ADC2 click is a mikroBUS add-on board for analogue signal applications where high accuracy is required. The Microchip MCP3551 is a Low-Power, Single-Channel 22-Bit Delta-Sigma Analogue-to-Digital Converter (ADC) with Automatic Internal Offset and Gain Calibration, accessed through the SPI bus.

Input and Output voltage screw terminals
High precision with unadjusted error of less than 10 ppm
Output noise of 2.5 μV RMS
Voltage reference selection jumper for 4.096 V or power supply voltage
3.3 V or 5 V power supply on mikroBUS socket
Dimensions 28.6 x 25.4 mm

Click board comes with the header strips soldered.