Transimpedance Amplifier calculator
Feedback resistor for desired output voltage from photodiode current.
Category: Detectors
Formula: Rf = Vout / (R·P)
Inputs
| Input | Parameter | Unit | Default |
|---|---|---|---|
| Optical power | P | µW | 1 |
| Responsivity | R | A/W | 0.5 |
| Target Vout | Vout | V | 2 |
Result with the default inputs
- Photocurrent: 0.5 µA
- Rf: 4.0000e+6 Ω
Open it with your own values: put each input in the address as a parameter, for example /calculators/transimpedance-amplifier?P=1. A unit other than the listed one goes in <parameter>_unit.
Read more: Wikipedia: Transimpedance amplifier