Op Amp Inverter Buffer. Op amps are popular for its versatility as they can be configured in many ways and can be used in different aspects. The output is connected to its inverting input and the signal source is connected to the non inverting input.
An operational amplifier is a dc coupled electronic component which amplifies voltage from a differential input using resistor feedback. So far so good. This arrangement is called an op amp follower or buffer.
You can get resistors with very fine accuracy and stability at an equally impressive price or you can get networks with matched in value and in temperature coefficient where the absolute accuracy may not be so impressive but the ratio is tightly controlled.
Although its voltage gain is 1 or unity it has high current gain high input impedance and low output impedance. No there is no way to make an inverting buffer with just an op amp that does not depend on the resistor values. The op amp is supplied by positive and negative rails not shown here. An operational amplifier is a dc coupled electronic component which amplifies voltage from a differential input using resistor feedback.
