About the component selection of U3/U4(INA125U) - PCB - Electrical https://theopenexo.nau.edu/community/pcb-electrical/about-the-component-selection-of-u3-u4ina125u/ Discussion Board en-US Tue, 16 Jun 2026 00:15:24 +0000 wpForo 60 RE: About the component selection of U3/U4(INA125U) https://theopenexo.nau.edu/community/pcb-electrical/about-the-component-selection-of-u3-u4ina125u/#post-160 Thu, 04 Dec 2025 13:01:23 +0000 PCB - Electrical Ruoran https://theopenexo.nau.edu/community/pcb-electrical/about-the-component-selection-of-u3-u4ina125u/#post-160 RE: About the component selection of U3/U4(INA125U) https://theopenexo.nau.edu/community/pcb-electrical/about-the-component-selection-of-u3-u4ina125u/#post-159 Tue, 02 Dec 2025 17:24:59 +0000 PCB - Electrical Shanpu Fang https://theopenexo.nau.edu/community/pcb-electrical/about-the-component-selection-of-u3-u4ina125u/#post-159 RE: About the component selection of U3/U4(INA125U) https://theopenexo.nau.edu/community/pcb-electrical/about-the-component-selection-of-u3-u4ina125u/#post-157 Tue, 02 Dec 2025 06:15:32 +0000 PCB - Electrical Ruoran https://theopenexo.nau.edu/community/pcb-electrical/about-the-component-selection-of-u3-u4ina125u/#post-157 Answer to: About the component selection of U3/U4(INA125U) https://theopenexo.nau.edu/community/pcb-electrical/about-the-component-selection-of-u3-u4ina125u/#post-155 Mon, 01 Dec 2025 18:16:20 +0000 @Ruoran

Thanks for reaching out. The INA125 series is regularly out of stock on JLCPCB. What we’ve ended up doing a lot of times is ordering them from a separate website and populating them ourselves in the lab. There are sub-models of the chip with minor spec differences. If I remember correctly, we’ve used both the INA125U and the INA125UA. Right now, the INA125U is in stock on JLCPCB.

https://jlcpcb.com/partdetail/TexasInstruments-INA125UA/C21974

]]> PCB - Electrical Shanpu Fang https://theopenexo.nau.edu/community/pcb-electrical/about-the-component-selection-of-u3-u4ina125u/#post-155 About the component selection of U3/U4(INA125U) https://theopenexo.nau.edu/community/pcb-electrical/about-the-component-selection-of-u3-u4ina125u/#post-147 Fri, 28 Nov 2025 09:14:47 +0000 Dear Openexo team,
I did not see the JLCPCB part regarding the INA125U amplifier in the BOM file. Cuz there are many 16 pin INA125U, I wonder if the selection of chips will affect the performance of the circuit. May I ask if you can provide the selection of INA125U that you are using? Thanks!

]]> PCB - Electrical Ruoran https://theopenexo.nau.edu/community/pcb-electrical/about-the-component-selection-of-u3-u4ina125u/#post-147