AD8021AR-REEL7

The AD8021AR-REEL7 is a precision, low-power instrumentation amplifier that offers optimized performance for measurement and signal conditioning tasks. This device employs a wide range of features to provide a compact, easy-to-use solution for most applications, including high common-mode rejection, low noise, and low power consumption. The input and output stages are fully differential and are capable of operating with supply voltages ranging from 2.7 V to 5.5 V. The AD8021AR-REEL7 is available in the SOIC package.

Application Field

The AD8021AR-REEL7 is commonly used in medical device designs, instrumentation amplifiers, and automotive applications, such as airbag and vehicle communication systems. The device is also used in various industrial control, test, and measurement applications. It can also be used in applications requiring low-power Consumption and tigh common-mode rejection ratios such as precision industrial process control and data acquisition.

Working Principle

The instrumentation amplifier consists of a number of differential amplifier stages. The input stage is a differential amplifier with two inputs; differential input signal and common-mode signal. The common mode signal is routed to several nested differential stages in which the differential gain of the stage is controlled by the gain-set resistors. The output of each stage is then routed to a balancing amplifier and then combined with the output of the common-mode compensation circuit. Finally, the output is then routed to a unity-gain, low-noise amplifier.

Conclusion

The AD8021AR-REEL7 is an instrumentation amplifier that offers optimized performance for a variety of measurement and signal conditioning tasks. Its low power consumption, high common-mode rejection, and low noise make the device ideal for a range of applications in medical, automotive, industrial control, test, and measurement applications.