Mikroe ADC 19 Click features the Texas Instruments ADC122S101 low-power two-channel CMOS 12-bit analog-to-digital converter. This SPI configurable analog-to-digital converter (ADC) is fully specified over a sample rate range of 500ksps to 1Msps. It offers high reliability and performance. The converter is based on a successive-approximation register architecture with an internal track-and-hold circuit configurable to accept one or two input signals at its input channels.