Design a non-inverting amplifier stage with high input impedance.
The non-inverting configuration presents the op-amp’s own very high input impedance to the source, making it ideal for buffering. Its minimum gain is one, which is the voltage-follower case. Voltage followers are used to drive low-impedance loads from high-impedance sources without loading them, which a resistive divider cannot do.
Non Inverting Op Amp
A = 1 + R_f ÷ R_g
A = 1 + R_f ÷ R_g The non-inverting configuration presents the op-amp’s own very high input impedance to the source, making it ideal for buffering. Its minimum gain is one, which is the voltage-follower case.
Voltage followers are used to drive low-impedance loads from high-impedance sources without loading them, which a resistive divider cannot do.
This calculator takes 4 inputs: Ground-side resistor, Feedback resistor, Input voltage, Supply rail. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.