12-bit local temperature sensor with I²C/SMBus interface
The Texas Instruments TMP102AIDRLT is a digital local temperature sensor with 12-bit resolution, communicating over an I²C/SMBus interface. It is part of the TMP102 family and comes in a surface-mount SOT-563 package.
Accuracy over temperature — the spec that drives the error budget
This means the worst-case error stack-up at the temperature extremes is ±3°C, not the ±2°C typical at 25°C — a critical distinction when budgeting thermal error in a system that sees the full range. The 12-bit resolution provides 0.0625°C per LSB, so the digital output granularity is finer than the sensor's absolute accuracy. The limiting factor for measurement fidelity is the ±3°C low-end accuracy, not the resolution. Built-in features include One-Shot mode for single conversions on demand, an Output Switch for alert/threshold functions, and Shutdown Mode to reduce quiescent current between readings — useful for battery-powered or duty-cycled applications.
Active production — sourcing posture for BOM planning
The SOT-563 footprint (Supplier Device Package SOT-563) is a common small-outline transistor package, easily integrated into existing PCB layouts.