P-9202-4 Analog Current to Voltage Amplifier

Silicon, Germanium and Indium Gallium Arsenide Photodiodes offer best linearity correlation of light input to their electrical signal when are operated in photovoltaic mode. Simulation of a real short circuit at a signal amplifier input requires a current to voltage conversion amplifier with very low offset voltage independent of the selected gain range. The P-9202 Amplifier equipped with selected low noise feedback resisters and gold contact relays assembled in a metal housing meet this criteria. The interface for remote control selection of the gain range is isolated by an optocoupler. The P-9202-4 model is a fast amplifier with a 8-step switchable sensitivity range from 300 nA/V to 1 mA/V and a nearly constant slew-rate of 1 µs in all gain ranges. Photodiodes can be operated in photovoltaic or photodiode mode (-5 V bias voltage). Useful in applications requiring high bandwidth up to 330 kHz or short 1 µs rise time. The device is operated with a 24VDC power supply.