9.2 Non-Inverting PGA Analog Simulation with MPLAB® Mindi™
In MPLAB® Mindi™, open Non_Inverting_PGA(AVR_DB).wxsch schematic from the GitHub repository.
The circuit shown in the left half of Figure 9-2 is driven by a 50 Hz, 128 mVPP sinusoidal signal source with 128 mV DC offset. The op amp is powered by a 3.3V battery source.
Simulate by selecting; Simulator → Run Schematic or press Function Key F9. The resulting simulation output graph is shown in the right half of Figure 9-2. It can be noticed that the output signal (in red) is twice the input signal (in green) while keeping the signal in phase. It is precisely what would be expected from a gain amplifier configuration.