ISO1540: Noise question

AJ Cheng

Part Number: ISO1540

Dear Sir:
We would like used ISO1540 to replace ADUM1250 , We used same I2C bus to test those parts , but ISO1540 have some noise then ADUM1250 have no this kind of noise as below picture , Does TI have any suggest to us?

over 5 years ago

0 Koteshwar Rao over 5 years ago

TI__Mastermind 49445 points

Hi AJ,

Thank you for posting the issue you are facing with ISO1540. It seems like this post is about the same issue that I am discussing with Steven and James in the E2E post at the link below. If so, then I will keep this post open for now and once this issue is resolved I will come back and post an update here. Thanks.

https://e2e.ti.com/support/isolation/f/1013/p/775086/2870930#2870930

Regards,
Koteshwar Rao

0 AJ Cheng over 5 years ago in reply to Koteshwar Rao

Genius 3615 points

Dear Koteshwar Rao.
I got it. Thanks for kindly help~

0 Koteshwar Rao over 5 years ago in reply to AJ Cheng

TI__Mastermind 49445 points

Hi AJ,

Since the necessary inputs to resolve the issue have been provided in the other related E2E post, I will go ahead and mark this thread as closed. For reader's convenience, I am copying below the link to the original post.

e2e.ti.com/.../2870930

Regards,
Koteshwar Rao

Isolation

Isolation forum

ISO1540: Noise question