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KLN,
Yes that potential LMP91200 output being so close and maybe even exceeding the reference voltage of the ADC. 3.3V VRef should be fine for LMP91200 so long as it does not exceed VDD.
Yes I would be happy to review your PCB layout.
Thanks
-Alex Th…
Thankyou Alex,
Could you please tell me the stabilization time for each sample from the sensor when using the LMP91200 AFE?
Additionally, my pH sensor cable is a coaxial cable with a coaxial BNC connector. Can I connect a coaxial male BNC to a triaxial…
Part Number: LMP91200 Hi,
I am designing a medical-grade pH meter that needs to pass the Level 4 ESD test. The pH electrodes have very high internal resistance, so the op amp must have a very low input bias current (the LMP91200 has an input bias current…
Part Number: LMP91200 Hello, I am trying to interface my LMP91200 to Arduino UNO R3. In what way should I connect my pins from the LMP91200 to Arduino UNO? Do I also need a special library for it? Thanks
Part Number: LMP91200 Other Parts Discussed in Thread: TIDA-00561 Tool/software: Hello,
I have been studying the reference design for LMP91200 (TIDA-00561), with particular attention to the GUARD and VCM nets. It appears, from inspecting the gerber…
Part Number: LMP91200 Hi, I would like to ask you 2 basic questions about LMP91200 as below. 1) I suppose that the input buffer opeamp can be used as general "high impedance" opamp. Is my idea correct? 2) Do you have a device which has 4 pieces…
Hi Alone173,
Alone173 said: Are you continuing to use LMP91200, but you want to low cost in some of op amp and Vref design?
=> yes, you're right.
This is my initial understanding.
To replace LMP91200 with LMP7721 or other similar op amp does not…
Part Number: LMP91200 Other Parts Discussed in Thread: LMP91000 Hello, this is pavan
We are trying to integrate pH1000 Sensorex ph sensor to LMP91200 AFE of texas.
Kindly provide details on how to connect the sensor to chipset directly or do we need to…
Part Number: LMP91200 Other Parts Discussed in Thread: LMP91000 , TIDA-00561 , LMP91000EVM https://e2e.ti.com/support/sensors-group/sensors/f/sensors-forum/1135597/lmp91200-reference-to-build-ion-selective-electrode-measuring-circuits?tisearch=e2e-sitesearch&keymatch…
