The RS8538, RS8539 series of CMOS operational amplifiers use auto-zero techniques to simultaneously provide very low offset voltage (5μV max) and near zero drift over time and temperature. This family of amplifiers has ultralow noise, offset and power. This miniature, high-precision operational amplifiers offer high input impedance and rail-to-rail input and rail-to-rail output swing. With high gain-bandwidth product of 1.6MHz and slew rate of 0.7V/μs. Single or dual supplies as low as +2.5V (±1.25V) and up to +5.5V (±2.75V) may be used. The RS8538/RS8539 are specified for the extended industrial and automotive temperature range (-40°C to 125°C). The RS8538 single amplifier is available in 5-lead SOT23, and 8-lead SOP packages, The RS8539 dual amplifier is available in 8-lead SOP a