The DIO29001 is a rail-to-rail CMOS operational amplifiers with an ultra-low offset. Features include wide input common-mode voltage range and broad output voltage swing with operating supply voltage from 1.65 V to 5.5 V. Products are fully specified over the extended -40 to +125°C temperature range. The DIO29001 provides a 400 kHz bandwidth, consuming an ultra-low current of 40 µA. Very low input bias currents of 10 pA make them ideal for integrators, photodiode amplifiers, and piezoelectric sensors.