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TMUX1102DBVR

TMUX1102DBVR

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    SC74A

  • 描述:

    PRECISION ANALOG MULTIPLEXER

  • 数据手册
  • 价格&库存
TMUX1102DBVR 数据手册
Product Folder Order Now Support & Community Tools & Software Technical Documents TMUX1101, TMUX1102 SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 TMUX110x 5-V, Low-Leakage-Current, 1:1 (SPST) Precision Switch 1 Features 3 Description • • • • • • • • • • • The TMUX1101 and TMUX1102 are precision complementary metal-oxide semiconductor (CMOS) single-pole, single-throw (SPST) switches. Wide operating supply of 1.08 V to 5.5 V allows for use in a broad array of applications from medical equipment to industrial systems. The devices support bidirectional analog and digital signals on the source (S) and drain (D) pins ranging from GND to VDD. 1 Wide supply range: 1.08 V to 5.5 V Low leakage current: 3 pA Low charge injection: –1.5 pC Low on-resistance: 1.8 Ω –40°C to +125°C operating temperature 1.8 V Logic compatible Fail-safe logic Rail to rail operation Bidirectional signal path Break-before-make switching ESD protection HBM: 2000 V The logic control input (SEL) has 1.8 V logic compatible thresholds, ensuring both TTL and CMOS logic compatibility when operating within the valid supply voltage range. The switch of the TMUX1101 is turned on when SEL is Logic 1, while TMUX1102 is turned on when SEL is Logic 0. Fail-Safe Logic circuitry allows voltages on the SEL pin to be applied before the supply pin, protecting the device from potential damage. 2 Applications • • • • • • • • • • • • • • • • Sample-and-hold circuits Feedback gain switching Signal isolation Field transmitters Programmable logic controllers (PLC) Factory automation and control Ultrasound scanners Patient monitoring and diagnostics Electrocardiogram (ECG) Data acquisition systems (DAQ) Semiconductor test equipment Battery test equipment Instrumentation: lab, analytical, portable Ultrasonic smart meters: Water and Gas Optical networking Optical test equipment The TMUX110x devices are part of the precision switches and multiplexers family. These devices have very low on and off leakage currents and low charge injection, allowing them to be used in high precision measurement applications. A low supply current of 3 nA and small package options enable use in portable applications. Device Information(1) PART NUMBER TMUX1101 TMUX1102 PACKAGE BODY SIZE (NOM) SC70 (5) (DCK) 2.00 mm × 1.25 mm SOT-23 (5) (DBV) 2.90 mm x 1.60 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. TMUX110x Block Diagrams TMUX1101 S SEL TMUX1102 D S D SEL ALL SWITCHES SHOWN FOR A LOGIC 0 INPUT 1 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. TMUX1101, TMUX1102 SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 www.ti.com Table of Contents 1 2 3 4 5 6 7 8 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Revision History..................................................... Device Comparison Table..................................... Pin Configuration and Functions ......................... Specifications......................................................... 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9 9 1 1 1 2 2 3 3 4 Absolute Maximum Ratings ...................................... 4 ESD Ratings.............................................................. 4 Recommended Operating Conditions....................... 4 Thermal Information .................................................. 4 Electrical Characteristics (VDD = 5 V ±10 %) ............ 5 Electrical Characteristics (VDD = 3.3 V ±10 %) ......... 7 Electrical Characteristics (VDD = 1.8 V ±10 %) ......... 9 Electrical Characteristics (VDD = 1.2 V ±10 %) ....... 11 Typical Characteristics ............................................ 13 Parameter Measurement Information ................ 16 9.1 9.2 9.3 9.4 9.5 9.6 On-resistance.......................................................... Off-leakage current ................................................. On-leakage current ................................................. Transition time......................................................... Charge injection ...................................................... Off isolation ............................................................. 16 16 17 17 18 18 9.7 Bandwidth ............................................................... 19 10 Detailed Description ........................................... 20 10.1 10.2 10.3 10.4 Overview ............................................................... Functional Block Diagram ..................................... Feature Description............................................... Device Functional Modes...................................... 20 20 20 22 11 Application and Implementation........................ 23 11.1 Application Information.......................................... 23 11.2 Typical Application - Sample-and-Hold Circuit .... 23 11.3 Typical Application - Switched Gain Amplifier ...... 25 12 Power Supply Recommendations ..................... 27 13 Layout................................................................... 27 13.1 Layout Guidelines ................................................. 27 13.2 Layout Example .................................................... 28 14 Device and Documentation Support ................. 29 14.1 14.2 14.3 14.4 14.5 14.6 14.7 Documentation Support ........................................ Related Links ........................................................ Receiving Notification of Documentation Updates Community Resources.......................................... Trademarks ........................................................... Electrostatic Discharge Caution ............................ Glossary ................................................................ 