OPA211-HT: E2E Engineer Tech stopped responding to my text, despite I announced that my issue has not been resolved.

nader niakan

Part Number: OPA211-HT
Other Parts Discussed in Thread: OPA2333-HT

We have purchased OPA211-HT & OPA2333-HT to evaluate and characterize for our new R&D project. During test, I found that Vos and IB were not per datasheet. I brought up the issue in E2E forum. Some back & forth texts occured with Engineering Tech, but then E2E Engineer Tech stopped corresponding to me, despite I announced that my issue has not been resolved. I have asked that I talk to someone to resolve my issues (including the issue I have with sending a few of my texts, which they did not go thru). It is not appropriate to abndone your customers and disregard their tech issues. I expected more from TI. Nader Niakan

2 months ago

0 Ignacio Vazquez Lam1 2 months ago

TI__Mastermind 22470 points

Hi Nader,

I was able to look over the thread you are referring to. I was wondering if you were able to try some of the suggestions mentioned by Ron and Marek? The last response provided by Marek explains some of the issues you will run into when measuring Vos specifically.

Best Regards,

Ignacio

0 nader niakan 2 months ago in reply to Ignacio Vazquez Lam1

Prodigy 125 points

Hi Ignacio,

Ye, we have been doing so much back & forth. Need to talk to someone, please.

Chuck Sins sent me this, saying that he would send me a friend request to discuss this offline. I don’t see friend request !!

Chuc Sin's Message.docx

0 Ignacio Vazquez Lam1 2 months ago in reply to nader niakan

TI__Mastermind 22470 points

Hi Nader,

Were you able to adjust the circuit to the recommendations highlighted by Ron? Offset voltage seen at the output is caused by many factors, many of the ones already mentioned in the previous thread. These are not trivial measurements so their could be many reasons you are seeing such a large error.

Best Regards,

Ignacio

0 nader niakan 2 months ago in reply to Ignacio Vazquez Lam1

Prodigy 125 points

don't think you read my message which I sent you yesterday (above). So, forget about it! I don't think you guys can help and I am not sure whom in TI I can get involved in this to give me a straight answer. It is so frustrating! Thank you and bye.

0 nader niakan 1 month ago in reply to nader niakan

Prodigy 125 points

MY ISSUE HAS NOT BEEN RESOLVED !

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OPA211-HT: E2E Engineer Tech stopped responding to my text, despite I announced that my issue has not been resolved.