The INA321EA/250G4 is a CMOS Instrumentation Amplifier that offers wide-range single-supply, as well as bipolar-supply operation. The rail-to-rail output INA321 family provides low-noise amplification of differential signals with micropower current consumption of 40μA. When shutdown, the amplifier has a quiescent current of less than 1μA. Returning to normal operations within nanoseconds, the shutdown feature makes the amplifier optimal for low-power battery or multiplexing applications. Configured internally for 5V/V gain, the amplifier offers exceptional flexibility with user-programmable external gain resistors. The amplifier reduces common-mode error over frequency and with CMRR remaining high up to 3kHz, line noise and line harmonics are rejected. The low-power design does not compromise on bandwidth or slew rate, making the amplifier ideal for driving sample Analogue-to-digital (A/D) converters as well as general-purpose applications.