Soporte de software
LMT70
Sensor de temperatura analógico de 0,1C, -5,19 mV/C, pares coincidentes de alta precisión, pin de ha
Hoja de datos
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
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.
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Documentación técnica
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Ver todo 8 | Tipo | Título | Fecha | ||
|---|---|---|---|---|
| * | 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 |
| Application note | Ultra-Small, Precision Analog Temperature Sensor Measurement With ADC (Rev. A) | 24 ago 2021 | ||
| Technical article | How to design an infrared thermometer quickly | PDF | HTML | 07 abr 2020 | |
| Application note | Temperature sensors: PCB guidelines for surface mount devices (Rev. A) | 18 ene 2019 | ||
| Application note | Wearable Temp-Sensing Layout Considerations Optimized for Thermal Response (Rev. B) | 23 oct 2018 | ||
| Application note | Design Considerations for Measuring Ambient Air Temperature (Rev. B) | 10 sep 2018 | ||
| Technical article | Real-time temperature sensing with dual-mode connectivity | PDF | HTML | 03 nov 2016 | |
| Technical article | Tips and tricks for human body temperature measurement with analog temperature sen | PDF | HTML | 08 sep 2015 |
Diseño y desarrollo
Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.
Placa de evaluación
LMT70EVM — Módulo de evaluación LMT70 de sensor de temperatura analógico de precisión con habilitación de salid
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 (...)
Guía del usuario: PDF
Modelo de simulación
LMT70 TINA-TI Reference Design
SNIM008.TSC (1774 KB) - TINA-TI Reference Design
Diseños de referencia
TIDA-01576 — Diseño de referencia de módulo de entrada analógica de alta precisión con ADC doble de muestreo simu
This reference design accurately measures 16-channel AC voltage and current inputs using a precision 16-bit SAR ADC over a wide input range. This range covers protection and measurement requirements (including sampling requirements as per IEC 61850-9-2), which simplifies system design and improves (...)
Diseños de referencia
TIDA-010019 — Diseño de referencia de sustitución RTD para la compensación de unión fría en un sensor de temperatu
Temperature-sensing applications that use a thermocouple (TC) require an accurate local temperature sensor to achieve high accuracy. Solutions for design challenges such as cold-junction compensation (CJC) or including an ultra-low power TC analog front-end are highlighted and addressed in this (...)
Diseños de referencia
TIDA-01214 — Diseño de referencia de módulo de entrada analógica de alta precisión aislado con ADC de 16 bits y a
This reference design provides accurate measurements of AC voltage and current inputs using a precision 16-bit SAR ADC over a wide input range, covering protection and measurement range (including sampling requirements of IEC 61850-9-2), simplifying system design and improving trip time (...)
Diseños de referencia
TIDA-00721 — Diseño de referencia de parche de temperatura NFC pasivo
TIDA-00721 is a complete reference design for accurate temperature measurements using a passive NFC tag in a flexible patch form factor. The system offers temperature readings from tag to a NFC receiver such as a NFC enabled smartphone. The high accuracy temperature sensor (LMT70) is interfaced (...)
Diseños de referencia
TIDA-00824 — Diseño de referencia de detección de temperatura de piel humana para aplicaciones portátiles
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 (...)
Diseños de referencia
TIDA-00452 — Diseño de referencia del sensor de temperatura para dispositivos portátiles
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 (...)
| Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
|---|---|---|
| DSBGA (YFQ) | 4 | Ultra Librarian |
Pedidos y calidad
Información incluida:
- RoHS
- REACH
- Marcado del dispositivo
- Acabado de plomo/material de la bola
- Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
- Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
- Contenido del material
- Resumen de calificaciones
- Monitoreo continuo de confiabilidad
Información incluida:
- Lugar de fabricación
- Lugar de ensamblaje
Soporte y capacitación
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