±0.4°C Temperature Sensor with Daisy-Chain UART, EEPROM, and Alert Function

±0.4°C Temperature Sensor with Daisy-Chain UART, EEPROM, and Alert Function - TMP107


The TMP107 digital output temperature sensor supports a total of 32 daisy-chained devices. Each sensor has a unique 5-bit address stored in electrically-erasable programmable memory (EEPROM). The TMP107 is capable of reading temperatures with a resolution of 0.015625°C, and is accurate to within ±0.4°C in the range from –20°C to +70°C. The TMP107 is ideal for replacing NTC and PTC thermistors where high accuracy is required.

The unique 5-bit address stored in the EEPROM is determined during the automated address assignment operation, and is based on the position of each sensor relative to the SMAART wire host. Multiple operating modes provide maximum flexibility in selecting between low power consumption for battery operation, and high update rates for real-time control applications.

The TMP107 is ideal for extended temperature measurement in a variety of industrial, instrumentation, communication, and environmental applications. The TMP107 is available in an 8-pin SOIC package and is specified for operation over a temperature range of −55°C to +125°C.


  • High Accuracy:
    • ±0.4°C (max) from –20°C to +70°C
    • ±0.55°C (max) from –40°C to +100°C
    • ±0.7°C (max) from –55°C to +125°C
  • High Resolution: 14 Bits (0.015625°C)
  • UART-Compatible, SMAART Wire™ Interface:
    • Allows Up To 32 Daisy-Chained Devices
  • EEPROM Memory for Unique Addressing, Trip Level Programming, and General-Purpose Storage
  • Continuous Conversion and Shutdown Mode for Power Savings
  • One-Shot Conversion Mode for Custom Update Rates and Power Savings
  • Programmable Alert feature
  • Operating Temperature Range: –55°C to +125°C
  • Operating Supply Range: 1.7 V to 5.5 V
  • Package: SOIC-8

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Parametrics Compare all products in Cable & Probe Temperature Sensors

Local Sensor Accuracy (Max) (+/- C)
Temp Resolution (Max) (bits)
Operating Temperature Range (C)
Supply Voltage (Min) (V)
Supply Voltage (Max) (V)
Supply Current (Typ) (uA)
TMP107 LMT01 LMT01-Q1 TMP103 TMP104
0.4    0.5    0.5    2    2   
14    13    13    8    8   
-55 to 125    -50 to 150    -40 to 125
-40 to 150   
-40 to 125    -40 to 125   
1.7    2    2    1.4    1.4   
5.5    5.5    5.5    3.6    3.6   
16    34    34    1.5    1.5   
UART    Pulse Count    Pulse Count    I2C, SMBus, 2-Wire    UART   
Shutdown    2 pin package    2 pin package    One-Shot Conversion
Programmable Alert
Window Comparator

Other qualified versions of TMP107

Version Part Number Definition
Automotive TMP107-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects