1 Features

1• Qualified for Automotive Applications

• 8-Channel Multiplexer

• 50-kHz Sampling Rate

• No Missing Codes

• 2.7 V to 5 V Operation

• Internal 2.5-V Reference

• I2C Interface Supports Standard, Fast, and High-

Speed Modes

2 Applications

• Automotive Head Units

• Heads-Up Display (HUD)

• Automotive Battery Management Systems

• Automotive On-Board Chargers

• 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

3 Description

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

data acquisition device that features a serial I2C interface and an 8-channel multiplexer. The analog-

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

amplifier and internal asynchronous clock. The

combination of an I2C serial 2-wire interface and micropower consumption makes the ADS7828 ideal

for applications requiring the ADC to be close to the

input source in remote locations and for applications

requiring isolation. The ADS7828 is available in a

TSSOP-16 package.