DESCRIPTION The RS8531/RS8532 are ultralow noise, zero-drift operational amplifiers featuring rail-to-rail input and output swing. With an offset voltage of ±1.2 μV, offset voltage drift of ±0.1 μV/°C, and typical noise of 0.15 μVPP (0.1Hz to 10Hz), the RS8531/RS8532 are well suited for applications in which error sources cannot be tolerated. The RS8531/RS8532 have a wide operating supply range of 2.2 V to 5.5 V, high gain, and excellent CMRR and PSRR specifications, which make it ideal for applications that require precision amplification of low level signals, such as position and pressure sensors, strain gages, and medical instrumentation. The RS8531/RS8532 are specified over the extended industrial temperature range (−40°C to +125°C). The RS8531 is available in SOT23-5 and MSOP8 packages. The RS8532 is available in SOP8 and MSOP8 packages.