SBAU413A october 2022 – may 2023
The ADS131B26-Q1 features two multiplexed, 16-bit ADC channels that are intended to measure shunt temperature using external temperature sensors and other voltages in the system. For demonstration purposes, the EVM includes multiple resistor divider ratios to support unipolar and bipolar single-ended and pseudo-differential input measurements.
The V7A and V7B signals can serve as the common-mode voltage when measuring V5A and V6A or V5B and V6B, respectively. Alternatively, an external common-mode voltage can be generated from the analog supply voltage (ADC_AVDD) by installing the optional external VCM circuit shown in Figure 2-3. Figure 2-3 shows the input connections and resistor divider circuits for ADC2A.