Inverting and Non-inverting OpAmps

In an inverting amplifier, the input voltage is connected through a resistor to the inverting terminal. Meanwhile, the non-inverting terminal is grounded and a feedback resistor is established between the inverting and output terminal, as depicted in Figure 1.

The inverting amplifier connects the input voltage through a resistor to the inverting terminal, grounds the non-inverting terminal, and has a feedback resistor between the inverting and output terminals.

By applying KCL and assuming the operational amplifier to be ideal, the expression for gain is determined.

Inverting amplifiers ...