Top

Product details

Parameters

Local sensor accuracy (Max) (+/- C) 0.5 Type Local Operating temperature range (C) -40 to 125 Supply voltage (Min) (V) 1.4 Interface type I2C, SMBus, 2-Wire Supply voltage (Max) (V) 3.6 Supply current (Max) (uA) 10 Temp resolution (Max) (bits) 12 Features ALERT, One-shot conversion, NIST traceable Remote channels (#) 0 Addresses 4 Rating Catalog open-in-new Find other Digital temperature sensors

Package | Pins | Size

SOT-5X3 (DRL) 6 2 mm² 1.65 x 1.2 open-in-new Find other Digital temperature sensors

Features

  • TMP112A Accuracy Without Calibration :
    • 0.5°C (Maximum) From 0°C to +65°C (3.3 V)
    • 1.0°C (Maximum) From –40°C to +125°C
  • TMP112B Accuracy Without Calibration :
    • 0.5°C (Maximum) From 0°C to +65°C (1.8 V)
    • 1.0°C (Maximum) From –40°C to +125°C
  • TMP112N Accuracy Without Calibration:
    • 1.0°C (Maximum) From –40°C to +125°C
  • SOT563 Package (1.6 mm × 1.6 mm)
  • Low Quiescent Current:
    • 10-µA Active (Maximum), 1-µA Shutdown (Maximum)
  • Supply Range: 1.4 V to 3.6 V
  • Resolution: 12 Bits
  • Digital Output: SMBus™, Two-Wire, and I2C Interface Compatibility
  • NIST Traceable

All trademarks are the property of their respective owners.

open-in-new Find other Digital temperature sensors

Description

The TMP112 family of devices are digital temperature sensors designed for high-accuracy, low-power, NTC/PTC thermistor replacements where high accuracy is required. The TMP112A and TMP112B offers 0.5°C accuracy and are optimized to provide the best PSR performance for 3.3V and 1.8V operation respectively, while TMP112N offers 1°C accuracy. These temperature sensors are highly linear and do not require complex calculations or lookup tables to derive the temperature. The on-chip 12-bit ADC offers resolutions down to 0.0625°C.

The 1.6-mm × 1.6-mm SOT563 package is 68% smaller footprint than an SOT23 package. The TMP112 family features SMBus, two-wire and I2C interface compatibility, and allows up to four devices on one bus. The device also features an SMBus alert function. The device is specified to operate over supply voltages from 1.4 to 3.6 V with the maximum quiescent current of 10 µA over the full operating range.

The TMP112 family is designed for extended temperature measurement in communication, computer, consumer, environmental, industrial, and instrumentation applications. The device is specified for operation over a temperature range of –40°C to +125°C.

The TMP112 family 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.

open-in-new Find other Digital temperature sensors
Download
Information

Request more information

NIST calibration documentation is available. Request now

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 16
Type Title Date
* Datasheet TMP112x High-Accuracy, Low-Power, Digital Temperature Sensors With SMBus and Two-Wire Serial Interface in SOT563 datasheet (Rev. I) Dec. 21, 2018
Application notes How to Boost Your CPU, GPU, and SoC Performance Through Thermal Accuracy Sep. 22, 2020
Technical articles How to choose the right thermistor for your temperature sensing application Feb. 12, 2020
Application notes High-Performance Processor Die Temperature Monitoring (Rev. A) Oct. 17, 2019
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
User guides TMP112EVM User's Guide Sep. 09, 2019
Application notes Low-Power Design Techniques for Temperature-Sensing Applications Jun. 06, 2019
Application notes How to monitor board temperature Jan. 28, 2019
Application notes Temperature sensing fundamentals Jan. 28, 2019
Application notes Temperature sensors: PCB guidelines for surface mount devices (Rev. A) Jan. 18, 2019
Application notes Wearable Temp-Sensing Layout Considerations Optimized for Thermal Response (Rev. B) Oct. 23, 2018
Application notes Ambient Temperature Measurement Layout Considerations Jul. 16, 2018
Application notes Calculating Useful Lifetimes of Temperature Sensors Jul. 06, 2018
Technical articles How sensor technology is evolving to meet cold chain needs Jun. 18, 2018
User guides TMP112EVM Evaluation Board and Software Tutorial Aug. 20, 2014

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
10
Description

Speed up your op amp prototyping and testing with the DIP-Adapter-EVM, which provides a fast, easy and inexpensive way to interface with small, surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them directly to existing circuits.

The (...)

