TMP1075 Digital Temperature Sensor

By Texas Instruments 126

TMP1075 Digital Temperature Sensor

Texas Instruments' TMP1075 is a low power, high-accuracy replacement to the industry-standard LM75 and TMP75 digital temperature sensors. It is available in SOIC-8 and VSSOP-8 packages and offers pin-to-pin and software compatibility to quickly upgrade any existing xx75 design. An additional package is 2 mm x 2 mm DFN reducing the PCB footprint by 79% compared to a SOIC package.

The TMP1075 provides 30% improvement in accuracy over standard xx75 temperature sensors and offers an on-chip 12-bit analog-to-digital converter (ADC) providing a temperature resolution of +0.0625°C. This sensor supports up to 32 device addresses and provides SMBus reset and alert function. It is compatible with two-wire SMBus I2C interfaces and ideal for temperature measurement in a variety of communication, computer, consumer, environmental, industrial, and instrumentation applications.

This device is specified for operation over a temperature range of -55°C to +125°C. It is 100% tested on a production setup that is NIST traceable and verified with equipment that is calibrated to ISO/IEC 17025 accredited standards.

Features
  • Accuracy:
    • ±1.5°C (max.) from -25°C to +100°C
    • ±2°C (max.) from -55°C to +125°C
  • Low power consumption:
    • 2.7 µA avg. current
    • 0.37 µA shutdown current
  • Wide supply range: 1.7 V to 5.5 V
  • Temperature independent of supply
  • Digital interface: SMBus, I2C
  • Coexists in I3C mixed fast-mode bus
  • Resolution: 12-bits
  • Supports up to 32 device addresses
  • Alert pin function
  • NIST traceability
Applications
  • Power-supply temperature monitoring
  • Computer peripheral thermal protection
  • Notebook computers
  • Cell phones
  • Battery management
  • Office machines
  • Thermostat controls
  • Environmental monitoring and HVAC
  • Electromechanical device temperature

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