The following schematic shows the Photovoltaic Transimpedance Amplifier Circuit Diagram. This design combines two Intersil X9258T digitally controlled potentiometers with an AD822 low noise dual op amp to create a flexible, digitally calibrated, wide dynamic range transimpedance amplifier topology that can be used with virtually any photovoltaic detector technology. The amplifier output is given by:
Vo = Is(1MΩ) ((1+P1)/(256-P1))
Where P1 is the 8-bit (0 to 255) digital value written to DCP1. For more detail information on Photovoltaic Transimpedance Amplifier Circuit Diagram, download the following file.