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LMT88

ACTIVE

±4°C analog output temperature sensor with -11.77-mV/°C gain

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Data sheet

LMT88

ACTIVE
Data sheet Order now

Product details

Local sensor accuracy (max) 4 Operating temperature range (°C) -55 to 130 Supply voltage (min) (V) 2.4 Supply voltage (max) (V) 5.5 Supply current (max) (µA) 7 Interface type Analog output Sensor gain (mV/°C) -11.77 Rating Catalog Features Industry standard pinout
Local sensor accuracy (max) 4 Operating temperature range (°C) -55 to 130 Supply voltage (min) (V) 2.4 Supply voltage (max) (V) 5.5 Supply current (max) (µA) 7 Interface type Analog output Sensor gain (mV/°C) -11.77 Rating Catalog Features Industry standard pinout
SOT-SC70 (DCK) 5 4.2 mm² 2 x 2.1
  • Cost-Effective Alternative to Thermistors
  • Rated for Full −55°C to 130°C Range
  • Available in an SC70 Package
  • Predictable Curvature Error
  • Suitable for Remote Applications
  • Cost-Effective Alternative to Thermistors
  • Rated for Full −55°C to 130°C Range
  • Available in an SC70 Package
  • Predictable Curvature Error
  • Suitable for Remote Applications

The LMT88 device is a precision analog output CMOS integrated-circuit temperature sensor that operates over a temperature range of −55°C to 130°C . The power supply operating range is 2.4 V to 5.5 V. The transfer function of LMT88 is predominately linear, yet has a slight predictable parabolic curvature. The accuracy of the LMT88 when specified to a parabolic transfer function is typically ±1.5°C at an ambient temperature of 30°C. The temperature error increases linearly and reaches a maximum of ±2.5°C at the temperature range extremes. The temperature range is affected by the power supply voltage. At a power supply voltage of 2.7 V to 5.5 V, the temperature range extremes are 130°C and −55°C. Decreasing the power supply voltage to 2.4 V changes the negative extreme to −30°C, while the positive remains at 130°C.

The LMT88 quiescent current is less than 10 μA. Therefore, self-heating is less than 0.02°C in still air. Shutdown capability for the LMT88 is intrinsic because its inherent low power consumption allows it to be powered directly from the output of many logic gates or does not necessitate shutdown at all.

The LMT88 is a cost-competitive alternative to thermistors.

The LMT88 device is a precision analog output CMOS integrated-circuit temperature sensor that operates over a temperature range of −55°C to 130°C . The power supply operating range is 2.4 V to 5.5 V. The transfer function of LMT88 is predominately linear, yet has a slight predictable parabolic curvature. The accuracy of the LMT88 when specified to a parabolic transfer function is typically ±1.5°C at an ambient temperature of 30°C. The temperature error increases linearly and reaches a maximum of ±2.5°C at the temperature range extremes. The temperature range is affected by the power supply voltage. At a power supply voltage of 2.7 V to 5.5 V, the temperature range extremes are 130°C and −55°C. Decreasing the power supply voltage to 2.4 V changes the negative extreme to −30°C, while the positive remains at 130°C.

The LMT88 quiescent current is less than 10 μA. Therefore, self-heating is less than 0.02°C in still air. Shutdown capability for the LMT88 is intrinsic because its inherent low power consumption allows it to be powered directly from the output of many logic gates or does not necessitate shutdown at all.

The LMT88 is a cost-competitive alternative to thermistors.
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Technical documentation

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Type Title Date
* Data sheet LMT88 2.4-V, 10-µA, SC-70 Temperature Sensor datasheet (Rev. A) PDF | HTML 31 Jan 2015
Application note SC Temp Sensors Challenge Precision RTDs and Thermistors in Build Automation (Rev. A) 08 May 2019
Technical article It may be small, but it’s powerful PDF | HTML 27 Oct 2016
More literature Analog Temperature Sensors 18 Apr 2013
EVM User's guide LMT88-LMT89EVM User's Guide 06 Feb 2013

Design & development

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

Evaluation board

LMT88-9EVM — LMT88 and LMT89 Temperature Sensor EVM

The Texas Instruments LMT88-9EVM evaluation module (EVM) helps designers evaluate the operation and performance of the LMT88 and LMT87 analog temperature sensors.

User guide: PDF
Not available on TI.com
Reference designs

TIDA-01292 — 650W Power Stage Without Heat Sink Reference Design for Low-Frequency Offline UPS and Inverters

This reference design is a 650-W inverter power stage designed for low-frequency (transformer-based), single-phase UPS operating from a 12-V battery. The design enables low form factor and high-efficiency implementation, taking advantage of the TI SMD MOSFET in a SON5x6 package with very low R (...)
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
SOT-SC70 (DCK) 5 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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