Home Sensors Temperature sensors Analog temperature sensors
Home
Sensors
Temperature sensors
Analog temperature sensors

LMT84

ACTIVE

1.5V-Capable, 10 uA Analog Output Temperature Sensor in SC70 and TO-92

Order now
Data sheet

LMT84

ACTIVE
Data sheet Order now

Product details

Local sensor accuracy (max) 2.7 Operating temperature range (°C) -50 to 150 Supply voltage (min) (V) 1.5 Supply voltage (max) (V) 5.5 Supply current (max) (µA) 8.1 Interface type Analog output Sensor gain (mV/°C) -0.0055 Rating Catalog Features Industry standard pinout
Local sensor accuracy (max) 2.7 Operating temperature range (°C) -50 to 150 Supply voltage (min) (V) 1.5 Supply voltage (max) (V) 5.5 Supply current (max) (µA) 8.1 Interface type Analog output Sensor gain (mV/°C) -0.0055 Rating Catalog Features Industry standard pinout
SOT-SC70 (DCK) 5 2.5 mm² 2 x 1.25 TO-92 (LP) 3 19.136 mm² 5.2 x 3.68 TO-92 (LPG) 3 6.08 mm² 4 x 1.52
  • LMT84LPG (TO-92S package) has a Fast Thermal Time Constant, 10-s Typical (1.2 m/s Airflow)
  • Very Accurate: ±0.4°C Typical
  • Low 1.5-V Operation
  • Average Sensor Gain of -5.5 mV/°C
  • Low 5.4-µA Quiescent Current
  • Wide Temperature Range: –50°C to 150°C
  • Output is Short-Circuit Protected
  • Push-Pull Output With ±50-µA Drive Capability
  • Footprint Compatible With the Industry-Standard LM20/19 and LM35 Temperature Sensors
  • Cost-Effective Alternative to Thermistors
  • LMT84LPG (TO-92S package) has a Fast Thermal Time Constant, 10-s Typical (1.2 m/s Airflow)
  • Very Accurate: ±0.4°C Typical
  • Low 1.5-V Operation
  • Average Sensor Gain of -5.5 mV/°C
  • Low 5.4-µA Quiescent Current
  • Wide Temperature Range: –50°C to 150°C
  • Output is Short-Circuit Protected
  • Push-Pull Output With ±50-µA Drive Capability
  • Footprint Compatible With the Industry-Standard LM20/19 and LM35 Temperature Sensors
  • Cost-Effective Alternative to Thermistors

The LMT84 is a precision CMOS temperature sensor with ±0.4°C typical accuracy (±2.7°C maximum) and a linear analog output voltage that is inversely proportional to temperature. The 1.5-V supply voltage operation, 5.4-µA quiescent current, and 0.7-ms power-on time enable effective power-cycling architectures to minimize power consumption for battery-powered applications such as drones and sensor nodes. The LMT84LPG through-hole TO-92S package fast thermal time constant supports off-board time-temperature sensitive applications such as smoke and heat detectors. The accuracy over the wide operating range and other features make the LMT84 an excellent alternative to thermistors.

For devices with different average sensor gains and comparable accuracy, refer to Comparable Alternative Devices for alternative devices in the LMT8x family.

The LMT84 is a precision CMOS temperature sensor with ±0.4°C typical accuracy (±2.7°C maximum) and a linear analog output voltage that is inversely proportional to temperature. The 1.5-V supply voltage operation, 5.4-µA quiescent current, and 0.7-ms power-on time enable effective power-cycling architectures to minimize power consumption for battery-powered applications such as drones and sensor nodes. The LMT84LPG through-hole TO-92S package fast thermal time constant supports off-board time-temperature sensitive applications such as smoke and heat detectors. The accuracy over the wide operating range and other features make the LMT84 an excellent alternative to thermistors.

For devices with different average sensor gains and comparable accuracy, refer to Comparable Alternative Devices for alternative devices in the LMT8x family.
open-in-new Find other Analog temperature sensors
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare products
Similar functionality to the compared device.
TMP235 ACTIVE 1C analog temperature sensor, 10 mV/C This product is an analog temperature sensor with mproved accuracy (±1.2°C) and larger gain (10mV/°C)

