LMT70
- 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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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.
관심 가지실만한 유사 제품
비교 대상 장치보다 업그레이드된 기능을 지원하는 즉각적 대체품.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | LMT70, LMT70A ±0.05°C Precision Analog Temperature Sensor, RTD and Precision NTC Thermistor IC datasheet (Rev. A) | PDF | HTML | 2015. 5. 11 | |
| Product overview | Ultra-Small Temperature Sensor Comparison Guide (Rev. A) | PDF | HTML | 2025. 1. 21 | ||
| 애플리케이션 노트 | Ultra-Small, Precision Analog Temperature Sensor Measurement With ADC (Rev. A) | 2021. 8. 24 | |||
| 기술 문서 | How to design an infrared thermometer quickly | PDF | HTML | 2020. 4. 7 | ||
| 애플리케이션 노트 | Temperature sensors: PCB guidelines for surface mount devices (Rev. A) | 2019. 1. 18 | |||
| 애플리케이션 노트 | Wearable Temp-Sensing Layout Considerations Optimized for Thermal Response (Rev. B) | 2018. 10. 23 | |||
| 애플리케이션 노트 | Design Considerations for Measuring Ambient Air Temperature (Rev. B) | 2018. 9. 10 | |||
| 기술 문서 | Real-time temperature sensing with dual-mode connectivity | PDF | HTML | 2016. 11. 3 | ||
| 기술 문서 | Tips and tricks for human body temperature measurement with analog temperature sen | PDF | HTML | 2015. 9. 8 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
LMT70EVM — LMT70 평가 모듈 정밀 아날로그 출력 온도 센서, 출력 활성화 가능
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 (...)
SNIC010 — LMT70EVM Installer v1.4.0.0
TIDA-00452 — 웨어러블 기기를 위한 온도 센서 레퍼런스 디자인
This reference design demonstrates temperature sensing aimed at the wearables market. LMT70 temperature sensor is ideal for wearable devices due to its 0.13°C temperature accuracy at human body temperatures. Its small form WCSP package allows it to be heated up quickly and have a fast thermal (...)
TIDA-00721 — 패시브 NFC 온도 패치 레퍼런스 디자인
TIDA-00824 — 웨어러블 애플리케이션을 위한 인체 피부 온도 센서 레퍼런스 디자인
TIDA-00824 features LMT70 analog temperature sensor for measuring human skin temperature. This reference design shows how to mechanically mount the temperature sensor for best thermal conductivity. Signal path considerations on how to achieve greater than 0.1°C accuracy is also discussed in (...)
TIDA-010019 — 온도 센서에 냉접점 보상을 제공하기 위한 RTD 교체 레퍼런스 설계
TIDA-01214 — 16비트 ADC 및 디지털 아이솔레이터를 사용하는 절연, 고정밀 아날로그 입력 모듈 레퍼런스 디자인
TIDA-01576 — 16비트 1MSPS 듀얼 동시 샘플링 ADC를 지원하는 고정밀 아날로그 입력 모듈 레퍼런스 설계
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| DSBGA (YFQ) | 4 | Ultra Librarian |