TMP1075: Questions of TMP1075

Jimmy Lai

Part Number: TMP1075

Dear Team,

TI's Temperature Sensor TMP1075DSG, we have encountered the following problems, please help, thank you~

We have measured that the I2C DATA waveform has a glitch at bit 8/9. I want to confirm whether the glitch is normal and whether it will affect the use of the IC. Thank you~

Many Thanks,

Jimmy

Thanks & Best Regards

Jimmy

over 1 year ago

0 Josh Wyatt over 1 year ago

TI__Guru* 91206 points

Jimmy -

Thanks for the post. Those are ACK's (acknowledgements) from the part. Completely normal in I2C communications.

0 Jimmy Lai over 1 year ago in reply to Josh Wyatt

TI__Expert 6845 points

Hi Wyatt,

Thanks for your great support.

Is the glitch occurring at bit-8 also normal in I2C communication?

Many Thanks,

Jimmy

0 Josh Wyatt over 1 year ago in reply to Jimmy Lai

TI__Guru* 91206 points

Jimmy -

those are on the ninth clock in both cases you circled and is not a glitch. That is what an ACK looks like.

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TMP1075: Questions of TMP1075