Design tool
CIRCUIT0020
Transimpedance Amplifier Circuit
CIRCUIT0020
Overview
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
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Downloads
Supported products & hardware
General-purpose op amps
MSP430 microcontrollers
Evaluation board
Technical documentation
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| Type | Title | Date | |
|---|---|---|---|
| * | Circuit design | Transimpedance amplifier circuit with MSP430 smart analog combo (Rev. A) | Mar. 06, 2020 |
| * | Circuit design | Transimpedance amplifier circuit. (Rev. A) | Feb. 01, 2019 |
| Application note | How to Use the Smart Analog Combo in MSP430™ MCUs (Rev. A) | Oct. 24, 2019 | |
| Technical article | Transimpedance amplifier designs for high-performance, cost-sensitive smoke detector applications | Aug. 10, 2017 | |
| Application note | Transimpedance Amplifiers (TIA): Choosing the Best Amplifier for the job (Rev. A) | May 16, 2017 | |
| Technical article | Designing high-performance, cost-sensitive transimpedance op-amp circuits | Jun. 20, 2016 | |
| Technical article | Part III - What op amp bandwidth do I need? (Transimpedance Amplifiers) | May 08, 2014 | |
| Technical article | Part II - What op amp bandwidth do I need? (Transimpedance Amplifiers) | May 07, 2014 | |
| Analog Design Journal | 4Q 2012 Issue Analog Applications Journal | Sep. 25, 2012 |
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