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Original question:

WEBENCH® Tools/LMP91200: WEBENCH

WEBENCH® Tools/LMP91200: LMP912000 I2C connection

Rob Field
Prodigy 10 points
Part Number: LMP91200

Tool/software: WEBENCH® Design Tools

The datasheets readily available on the TI website show there is an I2C connection.

Datasheets on other distributor websites show the I2C is missing.

I believe there is no I2C on this product. Please confirm and advise.

  • 0
    TI__Guru* 91206 points

    Dear Rob - 

    You are correct, this device is an Analog Front End (AFE) for two-electrode sensors. The output of it is an analog signal which is fed into ADC of MCU or standalone ADC for further processing. There is no advertised I2C on this device.  Looks like pins 14, 15 and 16 originally were a SPI connection. If you look at the revision history on page 2 of the datasheet it notes that this was deleted in November of 2015. 

    http://www.ti.com/lit/ds/symlink/lmp91200.pdf