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ADC08131 Просмотр технического описания (PDF) - National ->Texas Instruments

Номер в каталогеADC08131 National-Semiconductor
National ->Texas Instruments National-Semiconductor
Компоненты Описание8-Bit High-Speed Serial I/O A/D Converters with Multiplexer Options, Voltage Reference, and Track/Hold Function
ADC08131 Datasheet PDF : 22 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
June 1999
ADC08131/ADC08134/ADC08138
8-Bit High-Speed Serial I/O A/D Converters with
Multiplexer Options, Voltage Reference, and Track/Hold
Function
General Description
The ADC08131/ADC08134/ADC08138 are 8-bit successive
approximation A/D converters with serial I/O and config-
urable input multiplexers with up to 8 channels. The serial
I/O is configured to comply with the NSC MICROWIRE
serial data exchange standard for easy interface to the
COPSfamily of controllers, and can easily interface with
standard shift registers or microprocessors.
All three devices provide a 2.5V band-gap derived reference
with guaranteed performance over temperature.
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 Embedded diagnostics
Features
n Serial digital data link requires few I/O pins
n Analog input track/hold function
n 4- or 8-channel input multiplexer options with address
logic
n On-chip 2.5V band-gap reference (±2% over
temperature guaranteed)
n No zero or full scale adjustment required
n TTL/CMOS input/output compatible
n 0V to 5V analog input range with single 5V power
supply
Key Specifications
n Resolution
8 Bits
n Conversion time (fC = 1 MHz)
n Power dissipation
8 µs (Max)
20 mW (Max)
n Single supply
n Total unadjusted error
5 VDC (±5%)
±12 LSB and ±1 LSB
n Linearity Error (VREF = 2.5V)
n No missing codes (over temperature)
±12 LSB
n On-board Reference
+2.5V ±1.5% (Max)
Ordering Information
Industrial
(−40˚C TA +85˚C)
ADC08131CIWM
ADC08134CIWM
ADC08138CIWM
Package
M14B
M14B
M20B
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
COPSmicrocontrollers and MICROWIREare trademarks of National Semiconductor Corporation.
© 2001 National Semiconductor Corporation DS010749
www.national.com
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