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SBAS456A – DECEMBER 2008 – REVISED OCTOBER 2009
12-BIT 8-CHANNEL SAMPLING ANALOG-TO-DIGITAL CONVERTER
WITH I
2
C™ INTERFACE
Check for Samples:
1
FEATURES
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
I
2
C™ Interface Supports Standard, Fast, and
High-Speed Modes
TSSOP-16 Package
APPLICATIONS
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•
•
•
•
Voltage-Supply Monitoring
Isolated Data Acquisition
Transducer Interfaces
Battery-Operated Systems
Remote Data Acquisition
•
•
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•
•
•
2
•
DESCRIPTION
The ADS7828 is a single-supply low-power 12-bit data acquisition device that features a serial I
2
C interface and
an 8-channel multiplexer. The analog-to-digital (A/D) converter features a sample-and-hold amplifier and internal
asynchronous clock. The combination of an I
2
C serial 2-wire interface and micropower consumption makes the
ADS7828 ideal for applications requiring the A/D converter to be close to the input source in remote locations
and for applications requiring isolation. The ADS7828 is available in a TSSOP-16 package.
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
COM
SAR
8-Channel
Multiplexer
S/H Amp
Comparator
SDA
SCL
A0
A1
CDAC
Serial
Interface
2.5-V V
REF
REF
IN
/REF
OUT
Buffer
1
2
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
I2C is a trademark of NXP Semiconductors.
Copyright © 2008–2009, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
TI [ TEXAS INSTRUMENTS ]
