Temperature (qC)

-55

-25

5

35

65

95

125

150

-0.5

-0.4

-0.3

-0.2

-0.1

0

0.1

0.2

0.3

0.4

0.5

D000

Average

Avg r3V

Min/Max Limit

ADC

Oscillator

Register

Bank

Serial

Interface

Control

Logic

ADD0

SCL

SDA

GND

V+

ALERT

Copyright © 2017, Texas Instruments Incorporated

EEPROM

Temperature

Sensor

Circuitry

Internal

Thermal

BJT

Product

Folder

Order

Now

Technical

Documents

Tools &

Software

Support &

Community

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. ADVANCE INFORMATION for pre-production products; subject to

change without notice.

TMP117

SNOSD82 – JUNE 2018

TMP117x High-Accuracy, Low-Power, Digital Temperature Sensor

1

1 Features

1

•

TMP117 High Accuracy Temperature Sensor

–

±0.1°C (Maximum) From 25°C to +50°C

–

±0.2°C (Maximum) From –40°C to +125°C

–

±0.3°C (Maximum) From –55°C to +150°C

•

TMP117M Medical Temperature Sensor

–

±0.1°C (Maximum) From 30°C to +45°C

•

TMP117N Industrial Temperature Sensor

–

±0.2°C (Maximum) From –40°C to +125°C

•

Temperature Operating Range: –55°C to +150°C

•

Low Power Consumption:

–

3.5-μA, 1-Hz Conversion Cycle

–

250-nA Shutdown Current

•

Supply Range: 1.8 V to 5.5 V

•

16-Bit Resolution: 0.0078°C (1 LSB)

•

Programmable Temperature Alert Limits

•

Digital Offset for System Correction

•

General-Purpose EEPROM: 48 Bits

•

NIST Traceability

•

2 Applications

•

Medical Grade: Meets ASTM E1112 and ISO

80601-2-56

•

Environmental Monitoring and Thermostats

•

Wearables

•

Asset Tracking and Cold Chain

•

Gas Meters and Heat Meters

•

Test and Measurement

•

RTDs Replacement: PT100, PT500, PT1000

•

Cold-Junction Compensation of Thermocouples

SPACER

3 Description

The TMP117 is a high-precision digital temperature

sensor. It is designed to exceed ASTM E1112

requirements for electronic patient thermometers. The

TMP117 provides a 16-bit temperature result with a

resolution of 0.0078°C and an accuracy of up to

±0.1°C across the temperature range of 25°C to 50°C

with

no

calibration.

The

TMP117

is

and

SMBus™-interface compatible, has programmable

alert functionality, and can support up to four devices

on a single bus. Integrated EEPROM is included for

device

programming

with

an

additional

48-bits

memory available for general use.

The

low

power

consumption

of

the

TMP117

minimizes the impact of self-heating on measurement

accuracy. The TMP117 operates from 1.8 V to 5.5 V

and typically consumes 3.5 μA.

For non-medical applications, the TMP117 can serve

as a single chip digital alternative to a Platinum RTD.

With an accuracy of ±0.2°C accuracy from –55°C to

150°C, the TMP117 offers comparable if not better

accuracy than can be achieved with a Class A RTD,

while only using a fraction of the power of the power

typically needed for a PT100 RTD. The TMP117

simplifies the design effort by removing many of the

complexities of RTDs such as precision references,

matched

traces,

complicated

algorithms,

and

calibration.

The TMP117 units are 100% tested on a production

setup that is NIST traceable and verified with

equipment that is calibrated to ISO/IEC 17025

accredited standards.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TMP117

WSON (6)

2.00 mm × 2.00 mm

DSBGA (6)

1.00 mm × 1.60 mm

(1) For all available packages, see the package option addendum

at the end of the data sheet.

Functional Block Diagram

Temperature Accuracy