) Positive (high) supply Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 7 Specifications 7.1 Absolute Maximum Ratings over operating ambient temperature range (unless otherwise noted) (1) MIN MAX 0 6.0 V (V–) – 0.5 (V+) + 0.5 V Supply voltage, VS = (V+) – (V–) Common-mode voltage (2) Differential voltage (2) Signal input pins VS + 0.2 Current (2) –10 Output short-circuit (3) –55 Junction temperature, TJ Storage temperature, Tstg (2) (3) V 10 mA 150 °C 150 °C 150 °C Continuous Operating ambient temperature, TA (1) UNIT –65 Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 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. Short-circuit to ground, one amplifier per package. 7.2 ESD Ratings VALUE V(ESD) (1) (2) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001 (1) ±3000 Charged-device model (CDM), per JEDEC specification JESD22-C101 (2) ±1500 UNIT V 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 1.2 5.5 Input voltage range (V–) (V+) V Specified temperature –40 125 °C VS Supply voltage, (V+) – (V–) VI TA UNIT V 7.4 Thermal Information for Single Channel TLV9041, TLV9041S THERMAL METRIC DBV (SOT-23) (1) DCK (SC70) DPW (X2SON) UNIT 5 PINS 6 PINS 5 PINS 5 PINS RθJA Junction-to-ambient thermal resistance 235.4 214.6 233.8 478.7 °C/W RθJC(top) Junction-to-case (top) thermal resistance 135.1 134.2 130.7 219.4 °C/W RθJB Junction-to-board thermal resistance 103.2 95.6 79.7 345.1 °C/W ψJT Junction-to-top characterization parameter 75.6 73.8 51.6 32.9 °C/W ψJB Junction-to-board characterization parameter 102.7 95.3 79.1 343.4 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance n/a n/a n/a 192.7 °C/W (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 7 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 7.5 Thermal Information for Dual Channel TLV9042 THERMAL METRIC (1) TLV9042S D (SOIC) DDF (SOT-23-8) DSG (WSON) PW (TSSOP) DGK (VSSOP) RUG (X2QFN) 8 PINS 8 PINS 8 PINS 8 PINS 8 PINS 10 PINS UNIT RθJA Junction-to-ambient thermal resistance 148.3 203.8 99.8 203.1 196.6 196.9 °C/W RθJC(top) Junction-to-case (top) thermal resistance 89.8 123.9 122.2 91.9 87.5 87.6 °C/W RθJB Junction-to-board thermal resistance 91.6 121.6 66.0 133.8 118.5 117.8 °C/W ψJT Junction-to-top characterization parameter 38.6 21.7 13.8 23.7 25.7 3.4 °C/W ψJB Junction-to-board characterization parameter 90.9 199.6 65.9 132.1 116.8 117.6 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance n/a n/a 41.9 n/a n/a n/a °C/W (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. 7.6 Thermal Information for Quad Channel TLV9044, TLV9044S THERMAL METRIC D (SOIC) PW (TSSOP) DYY (SOT-23-14) UNIT 14 PINS 14 PINS 14 PINS RθJA Junction-to-ambient thermal resistance 116.4 135.7 152.5 °C/W RθJC(top) Junction-to-case (top) thermal resistance 72.5 78.8 86.2 °C/W RθJB Junction-to-board thermal resistance 72.4 63.9 67.4 °C/W ψJT Junction-to-top characterization parameter 30.8 14.2 10.1 °C/W ψJB Junction-to-board characterization parameter 72 78.3 67.2 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance n/a n/a n/a °C/W (1) 8 (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 7.7 Electrical Characteristics For VS = (V+) – (V–) = 1.2 V to 5.5 V (±0.6 V to ±2.75 V) at TA = 25°C, RL = 100 kΩ connected to VS / 2, VCM = VS / 2, and VO UT = VS / 2, unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX ±0.6 ±2.25 UNIT OFFSET VOLTAGE VOS Input offset voltage dVOS/dT Input offset voltage drift PSRR Input offset voltage versus power supply VS = ±0.6 V to ±2.75 V , VCM = V– ±20 Channel separation f = 10 kHz ±5.6 TA = –40°C to 125°C ±2.5 TA = –40°C to 125°C ±0.8 mV µV/℃ ±100 µV/V µV/V INPUT BIAS CURRENT IB Input bias current (1) IOS Input offset current (1) ±1 ±12 pA ±0.5 ±10 pA NOISE EN eN iN Input voltage noise Input voltage noise density Input current noise (2) f = 0.1 to 10 Hz 6.5 f = 100 Hz 85 f = 1 kHz 66 f = 10 kHz 64 f = 1 kHz 20 μVPP nV/√Hz fA/√Hz INPUT VOLTAGE RANGE VCM CMRR Common-mode voltage range Common-mode rejection ratio (V–) (V+) (V–) < VCM < (V+) – 0.7 V, VS = 1.2 V 60 77 (V–) < VCM < (V+) – 0.7 V, VS = 5.5 V 75 89 (V–) < VCM < (V+), VS = 1.2 V TA = –40°C to 125°C (V–) < VCM < (V+), VS = 5.5 V 60 57 V dB 72 INPUT IMPEDANCE ZID Differential ZICM Common-mode 80 || 1.4 GΩ || pF 100 || 0.5 GΩ || pF OPEN-LOOP GAIN VS = 1.2 V, (V–) + 0.2 V < VO < (V+) – 0.2 V, RL = 10 kΩ to VS / 2 AOL Open-loop voltage gain VS = 5.5 V, (V–) + 0.2 V < VO < (V+) – 0.2 V, RL = 10 kΩ to VS / 2 VS = 1.2 V, (V–) + 0.1 V < VO < (V+) – 0.1 V, RL = 100 kΩ to VS / 2 98 125 TA = –40°C to 125°C VS = 5.5 V, (V–) + 0.1 V < VO < (V+) – 0.1 V, RL = 100 kΩ to VS / 2 dB 105 107 130 FREQUENCY RESPONSE THD+N Total harmonic distortion + noise (3) VS = 5.5 V, VCM = 2.75 V, VO = 1 VRMS, G = +1, f = 1 kHz, RL = 100 kΩ to VS / 2 GBW Gain-bandwidth product RL = 1 MΩ connected to VS/2 350 kHz SR Slew rate VS = 5.5 V, G = +1, CL = 10 pF 0.2 V/μs To 0.1%, VS = 5.5 V, VSTEP = 4 V, G = +1, CL = 10 pF 25 To 0.1%, VS = 5.5 V, VSTEP = 2 V, G = +1, CL = 10 pF 22 To 0.01%, VS = 5.5 V, VSTEP = 4 V, G = +1, CL = 10 pF 35 tS Settling time 0.013 % μs To 0.01%, VS = 5.5 V, VSTEP = 2 V, G = +1, CL = 10 pF 30 Phase margin G = +1, RL = 100 kΩ connected to VS/2, CL = 