ADX3202AQFN32

ADX320/ADX3202 is a single/dual-channel, simultaneous sampling, 24-bit, Δ-Σ (Delta-Sigma) analog-to-digital converter (ADC) that offers wide dynamic range, low power consumption, and buffered analog inputs, making it highly suitable for automotive battery management systems (BMS). The ADC inputs can be directly connected to shunt resistors for bidirectional battery current measurement, resistor divider networks for high-voltage measurements, or temperature sensors such as thermistors or analog output temperature sensors. Each ADC channel can be independently configured based on the sensor input. Low-noise, programmable gain amplifiers (PGAs) provide gains from 1 to 12 to amplify low-level signals. The device features a global chopping mode to eliminate offset drift over temperature and time. Moreover, the device integrates offset and gain calibration registers to help eliminate signal chain errors. It also incorporates a low-drift 2.4V or 4.2V reference and a precision oscillator, reducing the printed circuit board (PCB) area. Optional cyclic redundancy check (CRC) on data input, data output, and register map maintains communication integrity.