ADC0831 Parallax Inc, ADC0831 Datasheet

ADC (A/D Converters) 8-bit ADC DIP ADC0831

ADC0831

Manufacturer Part Number
ADC0831
Description
ADC (A/D Converters) 8-bit ADC DIP ADC0831
Manufacturer
Parallax Inc
Datasheet

Specifications of ADC0831

Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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© 1999 National Semiconductor Corporation
ADC0831/ADC0832/ADC0834/ADC0838
8-Bit Serial I/O A/D Converters with Multiplexer Options
General Description
The ADC0831 series are 8-bit successive approximation A/D
converters with a serial I/O and configurable input multiplex-
ers with up to 8 channels. The serial I/O is configured to
comply with the NSC MICROWIRE
standard for easy interface to the COPS
sors, 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 as-
signment.
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.
Features
n NSC MICROWIRE compatible — direct interface to
n Easy interface to all microprocessors, or operates
Typical Application
TRI-STATE
COPS
COPS family processors
“stand-alone”
and MICROWIRE
®
is a registered trademark of National Semiconductor Corporation.
are trademarks of National Semiconductor Corporation.
serial data exchange
DS005583
family of proces-
n Operates ratiometrically or with 5 V
n No zero or full-scale adjust required
n 2-, 4- or 8-channel multiplexer options with address logic
n Shunt regulator allows operation with high voltage
n 0V to 5V input range with single 5V power supply
n Remote operation with serial digital data link
n TTL/MOS input/output compatible
n 0.3" standard width, 8-, 14- or 20-pin DIP package
n 20 Pin Molded Chip Carrier Package (ADC0838 only)
n Surface-Mount Package
Key Specifications
n Resolution
n Total Unadjusted Error
n Single Supply
n Low Power
n Conversion Time
reference
supplies
DS005583-1
DC
±
1
2
voltage
LSB and
www.national.com
August 1999
±
15 mW
1 LSB
5 V
8 Bits
32 µs
DC

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