ADUCM330 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

ADUCM330
Manufacturer

ADI
ChipWorker Part#

CW760399450
Description

Integrated, Precision Battery Sensor for Automotive Systems
Documentation

Datasheet

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ADUCM330 Specifications

Attribute	Attribute Value

Part Number	ADUCM330
Manufacturer	ADI
ChipWorker Part#	CW760399450
Documentation	Datasheet
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Product Lifecycle Status	Recommended for New Designs

Product Description

Product Details
The ADuCM330 is a fully integrated, 8 kSPS, data acquisition system that incorporates dual, high performance multichannel sigma-delta (Σ-Δ) ADCs, 32-bit ARM® Cortex™-M3 processor and flash. The ADuCM330 has 96 kB program flash and 4 kB data flash. The ADuCM330 is a complete system solution for battery monitoring in 12 V automotive applications. The ADuCM330 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.
Minimizing external system components, the device is powered directly from a 12 V battery. On-chip, low dropout (LDO) regulators generate the supply voltage for two integrated Σ-Δ ADCs. The ADCs precisely measure battery current, voltage, and temperature to characterize the state of the health and the charge of the car battery.
The device operates from an on-chip, 16.384 MHz high frequency oscillator that supplies the system clock. This clock is routed through a programmable clock divider from which the core clock operating frequency is generated. The device also contains a 32 kHz oscillator for low power operation.
The analog subsystem consists of an ADC with a programmable gain amplifier (PGA) that allows the monitoring of various current and voltage ranges. It also includes a precision reference on chip.
The ADuCM330 integrates a range of on-chip peripherals that can be configured under core software control as required in the application. These peripherals include a SPI serial input/output communication controller, six GPIO pins, one general-purpose timer, a wake-up timer, and a watchdog timer.
The ADuCM330 is specifically designed to operate in battery-powered applications where low power operation is critical. The microcontroller core can be configured in normal operating mode, resulting in an overall system current consumption of <18.5 mA when all peripherals are active. The device can also be configured in a number of low power operating modes under direct program control, consuming <100 µA. The ADuCM330 also includes a LIN physical interface for single wire, high voltage communications in automotive environments.
The device operates from an external 3.6 V to 18 V (on VDD, Pin 26) voltage supply and is specified over the −40°C to +115°C temperature range, with additional typical specifications at +125°C.
**APPLICATIONS **
Battery sensing/management for automotive and light mobility vehicles
Lead-acid battery measurement for power supplies in industrial and medical domains
### Features and Benefits
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
LIN 2.2-compatible slave, 100 kb fast download option
SAE J-2602 compatible slave
Low electromagnetic emissions (EME)
High electromagnetic immunity (EMI)
See data sheet for additional features

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