Analog temperature sensor with a 10 mV/°C output — no digital bus, no configuration
The Texas Instruments LM45CIM3/NOPB is a precision analog temperature sensor that outputs a voltage linearly proportional to the Celsius temperature at a scale factor of 10 mV/°C. It is a local sensor — it measures its own die temperature — and delivers an analog voltage output that a microcontroller ADC or a comparator can read directly. No digital interface, no I²C or SPI configuration; just power it from 4V to 10V and read the voltage. The sensing temperature range is -20°C to 100°C, while the device itself is rated for operation from -40°C to 125°C, making it suitable for industrial environments where the sensor may be exposed to wider swings than the measured zone. Typical applications include thermal shutdown monitoring, fan control, battery temperature supervision, and general-purpose system temperature monitoring in motor drives, power supplies, and outdoor telecom equipment.
Lifecycle and sourcing — active, no end-of-life concern
The LM45CIM3/NOPB carries an Active product status from Texas Instruments. ROHS3 compliant. For BOM planning, this part is safe for new designs and production ramps.