SBOS973A June 2019 – September 2019 OPA2834
PRODUCTION DATA.
To facilitate testing with common lab equipment, the OPA2834EVM (see the OPA2837DGK Evaluation Module user guide) is built to allow split-supply operation. 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 have inputs and outputs with a ground reference.
Figure 50 shows a simple noninverting configuration analogous to Figure 45 with a ±2.5-V supply and the reference voltage (VREF) equal to ground. The input and output swing symmetrically around ground. For ease of use, split supplies are preferred in systems where signals swing around ground.