Transimpedance Amplifier Circuit
CIRCUIT0020
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

Description & Features

Technical documentation

Support & Training

Order Now


Key Document

Description

The transimpedance op amp circuit configuration converts an input current source into an output voltage. The current to voltage gain is based on the feedback resistance. The circuit is able to maintain a constant voltage bias across the input source as the input current changes which benefits many sensors.

Features
  • Uses a JFET or CMOS input op amp with low bias current to reduce DC errors
  • A bias voltage can be added to the non-inverting input to set the output
  • Operates within the linear output voltage swing (see Aol specification) to minimize non-linearity errors

View Important Notice covering authorized use, intellectual property matters and disclaimers.


Technical documentation
Application notes (5)
Title Type Size (KB) Date
PDF 450 06 Mar 2020
PDF 440 24 Oct 2019
PDF 141 01 Feb 2019
PDF 153 16 May 2017
PDF 3268 25 Sep 2012
Design files (1)
Title Type Size (KB) Date
ZIP 9 21 Feb 2018

Design tools & simulation (1)

Name Part Number Tool Type
SPICE-based analog simulation program  TINA-TI  Simulation tools 

Hardware development (1)

Name Part Number Tool Type
Universal Do-It-Yourself (DIY) Amplifier Circuit Evaluation Module  DIYAMP-EVM  Evaluation boards 

Reference Designs (2)

Name Part Number Tool Type
1 MHz, Single-Supply, Photodiode Amplifier Reference Design  TIPD176  Reference design 
High Speed, Linear Transimpedance Reference Design  TIDA-01350  Reference design 

TI Devices (6)

Part Number Name Product Family
MSP430FR2310  16MHz integrated analog microcontroller with 2KB FRAM, Op-Amp, TIA, Comparator w/ DAC, 10-bit ADC  Microcontrollers (MCU) 
MSP430FR2311  16MHz integrated analog microcontroller with 3.75KB FRAM, Op-Amp, TIA, Comparator w/ DAC, 10-bit ADC  Microcontrollers (MCU) 
MSP430FR2353  24MHz 105C integrated analog microcontroller with 16KB FRAM, Op-Amps/PGAs, 12-bit DACs, 12-bit ADC  Microcontrollers (MCU) 
MSP430FR2355  24MHz 105C integrated analog microcontroller with 32KB FRAM, Op-Amps/PGAs, 12-bit DACs, 12-bit ADC  Microcontrollers (MCU) 
OPA145  Single, 5.5 MHz, High Slew Rate, Low-Noise, Low-power, RRO Precision JFET Operational Amplifier   Operational amplifiers (op amps) 
OPA170  36V, microPower, Rail-to-Rail Output, General Purpose Op Amp in MicroPackages  Operational amplifiers (op amps) 

Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

If you have questions about quality, packaging, or ordering TI products visit our Support page.

Technical articles