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LMP91200 Datasheet Configurable Afe

Manufacturer: Texas Instruments

Overview: Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LMP91200 SNAS571E – JANUARY 2012 – REVISED FEBRUARY 2016 LMP91200 Configurable AFE for Low-Power Chemical-Sensing Applications.

General Description

The LMP91200 device is a sensor AFE for use in low-power, analytical-sensing applications.

The LMP91200 is designed for 2-electrode sensors.

This device provides all of the functionality needed to detect changes based on a delta voltage at the sensor.

Key Features

  • 1 Active Guarding.
  • Key Specifications Unless otherwise noted, typical values at TA = 25°C, VS = (VDD-GND) = 3.3 V.
  • pH Buffer Input Bias Current (0 < VINP < 3.3 V).
  • Maximum at 25°C: ±125 fA.
  • Maximum at 85°C: ±445 fA.
  • pH Buffer Input Bias Current (.
  • 500 mV < VINP.
  • VCM < 500 mV), VS = (VDD.
  • GND) = 0 V.
  • Maximum at 25°C: ±600 fA.
  • Maximum at 85°C: ±6.5 pA.
  • pH Buffer Input Offset Voltage: ±200 µV.

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LMP91200 Distributor