Subtractor Circuit Op Amp. Let us assume that the non inverting terminal is at potential v. A differential amplifier multiplies the difference between two voltages.
Let us consider the above op amp circuit. In this circuit we are going to apply voltages to operational amplifiers from both inverting terminal and non inverting terminals. This opamp circuit is known as a difference amplifier sometimes called a subtractor.
There s a special op amp circuit a differential amplifier or subtractor that is actually a combination of a noninverting amplifier and inverting amplifier.
An operational amplifier often op amp or opamp is a dc coupled high gain electronic voltage amplifier with a differential input and usually a single ended output. I have tried using op amp to try a voltage subtractor circuit in order to monitor the voltage difference between the cells. Let us consider the above op amp circuit. A difference amplifier or op amp subtractor is a specially designed op amp based amplifier circuit which amplifies the difference between two input signals and rejects any signals common to both inputs.
