Jännitteenseurantapotentiaalia
Jännitteenseurantapotentiaalia, also known as voltage-following potential or voltage follower, is a circuit configuration that replicates the input voltage at its output. It is a fundamental building block in analog electronics, particularly when using operational amplifiers (op-amps). The primary characteristic of a voltage follower is its unity voltage gain, meaning the output voltage is precisely equal to the input voltage, ignoring minor imperfections in the active component.
The circuit is typically implemented using an op-amp in a non-inverting configuration with a direct feedback
The key advantages of a voltage follower are its very high input impedance and very low output