This data sheet describes the ADS1224's features, including 240SPS data rate, 4MHz clock, 20-bit effective resolution, four differential channels input multiplexer, pin-selectable, high-impedance input buffer, ±5V differential input range, 0.0003% INL (typ), 0.0015% INL (max), self-calibrating, simple 2-wire serial interface, on-chip temperature sensor, single conversions with standby mode, low current consumption: 300µA, analog supply: 2.7V to 5.5V, digital supply: 2.7V to 5.5V.