LM75BD

The LM75BD from Texas Instruments is an industry-standard digital temperature sensor with an integrated sigma-delta analog-to-digital converter (ADC) and I2C interface. It provides 9-bit digital temperature readings with a maximum accuracy of ±2°C from -25°C to 100°C, and ±3°C over the full -55°C to 125°C range. The device operates with a single supply voltage from 2.7 V to 5.5 V. Communication is handled via a 2-wire interface that supports speeds up to 400 kHz. The LM75BD includes three address pins, enabling up to eight devices to be connected on the same bus. It also features a dedicated overtemperature output (O.S.) with programmable limit and hysteresis, and programmable fault tolerance.

This temperature sensor is available in SOIC (D) and VSSOP (DGK) packages, both designed for surface mounting. Its no external components requirement, shutdown mode for power minimization, and power-up defaults that permit stand-alone operation as a thermostat make it suitable for various applications requiring precise temperature monitoring and control. The wide temperature and supply range, combined with the I2C interface, make the LM75BD ideal for embedded systems and thermal management solutions.