LM359 Fast Photodiode Amplifier

Photo-diode can be used for high speed digital transmission, but you have to provide high speed signal conditioner for that purpose. The amplifier circuit shown in the schematic diagram below satisfy the high-speed requirement.

The circuit is based on current mode (Norton) operational amplifier, that’s why the response is faster than regular op-amp.  The frequency response of this circuit is higher than 10MHz. The DM7414 inverter gate at the output is employed to improve the rise time of the pulse, but you can discard it if you can accept a slower rise and fall time of LM359 (40 ns). [Circuit’s schematic diagram source: LM359 National Semiconductor Datasheet]