SNAS531B – AUGUST 1999 – REVISED MARCH 2013
ADC0831-N/ADC0832-N/ADC0834-N/ADC0838-N 8-Bit Serial I/O A/D Converters with
Multiplexer Options
Check for Samples:
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FEATURES
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TI MICROWIRE Compatible—Direct Interface to
COPS Family Processors
Easy Interface to All Microprocessors, or
Operates “Stand-Alone”
Operates Ratiometrically or with 5 V
DC
Voltage
Reference
No Zero or Full-Scale Adjust Required
2-, 4- or 8-Channel Multiplexer Options with
Address Logic
Shunt Regulator Allows Operation with High
Voltage Supplies
0V to 5V Input Range with Single 5V Power
Supply
Remote Operation with Serial Digital Data Link
TTL/MOS Input/Output Compatible
0.3 in. Standard Width, 8-, 14- or 20-Pin PDIP
Package
20 Pin PLCC Package (ADC0838-N Only)
SOIC Package
KEY SPECIFICATIONS
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Resolution: 8 Bits
Total Unadjusted Error: ±½ LSB and ±1 LSB
Single Supply: 5 V
DC
Low Power: 15 mW
Conversion Time: 32
μs
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DESCRIPTION
The ADC0831 series are 8-bit successive
approximation A/D converters with a serial I/O and
configurable input multiplexers with up to 8 channels.
The serial I/O is configured to comply with the TI
MICROWIRE serial data exchange standard for easy
interface to the COPS family of processors, and can
interface with standard shift registers or
μPs.
The 2-, 4- or 8-channel multiplexers are software
configured for single-ended or differential inputs as
well as channel assignment.
The differential analog voltage input allows increasing
the common-mode rejection and offsetting the analog
zero input voltage value. In addition, the voltage
reference input can be adjusted to allow encoding
any smaller analog voltage span to the full 8 bits of
resolution.
Typical Application
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Copyright © 1999–2013, 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.
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