ITEM NAME:16 Bit I2C ADS1115 Module ADC 4 channel with PGA for Raspberry Pi Ec.1PCS ADS1115 Module. Interface Type: I2C. ADC Bit rate: 16 Bit. Channels: 4 Channel AN0 AN1 AN2 AN3 or 2 differential inputs. Size:18mm 28mm. -0.256V ~ + 0.256V, -0.512V ~ + 0.512V, -1.024V ~ + 1.024V.