Microcontroller

2.7 V to 3.6 V

1 µF to

10 F

µ

+

2 kW

5 W

1 F to

µ

10 F

µ

+

0.1 F

µ

ADS7828

REF

IN/

REF

OUT

CH0

V

DD

SDA

SCL

A0

A1

GND

CH1

CH2

CH3

CH4

CH5

CH6

CH7

COM

2 kW

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Folder

Sample &

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Technical

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ADS7828-Q1

SBAS456B – DECEMBER 2008 – REVISED JANUARY 2016

ADS7828-Q1 12-Bit 8-Channel Sampling Analog-to-Digital Converter

With I2C Interface

1 Features

3 Description

The ADS7828 is a single-supply low-power 12-bit

1

•

Qualified for Automotive Applications

data acquisition device that features a serial I2C

•

8-Channel Multiplexer

interface and an 8-channel multiplexer. The analog-

•

50-kHz Sampling Rate

to-digital converter (ADC) features a sample-and-hold

amplifier

and

internal

asynchronous

clock.

The

•

No Missing Codes

combination of an I2C serial 2-wire interface and

•

2.7 V to 5 V Operation

micropower consumption makes the ADS7828 ideal

•

Internal 2.5-V Reference

for applications requiring the ADC to be close to the

input source in remote locations and for applications

•

I2C Interface Supports Standard, Fast, and High-

requiring isolation. The ADS7828 is available in a

Speed Modes

TSSOP-16 package.

2 Applications

Device Information(1)

•

Automotive Head Units

PART NUMBER

PACKAGE

BODY SIZE (NOM)

•

Heads-Up Display (HUD)

ADS7828-Q1

TSSOP (16)

6.40 mm × 5.00 mm

•

Automotive Battery Management Systems

(1) For all available packages, see the orderable addendum at

•

Automotive On-Board Chargers

the end of the data sheet.

•

Voltage-Supply Monitoring

•

Isolated Data Acquisition

•

Transducer Interfaces

•

Battery-Operated Systems

•

Remote Data Acquisition

•

NOx Sensors

•

Ssot and Particulate Matter (PM) Sensors

•

Oxygen (O2, Lambda, A/F) Sensors

•

Ammonia (NH3) Sensors

•

Other Emissions and Gas Sensors

Simplified Schematic

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.