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ADC08032 Datasheet(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. ADC08032
Description  8-Bit High-Speed Serial I/O A/D Converters with Multiplexer Options, Voltage Reference, and Track/Hold Function
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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ADC08031/ADC08032/ADC08034/ADC08038
8-Bit High-Speed Serial I/O A/D Converters with
Multiplexer Options, Voltage Reference, and Track/Hold
Function
General Description
The ADC08031/ADC08032/ADC08034/ADC08038 are 8-bit
successive approximation A/D converters with serial I/O and
configurable input multiplexers with up to 8 channels. The
serial I/O is configured to comply with the NSC MICROW-
IREserial data exchange standard for easy interface to the
COPSfamily of controllers, and can easily interface with
standard shift registers or microprocessors.
The ADC08034 and ADC08038 provide a 2.6V band-gap de-
rived reference. For devices offering guaranteed voltage ref-
erence performance over temperature see ADC08131,
ADC08134 and ADC08138.
A track/hold function allows the analog voltage at the positive
input to vary during the actual A/D conversion.
The analog inputs can be configured to operate in various
combinations
of
single-ended,
differential,
or
pseudo-differential modes. In addition, input voltage spans
as small as 1V can be accommodated.
Applications
n
Digitizing automotive sensors
n
Process control monitoring
n
Remote sensing in noisy environments
n
Instrumentation
n
Test systems
n
Embedded diagnostics
Features
n
Serial digital data link requires few I/O pins
n
Analog input track/hold function
n
2-, 4-, or 8-channel input multiplexer options with
address logic
n
0V to 5V analog input range with single 5V power
supply
n
No zero or full scale adjustment required
n
TTL/CMOS input/output compatible
n
On chip 2.6V band-gap reference
n
0.3" standard width 8-, 14-, or 20-pin DIP package
n
14-, 20-pin small-outline packages
Key Specifications
n
Resolution:
8 bits
n
Conversion time (f
C = 1 MHz):
8µs (max)
n
Power dissipation:
20mW (max)
n
Single supply:
5V
DC (±5%)
n
Total unadjusted error:
±12 LSB and ±1LSB
n
No missing codes over temperature
Ordering Information
Industrial (−40˚C
≤ T
A ≤ +85˚C)
Package
ADC08031CIN*
N08E
ADC08038CIN*
N20A
ADC08031CIWM,
ADC08032CIWM,
M14B
ADC08034CIWM
ADC08038CIWM
M20B
*Not recomended for new designs.
COPSmicrocontrollers and MICROWIREare trademarks of National Semiconductor Corporation.
June 2000
© 2000 National Semiconductor Corporation
DS010555
www.national.com




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