The ADS1112 is a precision, continuously self-calibrating Analog-to-Digital (A/D) converter with two differential or three single-ended channels and up to 16 bits of resolution in the small MSOP-10 and leadless QFN-style (small-outline, no-lead) packages。 The onboard 2.048V reference provides an input range of ±2.048V differentially。 The ADS1112 uses an I2C-compatible serial interface and has two address pins that allow a user to select one of the eight I2C Slave addresses。The ADS1112 operates from a single power supply ranging from 2.7V to 5.5V。