10 pF 65 ° Overload recovery time VIN × gain > VS 13 μs Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 9 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 7.7 Electrical Characteristics (continued) For VS = (V+) – (V–) = 1.2 V to 5.5 V (±0.6 V to ±2.75 V) at TA = 25°C, RL = 100 kΩ connected to VS / 2, VCM = VS / 2, and VO UT = VS / 2, unless otherwise noted. PARAMETER EMIRR TEST CONDITIONS Electro-magnetic interference rejection ratio MIN f = 1 GHz, VIN_EMIRR = 100 mV TYP MAX 70 UNIT dB OUTPUT VS = 1.2 V, RL = 100 kΩ to VS / 2 Positive rail headroom Voltage output swing from rail Negative rail headroom ISC Short-circuit current ZO Open-loop output impedance (4) 0.75 7 VS = 5.5 V, RL = 10 kΩ to VS / 2 10 21 VS = 5.5 V, RL = 100 kΩ to VS / 2 1 8 VS = 1.2 V, RL = 100 kΩ to VS / 2 0.75 5 VS = 5.5 V, RL = 10 kΩ to VS / 2 10 21 VS = 5.5 V, RL = 100 kΩ to VS / 2 1 8 mV VS = 5.5 V ±40 mA f = 10 kHz 7500 Ω POWER SUPPLY IQ Quiescent current per amplifier VS = 5.5 V, IO = 0 A IQ Quiescent current per amplifier VS = 5.5 V, IO = 0 A, For TLV9041UIDBVR Only 10 TA = –40°C to 125°C 13 13.5 10 TA = –40°C to 125°C µA 13.5 µA 14 µA 200 nA 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 (2) (3) (4) (5) (6) 10 V (V–) + 0.2 V 160 Amplifier enable time (partial shutdown) G = +1, VCM = VS / 2, VO = 0.9 × VS / 2, RL connected to V– 120 G = +1, VCM = VS / 2, VO = 0.1 × VS / 2, RL connected to V– 10 Amplifier disable time (5) GΩ || pF (V–) + 1 V G = +1, VCM = VS / 2, VO = 0.9 × VS / 2, RL connected to V– SHDN pin input bias current (per pin) (1) 43 || 11.5 Amplifier enable time (full shutdown) (5) (6) (5) (6) tOFF 75 V µs (V+) ≥ SHDN ≥ (V–) + 1 V (V–) ≤ SHDN ≤ (V–) + 0.2 V 100 50 µs pA Max IB and IOS limits are specified based on characterization results. Input differential voltages greater than 2.5V can cause increased IB Typical input current noise data is specified based on design simulation results Third-order filter; bandwidth = 80 kHz at –3 dB. Short circuit current is average of sourcing and sinking short circuit currents 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. Full shutdown refers to the dual TLV9042S having both channels 1 and 2 disabled (SHDN1 = SHDN2 = V–) and the quad TLV9044S having all channels 1 to 4 disabled (SHDN12 = SHDN34 = V–). For partial shutdown, only one SHDN pin is exercised; in this mode, the internal biasing circuitry remains operational and the enable time is shorter. Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 7.8 Typical Characteristics 45 20 40 18 35 16 14 30 Population (%) Population (%) at TA = 25°C, V+ = 2.75 V, V– = –2.75 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2 (unless otherwise noted) 25 20 15 12 10 8 6 10 4 5 2 0 0 -2 -1.6 -1.2 -0.8 -0.4 0 0.4 0.8 1.2 1.6 2 Offset Voltage (mV) 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 Offset Voltage Drift (µV/°C) D01_ VS = 5.5 V D04_ VS = 5.5 V, TA = –40°C to +125°C Figure 7-1. Offset Voltage Distribution Histogram Figure 7-2. Offset Voltage Drift Distribution Histogram 1600 2000 1200 1600 1200 800 VOS (µV) VOS (µV) 800 400 0 -400 400 0 -400 -800 -800 -1200 -1200 -1600 -1600 -40 -20 0 20 40 60 80 Temperature (°C) 100 120 -2000 -40 140 -20 0 VS = 5.5 V, VCM = V– 2000 1600 1600 1200 1200 800 800 400 400 VOS (µV) VOS (µV) 100 120 140 D05_ Figure 7-4. Input Offset Voltage vs Temperature 2000 0 -400 0 -400 -800 -800 -1200 -1200 -1600 -1600 -2000 -2000 1.25 1 40 60 80 Temperature (°C) VS = 5.5 V, VCM = V+ Figure 7-3. Input Offset Voltage vs Temperature -3 -2.5 -2 -1.5 -1 -0.5 0 0.5 VCM (V) 20 D06_ 1.5 2 2.5 3 1.5 D07_ 1.75 2 2.25 VCM (V) 2.5 2.75 3 D09_ VCM > (V+) – 1.4 V Figure 7-5. Offset Voltage vs Common-Mode Figure 7-6. Offset Voltage vs Common-Mode Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 11 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 7.8 Typical Characteristics (continued) at TA = 25°C, V+ = 2.75 V, V– = –2.75 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2 (unless otherwise noted) Input Bias Current and Offset Current (pA) 1200 800 VOS (µV) 400 0 -400 -800 -1200 1 1.5 2 2.5 3 3.5 4 4.5 Supply Voltage (V) 5 5.5 6 D51_ 24 IBIB+ IOS 22 20 18 16 14 12 10 8 6 4 2 0 -40 -20 0 20 40 60 80 Temperature (°C) 100 120 140 D14_ VCM = (V–) Figure 7-8. IB and IOS vs Temperature 1.8 150 1.2 140 0.6 130 Open-Loop Gain (dB) Input Bias Current and Offset Current (pA) Figure 7-7. Offset Voltage vs Supply Voltage 0 -0.6 -1.2 -1.8 -2.4 2 2.5 100 90 80 50 -40 3 80 45 60 30 40 15 20 0 0 -20 -40 Gain Phase -60 10k 100k Frequency (Hz) 1M D16_ Open-loop output impedance (ohms) 60 -15 40 60 80 Temperature (°C) 100 120 140 D18_ 8000 7000 6000 5000 4000 3000 2000 1000 0 100 1k CL = 10 pF Figure 7-11. Open-Loop Gain and Phase vs Frequency 12 20 9000 Phase ( o ) Gain (dB) 100 1k 0 Figure 7-10. Open-Loop Gain vs Temperature 75 -45 100 -20 D13_ Figure 7-9. IB and IOS vs Common-Mode Voltage -30 VS = 5.5 V, RL = 100K: VS = 1.2 V, RL = 100K: VS = 1.2 V, RL = 10K: VS = 5.5 V, RL = 10K: 60 -3.6 -3 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 Common-Mode Voltage (V) 110 70 IBIB+ IOS -3 120 10k 100k Frequency (Hz) 1M 10M D41_ Figure 7-12. Open-Loop Output Impedance vs