SBOS789C August 2017 – February 2020 OPA2810
To facilitate testing with common lab equipment, the OPA2810 can be configured to allow for split-supply operation (see the OPA2810DGK Evaluation Module). This configuration eases lab testing because the mid-point between the power rails is ground, and most signal generators, network analyzers, oscilloscopes, spectrum analyzers and other lab equipment reference the inputs and outputs to ground. Figure 64 shows the OPA2810 configured as a noninverting amplifier and Figure 65 shows the OPA2810 configured as an inverting amplifier. For split-supply operation referenced to ground, the power supplies VS+ and VS- are symmetrical around ground and VREF = GND. Split-supply operation is preferred in systems where the signals swing around ground because of the ease-of-use; however, the system requires two supply rails.