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OPAMP

:: EPE Chat Zone ­:: ­Radio Bygones Message Board :: » EPE Forum Archives 2005-2006 » Archive through May 29, 2005 » OPAMP « Previous Next »

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Hyd_abhik
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Username: Hyd_abhik

Post Number: 2
Registered: 05-2005

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Posted on Wednesday, 25 May, 2005 - 05:55 am:   Edit Post Delete Post Print Post

[Reposted from Radio Bygones by Board Admin -- please take care to post into the correct area, thank you.]

Dear Sir,
I have a doubt regarding OP-AMP circuitry.
1.when OPAMP is used as a buffer, it is always non-inverting configuration,why??
2. in buffer, inverting terminal is shorted with output terminal, in other words, feedback resistor is zero. And signal is given to the non-inverting terminal. But in some cases, though supply is given to the non-inverting terminal, still a feedbach resistor is connected, what is the advantages??please reply soon.
ABHIK GIRI

Rf


INV input voltage Vout

NI

(Message edited by admin on 25 May, 2005)

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