cross reference to SI8932B-IS

Ella KIM

Expert 4232 points

Other Parts Discussed in Thread: AMC1411, TLV9001

Hi There,

I wonder if TI has a solution for SI8932B-IS. Thanks,

FYI, https://www.skyworksinc.com/-/media/Skyworks/SL/documents/public/data-sheets/si8931-32-datasheet.pdf

over 5 years ago

0 Cynthia over 5 years ago

TI__Mastermind 25070 points

Hello,

For future reference, TI.com provides a quick BOM & Cross reference tool, where one can search for TI equivalent parts based on part numbers, as shown below.

Click Here to see a list of the Isolated Amplifier portfolio available. I would suggest taking a closer look at AMC1411.

Regards

Cynthia

0 Ella KIM over 5 years ago in reply to Cynthia

TI__Expert 4232 points

Hi Cynthia,

I wasn't able to find any equivalent parts in Cross reference tool. Thank you for letting me know a new part, AMC1411.

Q1. Could you also let me know when it would be released?

In addition, customer is using SI8932B-IS, a single ended output device. But AMC1411 has a differential output.

Q2. When I check the Iso Amp list that you attached, TI portfolio supports differential output only. Could you double check if TI has devices with the single ended output ?

Q3. Can customer replace SI8932B-IS with AMC1411 simply by connecting OUTN to GND?

+1 Alexander Smith over 5 years ago in reply to Ella KIM

TI__Guru 61072 points

Hi Ella,

AMC1311B is probably the best recommendation to replace SI8932B-IS. The AMC1411 is similar to the AMC1311B but in a wider package that offers higher isolation ratings.

1. No, I cannot discuss release timelines on the public forum.

2. As you mentioned the main difference between the SI8932 and AMC1311B is that the SI8932 has a single-ended output which the AMC1311B does not. However, as explained in this FAQ, there are several things that can be done to accommodate for this difference.

https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/889581/faq-amc1311-can-i-use-voutp-only-in-a-single-ended-configuration

3. As discussed in the FAQ, OUTN should not be directly connected to GND since it is a driven output. It can be left to float or connected to GND through a 10kohm resistor. Keep in mind however that when only measuring OUTP, the the common-mode output voltage can vary +/-50mV, appearing as an offset. If an offset calibration is performed, this is not a concern. For best performance without an offset calibration a differential to single-ended conversion can be performed with an opamp such as TLV9001.

0 Ella KIM over 5 years ago in reply to Alexander Smith

TI__Expert 4232 points

Thanks Alexander for your kind explanation. The information helps a lot.

0 Alexander Smith over 5 years ago in reply to Ella KIM

TI__Guru 61072 points

Happy to help, please let me know if you have any other questions!

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cross reference to SI8932B-IS