The MCP3221A5T-E/OT is a successive approximation A/D Converter with 12-bit resolution. This device provides one single-ended input with very low power consumption. Based on an advanced CMOS technology the MCP3221 provides a low maximum conversion current and standby current of 250 and 1µA respectively. Low current consumption make this device ideal for battery-powered and remote data acquisition applications. Communication to the MCP3221 is performed using a 2-wire I²C compatible interface.