TEXAS INSTRUMENTS-LMP91200-Sensor-AFE-Evaluation-Board Data Converters

About this manual

The document provides instructions for using the LMP91200EVAL evaluation board. It details how to configure jumpers (JP1-JP7) for different operating modes, including standalone usage and integration with the SensorAFE evaluation platform.

The guide covers connecting external sensors such as pH probes and RTDs via specific connectors like PH_SENSOR and R_RTD_IN. It also explains power supply connections for VDD-EXT and VREF-EXT, ensuring voltage levels remain within the 1.8V to 5.5V range.

What's inside

• PH probe and RTD connection
• Stand alone usage
• Sensor AFE evaluation platform
• Connectors and Jumpers
• Schematic
• Board Layout

Frequently asked questions

What voltage range is required to power the LMP91200EVAL in standalone mode?

You must connect a supply voltage between 1.8V and 5.5V between the VDD-EXT and GND banana plugs.

What is the maximum allowed voltage for the external voltage reference?

The reference voltage cannot be bigger than the voltage applied at the VDD-EXT pin.

How are the LMP91200EVAL and SPIO4 boards connected in the Sensor AFE platform?

Connect the LMP91200EVAL to the SPIO4 board through the SPIO-GPSI16 connector, aligning the boards by the white arrow.