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부품번호 ADCV0831 기능
기능 8 Bit Serial I/O Low Voltage Low Power ADC with Auto Shutdown in a SOT Package
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ADCV0831 데이터시트, 핀배열, 회로
February 2000
ADCV0831
8 Bit Serial I/O Low Voltage Low Power ADC with
Auto Shutdown in a SOT Package
General Description
The ADCV0831 is a low voltage 8-bit successive approxima-
tion A/D converter with serial I/O. The I/O is a 3-wire serial in-
terface compatible with NSC’s MICROWIRE & Motorola’s
SPI standards. It easily interfaces with standard shift regis-
ters or microprocessors.
Low voltage and auto shutdown features make the
ADCV0831 ideal for portable battery operated electronic de-
vices. The main benefits are most apparent in small portable
electronic devices. The tiny A/D converter can be placed
anywhere on the board.
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 Tiny 6-pin SOT 23 package
n Serial digital data link requires few I/O pins
n Auto Shutdown
n 0V to 3V analog input range with single 3V power
supply
n TTL/CMOS input/output compatible
Key Specifications
(For 3V supply, typical, unless otherwise noted.)
n Resolution: 8 bits
n Conversion time (fC = 700 kHz): 16µs
n Low power dissipation: 720µW
n Single supply: 2.7V to 5VDC
n Linearity error: ±1.5LSB over temperature
n No missing codes over temperature
n Shutdown supply current 10nA
Ordering Information
Temperature Range
(0˚C Tj +70˚C)
ADCV0831M6
ADCV0831M6X
Connection Diagram
Package
MA06A
MA06A
Supplied As
1k Units Tape and Reel
3k Units Tape and Reel
ADCV0831
DS100104-1
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
COPSmicrocontrollers and MICROWIREare trademarks of National Semiconductor Corporation.
© 2000 National Semiconductor Corporation DS100104
www.national.com




ADCV0831 pdf, 반도체, 판매, 대치품
TRI-STATE Test Circuits and Waveforms
Timing Diagrams
Data Output Timing
DS100104-8
Start Conversion Timing
DS100104-10
DS100104-11
www.national.com
4

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ADCV0831 전자부품, 판매, 대치품
Applications
The ADCV0831 is ideal for applications operating with ratiometric transducers. The ADCV0831 can measure the signal produced
by the transducer and produce a corresponding code to the microprocessor. The microprocessor can then control the system pro-
ducing the signal.
Operating with Ratiometric Transducers
DS100104-63
The ADCV0831 can be used in low-cost remote temperature sensor system. For a temperature sensor, the LM60 is an excellent
companion to the ADCV0831, since it can operate off 3V supply. The LM60 linear scale factor is 6.25mV/˚C. Therefore, the
ADCV0831 can digitize a couple of degrees change in temperature and provide the output to the microprocessor, which in turn
can adjust the system environment. For higher accuracy, a low-offset op-amp can be used to gain up the LM60 output.
Low-Cost Remote Temperature Sensor
DS100104-60
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