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The AD8129/AD8130 are designed as receivers for the transmission of high speed signals over twisted-pair cables to work with the AD8131 or AD8132 drivers...
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AD8130 on Analog.com

What is AD8130 Impedance for PCB layout?

MToprak

on Aug 16, 2023

Category: Datasheet/Specs

Product Number: AD8130

Hi,

I am planning to use AD8130 as Receiver Amplifier in my design. What are the Input and Output impedance of AD8130. In datasheet it says 5 MΩ but I think 5 MΩ is a high value. I am drawing the layout of the PCB. Which value should I use for Impedance of the trace. Could you please help me?

Regards

Toprak

0 FormerMember

on Aug 16, 2023 9:31 AM

PCB traces for common designs are often set to 50+-10% Ohms. (55 Ohms nominally using common pre-preg and trace widths). Input impedances don't matter, even digital circuits have high input impedances. Output impedances are often in the 22-33 Ohm range which work well with 50 Ohm boards.

0 PaulCA

on Oct 22, 2023 11:36 PM in reply to FormerMember

Hi,

I believe that the question has already been answered so I am closing this thread. Thank you!

Regards,
Paul

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What is AD8130 Impedance for PCB layout?