Unity Gain Op Amp Buffer. This means that the op amp does not provide any amplification to the signal. An op amp voltage buffer mirrors a voltage from a high impedance input to a low impedance output.
The lt1010 is a fast unity gain buffer that can increase the output capability of existing ic op amps by more than an order of magnitude. Thus it has a gain of one unity and does not amplify the incoming signal. A voltage follower is also known as a unity gain amplifier a voltage buffer or an isolation amplifier.
In a voltage follower circuit the output voltage is equal to the input voltage.
The output voltage signal is the same as the input voltage. If you are wanting a unity gain inverting op amp in practice using a general purpose device like an lm324 just calculate the resistor values to give calculated gain g 1 009 for example rin 218k rf 220k. The voltage follower or unity gain buffer is a special and very useful type of non inverting amplifier circuit that is commonly used in electronics to isolated circuits from each other especially in high order state variable or sallen key type active filters to separate one filter stage from the other. This easy to use part makes fast amplifiers less sensitive to capacitive loading and reduces thermal feedback in precision dc amplifiers.
