AS2333Q Zero-Drift Operational Amplifier (Op-Amp) Diodes Incorporated AS2333Q Zero-Drift Operational Amplifier is a dual CMOS op-amp providing ultra-low input offset voltage (8μV typical) and near zero-drift over time and temperature. This technique eliminates 1/f noise and the cross-over distortion presented in most rail-to-rail input operational amplifiers. The high-precision, low quiescent current amplifier offers high-impedance inputs that have a common-mode range of 100mV beyond the rails and rail-to-rail output that swings within 50mV of the rails. Single or dual supplies as low as 1.8V (±0.9V) and up to 5.5V (±2.75V) can be used.