An instrumentation amplifier is a high-precision amplifier chip specifically designed for amplifying weak signals. It features high common-mode rejection ratio, high input impedance, and low temperature drift. It can effectively amplify millivolt or even microvolt-level signals while suppressing external interference, making it widely used in medical equipment, electronic scales, industrial measurement, and data acquisition systems.
For example, in pressure sensors, strain gauges, and temperature detection circuits, instrumentation amplifiers can accurately extract the sensor output signal, improving measurement accuracy. With the development of industrial automation and intelligent manufacturing, the importance of high-precision instrumentation amplifiers in industrial testing is continuously increasing.
