Description
Preliminary Technical Data Integrated Precision Battery Sensor For Automotive ADuC7030/ADuC7033 .
19 Theory of Operation.
Features
* High precision ADCs Dual channel, simultaneous sampling, 16-bit Σ∆ ADCs Programmable ADC throughput from 1 Hz to 8 kHz On-chip 5ppm/°C voltage reference Current channel Fully differential, buffered Input Programmable gain from 1 to 512 ADC input range:
* 200 mV to +300 mV Digital comparators,
Applications
* Battery sensing/management for automotive systems
FUNCTIONAL BLOCK DIAGRAM
TCK TDI TDO NTRST TMS
IIN+ IIN
* VBAT
PRECISION ANALOG ACQUISITION
PGA
16-BIT Σ-∆ ADC
ADuC7030/ADuC7033
2.6V LDO PSM POR
MEMORY 32KB FLASH
4KB RAM
RESET
VTEMP GND_SW
VREF
RESULT
DIGITAL
ACCUMULATOR COMPARA