This Analog to Digital Converter Board is capable of reading 0-20V input voltage. It has an on-board Amplifier for signal conditioning. This Board uses three MCP3428 to read the amplified Signal. The MCP3428 is a 4-Channel Analog to Digital Converter with 16-Bit resolution, ideally suited for low-speed high-resolution sensor monitoring. The MCP3428 is capable of reading analog voltages at 15 samples per second with 16-Bit resolution or 240 samples per second at 12-bit resolution. The MCP3428 has an x1, x2, x4, x8 programmable gain amplifier, making it an ideal choice for monitoring extremely low-voltage sensors. All 12 channels are capable of monitoring a full-scale range of 0-20V. Up to 8 MCP3428 devices are capable of sharing a single I2C communication port, using three floating address inputs.

This 0 to 20V Analog to digital Converter board has 3 MCP3428 on-board. To use all 3 MCP3428 at the same time you will need to set them each up at a different address. This Analog to Digital Converter board has on-board jumpers to select the different addresses for both of the MCP3428.

Note: Set MCP3428 gain at one to read 0-20V Signal and set the gain at two to read 0-5V Signal.

Voltage = Raw_ADC*0.000612 ( to read 0-20V DC)