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PDF ( 数据手册 , 数据表 ) ADC08034

零件编号 ADC08034
描述 8-Bit High-Speed Serial I/O A/D Converters with Multiplexer Options/
Voltage Reference/ and Track/Hold Function
制造商 National Semiconductor
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ADC08034 数据手册, 描述, 功能
June 1999
ADC08031/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 (fC= 1 MHz)
8µs (max)
n Power dissipation
20mW (max)
n Single supply
n Total unadjusted error
5VDC (±5%)
±12 LSB and ±1LSB
n No missing codes over temperature
Ordering Information
Industrial (−40˚C TA +85˚C)
ADC08031CIN
ADC08031CIWM, ADC08034CIWM
ADC08038CIWM
Package
N08E
M14B
M20B
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
COPSmicrocontrollers and MICROWIREare trademarks of National Semiconductor Corporation.
© 1999 National Semiconductor Corporation DS010555
www.national.com







ADC08034 pdf, 数据表
Timing Diagrams (Continued)
ADC08034 Timing
DS010555-15
www.national.com
8







ADC08034 equivalent, schematic
Applications (Continued)
Low-Cost Remote Temperature Sensor
Digitizing a Current Flow
DS010555-45
DS010555-22
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