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L9703

OCTAL GROUND CONTACT MONITORING CIRCUIT

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OPERATING DC SUPPLY VOLTAGE RANGE

5V TO 25V

SUPPLY OVERVOLTAGE PULSE UP TO 40V

VERY LOW STANDBY QUIESCENT CUR-

RENT 0.2mA

INTERNAL CLAMPING DIODES AT CONTACT

INPUTS TO V

S

AND GND

INPUT PULSE CURRENT CAPABILITY UP TO

+ 50mA ; 鈥?75mA

NOMINAL CONTACT CURRENT OF 10mA DE-

FINED BY EXTERNAL CONTACT SERIES RE-

SISTORS R

I N1鈥?

CONTACT STATUS MONITORING BY COM-

PARING THE RESISTANCE AT CONTACT

SENSE INPUTS WITH THE INTERNAL REFER-

ENCE RESISTOR VALUE

HIGH IMMUNITY DUE TO RESISTANCE COM-

PARISON WITH HYSTERESIS

DIP-20

SO-20L

ORDERING NUMBERS

: L9703 (DIP-20)

L9703D (SO-20L)

DESCRIPTION

The L9703 is a bipolar monolithic integrated cir-

cuit for monitoring the status of up to eight con-

tacts connected to GND.

BLOCK DIAGRAM

It contains eight contact sense inputs and eight

microcomputer compatible three-state outputs.

March 1992

1/9

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L9703D相關型號PDF文件下載

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• L9700
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  HEX PRECISION LIMITER
  
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• L9700
  英文版
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• L9703
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  英文版
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• L9700D
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  HEX PRECISION LIMITER
  
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• L9703D
  英文版
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  L9703D
• L9703D
  英文版
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  OCTAL SUPPLY CONTACT MONITORING CIRCUIT
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  英文版
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