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5th April 2008, 11:46 AM
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 why REFERENCE pin is used? i am working with an AD620 type instrumentation amplifier... In the IC pin number 5 has been designated as REFERENCE.... What is the use of this REF pin? What will happen if i give it to GND and i supply some voltage to this pin? i could not find much information in the datasheet.... | |
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5th April 2008, 12:18 PM
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Its to apply an offset voltage to the output of the AD620. If its tied to 0V, then there is no offset. Do you have a circuit diagram to post.? Look at the AD623 datasheet for more info. Does this help.? EDIT: added AD623 extract.
__________________ Eric "Good enough is Perfect" PIC tutorials: Gramo's: www.digital-diy.net/ Bill's: www.blueroomelectronics.com/ Last edited by ericgibbs; 7th July 2008 at 12:23 PM. | ||
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