AM26C31: AM26C31 and AM26LS32AM about the nput & output pin capacitance questions

Mickey Zhang

Genius 12080 points

Part Number: AM26C31
Other Parts Discussed in Thread: AM26LS32AM

Hi Team,

The customer is using AM26C31 and AM26LS32AM . The customer uses the two devices in AC loading analysis. He would like to know the the input &

output pin capacitance of the two parts when he uses the two devices in AC loading analysis. Can you tell me this?

Best Wishes,
Mickey Zhang
Asia Customer Support Center
Texas Instruments

over 7 years ago

0 Mickey Zhang over 7 years ago

TI__Genius 12080 points

Hi Team,

Can you provide some help for me ? The customer is waiting for my reply.

Thank you.

0 Max Robertson over 7 years ago in reply to Mickey Zhang

TI__Guru 62910 points

Hi Mickey,

Sorry for the delay. Since it doesn't seem that this parameter has been characterized already, we have had to order some units that we can use to take lab measurements. These should arrive within a few days, and we will update you later this week once we have completed the measurements.

Regards,
Max

0 Mickey Zhang over 7 years ago in reply to Max Robertson

TI__Genius 12080 points

Hi Max,

Thank you for your support. I will wait for your measurements.

0 Matt Mendez over 7 years ago in reply to Mickey Zhang

TI__Intellectual 2885 points

Hi Mickey,

I got the AM23C31 parts, and tested the output capacitance. It is approximately 5 pF. and according to the data sheet, the input capacitance is 6 pF. I am still waiting for the AM26LS32AM parts to come in to do that test.

0 Mickey Zhang over 7 years ago in reply to Matt Mendez

TI__Genius 12080 points

Hi Matt,

Thank you for your help. I will wait for your reply.

0 Mickey Zhang over 7 years ago in reply to Matt Mendez

TI__Genius 12080 points

Hi Matt，

Do you have any update?

0 Matt Mendez over 7 years ago in reply to Mickey Zhang

TI__Intellectual 2885 points

Hi Mickey,

I am still waiting to order the other part. I've been in contact with our team to get the part samples, and I keep get directed to another person. I should have the order put in today, the parts by Wednesday, and I'll be able to get the results that same day.

0 Mickey Zhang over 7 years ago in reply to Matt Mendez

TI__Genius 12080 points

Hi Matt,

Thank you for your support. I will wait for your test results.

0 Matt Mendez over 7 years ago in reply to Mickey Zhang

TI__Intellectual 2885 points

Hello Mickey,

I have put in the order for the parts, I should be getting them tomorrow or the day after. The results will follow soon after.

0 Mickey Zhang over 7 years ago in reply to Matt Mendez

TI__Genius 12080 points

Hi Matt,

OK. Thank you for so much support. I will wait for your test results.

0 Mickey Zhang over 7 years ago in reply to Matt Mendez

TI__Genius 12080 points

Hi Matt:

Is there any update?

0 Matt Mendez over 7 years ago in reply to Mickey Zhang

TI__Intellectual 2885 points

Hello Mickey,

I just got into work now. The Order was placed last Tuesday. I do not know why it has taken so long for them to arrive. I will follow up with the sales team and give you an update by this afternoon.

0 Mickey Zhang over 7 years ago in reply to Matt Mendez

TI__Genius 12080 points

Hi Matt,

OK. Thanks for your help.

0 Matt Mendez over 7 years ago in reply to Mickey Zhang

TI__Intellectual 2885 points

I just got an email back from the Sales team. Unfortunately, the part is still in transit. I have not gotten an exact delivery date, but it should be here this week.

0 Mickey Zhang over 7 years ago in reply to Matt Mendez

TI__Genius 12080 points

OK. Thank you very much.

0 Matt Mendez over 7 years ago in reply to Mickey Zhang

TI__Intellectual 2885 points

Hi Mickey,

Great news, I just received the parts, and measured the output capacitance. It is 13.1 pF. Hope this helps. Again, very sorry it took so long to receive the parts.

Take Care,

Matt

0 Mickey Zhang over 7 years ago in reply to Matt Mendez

TI__Genius 12080 points

Hi Matt,

Thanks a lot for your great help.

0 Mickey Zhang over 7 years ago in reply to Matt Mendez

TI__Genius 12080 points

Hi Matt,

Do you test the input capacitance value?

0 Matt Mendez over 7 years ago in reply to Mickey Zhang

TI__Intellectual 2885 points

Hi Mickey,

I did not test the input capacitance as the values are in the datasheet (6 pF). I can verify them if you'd like

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AM26C31: AM26C31 and AM26LS32AM about the nput & output pin capacitance questions