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OPA power supply circuits, from 34410A

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cyberjok

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OPA power supply circuits ,from 34410A

as attach png file shows,,, it looks OPA power supply range extend to -4.7v -- +4.7v..... and it for no other purpose ????
 

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  • QQ图片20170715095651.png
    QQ图片20170715095651.png
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Re: OPA power supply circuits ,from 34410A

Hi,

I think it's rather +/- 4.1V.

and it for no other purpose ????
Click to expand...
We can't see if it is used elsewhere, because you only show a snippet of the whole schematic.

Klaus
 

Re: OPA power supply circuits ,from 34410A

**broken link removed**

- - - Updated - - -

+- 5.4 .... no other purpose ???
 

Re: OPA power supply circuits ,from 34410A

The power supply is tracking the input voltage, keeping common mode voltage constant near to zero.

Increases input impedance and reduces gain error.
 

Re: OPA power supply circuits ,from 34410A

thx for your input,,,, it looks just a buffer yet, :) :grin:
 

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