OpAmp (ADA4522) heating issue

Preethamshetty

on Nov 3, 2021

I am using this ADA4522 as voltage follower which is supplied with +35V and -5V. When input signal with below specs is given the OpAmp is heating
Input signal specs:
20Vpk, 5us rise/fall time and 2us high/low time.

0 ADIApproved

on Nov 3, 2021 8:52 PM
Hi,

Just a couple of questions about your setup:

1. When you configured the ADA4522 in a voltage follower, is there a feedback resistor?

2. Is there a source resistance or input resistance connected to the non-inverting input? If so, what's the value?

Thanks,

Donnie
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0 Preethamshetty
on Nov 4, 2021 2:04 AM in reply to ADIApproved
Hi Donnie,

Thanks for the reply

1. When you configured the ADA4522 in a voltage follower, is there a feedback resistor?

No there is no feedback resistor

2. Is there a source resistance or input resistance connected to the non-inverting input? If so, what's the value?

Yes we have connected 2 Ohm resistor

Thanks

Preetham
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OpAmp (ADA4522) heating issue