29 29 29 29 29 29 29 15 Mechanical, Packaging, and Orderable Information ........................................................... 30 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision B (August 2019) to Revision C Page • Added links in the applications section................................................................................................................................... 1 • Added setting for TMUX1101 and TMUX1102 DBV package RTM....................................................................................... 1 5 Revision History Changes from Revision A (March 2019) to Revision B Page • Deleted the Product Preview note from the Device Information table.................................................................................... 1 • Deleted the Product Preview note from the Device Comparison table .................................................................................. 3 • Added DBV (SOT-23) thermal values to Thermal Information table ...................................................................................... 4 Changes from Original (March 2019) to Revision A • 2 Page Changed the document From: Advanced Information To: Mixed Status. ............................................................................. 1 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 TMUX1101, TMUX1102 www.ti.com SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 6 Device Comparison Table PRODUCT DESCRIPTION TMUX1101 Low-Leakage-Current, 1:1 (SPST), Precision Switch (Logic High) TMUX1102 Low-Leakage-Current, 1:1 (SPST), Precision Switch (Logic Low) 7 Pin Configuration and Functions DCK Package 5-Pin SC70 Top View D 1 S DBV Package 5-Pin SOT-23 Top View 5 VDD D 1 S 2 GND 3 5 VDD 4 SEL 2 GND 3 4 SEL Not to scale Not to scale Pin Functions PIN NAME NO. TYPE (1) DESCRIPTION (2) D 1 I/O Drain pin. Can be an input or output. S 2 I/O Source pin. Can be an input or output. GND 3 P Ground (0 V) reference SEL 4 I Logic control input. Controls the switch state as shown in Truth Tables. VDD 5 P Positive power supply. This pin is the most positive power-supply potential. For reliable operation, connect a decoupling capacitor ranging from 0.1 µF to 10 µF between VDD and GND. (1) (2) I = input, O = output, I/O = input and output, and P = power. Refer to Device Functional Modes for what to do with unused pins. Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 3 TMUX1101, TMUX1102 SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 www.ti.com 8 Specifications 8.1 Absolute Maximum Ratings Over operating free-air temperature range (unless otherwise noted). (1) (2) (3) MIN MAX VDD Supply voltage –0.5 6 V VSEL Logic control input pin voltage (SEL) –0.5 6 V ISEL Logic control input pin current (SEL) –30 30 mA VS or VD Source or drain voltage (S, D) –0.5 VDD+0.5 IS or ID (CONT) Source or drain continuous current (S, D) –30 30 mA Tstg Storage temperature –65 150 °C TJ Junction temperature 150 °C (1) (2) (3) UNIT V Stresses beyond those listed under Absolute Maximum Rating 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 Condition. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. The algebraic convention, whereby the most negative value is a minimum and the most positive value is a maximum. All voltages are with respect to ground, unless otherwise specified. 8.2 ESD Ratings VALUE V(ESD) (1) (2) Electrostatic discharge Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins (1) ±2000 Charged device model (CDM), per JEDEC specification JESD22-C101 or ANSI/ESDA/JEDEC JS-002, all pins (2) ±750 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. 8.3 Recommended Operating Conditions Over operating free-air temperature range (unless otherwise noted). MIN VDD Supply voltage VS or VD Signal path input and output voltage (source or drain pin) (S, D) VSEL Logic control input pin voltage (SEL) TA Ambient temperature NOM MAX UNIT 1.08 5.5 V 0 VDD V 0 5.5 V –40 125 °C 8.4 Thermal Information TMUX1101 / TMUX1102 THERMAL METRIC DCK (SC70) DBV (SOT-23) UNIT 5 PINS 5 PINS RθJA Junction-to-ambient thermal resistance 348.5 224.9 °C/W RθJC(top) Junction-to-case (top) thermal resistance 238.3 150.6 °C/W RθJB Junction-to-board thermal resistance 205.7 130.0 °C/W ΨJT Junction-to-top characterization parameter 141.4 74.8 °C/W ΨJB Junction-to-board characterization parameter 204.7 129.3 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance N/A N/A °C/W 4 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 TMUX1101, TMUX1102 www.ti.com SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 8.5 Electrical Characteristics (VDD = 5 V ±10 %) At TA = 25°C, VDD = 5 V (unless otherwise noted). PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT ANALOG SWITCH RON On-resistance RON On-resistance flatness FLAT IS(OFF) ID(OFF) ID(ON) IS(ON) ID(ON) IS(ON) Source off leakage current (1) Drain off leakage current (1) Channel on leakage current Channel on leakage current VS = 0 V to VDD ISD = 10 mA Refer to On-resistance 25°C 4 Ω –40°C to +85°C VS = 0 V to VDD ISD = 10 mA Refer to On-resistance 25°C VDD = 5 V Switch Off VD = 4.5 V / 1.5 V VS = 1.5 V / 4.5 V Refer to Off-leakage current 25°C VDD = 5 V Switch Off VD = 4.5 V / 1.5 V VS = 1.5 V / 4.5 V Refer to Off-leakage current 25°C VDD = 5 V Switch On VD = VS = 2.5 V Refer to On-leakage current 25°C VDD = 5 V Switch On VD = VS = 4.5 V / 1.5 V Refer to On-leakage current 25°C 1.8 4.5 Ω –40°C to +125°C 4.9 Ω 0.85 Ω –40°C to +85°C 1.6 Ω –40°C to +125°C 1.6 Ω 0.08 nA –40°C to +85°C –0.08 –0.3 0.3 nA –40°C to +125°C –0.9 0.9 nA –0.08 ±0.005 0.08 nA –40°C to +85°C –0.3 0.3 nA –40°C to +125°C –0.9 0.9 nA 0.025 nA –0.025 ±0.005 ±0.003 –40°C to +85°C –0.2 0.2 nA –40°C to +125°C –0.95 0.95 nA 0.1 nA –40°C to +85°C –0.1 ±0.01 –0.35 0.35 nA –40°C to +125°C –2 2 nA LOGIC INPUTS (SEL) VIH Input logic high –40°C to +125°C 1.49 5.5 V VIL Input logic low –40°C to +125°C 0 0.87 V IIH IIL Input leakage current 25°C IIH IIL Input leakage current –40°C to +125°C CIN Logic input capacitance 25°C CIN Logic input capacitance –40°C to +125°C ±0.005 µA ±0.06 1 µA pF 2 pF POWER SUPPLY IDD (1) VDD supply current Logic inputs = 0 V or 5.5 V 25°C –40°C to +125°C 0.003 µA 1 µA When VS is 4.5 V, VD is 1.5 V or when VS is 1.5 V, VD is 4.5 V. Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 5 TMUX1101, TMUX1102 SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 www.ti.com Electrical Characteristics (VDD = 5 V ±10 %) (continued) At TA = 25°C, VDD = 5 V (unless otherwise noted). PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT DYNAMIC CHARACTERISTICS tTRAN QC OISO 25°C 12 ns Transition time from control input VS = 3 V RL = 200 Ω, CL = 15 pF Refer to Transition time Charge Injection VS = 1 V RS = 0 Ω, CL = 1 nF Refer to Charge injection 25°C –1.5 pC RL = 50 Ω, CL = 5 pF f = 1 MHz Refer to Off isolation 25°C –62 dB RL = 50 Ω, CL = 5 pF f = 10 MHz Refer to Off isolation 25°C –40 dB 300 MHz Off Isolation –40°C to +85°C 17 ns –40°C to +125°C 18 ns BW Bandwidth RL = 50 Ω, CL = 5 pF Refer to Bandwidth 25°C CSOFF Source off capacitance f = 1 MHz 25°C 6 pF CDOFF Drain off capacitance f = 1 MHz 25°C 10 pF CSON CDON On capacitance f = 1 MHz 25°C 17 pF 6 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 TMUX1101, TMUX1102 www.ti.com SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 8.6 Electrical Characteristics (VDD = 3.3 V ±10 %) At TA = 25°C, VDD = 3.3 V (unless otherwise noted). PARAMETER TEST CONDITIONS TA MIN TYP MAX 3.7 UNIT ANALOG SWITCH RON On-resistance RON On-resistance flatness FLAT IS(OFF) ID(OFF) ID(ON) IS(ON) Source off leakage current (1) Drain off leakage current (1) Channel on leakage current VS = 0 V to VDD ISD = 10 mA Refer to On-resistance 25°C 8.8 Ω –40°C to +85°C 9.5 Ω –40°C to +125°C 9.8 Ω VS = 0 V to VDD ISD = 10 mA Refer to On-resistance 25°C VDD = 3.3 V Switch Off VD = 3 V / 1 V VS = 1 V / 3 V Refer to Off-leakage current 25°C VDD = 3.3 V Switch Off VD = 3 V / 1 V VS = 1 V / 3 V Refer to Off-leakage current 25°C VDD = 3.3 V Switch On VD = VS = 3 V / 1 V Refer to On-leakage current –40°C to +85°C –40°C to +125°C –0.05 1.9 Ω 2 Ω 2.2 Ω 0.05 nA –40°C to +85°C –0.2 0.2 nA –40°C to +125°C –0.9 0.9 nA 0.05 nA –40°C to +85°C –0.2 0.2 nA –40°C to +125°C –0.9 0.9 nA 25°C –0.1 0.1 nA –40°C to +85°C –0.05 ±0.001 ±0.001 ±0.005 –0.35 0.35 nA –40°C to +125°C –2 2 nA LOGIC INPUTS (SEL) VIH Input logic high –40°C to +125°C 1.35 5.5 V VIL Input logic low –40°C to +125°C 0 0.8 V IIH IIL Input leakage current 25°C IIH IIL Input leakage current –40°C to +125°C CIN Logic input capacitance 25°C CIN Logic input capacitance –40°C to +125°C ±0.005 µA ±0.05 1 µA pF 2 pF POWER SUPPLY IDD (1) VDD supply current Logic inputs = 0 V or 5.5 V 25°C –40°C to +125°C 0.002 µA 0.65 µA When VS is 3 V, VD is 1 V or when VS is 1 V, VD is 3 V. Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 7 TMUX1101, TMUX1102 SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 www.ti.com Electrical Characteristics (VDD = 3.3 V ±10 %) (continued) At TA = 25°C, VDD = 3.3 V (unless otherwise noted). PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT DYNAMIC CHARACTERISTICS tTRAN QC OISO 25°C 14 ns Transition time from control input VS = 2 V RL = 200 Ω, CL = 15 pF Refer to Transition time Charge Injection VS = 1 V RS = 0 Ω, CL = 1 nF Refer to Charge injection 25°C –1.5 pC RL = 50 Ω, CL = 5 pF f = 1 MHz Refer to Off isolation 25°C –62 dB RL = 50 Ω, CL = 5 pF f = 10 MHz Refer to Off isolation 25°C –40 dB 300 MHz Off Isolation –40°C to +85°C 20 ns –40°C to +125°C 22 ns BW Bandwidth RL = 50 Ω, CL = 5 pF Refer to Bandwidth 25°C CSOFF Source off capacitance f = 1 MHz 25°C 6 pF CDOFF Drain off capacitance f = 1 MHz 25°C 10 pF CSON CDON On capacitance f = 1 MHz 25°C 17 pF 8 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 TMUX1101, TMUX1102 www.ti.com SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 8.7 Electrical Characteristics (VDD = 1.8 V ±10 %) At TA = 25°C, VDD = 1.8 V (unless otherwise noted). PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT ANALOG SWITCH RON On-resistance IS(OFF) ID(OFF) ID(ON) IS(ON) Source off leakage current (1) Drain off leakage current (1) Channel on leakage current VS = 0 V to VDD ISD = 10 mA Refer to On-resistance 25°C VDD = 1.98 V Switch Off VD = 1.62 V / 1 V VS = 1 V / 1.62 V Refer to Off-leakage current 25°C VDD = 1.98 V Switch Off VD = 1.62 V / 1 V VS = 1 V / 1.62 V Refer to Off-leakage current 25°C VDD = 1.98 V Switch On VD = VS = 1.62 V / 1 V Refer to On-leakage current 25°C 40 Ω –40°C to +85°C 80 Ω –40°C to +125°C 80 Ω 0.05 nA –40°C to +85°C –0.05 –0.2 0.2 nA –40°C to +125°C –0.9 0.9 nA –0.05 ±0.001 0.05 nA –40°C to +85°C –0.2 0.2 nA –40°C to +125°C –0.9 0.9 nA 0.1 nA –0.35 0.35 nA –40°C to +125°C –2 2 nA –40°C to +85°C –0.1 ±0.001 ±0.005 LOGIC INPUTS (SEL) VIH Input logic high –40°C to +125°C 1.07 5.5 V VIL Input logic low –40°C to +125°C 0 0.68 V IIH IIL Input leakage current 25°C IIH IIL Input leakage current –40°C to +125°C CIN Logic input capacitance 25°C CIN Logic input capacitance –40°C to +125°C ±0.005 µA ±0.05 1 µA pF 2 pF POWER SUPPLY IDD (1) VDD supply current Logic inputs = 0 V or 5.5 V 25°C –40°C to +125°C 0.001 µA 0.45 µA When VS is 1.62 V, VD is 1 V or when VS is 1 V, VD is 1.62 V. Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 9 TMUX1101, TMUX1102 SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 www.ti.com Electrical Characteristics (VDD = 1.8 V ±10 %) (continued) At TA = 25°C, VDD = 1.8 V (unless otherwise noted). PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT DYNAMIC CHARACTERISTICS tTRAN QC OISO 25°C 25 ns Transition time from control input VS = 1 V RL = 200 Ω, CL = 15 pF Refer to Transition time Charge Injection VS = 1 V RS = 0 Ω, CL = 1 nF Refer to Charge injection 25°C –1.5 pC RL = 50 Ω, CL = 5 pF f = 1 MHz Refer to Off isolation 25°C –62 dB RL = 50 Ω, CL = 5 pF f = 10 MHz Refer to Off isolation 25°C –40 dB 300 MHz Off Isolation –40°C to +85°C 44 ns –40°C to +125°C 44 ns BW Bandwidth RL = 50 Ω, CL = 5 pF Refer to Bandwidth 25°C CSOFF Source off capacitance f = 1 MHz 25°C 6 pF CDOFF Drain off capacitance f = 1 MHz 25°C 10 pF CSON CDON On capacitance f = 1 MHz 25°C 17 pF 10 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 TMUX1101, TMUX1102 www.ti.com SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 8.8 Electrical Characteristics (VDD = 1.2 V ±10 %) PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT ANALOG SWITCH RON IS(OFF) ID(OFF) ID(ON) IS(ON) VS = 0 V to VDD ISD = 10 mA Refer to On-resistance 25°C On-resistance 25°C Source off leakage current (1) VDD = 1.32 V Switch Off VD = 1 V / 0.8 V VS = 0.8 V / 1 V Refer to Off-leakage current VDD = 1.32 V Switch Off VD = 1 V / 0.8 V VS = 0.8 V / 1 V Refer to Off-leakage current 25°C VDD = 1.32 V Switch On VD = VS = 1 V / 0.8 V Refer to On-leakage current 25°C Drain off leakage current (1) Channel on leakage current 70 –40°C to +85°C Ω 105 –40°C to +125°C –0.05 ±0.001 Ω 105 Ω 0.05 nA –40°C to +85°C –0.2 0.2 nA –40°C to +125°C –0.9 0.9 nA 0.05 nA –0.05 ±0.001 –40°C to +85°C –0.2 0.2 nA –40°C to +125°C –0.9 0.9 nA 0.1 nA –0.35 0.35 nA –40°C to +125°C –2 2 nA –40°C to +85°C –0.1 ±0.005 LOGIC INPUTS (SEL) VIH Input logic high –40°C to +125°C 0.96 5.5 V VIL Input logic low –40°C to +125°C 0 0.36 V IIH IIL Input leakage current 25°C IIH IIL Input leakage current –40°C to +125°C CIN Logic input capacitance 25°C CIN Logic input capacitance –40°C to +125°C ±0.005 µA ±0.05 1 µA pF 2 pF POWER SUPPLY IDD (1) VDD supply current Logic inputs = 0 V or 5.5 V 25°C –40°C to +125°C 0.001 µA 0.38 µA When VS is 1 V, VD is 0.8 V or when VS is 0.8 V, VD is 1 V. Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 11 TMUX1101, TMUX1102 SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 www.ti.com Electrical Characteristics (VDD = 1.2 V ±10 %) (continued) PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT DYNAMIC CHARACTERISTICS tTRAN QC OISO Transition time from control input Charge Injection Off Isolation VS = 1 V RL = 200 Ω, CL = 15 pF Refer to Transition time 25°C 55 ns –40°C to +85°C 190 ns –40°C to +125°C 190 ns VS = 1 V RS = 0 Ω, CL = 1 nF Refer to Charge injection 25°C –1.5 pC RL = 50 Ω, CL = 5 pF f = 1 MHz Refer to Off isolation 25°C –62 dB RL = 50 Ω, CL = 5 pF f = 10 MHz Refer to Off isolation 25°C –42 dB 300 MHz BW Bandwidth RL = 50 Ω, CL = 5 pF Refer to Bandwidth 25°C CSOFF Source off capacitance f = 1 MHz 25°C 6 pF CDOFF Drain off capacitance f = 1 MHz 25°C 10 pF CSON CDON On capacitance f = 1 MHz 25°C 17 pF 12 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 TMUX1101, TMUX1102 www.ti.com SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 8.9 Typical Characteristics At TA = 25°C, VDD = 5 V (unless otherwise noted). 5 6 VDD = 3 V VDD = 3.63 V VDD = 4.5 V VDD = 5.5 V TA = 125°C TA = 85°C TA = 25°C TA = 40°C 4 On Resistance (:) On Resistance (:) 5 4.5 4 3 2 3.5 3 2.5 2 1.5 1 1 0.5 0 0 0 1 2 3 4 VS or VD - Source or Drain Voltage (V) 5 5.5 0 1 2 3 4 VS or VD - Source or Drain Voltage (V) D001 TA = 25°C Figure 2. On-Resistance vs Temperature 80 8 TA = 125°C TA = 85°C TA = 25°C TA = 40°C 7 VDD = 1.08 V VDD = 1.32 V VDD = 1.62 V VDD = 1.98 V 70 60 On Resistance (:) 6 On Resistance (:) D002 VDD = 5 V Figure 1. On-Resistance vs Source or Drain Voltage 5 4 3 50 40 30 2 20 1 10 0 0 0 0.5 1 1.5 2 2.5 3 VS or VD - Source or Drain Voltage (V) 0 3.5 D003 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 VS or VD - Source or Drain Voltage (V) 20 80 15 60 VDD = 1.98 V D004 40 VDD = 3.63 V On-Leakage (pA) VDD = 1.32 V 2 Figure 4. On-Resistance vs Source or Drain Voltage Figure 3. On-Resistance vs Temperature 10 1.8 TA = 25°C VDD = 3.3 V On-Leakage (pA) 5 5 0 -5 20 0 -20 -10 -40 -15 -60 -20 -80 0 0.5 1 1.5 2 2.5 3 VS or VD - Source or Drain Voltage (V) 3.5 4 D005 0 1 2 3 4 VS or VD - Source or Drain Voltage (V) TA = 25°C 5 D006 VDD = 5 V Figure 5. On-Leakage vs Source or Drain Voltage Figure 6. On-Leakage vs Source or Drain Voltage Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 13 TMUX1101, TMUX1102 SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 www.ti.com Typical Characteristics (continued) 1 2 IOFF ION 0.5 0.25 0 -0.25 -0.5 -0.75 -1 -40 IOFF ION 1.5 Leakage Current (nA) Leakage Current (nA) 0.75 1 0.5 0 -0.5 -1 -1.5 -20 0 20 40 60 Temperature (qC) 80 100 -2 -40 120 -20 0 20 40 60 Temperature (qC) D007 VDD = 3.3 V D008 Figure 8. Leakage Current vs Temperature VDD = 5 V VDD = 3.3 V VDD = 1.8 V VDD = 1.2 V VDD = 5 V VDD = 3.3 V VDD = 1.8 V VDD = 1.2 V 400 Supply Current (PA) 0.3 Supply Current (PA) 120 500 0.4 0.2 0.1 300 200 100 0 -0.1 -40 0 -20 0 20 40 60 80 Temperature (qC) 100 120 0 140 0.5 1 D009 VSEL = 5.5 V 1.5 2 2.5 3 3.5 Logic Voltage (V) 4 4.5 5 D010 TA = 25°C Figure 9. Supply Current vs Temperature Figure 10. Supply Current vs Logic Voltage 20 8 VDD = 3.3 V VDD = 5 V 15 VDD = 1.2 V VDD = 1.8 V 6 10 Charge Injection (pC) Charge Injection (pC) 100 VDD = 5 V Figure 7. Leakage Current vs Temperature 5 0 -5 -10 -15 4 2 0 -2 -4 -6 -20 -8 0 1 2 3 VS - Source Voltage (V) 4 5 0 0.25 0.5 D011 TA = -40°C to 125°C 0.75 1 1.25 Source Voltage (V) 1.5 1.75 2 D012 TA = –40°C to 125°C Figure 11. Charge Injection vs Source Voltage 14 80 Figure 12. Charge Injection vs Source Voltage Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 TMUX1101, TMUX1102 www.ti.com SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 Typical Characteristics (continued) 26 10 Transition ON Transition OFF 24 0 -10 22 -20 Magnitude (dB) Time (ns) 20 18 16 14 -40 -50 -60 -70 12 -80 10 8 1.5 -30 -90 2 2.5 3 3.5 4 4.5 VDD - Supply Voltage (V) 5 5.5 -100 100k 1M