Texas Instruments LMP91200 Sensor AFE Evaluation Board Data Converter User's Manual
Summary
This LMP91200 Evaluation Board is essential for testing and configuring the LMP91200 sensor in real-world applications. It enables accurate measurement using external pH probes and RTDs (such as Pt100/Pt1000), while also supporting integration into the complete SensorAFE evaluation platform. The manual provides comprehensive guidance on standalone setup, jumper configurations, SPI interfacing with microcontrollers, and proper power supply connections for embedded system engineers and scientific researchers.
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 13 |
| File Size | 558.84 KB |
| Published | May 28, 2026 |
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Frequently Asked Questions
How do I connect an external PH probe?
Connect the pH probe to the BNC connector labeled PH_SENSOR. The footprint allows a Triaxial BNC replacement if needed.
What are the jumper settings for connecting a Pt1000 RTD in standalone mode?
Set jumper JP6 configuration 3-5 shorted, which is for when a Pt1000 is connected to the board.
What voltage range should I use for external power supply (VDD-EXT)?
Connect a supply voltage between VDD-EXT and GND banana plugs in the range of 1.8V to 5.5V.
How does the jumper configuration change when using the board with the SensorAFE platform?
JP2 should be configured as 1-3 shorted, connecting the onboard voltage reference (2.5V) to the VREF pin.