Author Topic: Shunt opamp supply question  (Read 908 times)

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Offline tesliniusTopic starter

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Shunt opamp supply question
« on: September 13, 2021, 07:04:42 pm »
I have a current shunt and i'm using an opamp to amplifiy it, the only problem is that if i supply it to +12V which is powered by a 5w transformer the voltage drops by a couple 100mV and so the opamp output changes which changes the current readings. To prevent this i am planning to power it from +5V and -12V like in the picture, i just don't know if i can power it like this with different potentials?
 

Online Gyro

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Re: Shunt opamp supply question
« Reply #1 on: September 13, 2021, 07:55:23 pm »
Best Regards, Chris
 
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Offline Vovk_Z

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Re: Shunt opamp supply question
« Reply #2 on: September 13, 2021, 09:29:31 pm »
i am planning to power it from +5V and -12V like in the picture, i just don't know if i can power it like this with different potentials?
It is ok. Any typical opamp can work with any unsimmetrical power supply voltages.
 


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