D013 TA = -40°C to +125°C 10M Frequency (Hz) 100M D014 TA = -40°C to +125°C Figure 13. Output TTRANSITION vs Supply Voltage Figure 14. Off-Isolation vs Frequency 0 -1 Gain (dB) -2 -3 -4 -5 -6 1M 10M Frequency (Hz) 100M D015 TA = -40°C to +125°C Figure 15. On Response vs Frequency Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 15 TMUX1101, TMUX1102 SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 www.ti.com 9 Parameter Measurement Information 9.1 On-resistance The on-resistance of a device is the ohmic resistance between the source (S) and drain (D) pins of the device. The on-resistance varies with input voltage and supply voltage. The symbol RON is used to denote on-resistance. The measurement setup used to measure RON is shown in Figure 16. Voltage (V) and current (ISD) are measured using this setup, and RON is computed with RON = V / ISD: V ISD S D VS Figure 16. On-Resistance measurement setup 9.2 Off-leakage current There are two types of leakage currents associated with a switch during the off state: 1. Source off-leakage current 2. Drain off-leakage current Source leakage current is defined as the leakage current flowing into or out of the source pin when the switch is off. This current is denoted by the symbol IS(OFF). Drain leakage current is defined as the leakage current flowing into or out of the drain pin when the switch is off. This current is denoted by the symbol ID(OFF). The setup used to measure both off-leakage currents is shown in Figure 17. VDD VDD VDD VDD IS (OFF) ID (OFF) D S A A VD VS S D VS VD GND GND Figure 17. Off-leakage measurement setup 16 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 TMUX1101, TMUX1102 www.ti.com SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 9.3 On-leakage current Source on-leakage current is defined as the leakage current flowing into or out of the source pin when the switch is on. This current is denoted by the symbol IS(ON). Drain on-leakage current is defined as the leakage current flowing into or out of the drain pin when the switch is on. This current is denoted by the symbol ID(ON). Either the source pin or drain pin is left floating during the measurement. Figure 18 shows the circuit used for measuring the on-leakage current, denoted by IS(ON) or ID(ON). VDD VDD VDD VDD IS (ON) ID (ON) D1 S1 N.C. A A VD S1 D1 N.C. VS GND GND Figure 18. On-leakage measurement setup 9.4 Transition time Transition time is defined as the time taken by the output of the device to rise or fall 10% after the address signal has risen or fallen past the logic threshold. The 10% transition measurement is utilized to provide the timing of the device. System level timing can then account for the time constant added from the load resistance and load capacitance. Figure 19 shows the setup used to measure transition time, denoted by the symbol tTRANSITION. VDD 0.1 F VDD ADDRESS DRIVE (VSEL) VDD tf < 5ns tr < 5ns VIH VIL 0V VS S D RL tTRANSITION tTRANSITION OUTPUT 90% CL SEL OUTPUT VSEL 10% GND 0V Figure 19. Transition-time measurement setup Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 17 TMUX1101, TMUX1102 SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 www.ti.com 9.5 Charge injection The TMUX110x devices have a transmission-gate topology. Any mismatch in capacitance between the NMOS and PMOS transistors results in a charge injected into the drain or source during the falling or rising edge of the gate signal. The amount of charge injected into the source or drain of the device is known as charge injection, and is denoted by the symbol QC. Figure 20 shows the setup used to measure charge injection from source (S) to drain (D). VDD 0.1 F VDD VDD VSEL VS 0V S D OUTPUT VOUT CL Output VOUT VS QC = CL × VOUT SEL VSEL GND Figure 20. Charge-injection measurement setup 9.6 Off isolation Off isolation is defined as the ratio of the signal at the drain pin (D) of the device when a signal is applied to the source pin (S) of an off-channel. The characteristic impedance, Z0, for the measurement is 50 Ω. Figure 21 shows the setup used to measure off isolation. Use off isolation equation to compute off isolation. 0.1µF NETWORK VDD VS ANALYZER 50Ÿ S VSIG D VOUT RL 50Ÿ GND Figure 21. Off isolation measurement setup Off Isolation 18 §V · 20 ˜ Log ¨ OUT ¸ © VS ¹ (1) Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 TMUX1101, TMUX1102 www.ti.com SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 9.7 Bandwidth Bandwidth is defined as the range of frequencies that are attenuated by less than 3 dB when the input is applied to the source pin (S) of an on-channel, and the output is measured at the drain pin (D) of the device. The characteristic impedance, Z0, for the measurement is 50 Ω. Figure 22 shows the setup used to measure bandwidth. VDD 0.1µF NETWORK VDD VS ANALYZER 50Ÿ S VSIG D VOUT RL 50Ÿ GND Figure 22. Bandwidth measurement setup Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 19 TMUX1101, TMUX1102 SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 www.ti.com 10 Detailed Description 10.1 Overview The TMUX1101 and TMUX1102 are 1:1 (SPST) switches. The TMUX110x devices have a controllable singlepole, single-throw switch that is turned on or off based on the state of the select pin. The switch of the TMUX1101 is turned on with a Logic 1 on the select pin, while a Logic 0 is required to turn on switch in the TMUX1102. Figure 23 shows the functional block diagram for the TMUX110x devices. 10.2 Functional Block Diagram TMUX1101 S TMUX1102 D SEL S D SEL ALL SWITCHES SHOWN FOR A LOGIC 0 INPUT Figure 23. TMUX110x Functional Block Diagram 10.3 Feature Description 10.3.1 Bidirectional operation The TMUX110x conducts equally well from source (S) to drain (D) or from drain (D) to source (S). Each channel has very similar characteristics in both directions and supports both analog and digital signals. 