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LMP91000

Tony Foster
Prodigy 20 points

Other Parts Discussed in Thread: LMP91000

Hello

I am looking to use the LMP91000 to drive a new sensor. I need to set the bias voltage such that the working electrode is 250mV + to the reference electrode. What value should I set Vref as on pin 11?

Regards,

Tony

  • 0
    Prodigy 145 points
    If you want the potential to be + 250 mV, you can set the percentage of supply voltage or reference voltage to a certain percentage of your supply voltage or reference voltage in the Variable Bias that is programmable through the I2C interface. That is, if you are using a 5.0 V source of power for your power supply, set the Variable bias to use 5% of the power supply and make sure to set the power supply as your Variable Bias reference.