7.1.1.2 Voltage

The bq3060 updates the individual series cell voltages at one second intervals. The internal ADC of the bq3060 measures the voltage, scales, and offsets, and calibrates it appropriately. To ensure an accurate differential voltage sensing, the IC ground should be connected directly to the most negative terminal of the battery stack, not to the positive side of the sense resistor. This minimizes the voltage drop across the PCB trace.