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.
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
Key Document
-
Transimpedance Amplifier Circuit
(ZIP 9 KB)
21 Feb 2018
- Transimpedance amplifier circuit with MSP430 smart analog combo (Rev. A)
(PDF 450 KB)
06 Mar 2020
- Transimpedance amplifier circuit. (Rev. A)
(PDF 141 KB)
01 Feb 2019
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
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Technical documentation
Application notes (5)
| Title | Type | Size (KB) | Date |
|---|---|---|---|
| 450 | 06 Mar 2020 | ||
| 440 | 24 Oct 2019 | ||
| 141 | 01 Feb 2019 | ||
| 153 | 16 May 2017 | ||
| 3268 | 25 Sep 2012 |
Design files (1)
| Title | Type | Size (KB) | Date |
| ZIP | 9 | 21 Feb 2018 |
Related Products
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) |
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