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1 Features

? High accuracy

– TMP126:

? ±0.25°C (maximum) from 20°C to 30°C

? ±0.3°C (maximum) from –20°C to 85°C

? ±0.4°C (maximum) from –40°C to 125°C

? ±0.5°C (maximum) from –55°C to 150°C

? ±0.75°C (maximum) from 150°C to 175°C

– TMP126N:

? ±0.8°C (maximum) from –40°C to 150°C

? Fast measurement intervals with no self-heating

concerns

? Operating temperature range:

– TMP126: –55°C to 175°C

– TMP126N: –40°C to 150°C

? Supply range: 1.62 V to 5.5 V

? Factory-calibrated

– NIST traceability

? Low power consumption

? Programmable temperature alert limits

? Temperature slew rate warning

? Optional Cyclic Redundancy Check (CRC)

? 3-wire SPI interface

2 Applications

? Wireless communication equipment

? Field transmitters

? Medical equipment

? Grid infrastructure

? Building and factory automation

? Servo drives

? Avionics

? Lasers

3 Description

The TMP126 is a 0.25°C accuracy digital temperature

that supports an ambient temperature range of –55°C

to 175°C. The TMP126 features a 14-bit signed

temperature resolution (0.03125°C per LSB) while

operating over a supply range of 1.62 V to 5.5 V.

With a fast conversion rate, low supply current, and a

simple 3-wire SPI compatible interface, the TMP126 is

designed for a wide range of applications.

The TMP126 includes additional advanced features

for increased reliability in harsh environments such

as optional CRC checksum for data integrity,

programmable alert limits, a temperature slew rate

warning, and an enhanced operational temperature

range. The device utilizes a NIST traceable factory

calibration for guaranteed accuracy and comes in

a small SOT package for close placement to heat

sources along with fast response times.