Silicon temperature sensor TMP117

semiconductorSMDI2C

Product overview
The TMP117 is a high-precision digital temperature sensor designed for medical‑grade applications including electronic patient thermometers. It provides 16-bit temperature readings (0.0078 °C resolution) and up to ±0.1 °C accuracy from −20 °C to 50 °C without calibration. The device features an I2C/SMBus-compatible interface, programmable temperature alerts, one-shot conversion, support for up to four addresses on a single bus, and an integrated 48-bit general-purpose EEPROM. Low current consumption (typical 3.5 µA) minimizes self-heating, making it suitable for battery-powered and wearable systems.

Applications

• Electronic patient thermometers and clinical monitoring
• Wearable and patch temperature measurement
• RTD replacement (PT100/PT500/PT1000) in industrial and consumer devices
• Low-power temperature monitoring in medical and battery-powered systems

Key features

• High accuracy: up to ±0.1 °C (−20 °C to 50 °C)
• 16-bit resolution: 0.0078 °C per LSB
• Low power: typical 3.5 µA (1 Hz); 150 nA shutdown current
• Wide supply range: 1.7 V–5.5 V (limited/full ranges)
• I2C and SMBus compatible interface; supports up to 4 device addresses on one bus
• Programmable temperature alert limits and selectable averaging
• Digital offset for system-level correction
• 48-bit integrated general-purpose EEPROM
• Suitable as a single-chip RTD replacement (PT100, PT500, PT1000)

Parameters (summary)
Local sensor accuracy (max): 0.1, 0.2
Type: Local
Operating temperature range (°C): -55 to 150
Supply voltage (min) (V): 1.8 (1.7 in limited range)
Supply voltage (max) (V): 5.5
Interface type: I2C, SMBus
Features: ALERT, EEPROM, NIST traceable, One-shot conversion
Supply current (max) (µA): 5
Temp resolution (max) (bps): 16
Remote channels (#): 0
Addresses: 4
Rating: Catalog

Package options

• DSBGA (YBG) — 6 pins — 1.4136 mm² (0.95 x 1.488)
• WSON (DRV) — 6 pins — 4 mm² (2 x 2)

Compliance & traceability
100% production tested on NIST-traceable setups and verified with ISO/IEC 17025-calibrated equipment. Meets ASTM E1112 and ISO 80601-2-56 requirements for electronic patient thermometers.