LMP91050 - Texas Instruments

LMP91050 Configurable AFE

The LMP91050 device is a programmable integrated Sensor Analog Front End (AFE) optimized for thermopile sensors, as typically used in NDIR applications. It provides a complete signal path solution between a sensor and microcontroller that generates an output voltage proportional to the thermopile voltage. The programmability of the LMP91050 enables it to sup.

Features

•1 Programmable Gain Amplifier
• Dark Signal Offset Cancellation
• Supports External Filtering
• Common-Mode Generator and 8-Bit DAC
• Key Specifications
  – Programmable Gain 167 to 7986 V/V
  – Low Noise (0.1 to 10 Hz) 0.1 μVRMS
  – Gain Drift 100 ppm/°C (Maximum)
  – Phase Delay Drift 500 ns (Maximum)
  – Power Supply Voltage Range 2.7 to 5.5 V 2 Applications
• NDIR Sensing
• Demand Control Ventilation
• Building Monitoring
• CO2 Cabin Control — Automotive
• Alcohol Detection — Automotive
• Industrial Safety and Security
• GHG and Freons Detection Platforms 3 Description The LMP91050 device is a pro.