The OPA4322AIPW is a quad low noise CMOS Operational Amplifier with rail-to-rail input and output. It is optimized for low-power and single-supply applications. Specified over a wide supply range of 1.8 to 5.5V, the low quiescent current of only 1.5mA per channel makes this device well-suited for power-sensitive applications. The combination of very low noise (8.5nV/√Hz at 1kHz), high gain-bandwidth (20MHz) and fast slew rate (10V/µs) make the OPA322 family ideal for a wide range of applications, including signal conditioning and sensor amplification requiring high gains.