opamp lm318 output problem.

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hiren.dave@bhuved.com

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hi,


i am using opamp lm318 for non inverting amplifier but it doesn't give proper output. i am attaching my ckt here.
if input is 1V and gain is 201 than output is 2v. VCC is 15V.


please help me to solve it.View attachment untitled.bmp
 

Hi hiren,

At least how much I know I think LM318 is duel supply OPAMP so you need to give -V to -15v to first point
The second point is when you when you gives 1 v input and gain is very high like you said then vout saturates to VCC ideal but you will get little less than VCC....

Good Luck
 
hi milind.
thanks for your reply...


i am giving it 20v vcc at 7th pin and gnd to 4th. output is not changing if -vcc is given to 4th.

i got the output. i am attacing final circuit.
 

Dear hiren
Hi
Is your input a dc signal really ?
BTW : milind is absolutely right about minus supply .
 

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