Frequency Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 7.8 Typical Characteristics (continued) 160 150 140 130 120 110 100 90 80 -40oC 70 25oC 60 125oC 50 40 30 20 10 0 -3 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 Output Voltage (V) 30 20 10 0 Gain (dB) Open-Loop Gain (dB) at TA = 25°C, V+ = 2.75 V, V– = –2.75 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2 (unless otherwise noted) -10 -20 -30 -40 -50 G = -1 G=1 G = 10 -60 1.5 2 2.5 -70 10k 3 100k Frequency (Hz) D19_ V+ = 2.75 V, V– = –2.75 V RL = 10 kΩ 1M D17_ CL = 10 pF Figure 7-13. Open-Loop Gain vs Output Voltage Figure 7-14. Closed-Loop Gain vs Frequency 3 0.75 2.5 2 0.5 1.5 0.25 -40oC 25oC 85oC 125oC 0 -0.5 Vo (V) Vo (V) 1 0.5 -1 -40oC 25oC 85oC 125oC 0 -0.25 -1.5 -2 -0.5 -2.5 -3 -0.75 0 5 10 15 20 25 30 35 Iout (mA) 40 45 50 55 60 0 0.25 0.5 V+ = 2.75 V, V– = –2.75 V 1.5 1.75 2 D34_ Figure 7-16. Output Voltage vs Output Current (Claw) 40 80 Power-Supply Rejection Ratio (µV/V) PSRR+ PSRR- 72 64 56 PSRR (dB) 1 1.25 Iout (mA) V+ = 0.6 V, V– = –0.6 V Figure 7-15. Output Voltage vs Output Current (Claw) 48 40 32 24 16 8 0 100 0.75 D32_ 1k 10k 100k Frequency (Hz) 36 32 28 24 20 16 12 8 4 0 -40 1M -20 0 D10_ 20 40 60 80 Temperature (°C) 100 120 140 D11_ VS = 1.2 V to 5.5 V Figure 7-17. PSRR vs Frequency Figure 7-18. DC PSRR vs Temperature Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 13 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 7.8 Typical Characteristics (continued) at TA = 25°C, V+ = 2.75 V, V– = –2.75 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2 (unless otherwise noted) 95 100 Common-Mode Rejection Ratio (dB) CMRR 90 80 CMRR (dB) 70 60 50 40 30 20 10 0 100 1k 10k 100k Frequency (Hz) 1M 90 85 80 75 VS = 5.5 V;VCM = 0 V to 4.7 V VS = 3.3 V;VCM = 0 V to 2.6 V VS = 1.8 V;VCM = 0 V to 1.1 V VS = 1.2 V;VCM = 0 V to 0.5 V 70 65 -40 10M -20 Figure 7-19. CMRR vs Frequency 20 Voltage noise spectral density (nV/rtHz) 2 1 0 -1 -2 -3 120 140 D12_ 180 160 140 120 100 80 60 40 20 0 10 -4 Time (1s/div) 100 D011 10k D15_ 0 0 -10 1k Frequency (Hz) Figure 7-22. Input Voltage Noise Spectral Density Figure 7-21. 0.1 Hz to 10 Hz Voltage Noise in Time Domain RL = 10 k: RL = 100 k: -10 -20 -20 -30 -30 -40 -40 THD+N (dB) THD+N (dB) 100 200 3 -50 -60 -70 RL = 10 k: RL = 100 k: -50 -60 -70 -80 -80 -90 -90 -100 -100 -110 -110 100 VS = 5.5 V BW = 80 kHz 1k Frequency (Hz) 100 10k D30_ VCM = 2.5 V VOUT = 0.5 VRMS Figure 7-23. THD + N vs Frequency 14 40 60 80 Temperature (°C) Figure 7-20. DC CMRR vs Temperature 4 Amplitude (1 uV/div) 0 D010 G=1 VS = 5.5 V BW = 80 kHz 1k Frequency (Hz) VCM = 2.5 V VOUT = 0.5 VRMS 10k D30_ G = –1 Figure 7-24. THD + N vs Frequency Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 7.8 Typical Characteristics (continued) at TA = 25°C, V+ = 2.75 V, V– = –2.75 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2 (unless otherwise noted) 0 0 RL = 10 k: RL = 100 k: -20 -20 -30 -30 -40 -50 -40 -50 -60 -60 -70 -70 -80 -80 -90 1m 10m VS = 5.5 V G=1 100m Amplitude(Vrms) RL = 10 k: RL = 100 k: -10 THD+N (dB) THD+N (dB) -10 -90 1m 1 VCM = 2.5 V BW = 80 kHz f = 1 kHz VS = 5.5 V G = –1 Figure 7-25. THD + N vs Amplitude 11 11 10.5 10.5 1 D31_ VCM = 2.5 V BW = 80 kHz f = 1 kHz VS = 5.5 V VS = 1.2 V 10 Quiescent Current (µA) Quiescent Current (µA) 100m Amplitude(Vrms) Figure 7-26. THD + N vs Amplitude 10 9.5 9 8.5 8 7.5 7 9.5 9 8.5 8 7.5 7 6.5 6.5 6 1 1.5 2 2.5 3 3.5 4 4.5 Supply Voltage (V) 5 5.5 6 -40 6 -20 0 D38_ Figure 7-27. Quiescent Current vs Supply Voltage 20 40 60 80 Temperature (°C) 100 120 140 D40_ Figure 7-28. Quiescent Current vs Temperature 70 70 RISO = 0: , Overshoot (+) RISO = 0: ,Overshoot (-) RISO = 50: , Overshoot (+) RISO = 50: ,Overshoot (-) 60 RISO = 0: , Overshoot (+) RISO = 0: ,Overshoot (-) RISO = 50: , Overshoot (+) RISO = 50: ,Overshoot (-) 60 50 Overshoot (%) 50 Overshoot (%) 10m D31_ 40 30 40 30 20 20 10 10 0 0 0 80 G=1 160 240 320 400 Capacitive Load (pF) 480 560 0 80 160 D23_ VIN = 100 mVpp Figure 7-29. Small Signal Overshoot vs Capacitive Load G = –1 240 320 400 Capacitive Load (pF) 480 560 D24_ VIN = 100 mVpp Figure 7-30. Small Signal Overshoot vs Capacitive Load Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 15 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 7.8 Typical Characteristics (continued) 72 3 68 2.4 64 1.8 VIN VOUT 1.2 60 Amplitude (V) Phase Margin (°) at TA = 25°C, V+ = 2.75 V, V– = –2.75 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2 (unless otherwise noted) 56 52 48 0.6 0 -0.6 -1.2 44 -1.8 40 -2.4 36 10 -3 30 50 70 90 110 Capacitive Load (pF) 130 150 Time (25 µs/div) D005 D21_ G=1 Figure 7-31. Phase Margin vs Capacitive Load VIN = 6 VPP Figure 7-32. No Phase Reversal 12.5 3 VIN VOUT 10 7.5 1 0 -1 -2 5 Amplitude (mV) Amplitude (V) 2 2.5 0 -2.5 -5 -7.5 VIN VOUT -10 -3 -12.5 Time (100 µs/div) Time (10 µs/div) D22_ G = –10 D25_ VIN = 600 mVPP G=1 Figure 7-33. Overload Recovery VIN VOUT 1.5 Amplitude (V) 1 0.5 0 -0.5 -1 -1.5 -2 -2.5 Time (5 µs/div) Time (10 µs/div) D29_ D27_ G=1 VIN = 4 VPP CL = 10 pF Figure 7-35. Large-Signal Step Response 16 CL = 10 pF Output Delta from Final Value (10 mV/div) 2.5 2 VIN = 20 mVPP Figure 7-34. Small-Signal Step Response G=1 VIN = 4 VPP CL = 10 pF Figure 7-36. Large-Signal Settling Time (Negative) Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 7.8 Typical Characteristics (continued) at TA = 25°C, V+ = 2.75 V, V– = –2.75 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2 (unless otherwise noted) Output Delta from Final Value (10 mV/div) 2.5 2 1.5 VIN VOUT Amplitude (V) 1 0.5 0 -0.5 -1 -1.5 -2 -2.5 Time (10 µs/div) Time (5 µs/div) D28_ D29_ G=1 VIN = 4 VPP G = –1 CL = 10 pF 80 6 Vs = 5.5 V Vs = 1.2 V 5.4 Sinking Sourcing 60 4.8 40 4.2 20 3.6 Isc (mA) Maximum Output Voltage (V) CL = 10 pF Figure 7-38. Large-Signal Step Response Figure 7-37. Large-Signal Settling Time (Positive) 3 2.4 0 -20 1.8 -40 1.2 -60 0.6 -80 -40 0 1 10 100 1k 10k 100k Frequency (Hz) 1M 10M 100M -20 0 20 D36_ Figure 7-39. Maximum Output Voltage vs Frequency 40 60 80 Temperature (°C) 100 120 140 D37_ Figure 7-40. Short-Circuit Current vs Temperature 140 100 SHDN Quiescent Current (nA) 90 SHDN Quiescent Current (nA) VIN = 4 VPP 80 70 60 50 40 30 20 10 0 1 1.5 2 2.5 3 3.5 4 4.5 Supply Voltage (V) 5 5.5 6 120 Vs = 5.5 V Vs = 1.2 V 100 80 60 40 20 0 -40 -20 0 D44_ Figure 7-41. Shutdown Mode Quiescent Current vs Supply Voltage 20 40 60 80 Temperature (°C) 100 120 140 D45_ Figure 7-42. Shutdown Mode Quiescent Current vs Temperature Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 17 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 7.8 Typical Characteristics (continued) at TA = 25°C, V+ = 2.75 V, V– = –2.75 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2 (unless otherwise noted) 1 1 VOUT (V) SHDN (V) 0.5 0 Amplitude (V) 0 Amplitude (V) VOUT (V) SHDN (V) 0.5 -0.5 -1 -1.5 -0.5 -1 -1.5 -2 -2 -2.5 -2.5 -3 -3 Time (20 µs/div) Time (20 µs/div) D49_ D48_ Figure 7-43. Amplifier Enable Response Figure 7-44. Amplifier Disable Response 100 0 90 -20 80 -40 Crosstalk (dB) EMIRR (dB) 70 60 50 40 30 -60 -80 -100 20 -120 10 0 1M 10M 100M Frequency (Hz) -140 100 1G Figure 7-45. Electromagnetic Interference Rejection Ratio Referred to Noninverting Input (EMIRR+) vs Frequency 18 1k D42_ 10k 100k Frequency (Hz) 1M 10M D50_ Figure 7-46. Channel Separation Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 8 Detailed Description 8.1 Overview The TLV904x is a family of low-power, rail-to-rail input and output operational amplifiers specifically designed for battery powered applications. This family of amplifiers utilizes unique transistors that enable operation from ultra low supply voltage of 1.2 V to a standard supply voltage of 5.5 V. These unity-gain stable amplifiers provide 350 kHz of GBW with an IQ of only 10 µA. TLV904x also has short circuit current capability of 40 mA at 5.5 V. This combination of low voltage, low IQ, and high output current capability makes this device quite unique and suitable for suitable for a wide range of general-purpose applications. The input common-mode voltage range includes both rails, and allows the TLV904x series to be used in many single-supply or dual supply configurations. Rail-to-rail input and output swing significantly increases dynamic range, especially in low-supply applications, and makes these devices ideal for driving low speed sampling analog-to-digital converters (ADCs). Further, the class AB output stage is capable of driving resitive loads greater than 2-kΩ connected to any point between V+ and ground. The TLV904x can drive up to 100 pF with a typical phase margin of 45° and features 350-kHz gain bandwidth product, 0.2-V/μs slew rate with 6.5-μVp-p integrated noise (0.1 to 10 Hz) while consuming only 10-μA supply current per channel, thus providing a good AC performance at a very low power consumption. DC applications are also well served with a low input bias current of 1 pA (typical), an input offset voltage of 0.6 mV (typical) and a good PSRR, CMRR, and AOL. 8.2 Functional Block Diagram V+ Reference Current VIN+ VINVBIAS1 Class AB Control Circuitry VO VBIAS2 V(Ground) Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 19 TLV9041, TLV9042, TLV9044 SBOS836G – MARCH 2020 – REVISED MARCH 2022 www.ti.com 8.3 Feature Description 8.3.1 Operating Voltage The TLV904x series of operational amplifiers is fully specified and ensured for operation from 1.2 V to 5.5 V. In addition, many specifications apply from –40°C to 125°C. Parameters that vary significantly with operating voltages or temperature are provided in Section 7.8. It is highly recommended to bypass power-supply pins with at least 0.01-μF ceramic capacitors. 