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

LMT70A

ACTIVE

±0.1°C Matching Accuracy Precision Analog Temperature Sensor

Order now
Data sheet

LMT70A

ACTIVE
Data sheet Order now

Product details

Local sensor accuracy (max) 0.13 Rating Catalog Operating temperature range (°C) -55 to 150 Supply voltage (min) (V) 2 Supply voltage (max) (V) 5.5 Supply current (max) (µA) 12 Interface type Analog output Sensor gain (mV/°C) -5.2
Local sensor accuracy (max) 0.13 Rating Catalog Operating temperature range (°C) -55 to 150 Supply voltage (min) (V) 2 Supply voltage (max) (V) 5.5 Supply current (max) (µA) 12 Interface type Analog output Sensor gain (mV/°C) -5.2
DSBGA (YFQ) 4 1 mm² 1 x 1
  • Accuracy:
    • ±0.05°C (typ) or ±0.13°C (max) from 20°C to 42°C
    • ±0.2°C (max) from -20°C to 90°C
    • ±0.23°C (max) from 90°C to 110°C
    • ±0.36°C (max) from -55°C to 150°C
  • Wide Temperature Range: −55°C to 150°C
  • Matching of Two Adjacent LMT70A on Tape and Reel: 0.1°C (max) at 30°C
  • Very Linear Analog Temperature Sensor with Output Enable Pin
  • NTC Output Slope: -5.19 mV/°C
  • Output On/Off Switch with RDS on < 80 Ω
  • Wide Power Supply Range: 2.0 V to 5.5 V
  • Low Power Supply Current: 9.2 µA (typ)12 µA (max)
  • Ultra Small 0.88 mm by 0.88 mm 4-bump WLCSP (DSBGA) Package

All trademarks are the property of their respective owners.

  • Accuracy:
    • ±0.05°C (typ) or ±0.13°C (max) from 20°C to 42°C
    • ±0.2°C (max) from -20°C to 90°C
    • ±0.23°C (max) from 90°C to 110°C
    • ±0.36°C (max) from -55°C to 150°C
  • Wide Temperature Range: −55°C to 150°C
  • Matching of Two Adjacent LMT70A on Tape and Reel: 0.1°C (max) at 30°C
  • Very Linear Analog Temperature Sensor with Output Enable Pin
  • NTC Output Slope: -5.19 mV/°C
  • Output On/Off Switch with RDS on < 80 Ω
  • Wide Power Supply Range: 2.0 V to 5.5 V
  • Low Power Supply Current: 9.2 µA (typ)12 µA (max)
  • Ultra Small 0.88 mm by 0.88 mm 4-bump WLCSP (DSBGA) Package

All trademarks are the property of their respective owners.

The LMT70 is an ultra-small, high-precision, low-power CMOS analog temperature sensor with an output enable pin. Applications for the LMT70 include virtually any type of temperature sensing where cost-effective, high precision and low-power are required, such as Internet of Things (IoT) sensor nodes, medical thermometers, high-precision instrumentation and battery powered devices. The LMT70 is also a great replacement for RTD and precision NTC/PTC thermistors.

Its output enable pin allows multiple LMT70s to share one ADC channel, thus simplifying ADC calibration and reducing the overall system cost for precision temperature sensing. The LMT70 also has a linear and low impedance output allowing seamless interface to an off-the-shelf MCU/ADC. Dissipating less than 36µW, the LMT70 has ultra-low self-heating supporting its high-precision over a wide temperature range.

The LMT70A provides unparalleled temperature matching performance of 0.1°C (max) for two adjacent LMT70A's picked from the same tape and reel. Therefore, the LMT70A is an ideal solution for energy metering applications requiring heat transfer calculations.

The LMT70 is an ultra-small, high-precision, low-power CMOS analog temperature sensor with an output enable pin. Applications for the LMT70 include virtually any type of temperature sensing where cost-effective, high precision and low-power are required, such as Internet of Things (IoT) sensor nodes, medical thermometers, high-precision instrumentation and battery powered devices. The LMT70 is also a great replacement for RTD and precision NTC/PTC thermistors.

Its output enable pin allows multiple LMT70s to share one ADC channel, thus simplifying ADC calibration and reducing the overall system cost for precision temperature sensing. The LMT70 also has a linear and low impedance output allowing seamless interface to an off-the-shelf MCU/ADC. Dissipating less than 36µW, the LMT70 has ultra-low self-heating supporting its high-precision over a wide temperature range.

The LMT70A provides unparalleled temperature matching performance of 0.1°C (max) for two adjacent LMT70A's picked from the same tape and reel. Therefore, the LMT70A is an ideal solution for energy metering applications requiring heat transfer calculations.
filter Find other Analog temperature sensors
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device
LM94023 ACTIVE ±1.5°C Temperature Sensor with Multiple Gain, Class-AB Analog Output and WCSP Similar sensor gain (-5.5 mV/°C) in similar package. Lower accuracy (±1.5°C) for cost-optimized designs
LMT70 ACTIVE 0.1C analog temperature sensor, -5.19 mV/C, high-precision matched pairs, output enable pin Exact equivalent without device-to-device matching
Similar functionality to the compared device
TMP117 ACTIVE 0.1°C digital temperature sensor, 48-bit EEPROM, PT100/PT1000 RTD replacement Digital output (I2C) temperature sesor with 0.1°C accuracy
TMP119 ACTIVE ±0.08°C accurate digital temperature sensor in WCSP package with enhanced strain tolerance Digital output (I2C) temperature sesor with 0.08°C accuracy

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 3
Top documentation Type Title Format options Date
* Data sheet LMT70, LMT70A ±0.05°C Precision Analog Temperature Sensor, RTD and Precision NTC Thermistor IC datasheet (Rev. A) PDF | HTML 11 May 2015
Product overview Ultra-Small Temperature Sensor Comparison Guide (Rev. A) PDF | HTML 21 Jan 2025
Application note SC Temp Sensors Challenge Precision RTDs and Thermistors in Build Automation (Rev. A) 08 May 2019

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
Information included:
  • Fab location
  • Assembly location

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