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Help with ICL 7107 Digital Voltmeter

nVital · 2010-03-02 15:37:57

Hi lads, Need help with the last few pin assignments on this chip, where will the decimal point pin on the 7seg displays connect to, and where do AB4 and POL go to? Thanks Alot. http://http://www.datasheetcatalog.org/datasheet/intersil/fn3082.pdf Data Sheet ^^^^^^

02-03-2010 03:37PM

#1

nVital

Closed Accounts Posts: 36 ✭

Join Date: January 2010

Posts: 20

Hi lads,

Need help with the last few pin assignments on this chip, where will the decimal point pin on the 7seg displays connect to, and where do AB4 and POL go to?

Thanks Alot.

http://http://www.datasheetcatalog.org/datasheet/intersil/fn3082.pdf

Data Sheet ^^^^^^

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Comments

#2 02-03-2010 03:45PM

FarmerGreen

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Join Date: May 2008

Posts: 986

POL is polarity ie minus sign
AB4 is 4th digit A+B segments ie the 1.
Decimal point is usually hardwired for led display, not connected to the IC, pulldown to 0v thru a suitable resistor, try 5k.
Lcd dp's use fig 6 in the datasheet and a DIL switch

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