8.3.2 Rail-to-Rail Input The input common-mode voltage range of the TLV904x series extends to either supply rails. This is true even when operating at the ultra-low supply voltage of 1.2 V, all the way up to the standard supply voltage of 5.5 V. This performance is achieved with a complementary input stage: an N-channel input differential pair in parallel with a P-channel differential pair. Refer to Section 8.2 for more details. For most amplifiers with a complementary input stage, one of the input pairs, usually the P-channel input pair, is designed to deliver slightly better performance in terms of input offset voltage, offset drift over the N-channel pair. Consequently, the P-channel pair is designed to cover the majority of the common mode range with the N-channel pair slated to slowly take over at a certain threshold voltage from the positive rail. Just after the threshold voltage, both the input pairs are in operation for a small range referred to as the transition region. Beyond this region, the N-channel pair completely takes over. Within the transition region, PSRR, CMRR, offset voltage, offset drift, and THD can be degraded compared to device operation outside this region. Hence, most applications generally prefer operating in the P-channel input range where the performance is slightly better. For the TLV904x, the P-channel pair is typically active for input voltages from the negative rail to (V+) – 0.4 V and the N-channel pair is typically active for input voltages from the positive supply to (V+) – 0.4 V. The transition region occurs typically from (V+) – 0.5 V to (V+) – 0.3 V, in which both pairs are on. These voltage levels mentioned above can vary with process variations associated with threshold voltage of transistors. In the TLV904x, 200-mV transition region mentioned above can vary up to 200 mV in either direction. Thus, the transition region (both stages on) can range from (V+) – 0.7 V to (V+) – 0.5 V on the low end, up to (V+) – 0.3 V to (V+) – 0.1 V on the high end. Recollecting the fact that a P-channel input pair usually offers better performance over a N-channel input pair, the TLV904x is designed to offer a much wider P-channel input pair range, in comparison to most complimentary input amplifiers in the industry. A side by side comparison of the TLV904x and the TLV900x is provided below. Note, that the TLV900x guarantees P-channel pair operation only until 1.4 V from the positive rail while the TLV904x guarantees P-channel pair operation all the way till 0.7 V from the positive rail. This additional 700mV of P-channel input pair range for the TLV904x is particularly useful when operating at lower supply voltages (1.2 V, 1.8 V etc) where the P-channel input range usually gets limited to a great extent. Thus the wide common mode swing of input signal can be accommodated more easily within the P-channel input pair of the TLV904x, while likely avoiding the transition region, thereby maintaining linearity. 20 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 2000 2000 1600 1500 1200 1000 Offset Voltage (μV) VOS (µV) 800 400 0 -400 -800 500 0 -500 -1000 -1200 -1500 -1600 -2000 -3 -2.5 -2 -1.5 -1 -0.5 0 0.5 VCM (V) 1 1.5 2 2.5 3 -2000 -4 -3 -2 D07_ V+ = 2.75 V, V– = –2.75 V Figure 8-1. TLV904x Offset Voltage vs CommonMode -1 0 1 2 Common-Mode Voltage (V) 3 4 D004 V+ = 2.75 V, V– = –2.75 V Figure 8-2. TLV900x Offset Voltage vs CommonMode 8.3.3 Rail-to-Rail Output Designed as a micro-power, low-noise operational amplifier, the TLV904x delivers a robust output drive capability. A class AB output stage with common-source transistors is used to achieve full rail-to-rail output swing capability. For resistive loads up to 5 kΩ, the output typically swings to within 20 mV of either supply rail regardless of the power-supply voltage applied. Different load conditions change the ability of the amplifier to swing close to the rails. 8.3.4 Common-Mode Rejection Ratio (CMRR) The CMRR for the TLV904x is specified in several ways so the best match for a given application can be used; see the Electrical Characteristics table. First, the CMRR of the device in the common-mode range below the transition region [VCM < (V+) – 0.7 V] is given. This specification is the best indicator of the capability of the device when the application requires using one of the differential input pairs. Second, the CMRR over the entire common-mode range is specified at (VCM = 0 V to 5.5 V). This last value includes the variations measured through the transition region. 8.3.5 Capacitive Load and Stability The TLV904x is designed to be used in applications where driving a capacitive load is required. As with all operational amplifiers, there may be specific instances where the TLV904x can become unstable. The particular operational amplifier circuit configuration, layout, gain, and output loading are some of the factors to consider when establishing whether or not an amplifier is stable in operation. An operational amplifier in the unity-gain (1 V/V) buffer configuration that drives a capacitive load exhibits a greater tendency to be unstable than an amplifier operated at a higher noise gain. The capacitive load, in conjunction with the operational amplifier output resistance, creates a pole within the feedback loop that degrades the phase margin. The degradation of the phase margin increases when capacitive loading increases. When operating in the unity-gain configuration, the TLV904x remains stable with a pure capacitive load up to approximately 100 pF with a good phase margin of 45° typical. The equivalent series resistance (ESR) of some very large capacitors (CL greater than 1 μF) is sufficient to alter the phase characteristics in the feedback loop such that the amplifier remains stable. Increasing the amplifier closed-loop gain allows the amplifier to drive increasingly larger capacitance. This increased capability is evident when measuring the overshoot response of the amplifier at higher voltage gains. One technique for increasing the capacitive load drive capability of the amplifier operating in a unity-gain configuration is to insert a small resistor (typically 10 Ω to 20 Ω) in series with the output, as shown in Figure 8-3. This resistor significantly reduces the overshoot and ringing associated with large capacitive loads. One possible problem with this technique, however, is that a voltage divider is created with the added series resistor and any resistor connected in parallel with the capacitive load. The voltage divider introduces a gain error at the output that reduces the output swing. Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 21 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 +Vs Vout Riso + Vin Cload + ± -Vs Figure 8-3. Improving Capacitive Load Drive 8.3.6 Overload Recovery Overload recovery is defined as the time required for the operational amplifier output to recover from a saturated state to a linear state. The output devices of the operational amplifier enter a saturation region when the output voltage exceeds the rated operating voltage, because of the high input voltage or high gain. Once one of the output devices enters the saturation region, the output stage requires additional time to return to the linear operating state which is referred to as overload recovery time. After the output stage returns to its linear operating state, the amplifier begins to slew at the specified slew rate. Therefore, the propagation delay (in case of an overload condition) is the sum of the overload recovery time and the slew time. The overload recovery time for the TLV904x family is approximately 13-µs typical. 8.3.7 EMI Rejection The TLV904x 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 TLV904x 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 8-4 shows the results of this testing on the TLV904x. Table 8-1 shows the EMIRR IN+ values for the TLV904x 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. 100 90 80 EMIRR (dB) 70 60 50 40 30 20 10 0 1M 10M 100M Frequency (Hz) 1G D42_ Figure 8-4. EMIRR Testing Table 8-1. TLV904x EMIRR IN+ for Frequencies of Interest FREQUENCY 22 APPLICATION OR ALLOCATION EMIRR IN+ 400 MHz Mobile radio, mobile satellite, space operation, weather, radar, ultra-high frequency (UHF) applications 60 dB 900 MHz Global system for mobile communications (GSM) applications, radio communication, navigation, GPS (to 1.6 GHz), GSM, aeronautical mobile, UHF applications 70 dB Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 Table 8-1. TLV904x EMIRR IN+ for Frequencies of Interest (continued) FREQUENCY APPLICATION OR ALLOCATION EMIRR IN+ 1.8 GHz GSM applications, mobile personal communications, broadband, satellite, L-band (1 GHz to 2 GHz) 75 dB Bluetooth®, 2.4 GHz 802.11b, 802.11g, 802.11n, mobile personal communications, industrial, scientific and medical (ISM) radio band, amateur radio and satellite, S-band (2 GHz to 4 GHz) 3.6 GHz Radiolocation, aero communication and navigation, satellite, mobile, S-band 82 dB 802.11a, 802.11n, aero communication and navigation, mobile communication, space and satellite operation, C-band (4 GHz to 8 GHz) 85 dB 5 GHz 79.0 dB 8.3.8 Electrical Overstress Designers often ask questions about the capability of an operational amplifier to withstand electrical overstress. These questions tend to focus on the device inputs, but can 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 8-5 shows the ESD circuits contained in the TLV904x devices. 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 they meet at an absorption device internal to the operational amplifier. This protection circuitry is intended to remain inactive during normal circuit operation. V+ Power Supply ESD Cell +IN + ± ± IN OUT V± Figure 8-5. Equivalent Internal ESD Circuitry 8.3.9 Input and ESD Protection The TLV904x family incorporates internal ESD protection circuits on all pins. For input and output pins, this protection primarily consists of current-steering diodes connected between the input and power-supply pins. These ESD protection diodes provide in-circuit, input overdrive protection, as long as the current is limited to 10 mA. Figure 8-6 shows how a series input resistor can be added to the driven input to limit the input current. The added resistor contributes thermal noise at the amplifier input and the value must be kept to a minimum in noise-sensitive applications. Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 23 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 V+ IOVERLOAD 10-mA maximum Device VOUT VIN 5 kW Figure 8-6. Input Current Protection 8.3.10 Shutdown Function The TLV904xS 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 150 nA. 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 500 mV (typical) and does not change with respect to the supply voltage. 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 V and V+. To enable the amplifier, the SHDN pins must be driven to a valid logic high. To disable the amplifier, the SHDN pins must be driven to a valid logic low. We highly recommend that the shutdown pin be connected to a valid high or a low voltage or driven. The maximum voltage allowed at the SHDN pins is (V+) + 0.5 V. Exceeding this voltage level will damage the device. 