I2C four channel photodiode readout

Board consists of 4 transimpedance amplifiers and a 4 channel ADC with I²C interface.

Supply voltage: 3.3V

ADC: 12bit ADS1105, default address 0x48

Transimpedance gain: 0.5V / µA

Connectors: JST PH2 for photodiodes and JST PH4 for I²C

Designed and assembled in Espoo, Finland