OPAx991 40-V Rail-to-Rail Input/Output, Low Offset Voltage, Low Noise Op Amp 1 Features • Low offset voltage: ±125 µV • Low offset voltage drift: ±0.3 µV/°C • Low noise: 10.8 nV/√ Hz at 1 kHz • High common-mode rejection: 130 dB • Low bias current: ±10 pA • Rail-to-rail input and output • Wide bandwidth: 4.5 MHz GBW • High slew rate: 21 V/µs • High capacitive load drive: 1 nF • MUX-friendly/comp..