TI LMP91050 Configurable AFE
Texas Instruments LMP91050 Configurable AFE for NDIR Sensing Applications is a programmable integrated Sensor Analog Front End optimized for thermopile sensors, as typically used in Nondispersive Infrared (NDIR) applications. TI LMP91050 AFE provides a complete signal path solution between a sensor and microcontroller that generates an output voltage proportional to the thermopile voltage. The LMP91050's programmability enables it to support multiple thermopile sensors with a single design as opposed to the multiple discrete solutions. TI LMP91050 features a programmable gain amplifier (PGA), "dark phase" offset cancellation, and an adjustable common mode generator (1.15V or 2.59V) that increases output dynamic range.