Op Amp Inverter Buffer. The output is connected to its inverting input and the signal source is connected to the non inverting input. Vin comes from a dac in a microcontroller and this circuit produces a vout which is negative vin.
Vin comes from a dac in a microcontroller and this circuit produces a vout which is negative vin. Op amps are popular for its versatility as they can be configured in many ways and can be used in different aspects. This arrangement is called an op amp follower or buffer.
However the buffer is an extremely useful circuit since it helps to solve many impedance issues.
Op amp short for operational amplifier is the backbone of analog electronics. The output is connected to its inverting input and the signal source is connected to the non inverting input. 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. The buffer has an output that exactly mirrors the input assuming it s within range of the voltage rails so it looks kind of useless at first.
