The OPA4251UA is a quad MicroPower? Operational Amplifier designed for battery-powered applications. In addition to very low power consumption (25μA), this amplifier feature low offset voltage, rail-to-rail output swing, high common-mode rejection and high open-loop gain. The OPA251 series is optimized for high power supplies. The input common-mode voltage range extends 200mV below the negative supply-ideal for single-supply applications. It is unity-gain stable and can drive large capacitive loads. Special design considerations assure that these products are easy to use. High performance is maintained as the amplifiers swing to their specified limits. Because the initial offset voltage (±250μV maximum) is so low, user adjustment is usually not required.
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