The DEM-OPA-RUN-EVM can be configured to have either amplifier channels in inverting or non-inverting configurations as long as the appropriate resistors are populated. Additionally the EVM features a second feedback loop with a resistor and capacitor footprints (R1, R14, C1, and C8) that can be isolated from the output with a series resistor (R8 and R19). This second feedback loop can be used for several purposes. The second loop can be connected purely in parallel with the first loop to add filtering or capacitively coupled second gain resistor. Alternatively the primary feedback loops can be left open (R2 and R15) and the secondary feedback loop can be used to allow for series output resistance within the loop. Typically this is done to add a small amount of resistive isolation to an amplifiers output without affecting the desired output voltage when driving a resistive load.

Figure 5-1 shows the amplifiers in basic non-inverting unity gain configurations with 49.9 Ω series output loads.