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 160 µs for full shutdown of all channels; disable time is 10 µs. When disabled, the output assumes a high-impedance state. This architecture allows the TLV904xS 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 100-kΩ load to midsupply (VS / 2) is required. If using the TLV904xS without a load, the resulting turnoff time is significantly increased. 8.3.11 Packages With an Exposed Thermal Pad The TLV904x family is available in packages such as the WQFN-16 (RTE) 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 then V– is not allowed, and the performance of the device is not assured when doing so. 8.4 Device Functional Modes The TLV904x devices have a single functional mode. These devices are powered on as long as the powersupply voltage is between 1.2 V (±0.6 V) and 5.5 V (±2.75 V). The TLV904xS devices feature a shutdown pin, which can be used to place the op amp into a low-power mode. See Section 8.3.10 for more information. 24 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 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, as well as validating and testing their design implementation to confirm system functionality. 9.1 Application Information The TLV904x family of low-power, rail-to-rail input and output operational amplifiers is specifically designed for portable applications. The devices operate from 1.2 V to 5.5 V, are unity-gain stable, and are suitable for a wide range of general-purpose applications. The class AB output stage is capable of driving resitive loads greater than 2-kΩ connected to any point between V+ and V–. The input common-mode voltage range includes both rails and allows the TLV904x series to be used in many single-supply or dual supply configurations. 9.2 Typical Application 9.2.1 TLV904x Low-Side, Current Sensing Application Figure 9-1 shows the TLV904x configured in a low-side current sensing application. VBUS ILOAD ZLOAD 5V + Device RSHUNT 0.1 Ÿ VSHUNT í VOUT í + RF 57.6 NŸ RG 1.2 NŸ Figure 9-1. TLV904x in a Low-Side, Current-Sensing Application Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 25 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 9.2.1.1 Design Requirements The design requirements for this design are: • Load current: 0 A to 1 A • Maximum output voltage: 4.9 V • Maximum shunt voltage: 100 mV 9.2.1.2 Detailed Design Procedure The transfer function of the circuit in Figure 9-1 is given in Equation 1. VOUT ILOAD u RSHUNT u Gain (1) The load current (ILOAD) produces a voltage drop across the shunt resistor (RSHUNT). The load current is set from 0 A to 1 A. To keep the shunt voltage below 100 mV at maximum load current, the largest shunt resistor is shown using Equation 2. RSHUNT VSHUNT _ MAX ILOAD _ MAX 100mV 1A 100m: (2) Using Equation 2, RSHUNT is calculated to be 100 mΩ. The voltage drop produced by ILOAD and RSHUNT is amplified by the TLV904x to produce an output voltage of approximately 0 V to 4.9 V. The gain needed by the TLV904x to produce the necessary output voltage is calculated using Equation 3. Gain VOUT _ MAX VIN _ MAX VOUT _ MIN VIN _ MIN (3) Using Equation 3, the required gain is calculated to be 49 V/V, which is set with resistors RF and RG. Equation 4 sizes the resistors RF and RG, to set the gain of the TLV904x to 49 V/V. Gain 1 RF RG (4) Selecting RF as 57.6 kΩ and RG as 1.2 kΩ provides a combination that equals 49 V/V. Figure 9-2 shows the measured transfer function of the circuit shown in Figure 9-1. Notice that the gain is only a function of the feedback and gain resistors. This gain is adjusted by varying the ratio of the resistors and the actual resistors values are determined by the impedance levels that the designer wants to establish. The impedance level determines the current drain, the effect that stray capacitance has, and a few other behaviors. There is no optimal impedance selection that works for every system; you must choose an impedance that is ideal for your system parameters. 26 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 9.2.1.3 Application Curve 5 Output (V) 4 3 2 1 0 0 0.2 0.4 0.6 0.8 ILOAD (A) 1 C219 Figure 9-2. Low-Side, Current-Sense Transfer Function Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 27 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 10 Power Supply Recommendations The TLV904x family is specified for operation from 1.2 V to 5.5 V (±0.6 V to ±2.75 V); many specifications apply from –40°C to 125°C. Section 7.7 presents parameters that may exhibit significant variance with regard to operating voltage or temperature. CAUTION Supply voltages larger than 6 V may permanently damage the device; see the Absolute Maximum Ratings table. Place 0.1-µF bypass capacitors close to the power-supply pins to reduce coupling errors from noisy or highimpedance power supplies. For more detailed information on bypass capacitor placement, see Section 11.1. 