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Re: AD630 Unity gain error?

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Harry

 

Circuit is as below from AN-308. Supply voltage is +15/-15VDC. Signal input is on pins 16, 17; for test purposes I've connected a battery to the input.

 

For comparator - Pin 10 is at GND and I connect Pin 9 to +15 or -15V to set gain to +1 or -1.

 

Output measured on Pin13.

 

Gain error is particularly large for -1 gain.

 

Thank you for your help.

 

regards

 

Gerry

 

 

 

AD630 Circuit.JPG


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