Dual-interface local/remote sensor for multi-point thermal monitoring
The ADT7316ARQZ-REEL7 is a 12-bit digital temperature sensor from Analog Devices that measures both its own die temperature and an external diode-connected transistor, covering a -40°C to 120°C range on both channels. It speaks I²C/SMBus and SPI from the same pins — a single BOM line can serve a legacy I²C master or a newer SPI controller without a level translator or a second P/N. The 12-bit resolution gives 0.0625°C per LSB, finer than the 10-bit ADT7411ARQZ-REEL7 (0.25°C/LSB) — relevant if the system logs temperature trends rather than just trip thresholds.
Accuracy window and what it means for your thermal budget
For a system that needs ±2°C or tighter across the full temperature sweep, this part is not the fit — look at the ADT7301ARMZ-REEL7 (±1°C typical) but note it is local-only and SPI-only. The output switch feature lets the sensor drive a logic input directly without an external comparator — useful for overtemperature interrupt or fan-control trigger.
Package, footprint, and supply rail flexibility
Shutdown mode cuts supply current to near zero for battery sleep; standby keeps the digital interface alive while stopping conversion — the standby mode is useful when the bus master polls the sensor on a schedule.
Active lifecycle and compliance posture
Cut Tape is for prototype or low-volume builds.