The INA821IDR is a low-power, low-noise, precision instrumentation amplifier with a high bandwidth of 4.7MHz, low noise of 7nV/ Hz, and accuracy of 35 V, packaged in a tiny 8-pin SOIC package -40 to 125 manufactured by Texas Instruments. It has a gain-bandwidth product of 4.7MHz and a high common-mode rejection ratio of 120 dB. It is extremely suitable for use in applications requiring low-noise operation, as it has a low voltage noise density of 7 nV/ Hz. It can be used for amplification of signals from strain gauges, thermocouples, piezoelectric transducers and signal conditioning circuitry applications. It also has excellent board layout techniques to reduce the risk of power supply noise. The INA821IDR has a low-power single-supply operation from 2.7 V to 36 V and rail-to-rail outputs for single- or dual-channel amplifier applications.