Features
  • Simplifies prototyping of SMT IC’s
  • Supports 6 common package types
  • Low Cost
EVALUATION BOARDS Download
document-generic User guide
49
Description
This NFC-DATALOGGER-EVM Provides a complete reference design
for asset tracking and cold chain data logging with
over 5 year battery life and a simple NFC (Near Field
Communication) interface for configuration and read
back. For maximum flexibility, the system offers the
choice of multiple sensor (...)
Features
  • > 5 Year Battery Life on a CR2032 coin cell
  • RF430CL33xH NFC Dynamic Tag Type 4B Compliant Communication
  • NFC configuration and data read back
  • Multiple Sensor Options
- Ambient Light (OPT3001)

- Temperature+ Humidity (HDC1000)

  • Up to 64KB of non-volatile FRAM memory
EVALUATION BOARDS Download
document-generic User guide
Description
The TMP112EVM allows users to evaluate the performance of the TMP112 digital temperature sensor. The EVM comes in a USB stick form factor, with an onboard MSP430F5528 microcontroller that interfaces with both the host computer and the TMP112 device using an I2C interface. The module is designed with (...)
Features
  • Evaluate TMP112 device using provided software or prototype on standard 0.1” breadboards
  • PC software powered by TI GUI Composer supports Windows, Mac and Linux
  • Compatible with TMP102
GUIS FOR EVALUATION MODULES (EVM) Download
SBOC438.ZIP (147351 KB)

Software development

CODE EXAMPLES & DEMOS Download
SBOC486.ZIP (52 KB)
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
SBFM009.ZIP (63 KB) - IBIS Model

Reference designs

REFERENCE DESIGNS Download
Vehicle occupant detection reference design
TIDEP-01001 This reference design demonstrates the use of the AWR6843 60GHz single-chip mmWave sensor with integrated DSP, as a Vehicle Occupant Detection (VOD) and Child Presence Detection (CPD) Sensor enabling the detection of life forms in a vehicle. This design provides a reference software processing chain (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Traffic Monitoring Object Detection and Tracking Reference Design Using mmWave Radar Sensor
TIDEP-0090 — This reference design demonstrates how our single-chip millimeter-wave (mmWave) technology can be used for robust, long-range sensing in traffic monitoring and other applications. The reference design can use the  IWR1642BOOST evaluation module (EVM) or the IWR1843BOOST evaluation module (EVM (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Beamsteering for corner radar reference design
TIDEP-01021 This reference design provides a foundation for blind-spot detection (BSD), cross-traffic alert (CTA), lane-change assist (LCA), and traffic-jam assist (TJA) applications using the AWR1843BOOST evaluation module (EVM). This design allows the estimation (in the azimuthal and elevation plane (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Short-range radar (SRR) reference design
TIDEP-0092 The TIDEP-0092 reference design provides a foundation for short-range radar (SRR) applications using the AWR1642 evaluation module (EVM). This design allows the estimation and tracking of the position (in the azimuthal plane) and velocity of objects in its field of view up to 80 m,  travelling (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Automated parking system reference design using 77-GHz mmWave sensor
TIDEP-01011 This reference design demonstrates the use of AWR1843, a 77-GHz single-chip mmWave sensor with integrated DSP, MCU, and hardware accelerator as an automated parking sensor, which enables robust detection of objects around a car in challenging parking and environmental conditions. With a range (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Obstacle detection reference design using 77-GHz mmWave sensor
TIDEP-0104 This reference design demonstrates the use of the AWR1642 single-chip mmWave sensor with integrated DSP as an obstacle-detection sensor for the car door and trunk, enabling applications like automatic car door openers and intelligent car doors that can accurately detect obstacles/objects in a (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Multi-Parameter Bio-Signal Monitor Reference Design For Personal Monitoring
TIDM-BIOSIGNMONITOR The Multi-Parameter Bio-signal Monitor (MPBSM) is a proof-of-concept Evaluation Module (EVM) that is capable of measuring three of the four primary vital signs. The MPBSM proof of concept can directly measure Electrocardiogram (ECG), Galvanic Skin Response (GSR), and skin temperature. The MPBSM (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Ultralow Power Multi-sensor Data Logger with NFC Interface Reference Design
TIDA-00524 TIDA-00524 provides a complete reference design for asset tracking & cold chain data logging with over 5 year battery life and a simple NFC (Near Field Communication) interface for configuration & read back.

For maximum flexibility, the system offers the choice of multiple sensor configurations to (...)

document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Capacitive-Based Human Proximity Detection for System Wake-Up & Interrupt Reference Design
TIDA-00220 This TI Design uses Texas Instruments' capacitive-to-digital converter technology to provide a high-precision method to wake up systems when human interaction occurs. TIDA-00220 demonstrates techniques for alternative sensor design, environmental compensation, and electromagnetic interference (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOT-5X3 (DRL) 6 View options

Ordering & quality

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos

Related videos