Photodiode Signal & Noise Calculator

Calculate photocurrent, output voltage, bandwidth, noise, and NEP for load-resistor and TIA readout configurations.

Load Resistor Mode
Signal
Photocurrent
58.300µA
Output voltage
2.915mV
Conversion gain
29.150V/W
Bandwidth
3 dB bandwidth
318.3MHz
Rise time
1.100ns
Noise (per √Hz)
Shot noise
4.32e-12A/√Hz
Thermal noise
1.81e-11A/√Hz
Total noise
1.87e-11A/√Hz
NEP
3.20e-11W/√Hz
Abridged Optics — Photodiode Signal & Noise Calculator v1.0I_ph = R·P. f_RC = 1/(2πR_LC_j). f_TIA = √(GBP/(2πR_fC_in)).

All information, equations, and calculations have been compiled and verified to the best of our ability. For mission-critical applications, we recommend independent verification of all values. If you find an error, please let us know.