Integrated, Precision Battery Sensor for Automotive

The ADuC7039 is a complete system solution for battery monitoring in 12 V automotive applications. This device integrates all of the required features to precisely and intelligently monitor, process, and diagnose 12 V battery parameters including battery current, voltage, and temperature over a wide range of operating conditions.

APPLICATIONS

* Battery sensing/management for automotive systems

* High precision ADC

* Dual channel, simultaneous sampling, 16-bit Σ-Δ ADCs

* Programmable ADC throughput from 10 Hz to 1 kHz

* On-chip 5 ppm/ºC voltage reference

* Current channel

Fully differential, buffered input

Programmable gain

ADC input range: −200 mV to +300 mV

Digital comparator with current accumulator feature

* Voltage channel

Buffered, on-chip attenuator for 12 V battery input