ADUCM331WDCPZ-RL | Automotive Precision Measurement MCU | 20-Bit ADC SoC

Product Overview

     The ADUCM331WDCPZ-RL is an automotive-qualified precision measurement microcontroller from Analog Devices, combining a 32-bit ARM® Cortex-M3 core with dual simultaneous 20-bit Σ-Δ ADCs, programmable gain amplifiers, and an on-chip precision reference. Designed for accurate measurement of voltage, current, and temperature, it enables highly integrated embedded solutions for battery monitoring, industrial sensing, and power system supervision. With on-chip Flash, EEPROM, SRAM, and standard digital interfaces, it reduces BOM cost while maintaining high accuracy and robustness in harsh environments.

Key Features

• 32-bit ARM® Cortex-M3 MCU (system clock ~16 MHz class)
• Dual simultaneous 20-bit Σ-Δ ADCs with programmable gain
• Integrated precision voltage reference
• High accuracy for voltage, current, and temperature sensing
• On-chip memory: Flash, SRAM, and EEPROM
• Digital interfaces such as SPI and GPIO (variant-dependent)
• Wide operating supply suitable for automotive battery systems
• Built-in watchdog, power-on reset, and timers
• AEC-Q100 automotive-qualified
• Operating temperature suitable for harsh environments
• Compact LFCSP package, tape & reel (RL)

Applications

• Automotive battery monitoring and auxiliary BMS functions
• Precision voltage/current/temperature measurement
• Industrial and energy system sensing
• Embedded monitoring and control nodes
• Power system supervision and diagnostics
• Automotive and industrial sensor front-ends

Electrical Characteristics