10.3.2 Rail to rail operation The valid signal path input/output voltage for TMUX110x ranges from GND to VDD. 10.3.3 1.8 V Logic compatible inputs The TMUX110x devices have 1.8-V logic compatible control for all logic control inputs. The logic input thresholds scale with supply but still provide 1.8-V logic control when operating at 5.5 V supply voltage. 1.8-V logic level inputs allows the TMUX110x devices to interface with processors that have lower logic I/O rails and eliminates the need for an external translator, which saves both space and BOM cost. The current consumption of the TMUX110x devices increase when using 1.8 V logic with higher supply voltage as shown in Figure 10. For more information on 1.8 V logic implementations refer to Simplifying Design with 1.8 V logic Muxes and Switches. 10.3.4 Fail-safe logic The TMUX110x supports Fail-Safe Logic on the control input pin (SEL) allowing for operation up to 5.5 V, regardless of the state of the supply pin. This feature allows voltages on the control pin to be applied before the supply pin, protecting the device from potential damage. Fail-Safe Logic minimizes system complexity by removing the need for power supply sequencing on the logic control pin. For example, the Fail-Safe Logic feature allows the select pin of the TMUX110x devices to be ramped to 5.5 V while VDD = 0 V. Additionally, the feature enables operation of the TMUX110x with VDD = 1.2 V while allowing the select pin to interface with a logic level of another device up to 5.5 V. 20 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 TMUX1101, TMUX1102 www.ti.com SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 Feature Description (continued) 10.3.5 Ultra-low Leakage Current The TMUX110x devices provide extremely low on-leakage and off-leakage currents. The TMUX110x devices are capable of switching signals from high source-impedance inputs into a high input-impedance op amp with minimal offset error because of the ultra-low leakage currents. Figure 24 shows typical leakage currents of the TMUX110x devices versus temperature at VDD = 5 V. 2 IOFF ION Leakage Current (nA) 1.5 1 0.5 0 -0.5 -1 -1.5 -2 -40 -20 0 20 40 60 Temperature (qC) 80 100 120 D008 Figure 24. Leakage Current vs Temperature 10.3.6 Ultra-low Charge Injection The TMUX110x devices have a transmission gate topology, as shown in Figure 25. Any mismatch in the stray capacitance associated with the NMOS and PMOS causes an output level change whenever the switch is opened or closed. The TMUX110x devices have special charge-injection cancellation circuitry that reduces the source-to-drain charge injection to -1.5 pC at VS = 1 V as shown in Figure 26. 20 OFF ON VDD = 3.3 V VDD = 5 V CGDN CGSN D S CGDP CGSP Charge Injection (pC) 15 10 5 0 -5 -10 -15 -20 0 OFF ON Figure 25. Transmission Gate Topology 1 2 3 VS - Source Voltage (V) 4 5 D011 Figure 26. Charge Injection vs Source Voltage Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 21 TMUX1101, TMUX1102 SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 www.ti.com 10.4 Device Functional Modes The TMUX110x devices have a controllable single-pole, single-throw switch that is turned on or turned off based on the state of the corresponding select pin. The control pin can be as high as 5.5 V. The TMUX110x devices can be operated without any external components except for the supply decoupling capacitors. Unused logic control pins should be tied to GND or VDD in order to ensure the device does not consume additional current as highlighted in Implications of Slow or Floating CMOS Inputs. Unused signal path inputs (Sx or Dx) should be connection to GND. 10.4.1 Truth Tables Table 1 and Table 2 show the truth tables for the TMUX1101 and TMUX1102 respectively. Table 1. TMUX1101 Truth table SEL SWITCH STATE 0 OFF (HI-Z) 1 ON Table 2. TMUX1102 Truth table SEL 22 SWITCH STATE 0 ON 1 OFF (HI-Z) Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 TMUX1101, TMUX1102 www.ti.com SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 11 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. 11.1 Application Information The TMUX11xx family offers ulta-low input and output leakage currents and low charge injection. These devices operate up to 5.5 V, and offer true rail-to-rail input and output of both analog and digital signals. The TMUX110x have a low on-capacitance which allows faster settling time when multiplexing inputs in the time domain. These features make the TMUX11xx devices a family of precision, high-performance switches and multiplexers for lowvoltage applications. 11.2 Typical Application - Sample-and-Hold Circuit One useful application to take advantage of the TMUX1101 and TMUX1102's performance is the sample-andhold circuit. A sample-and-hold circuit can be useful for an analog to digital converter (ADC) to sample a varying input voltage with improved reliability and stability. It can also be used to store the output samples from a single digital-to-analog converter (DAC) in a multi-output application. A simple sample-and-hold circuit can be realized using an analog switch such as the TMUX1101, and TMUX1102 analog switches. Figure 27 shows a single channel sample-and hold circuit using either of the TMUX110x devices. TMUX110x DAC + OP AMP ± + CH SEL OP AMP RL VOUT ± CL (1.8V Capable Control Logic) Figure 27. Single Channel Sample-and-Hold Circuit Example An optional op amp is used before the switch since driving large capacitive loads is a typical limitation of buffered DACs. The additional buffer stage is included following the DAC to prevent potential stability problems from driving a large capacitive load. Ideally, the switch delivers only the input signals to the holding capacitors. However, when the switch is toggled, some amount of charge is transferred to the switch output in the form of charge injection, resulting in a pedestal sampling error. The TMUX1101 and TMUX1102 switches have excellent charge injection performance of only -1.5 pC, making them ideal choices for this implementation to minimize sampling error. The pedestal error voltage is indirectly related to the size of the capacitance on the output, for better precision a larger capacitor is required due to charge injection. Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 23 TMUX1101, TMUX1102 SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 www.ti.com Typical Application - Sample-and-Hold Circuit (continued) 11.2.1 Design Requirements The purpose of this precision design is to implement an optimized single channel sample-and-hold circuit using a precision 1:1 (SPST) CMOS switch. The sample-and-hold circuit needs to be capable of supporting high accuracy with minimized pedestal error and fast settling time. 11.2.2 Detailed Design Procedure The TMUX1101 or TMUX1102 switch is used in conjunction with the voltage holding capacitors (CH) to implement the sample-and-hold circuit. The basic operation is: 1. When the switch is closed, it samples the input voltage and charges the holding capacitors (CH) to the input voltage values. 2. When the switch is open, the holding capacitors (CH) holds its previous value, maintaining stable voltage at the amplifier output (VOUT). Due to switch and capacitor leakage current, as well as amplifier bias current, the voltage on the hold capacitors droops with time. The TMUX1101 and TMUX1102 minimize the droops due to its ultra-low leakage performance. At 25°C, the TMUX1101 and TMUX1102 have extremely low leakage current of 3 pA typical. Refer to Sample & Hold Glitch Reduction for Precision Outputs Reference Design for more information on sample-and-hold circuits. 11.2.3 Application Curve TMUX1101 and TMUX1102 have excellent charge injection performance and ultra-low leakage current, making them ideal choices to minimize sampling error for the sample-and-hold application. The charge injection and leakage performance are shown in Figure 28 and Figure 29 respectively. 80 20 VDD = 3.3 V VDD = 5 V 60 40 10 On-Leakage (pA) Charge Injection (pC) 15 5 0 -5 0 -20 -10 -40 -15 -60 -80 -20 0 24 20 1 2 3 VS - Source Voltage (V) 4 5 D011 0 1 2 3 4 VS or VD - Source or Drain Voltage (V) 5 D006 TA = –40°C to +125°C VDD = 5 V Figure 28. Charge Injection vs Source Voltage Figure 29. On-Leakage vs Source or Drain Voltage Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 TMUX1101, TMUX1102 www.ti.com SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 11.3 Typical Application - Switched Gain Amplifier Switches and multiplexers are commonly used in the feedback path of amplifier circuits to provide configurable gain control. By using various resistor values on the switch path, the TMUX110x allows the system to have multiple gain settings. An external resistor ensures the amplifier isn't operating in an open loop configuration. A transimpedance amplifier (TIA) for photodiode inputs is a common circuit that requires gain control using a switch to convert the output current of the photodiode into a voltage for the MCU or processor. The amount of light present during a photodiode measurement is dependent on the time of day and available light source. An external switch such as the TMUX110x can be utilized to increase the gain when a smaller photodiode current is present. The leakage current, capacitance, and charge injection performance of the TMUX110x are key specifications to evaluate when selecting a device for gain control. An example switched gain amplifier circuit is shown in Figure 30. VI/O VDD 0.1µF VDD Processor 1.8V Logic I/O SEL Digital Processing RF_2 RF_1 VDD VDD + OP AMP Gain / Filter Network ADC Figure 30. Configurable Gain Setting of a TIA circuit 11.3.1 Design Requirements For this design example, use the parameters listed in Table 3. Table 3. Design parameters PARAMETERS VALUES Supply (VDD) 3.3 V Input / Output signal range 0 µA to 10 µA Control logic thresholds 1.8 V compatible Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 25 TMUX1101, TMUX1102 SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 www.ti.com 11.3.2 Detailed Design Procedure The TMUX110x devices can be operated without any external components except for the supply decoupling capacitors. All inputs signals passing through the switch must fall within the recommended operating conditions of the TMUX110x, including signal range and continuous current. For this design example, with a supply of 3.3 V, the signals can range from 0 V to 3.3 V when the device is powered. The max continuous current can be 30 mA. Photodiodes commonly have a current output that ranges from a few hundred picoamps to tens of microamps based on the amount of light being absorbed. The TMUX110x devices have a typical On-leakage current of less than 10 pA, which would lead to an accuracy well within 1% of a full scale 10 µA signal. The low ON and OFF capacitance of the TMUX110x improves system stability by minimizing the total capacitance on the output of the amplifier. Lower capacitance leads to less overshoot and ringing in the system, which can cause the amplifier circuit to become unstable if the phase margin is not at least 45°. Refer to Improve Stability Issues with Low CON Multiplexers for more information on calculating the phase margin versus percent overshoot. 11.3.3 Application Curve The TMUX110x devices are capable of switching signals from high source-impedance inputs into a high inputimpedance op amp with minimal offset error because of the ultra-low leakage currents. 