±0.1°C ultra-small, high-precision, low-power CMOS analog temperature sensor
Product details
Parameters
Package | Pins | Size
Features
- 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
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Description
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.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The LMT70EVM allows users to evaluate the performance of the LMT70 temperature sensor. The EVM comes in a USB stick form factor package with an onboard MSP430F5528 microcontroller that interfaces with both the USB port and the LMT70 device. The EVM also comes with perforated slots that the user can (...)
Features
- Evaluate LMT70 analog temperature sensor performance
- Perforated slots to break apart LMT70 device from MSP430 microcontroller
- EVM comes in a USB stick form factor
- Easy to use GUI
Description
The SimpleLink™ MSP432P4111 LaunchPad™ development kit enables you to develop high-precision sensor node applications that benefit from the integrated high-precision ADC, low-power operation, and 2MB of integrated Flash to seamlessly attach multiple wireless connectivity options. It (...)
Features
- SimpleLInk MSP432P4111 32-bit Arm Cortex M4F MCU
- 40 pin LaunchPad standard leveraging the BoosterPack ecosystem
- On-Board XDS-110 emulator featuring EnergyTrace+ technology
- On-Board Segmented LCD Display
- 2 user buttons and 2 LEDs for user interaction
Software development
Design tools & simulation
Reference designs
Design files
Design files
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download TIDA-010019 BOM.pdf (107KB) -
download TIDA-010019 Assembly Drawing.pdf (540KB) -
download TIDA-010019 PCB.pdf (2097KB) -
download TIDA-010019 CAD Files.zip (1712KB) -
download TIDA-010019 Gerber.zip (381KB)
Design files
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download TIDA-01214 BOM Files.zip (520KB) -
download TIDA-01214 Assembly Files.zip (716KB) -
download TIDA-01214 Layer Plots.zip (4008KB) -
download TIDA-01214 Altium.zip (7943KB) -
download TIDA-01214 Gerber.zip (2975KB)
Design files
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download TIDA-00721 Assembly Files.zip (48KB) -
download TIDA-00721 BOM.pdf (196KB) -
download TIDA-00721 CAD Files.zip (241KB) -
download TIDA-00721 Gerber.zip (396KB) -
download TIDA-00721 Layer Plots.zip (242KB)
Design files
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download TIDA-00824 BOM.pdf (196KB) -
download TIDA-00824 Assembly Files.zip (73KB) -
download TIDA-00824 Layer Plots.zip (305KB) -
download TIDA-00824 CAD Files.zip (518KB) -
download TIDA-00824 Gerber.zip (3370KB)
Design files
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download TIDA-00452 BOM.pdf (180KB) -
download TIDA-00452 Assembly Drawing.pdf (102KB) -
download TIDA-00452 PCB.pdf (628KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
DSBGA (YFQ) | 4 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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