Configurable Analog Front-End (AFE) Potentiostat for Electrochemical Sensors – Ultra-low-power programmable analog front-end designed for electrochemical gas sensors, toxic gas detection, air quality monitoring, industrial safety systems, wearable health devices, environmental monitoring, and embedded sensing applications. The Texas Instruments LMP91000 integrates a complete potentiostat and transimpedance amplifier (TIA), enabling direct interfacing with 2-electrode galvanic and 3-electrode amperometric chemical sensors. Operates from a 2.7 V to 5.25 V supply while consuming less than 10 µA typical supply current, making it ideal for battery-powered systems. Features a programmable TIA gain (2.75 kΩ to 350 kΩ), programmable load resistor, programmable cell bias, I²C-compatible interface, integrated temperature sensor, sensor diagnostics, and support for sensor currents from 5 µA to 750 µA full scale. Housed in a compact 14-pin WSON (4 × 4 mm) package and specified for operation over a −40°C to +85°C temperature range. #TexasInstruments #LMP91000SDXNOPB #LMP91000 #AnalogFrontEnd #Potentiostat #ElectrochemicalSensor #GasSensor #AirQualityMonitoring #IndustrialSafety #I2C #LowPower #EmbeddedSystems

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