20 15 On-Leakage (pA) 10 VDD = 1.32 V VDD = 1.98 V VDD = 3.63 V 5 0 -5 -10 -15 -20 0 0.5 1 1.5 2 2.5 3 VS or VD - Source or Drain Voltage (V) 3.5 4 D005 TA = 25°C Figure 31. On-Leakage vs Source or Drain Voltage 26 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 TMUX1101, TMUX1102 www.ti.com SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 12 Power Supply Recommendations The TMUX110x devices operate across a wide supply range of 1.08 V to 5.5 V. Do not exceed the absolute maximum ratings because stresses beyond the listed ratings can cause permanent damage to the devices. Power-supply bypassing improves noise margin and prevents switching noise propagation from the VDD supply to other components. Good power-supply decoupling is important to achieve optimum performance. For improved supply noise immunity, use a supply decoupling capacitor ranging from 0.1 μF to 10 μF from VDD to ground. Place the bypass capacitors as close to the power supply pins of the device as possible using low-impedance connections. TI recommends using multi-layer ceramic chip capacitors (MLCCs) that offer low equivalent series resistance (ESR) and inductance (ESL) characteristics for power-supply decoupling purposes. For very sensitive systems, or for systems in harsh noise environments, avoiding the use of vias for connecting the capacitors to the device pins may offer superior noise immunity. The use of multiple vias in parallel lowers the overall inductance and is beneficial for connections to ground planes. 13 Layout 13.1 Layout Guidelines 13.1.1 Layout Information When a PCB trace turns a corner at a 90° angle, a reflection can occur. A reflection occurs primarily because of the change of width of the trace. At the apex of the turn, the trace width increases to 1.414 times the width. This increase upsets the transmission-line characteristics, especially the distributed capacitance and self–inductance of the trace which results in the reflection. Not all PCB traces can be straight and therefore some traces must turn corners.Figure 32 shows progressively better techniques of rounding corners. Only the last example (BEST) maintains constant trace width and minimizes reflections. BETTER BEST 2W WORST 1W min. W Figure 32. Trace example Route high-speed signals using a minimum of vias and corners which reduces signal reflections and impedance changes. When a via must be used, increase the clearance size around it to minimize its capacitance. Each via introduces discontinuities in the signal’s transmission line and increases the chance of picking up interference from the other layers of the board. Be careful when designing test points, throughhole pins are not recommended at high frequencies. Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 27 TMUX1101, TMUX1102 SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 www.ti.com Layout Guidelines (continued) Figure 33 illustrates an example of a PCB layout with the TMUX110x. Some key considerations are: • • • • Decouple the VDD pin with a 0.1-µF capacitor, placed as close to the pin as possible. Make sure that the capacitor voltage rating is sufficient for the VDD supply. Keep the input lines as short as possible. Use a solid ground plane to help reduce electromagnetic interference (EMI) noise pickup. Do not run sensitive analog traces in parallel with digital traces. Avoid crossing digital and analog traces if possible, and only make perpendicular crossings when necessary. 13.2 Layout Example C Wide (low inductance) trace for power TMUX110x Via to GND plane Figure 33. TMUX110x Layout example 28 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 TMUX1101, TMUX1102 www.ti.com SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 14 Device and Documentation Support 14.1 Documentation Support 14.1.1 Related Documentation Texas Instruments, Sample and Hold Glitch Reduction for Precision Outputs Reference Design. Texas Instruments, True Differential, 4 x 2 MUX, Analog Front End, Simultaneous-Sampling ADC Circuit. Texas Instruments, Improve Stability Issues with Low CON Multiplexers. Texas Instruments, Simplifying Design with 1.8 V logic Muxes and Switches. Texas Instruments, Eliminate Power Sequencing with Powered-off Protection Signal Switches. Texas Instruments, System-Level Protection for High-Voltage Analog Multiplexers. 14.2 Related Links The table below lists quick access links. Categories include technical documents, support and community resources, tools and software, and quick access to order now. Table 4. Related Links PARTS PRODUCT FOLDER ORDER NOW TECHNICAL DOCUMENTS TOOLS & SOFTWARE SUPPORT & COMMUNITY TMUX1101 Click here Click here Click here Click here Click here TMUX1102 Click here Click here Click here Click here Click here 14.3 Receiving Notification of Documentation Updates To receive notification of documentation updates, navigate to the device product folder on ti.com. In the upper right corner, click on Alert me 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. 14.4 Community 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. 14.5 Trademarks E2E is a trademark of Texas Instruments. All other trademarks are the property of their respective owners. 14.6 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. 14.7 Glossary SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions. Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 29 TMUX1101, TMUX1102 SCDS410C – MARCH 2019 – REVISED NOVEMBER 2019 www.ti.com 15 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. 30 Submit Documentation Feedback Copyright © 2019, Texas Instruments Incorporated Product Folder Links: TMUX1101 TMUX1102 PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2020 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) TMUX1101DBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 1W1F TMUX1101DCKR ACTIVE SC70 DCK 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 101 TMUX1102DBVR ACTIVE SOT-23 DBV 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 1W3F TMUX1102DCKR ACTIVE SC70 DCK 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 102 (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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