28 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 11 Layout 11.1 Layout Guidelines For best operational performance of the device, use good printed circuit board (PCB) layout practices, including: • • • • • • • • Noise can propagate into analog circuitry through the power connections of the board and propagate to the power pins of the op amp itself. Bypass capacitors are used to reduce the coupled noise by providing a low-impedance path to ground. – 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 adequate for single-supply applications. Separate grounding for analog and digital portions of 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 electromagnetic interference (EMI) noise pickup. Take care 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 at a 90 degree angle is much better as opposed to running the traces in parallel with the noisy trace. Place the external components as close to the device as possible, as shown in Figure 11-2. Keeping RF and RG close to the inverting input minimizes parasitic capacitance. Keep the length of input traces as short as possible. 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 may significantly reduce leakage currents from nearby traces that are at different potentials. Cleaning the PCB following board assembly is recommended for best performance. Any precision integrated circuit can experience performance shifts resulting from moisture ingress into the plastic package. Following any aqueous PCB cleaning process, baking the PCB assembly is recommended to remove moisture introduced into the device packaging during the cleaning process. A low-temperature, post-cleaning bake at 85°C for 30 minutes is sufficient for most circumstances. 11.2 Layout Example + VIN 1 + VIN 2 VOUT 1 RG VOUT 2 RG RF RF Figure 11-1. Schematic Representation Place components close to device and to each other to reduce parasitic errors . OUT 1 VS+ OUT1 Use low-ESR, ceramic bypass capacitor . Place as close to the device as possible . GND V+ RF OUT 2 GND IN1 ± OUT2 IN1 + IN2 ± RF RG VIN 1 GND RG V± Use low-ESR, ceramic bypass capacitor . Place as close to the device as possible . GND VS± IN2 + Ground (GND) plane on another layer VIN 2 Keep input traces short and run the input traces as far away from the supply lines as possible . Figure 11-2. Layout Example Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 29 TLV9041, TLV9042, TLV9044 www.ti.com OUTPUT A SBOS836G – MARCH 2020 – REVISED MARCH 2022 GND GND GND V+ INPUT A INPUT B OUTPUT B VGND GND GND GND V+ GND OUT A Figure 11-3. Example Layout for VSSOP-8 (DGK) Package GND OUT B - + + - +IN A V- +IN B GND GND GND Figure 11-4. Example Layout for WSON-8 (DSG) Package 30 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 TLV9041, TLV9042, TLV9044 www.ti.com SBOS836G – MARCH 2020 – REVISED MARCH 2022 12 Device and Documentation Support 12.1 Documentation Support 12.1.1 Related Documentation For related documentation see the following: • EMI rejection ratio of operational amplifiers • QFN/SON PCB attachment • Quad flatpack no-lead logic packages 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. 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. 12.4 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. 12.5 Glossary TI Glossary This glossary lists and explains terms, acronyms, and definitions. 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. Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated Product Folder Links: TLV9041 TLV9042 TLV9044 31 PACKAGE OPTION ADDENDUM www.ti.com 7-Feb-2023 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) Samples (4/5) (6) TLV9041IDBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 T041 Samples TLV9041IDCKR ACTIVE SC70 DCK 5 3000 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 1IV Samples TLV9041IDPWR ACTIVE X2SON DPW 5 3000 RoHS & Green NIPDAU | NIPDAUAG Level-1-260C-UNLIM -40 to 125 (L, LE) Samples TLV9041SIDBVR ACTIVE SOT-23 DBV 6 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 T41S Samples TLV9041UIDBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 U041 Samples TLV9042IDDFR ACTIVE SOT-23-THIN DDF 8 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 T042 Samples TLV9042IDGKR ACTIVE VSSOP DGK 8 2500 RoHS & Green SN Level-1-260C-UNLIM -40 to 125 2H7T Samples TLV9042IDR ACTIVE SOIC D 8 2500 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 125 T9042D Samples TLV9042IDSGR ACTIVE WSON DSG 8 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 T42G Samples TLV9042IPWR ACTIVE TSSOP PW 8 2000 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 125 T9042P Samples TLV9042SIRUGR ACTIVE X2QFN RUG 10 3000 RoHS & Green NIPDAUAG Level-2-260C-1 YEAR -40 to 125 HTF Samples TLV9044IDR ACTIVE SOIC D 14 2500 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 125 TLV9044D Samples TLV9044IDYYR ACTIVE SOT-23-THIN DYY 14 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 TL944DYY Samples TLV9044IPWR ACTIVE TSSOP PW 14 2000 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 125 T9044PW Samples (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". Addendum-Page 1 PACKAGE OPTION ADDENDUM www.ti.com 7-Feb-2023 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
TLV9041IDPWR 价格&库存

很抱歉,暂时无法提供与“TLV9041IDPWR”相匹配的价格&库存,您可以联系我们找货

免费人工找货