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 8
Type Title Date
* Data sheet LMT84 1.5-V, SC70/TO-92/TO-92S, Analog Temperature Sensors datasheet (Rev. E) PDF | HTML 20 Oct 2017
Technical article How to choose the right thermistor for your temperature sensing application 13 Feb 2020
Technical article How to enable thermal safety for automotive infotainment and cluster systems 15 Oct 2019
Technical article Driving industrial innovation with small-size sensors 12 Sep 2019
More literature SC Temp Sensors Challenge Precision RTDs and Thermistors in Build Automation (Rev. A) 08 May 2019
Technical article Predictive maintenance solutions for HVAC filter replacement – part 1 14 Nov 2016
More literature Analog Temperature Sensors 18 Apr 2013
EVM User's guide Using the LMT84-7 Evaluation Board 06 Feb 2013

Design & development

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

Evaluation board

LMT84-7EVM — EVM for LMT84, LMT85, LMT86 and LMT87 Temperature Sensor

The Texas Instruments LMT84-7EVM evaluation module (EVM) helps designers evaluate the operation and performance of the LMT84, LMT85, LMT86, and LMT87 analog temperature sensors.

User guide: PDF
Not available on TI.com
Calculation tool

LMT84 Look-Up Table

SNIC006.ZIP (5 KB)
Download
Reference designs

TIDA-01353 — Electronically Commutated Motor Reference Design for HVAC Blowers with Low BOM Cost

The TIDA-01353 reference design is a discrete MOSFET based three-phase ECM control module for driving brushless (BLDC) motors rated up to 375W in HVAC blower applications using a sensorless trapezoidal control method. The cycle-by-cycle overcurrent protection feature protects the power stage from (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-010008 — Flat-Clamp TVS based Reference Design for Protection Against Transient for Grid Applications

This reference design features multiple approaches for  protecting AC or DC analog input, DC analog output, AC or DC binary input, digital output with a high side or low side driver, LCD bias supply, USB interfaces (power and data) and onboard power supplies with 24, 12 or 5V input used in (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-010055 — Non-isolated power architecture with diagnostics reference design for protection relay modules

This reference design showcases non-isolated power supply architectures for protection relays with analog input/output and communication modules generated from 5-, 12-, or 24-V DC input. To generate the power supplies the design uses DC/DC converters with an integrated FET, a power module with an (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-01596 — Smart Thermostat Localized Heat Compensation for Ambient Temperature Sensing Reference Design

Localized thermostat heat generation is a leading cause for incorrect ambient temperature sensing near the return air plenum. This ultimately leads to overshoot in the HVAC cycle, resulting in costly energy bills. This reference design addresses this common problem associated with thermostat (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-01095 — 100W Dimmable DC-DC LED Driver with Daylight Harvesting and Wireless Connectivity Reference Design

This reference design is a tested DC/DC LED driver for high power and high-efficiency dimmable LED luminaires. It is built on a wireless SoC platform which can enable intensity adjustment through analog, PWM dimming and control using any BLE smart device or ZigBee. High bay and low bay LED (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00436 — 36V/1kW Brushless DC Motor Drive with Stall Current Limit of <1us Response Time Reference Design

This reference design is a power stage for brushless motors in battery-powered garden and power tools rated up to 1 kW, operating from a 10-cell lithium-ion battery with a voltage range from 36 to 42 V. The design uses 60V, N-channel NexFETsTM featuring a very low drain-to-source resistance (RDS_ON (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-01070 — HVAC Coil Airflow Sensor Reference Design for Predictive Maintenance in Air Filter Replacement

This design provides a reference for monitoring airflow efficiency and temperature through heat ventilation and air conditioner (HVAC) systems. The reference design is used in conjunction with solid state relays and piezoelectric vibration sensors to monitor and react accordingly to low airflow and (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00639 — 600V Uni-directional Current/Voltage/Power Monitoring for Solar Smart Combiner Box Reference Design

The TIDA-00639 reference design is a non-isolated high-side current and voltage sensing design for a smart combiner box in a grounded or ungrounded system.  The non-isolated current sensing topology enables accurate power monitoring for high voltage systems.  This design is optimized for (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00447 — 24V, 100W/30W Dual Sensorless Brushless DC Motor Drive Reference Design

TIDA-00447 is a 24V, dual Brushless DC (BLDC) motor drive reference design to be used in major home appliances to drive low voltage BLDC motors such as pumps and fans, e.g. for circulation pump and drain pump of dishwashers. The power stages of motor drive are designed for 100W and 30W of (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-01096 — High Efficiency Tunable White LED DC-DC Driver with Bluetooth Smart Connectivity Reference Design

This reference design is a tested DC/DC LED driver designed for tunable white LED luminaires. It is built on a wireless SoC platform which can enable intensity adjustment (dimming) and co-related color temperature (CCT) control using any BLE smart device. Tunable white-light luminaires (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
SOT-SC70 (DCK) 5 View options
TO-92 (LP) 3 View options
TO-92 (LPG) 3 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

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