TMP37

Low Voltage Temperature Sensor Vo=500
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Product Details

The TMP35/TMP36/TMP37 are low voltage, precision centigrade temperature sensors. They provide a voltage output that is linearly proportional to the Celsius (centigrade) temperature. The TMP35/ TMP36/TMP37 do not require any external calibration to provide typical accuracies of ±1°C at +25°C and ±2°C over the −40°C to +125°C temperature range.

The low output impedance of the TMP35/TMP36/TMP37 and its linear output and precise calibration simplify interfacing to temperature control circuitry and ADCs. All three devices are intended for single-supply operation from 2.7 V to 5.5 V maximum. The supply current runs well below 50 μA, providing very low self-heating—less than 0.1°C in still air. In addition, a shutdown function is provided to cut the supply current to less than 0.5 μA.

The TMP35 is functionally compatible with the LM35/LM45 and provides a 250 mV output at 25°C. The TMP35 reads temperatures from 10°C to 125°C. The TMP36 is specified from −40°C to +125°C, provides a 750 mV output at 25°C, and operates to 125°C from a single 2.7 V supply. The TMP36 is functionally compatible with the LM50. Both the TMP35 and TMP36 have an output scale factor of 10 mV/°C.

The TMP37 is intended for applications over the range of 5°C to 100°C and provides an output scale factor of 20 mV/°C. The TMP37 provides a 500 mV output at 25°C. Operation extends to 150°C with reduced accuracy for all devices when operating from a 5 V supply.

The TMP35/TMP36/TMP37 are available in low cost 3-lead TO-92, 8-lead SOIC_N, and 5-lead SOT-23 surface-mount packages.


Product Lifecycle

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At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

TMP37 Material Declaration
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Overview

6 Reviews
6 out of 6 (100%) customers recommend this product.
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Most Helpful Review

by Demax
endurance testing from -40°C to 100°C for 20 cycles

Most Recent Review

by userone
This integrated circuit has a very good accuracy and adapting it can be used under water, very good performance when coupled to a microcontroller or ADC module

All Reviews

by userone, 8 Oct 14
great performance
This integrated circuit has a very good accuracy and adapting it can be used under water, very good performance when coupled to a microcontroller or ADC module
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by kav, 11 Sep 14
Great Product
Great Product. Gives access to the features listed in the data sheet. Easy and simple wiring.
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by jofr6, 3 Jul 14
does what is must
Simple analog sensor that does the job. Easy to be build in an all analog circuit.
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by gusi, 17 Apr 14
fantastic!!
is the temperature sensor easier to use besides being very accurate
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by Jon, 12 Nov 13
Excellent product for low voltage applications
The TMP37 is a very useful sensor for low voltage, low power applications. The response time is fast and its ability to operate down to low voltages used modern microcontrollers is a clear advantage of the TMP37 above more standard parts such as the LM35. The 50uA max output current can be a limitation, but can be easily buffered if more is needed. The accuracy and resolution of 20mV also makes measurement of lower temperature variations very easy.
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by Demax, 2 Jul 13
temp sensor TMP3X
endurance testing from -40°C to 100°C for 20 cycles
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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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