Temperature Sensor with I2C/SMBus Interface in Industry Standard LM75 Form Factor & Pinout

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Product details

Parameters

Local sensor accuracy (Max) (+/- C) 1.5 Operating temperature range (C) -40 to 125 Supply voltage (Min) (V) 2.7 Supply voltage (Max) (V) 5.5 Device type Local Interface I2C, SMBus, 2-Wire Supply current (Max) (uA) 85 Temp resolution (Max) (bits) 12 Features ALERT, NIST traceable Remote channels (#) 0 Addresses 8 Rating Catalog Approx. price (US$) 0.24 | 1ku open-in-new Find other Digital temperature sensors

Package | Pins | Size

SOIC (D) 8 19 mm² 3.91 x 4.9 VSSOP (DGK) 8 15 mm² 3 x 4.9 open-in-new Find other Digital temperature sensors

Features

  • TMP175: 27 Addresses
  • TMP75: 8 Addresses, NIST Traceable
  • Digital Output: SMBus™, Two-Wire™, and I2C
    Interface Compatibility
  • Resolution: 9 to 12 Bits, User-Selectable
  • Accuracy:
    • ±1°C (Typical) from –40°C to 125°C
    • ±2°C (Maximum) from –40°C to 125°C
  • Low Quiescent Current: 50-µA, 0.1-µA Standby
  • Wide Supply Range: 2.7 V to 5.5 V
  • Small 8-Pin MSOP and 8-Pin SOIC Packages
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Description

The TMP75 and TMP175 devices are digital temperature sensors ideal for NTC and PTC thermistor replacement. The devices offer a typical accuracy of ±1°C without requiring calibration or external component signal conditioning. IC temperature sensors are highly linear and do not require complex calculations or look-up tables to derive the temperature. The on-chip 12-bit ADC offers resolutions down to 0.0625°C. The devices are available in the industry standard LM75 SOIC-8 and MSOP-8 footprint.

The TMP175 and TMP75 feature SMBus, Two-Wire, and I2C interface compatibility. The TMP175 device allows up to 27 devices on one bus. The TMP75 allows up to eight 8 on one bus. The TMP175 and TMP75 both feature an SMBus Alert function.

The TMP175 and TMP75 devices are ideal for extended temperature measurement in a variety of communication, computer, consumer, environmental, industrial, and instrumentation applications.

The TMP175 and TMP75 devices are specified for operation over a temperature range of –40°C to 125°C.

The TMP75 production units are 100% tested against sensors that are NIST traceable and are verified with equipment that are NIST traceable through ISO/IEC 17025 accredited calibrations.

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Technical documentation

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Software development

DRIVERS & LIBRARIES Download
Linux Driver for I2C temperature sensors
LM75SW-LINUX The Linux driver support LM75 compatible Temperature Sensors. The Linux driver supports communication through the I2C bus and interfaces with the Hardware Monitoring sub-system.
Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

Supported Devices:
  • LM75A
  • TMP100
  • TMP101
  • (...)

Design tools & simulation

SIMULATION MODELS Download
SLOM202.ZIP (22 KB) - IBIS Model

Reference designs

REFERENCE DESIGNS Download
High efficiency power supply architecture reference design for protection relay processor module
TIDA-010011 — This reference design showcases various power architectures for generating multiple voltage rails for an application processor module, requiring >1A load current and high efficiency . The required power supply is generated using 5-, 12- or 24-V DC input from the backplane. Power supplies are (...)
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REFERENCE DESIGNS Download
Accurate Temperature, Light Sensing, and Diagnostics Reference Design for Smart Grid Applications
TIDA-00811 — This reference design provides accurate measurements of ambient light intensity used to detect arc flash faults with a fast response of 1 ms, protecting or minimizing damages to power distribution switchgear. This design also monitors temperature (using switch, analog, digital or remote ), humidity (...)
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CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options
VSSOP (DGK) 8 View options

Ordering & quality

Support & training

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Videos

TI Precision Labs - Temperature Sensors: Interchangeability

This section of the TI Precision Labs - Temperature Sensors series explains considerations in sensor interchangeability.

Posted: 18-Jan-2019
Duration: 06:24

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