Non Inverting Op Amp Gain Less Than 1. The gain provided by the inverting amplifier is the ratio of the resistances. The output voltage exactly follows the input voltage both in sign and magnitude.
This is because the inverting gain equation is g rf rg while the noninverting gain equation is g rf rg 1. Two resistors to provide the required feedback. When the resistor r f is set as equal to zero means this is shorted or resistor r1 is opened or open circuit so resistor r1 becomes.
The gain provided by the inverting amplifier is the ratio of the resistances.
Whereas in the non inverting amplifier the inverting terminal of the op amp is grounded. The gain provided by the inverting amplifier is the ratio of the resistances. This is because the inverting gain equation is g rf rg while the noninverting gain equation is g rf rg 1. Therefore the assumption is the amplifier must be configured as an inverter.
