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ADuCM331

Analog Devices
Part Number ADuCM331
Manufacturer Analog Devices
Description Precision Battery Sensor
Published Aug 5, 2019
Detailed Description Data Sheet Integrated, Precision Battery Sensor for Automotive Systems ADuCM330/ADuCM331 FEATURES Memory High precis...
Datasheet PDF File ADuCM331 PDF File

ADuCM331
ADuCM331

Overview
Data Sheet Integrated, Precision Battery Sensor for Automotive Systems ADuCM330/ADuCM331 FEATURES Memory High precision analog-to-digital converters (ADCs) Dual channel, simultaneous sampling I-ADC 20-bit Σ-Δ (minimizes range switching) VADC/TADC 20-bit Σ-Δ Programmable ADC conversion rate from 1 Hz to 8 kHz On-chip ±5 ppm/°C voltage reference Current channel Fully differential, buffered input Programmable gain (from 4 to 512) ADC absolute input range: −200 mV to +300 mV Digital comparator with current accumulator feature Voltage channel Buffered, on-chip attenuator for 12 V battery input Temperature channel External and on-chip temperature sensor options Microcontroller ARM Cortex-M3 32-bit processor 16.
384 MHz precision oscillator with 1% accuracy Serial wire download (SWD) port supporting code download and debug Automotive qualified integrated local interconnect network (LIN) transceiver 96 kB (ADuCM330)/128 kB (ADuCM331) Flash/EE memory, ECC 6 kB SRAM, ECC 4 kB data Flash/EE memory, ECC 10,000 cycle Flash/EE endurance 20 year Flash/EE retention In circuit download via SWD and LIN On-chip peripherals Serial port interface (SPI) General-purpose input/output (GPIO) port General-purpose timer Wake-up timer Watchdog timer On-chip, power-on reset Power Operates directly from 12 V battery supply Power consumption, 8 mA typical (16 MHz) Low power monitor mode Package and temperature range 32-lead, 6 mm × 6 mm LFCSP Fully specified for −40°C to +115°C operation; additional specifications for 115°C to 125°C Qualified for automotive applications LIN 2.
2-compatible slave, 100 kb fast download option SAE J-2602-compatible slave Low electromagnetic emissions (EME) High electromagnetic immunity (EMI) APPLICATIONS Battery sensing/management for automotive and light mobility vehicles Lead acid battery measurement for power supplies in industrial and medical domains FUNCTIONAL BLOCK DIAGRAM SWDIO SWCLK IIN+ IIN– VBAT VTEMP GND_SW PRECISION ANALOG ACQUISITION PGA BU...


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