Analog Devices Inc.

Integrated, Precision Battery Sensor for Automotive Systems with Functional Safety Features: High precision ADCs Dual-channel, simultaneous sampling IADC 20-bit Σ-Δ (minimizes range switching) VADC/TADC 20-bit Σ-Δ Programmable ADC conversion rate from 4 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 (high precision) Serial wire debug (SWD) port supporting code download and debug Automotive qualified integrated LIN transceiver LIN 2.2-compatible slave, 100 kbaud fast download option SAE J2602-compatible slave Low electromagnetic emissions High electromagnetic immunity Memory 96 kB programmable Flash/EE memory (ADuCM330WFS), ECC 128 kB programmable Flash/EE memory (ADuCM331WFS), ECC 10 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 SPI 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) at TA = −40°C to +115°C Low power monitor mode Package and temperature range 6 mm × 6 mm, 32-lead LFCSP Fully specified for −40°C to +115°C operation; additional specifications for 115°C to 125°C AEC-Q100 qualified for automotive applications Developed for use in ISO 26262 applications for ASIL Capability B

$20.38