This document describes the features and characteristics of the Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifier AD8628/AD8629/AD8630, including lowest auto-zero amplifier noise, low offset voltage, input offset drift, rail-to-rail input and output swing, 5V single-supply operation, high gain, CMRR, and PSRR, very low input bias current, low supply current, and short overload recovery time.