Input Modes
Single Input Inverting Single Input Non-Inverting Differential Input
SingleInputInverting.png
SingleInputNonInverting.png
DifferentialInput.png

In the inverting mode, the non-inverting input of the amplifier is grounded. An input signal is applied to the inverting input and the output signal is 180° out of phase with the input signal.

In the non-inverting mode, the inverting input of the amplifier is grounded. An input signal is applied to the non-inverting input and the output signal is in phase with the input signal.

In the differential input mode, the signal is applied to both of the input terminals. These signals have to be 180° out of phase and the output is going to be in phase with the non-inverting signal. In case the signals that are applied to both the inputs are in phase, there should be no output and that input signal is referred to as the common mode signal. In all three of these modes, the op-amps are shown in an open-loop configuration, i.e. the outputs do not feedback to the op-amp inputs.

  Return to Top

© 2024 Microchip Technology, Inc.
Notice: ARM and Cortex are the registered trademarks of ARM Limited in the EU and other countries.
Information contained on this site regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer's risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights.