Operational Amplifier Voltage Follower Circuit Diagram. Explanation of voltage transfer curve of op amp. This means that the op amp does not provide any amplification to the signal.

With the differential amplifier input stage v 2 which equals v o must equal v i. A voltage buffer can be realized using opamp bjt or mosfet. We already discussed about it in our non inverting operational amplifier tutorial here we will build.

Voltage follower is simply a circuit in which output follows the input means output voltage remains same as input voltage.

Voltage follower using transistor bjt is shown in fig 3. It is good to start learning everything from the basic. A voltage follower also called a unity gain amplifier a buffer amplifier and an isolation amplifier is a op amp circuit which has a voltage gain of 1. So in this article we are going to know the basics of op amp using its block diagram.