An Instrumentation Amplifier is a type of electronic amplifier designed to amplify low-level signals while rejecting noise and interference. It typically consists of three operational amplifiers (op-amps) and is known for its high input impedance and excellent common-mode rejection ratio (CMRR). This makes it ideal for applications where precise measurements are required, such as in medical devices and sensor signal processing. These amplifiers are commonly used in medical instrumentation, strain gauge measurements, and data acquisition systems. Their ability to maintain accuracy and stability in the presence of noise makes them essential in environments where signal integrity is critical.