Differential OpAmps

Differential op-amps, or differential amplifiers, are a type of operational amplifier that are specifically designed to amplify the difference between two input signals. They are characterized by their high common-mode rejection ratio, which allows them to reject any signals that are common to both inputs and only amplify the difference between the two signals. Differential op-amps are commonly used in RF circuits to amplify small signals from sensors or other transducers, such as strain gauges, thermocouples, or pressure sensors. They are also used in many other types of measurement and instrumentation systems, such as data acquisition systems, test and measurement equipment, and medical imaging systems. Differential op-amps are typically used in combination with other components, such as resistors and capacitors, to create a complete circuit.