• 

  Amy Luo

  • 3 months ago
  • Sensors
  • Sensors forum

  LMP91200: Resistance value

  • Resolved

  Part Number: LMP91200 Hi team, A customer inquired about the internal resistance of LMP91200
• 

  Gordon Varney

  • 3 months ago
  • Sensors
  • Sensors forum

  RE: LMP91200: Faulty VOCM and VOUT signal, seems random

  A few comments that may help. 1) The probe is very high impedance (Ultra low current) What this means is that you will not be able to connect a multimeter to any of the probe connections. 2) The probe INP is so sensitive that it requires a Guard band...
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  Hoang Anh

  • 5 months ago
  • Sensors
  • Sensors forum

  LMP91200: Have problem with LMP91200

  TI Thinks Resolved

  Part Number: LMP91200 Hi everyone. I had designed schematic using LMP91200 to communicate with PH sensor. try to change PH value but ADC value i read not change. i have probe at the pin INP of PH sensor, when i don't plug in PH sensor it is...
• 

  Lauren Mayfield

  • 5 months ago
  • Sensors
  • Sensors forum

  LMP91200: pH sensor only has two wires, no third conductor - how to connect it to a guard?

  TI Thinks Resolved

  Part Number: LMP91200 If the pH sensor only has two wires which I will connect to INP and VCOM what do I connect the guard to? There is not a third conductor in the pH sensor cable.
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  Oleg Kobrin

  • 9 months ago
  • Sensors
  • Sensors forum

  LMP91200: What about SPI and RTD senspr in this part?

  • Resolved

  Part Number: LMP91200 Hello! Currently the product folder of LMP91200 shows a datasheet with no SPI
• 

  Oleg Kobrin

  • 9 months ago
  • Sensors
  • Sensors forum

  LMP91200: Using several LMP91200 in one design

  TI Thinks Resolved

  Part Number: LMP91200 Hello! I am developing 4-channel ion meter, and plan using LMP91200 for it. The question is - how to connect 4 parts to have one common VCM output for single reference electrode and 4 ion electrodes? Is it ok to connect all VCM...
• 

  Danilo Austria

  • 8 months ago
  • Sensors
  • Sensors forum

  LMP91200: RTD interface

  TI Thinks Resolved

  Part Number: LMP91200 Hi Team, In the revision history of the datasheet of LMP91200, the temperature sensor function was deleted. A customer is looking for the RTD function of this device. I have checked our signal conditioner's product page but...
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  Gordon Varney

  • 7 months ago
  • Sensors
  • Sensors forum

  RE: LMP91200: pH electrode

  Gama, It would be best if the manufacture of the sensor would provide this information in the datasheet in the form of a logarithmic response functions from which you can derive an algorithm, but it doesn't. A common use of gas sensors is in an...
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  Raymond Zhang1

  • 2 months ago
  • Amplifiers
  • Amplifiers forum

  RE: LMP7721: Current Measurement

  Hi Sasi, Q: we like to know the sensing current range to be applied to the trans-impedance amplifier The sensing current range is depending on the feedback resistor of the TIA configuration, see the application link below. The TIA Vout's transfer...
• 

  Kailyn Chen

  • over 1 year ago
  • Sensors
  • Sensors forum

  LMP91200: The type of PH electrode

  TI Thinks Resolved

  Part Number: LMP91200 Dear， Our customer want to use the LMP91200 for PH measurement, so he wants to know if he need use the glass electrode,complicated electrode or participate electrode. Best regards Kailyn

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