How to pass analog signal between 2 isolate sections in a circuit?

[ragabs]

hii
can u help me to find way to pass analouge signal between two isolated sections in circuit?

thanx in advance

 

[alzomor]

Re: need help

Hi

You can use 1:1 transformer or any other ratio if you need.
also you can use an optocoupler in linear mode not in saturation mode
check this link
https://www.ssousa.com/appnote060.asp

Salam
Hossam Alzomor

 

[hakeen]

Re: need help

Depending on bandwidth you can use different optocouplers

Analog optocouplers: HCNR200/201

High bandwidth Analog optocouplers: HCPL-4562 (17MHz BW)



Cheers
Hakeen

 

[kishore2k4]

Re: need help

You can also use the more expensive Isolation amplifiers, which work better for low noise analog designs.

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