TMP123

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±1.5°C 2.7V to 5.5V digital temperature sensor with SPI interface and -55 to 125°C

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Product details

Parameters

Local sensor accuracy (Max) (+/- C) 1.5 Operating temperature range (C) -55 to 125 Supply voltage (Min) (V) 2.7 Supply voltage (Max) (V) 5.5 Device type Local Interface SPI, Microwire Supply current (Max) (uA) 50 Temp resolution (Max) (bits) 12 Remote channels (#) 0 Addresses NA Rating Catalog Approx. price (US$) 0.84 | 1ku open-in-new Find other Digital temperature sensors

Package | Pins | Size

SOT-23 (DBV) 6 5 mm² 2.9 x 1.6 open-in-new Find other Digital temperature sensors

Features

  • DIGITAL OUTPUT: SPI-Compatible Interface
  • RESOLUTION: 12-Bit + Sign, 0.0625°C
  • ACCURACY: ±1.5°C from –25°C to +85°C (max)
  • LOW QUIESCENT CURRENT: 50 µA (max)
  • WIDE SUPPLY RANGE: 2.7V to 5.5V
  • TINY SOT23-6 PACKAGE
  • OPERATION TO 150°C
  • APPLICATIONS
    • POWER-SUPPLY TEMPERATURE MONITORING
    • COMPUTER PERIPHERAL THERMAL PROTECTION
    • NOTEBOOK COMPUTERS
    • CELL PHONES
    • BATTERY MANAGEMENT
    • OFFICE MACHINES

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Description

The TMP121 and TMP123 are SPI-compatible temperature sensors available in a tiny SOT23-6 package. Requiring no external components, the TMP121 and TMP123 are capable of measuring temperatures within 2°C of accuracy over a temperature range of –40°C to +125°C. Low supply current, and a supply range from 2.7V to 5.5V, make the TMP121 and TMP123 excellent candidates for low-power applications.

The TMP121 and TMP123 are ideal for extended thermal measurement in a variety of communication, computer, consumer, environmental, industrial, and instrumentation applications.

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Technical documentation

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Type Title Date
* Datasheet TMP121, TMP123: 1.50C Accurate Digital Temperature Sensor with SPI Interface datasheet (Rev. C) Feb. 03, 2005
Technical articles How to choose the right thermistor for your temperature sensing application Feb. 12, 2020
Technical articles How to enable thermal safety for automotive infotainment and cluster systems Oct. 15, 2019
Technical articles Driving industrial innovation with small-size sensors Sep. 12, 2019
Technical articles How sensor technology is evolving to meet cold chain needs Jun. 18, 2018

Design & development

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SOT-23 (DBV) 6 View options

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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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