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Sensores de temperatura digitales

LM74

ACTIVO

Sensor de temperatura de ±1.25°C con interfaz SPI

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LM74

ACTIVO
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Detalles del producto

Local sensor accuracy (max) 1.25 Type Local Operating temperature range (°C) -55 to 150 Supply voltage (min) (V) 2.65, 3 Interface type SPI Supply voltage (max) (V) 5.5 Supply current (max) (µA) 470 Temp resolution (max) (bps) 13 Remote channels (#) 0 Rating Catalog
Local sensor accuracy (max) 1.25 Type Local Operating temperature range (°C) -55 to 150 Supply voltage (min) (V) 2.65, 3 Interface type SPI Supply voltage (max) (V) 5.5 Supply current (max) (µA) 470 Temp resolution (max) (bps) 13 Remote channels (#) 0 Rating Catalog
DSBGA (YTA) 5 3.0625 mm² 1.75 x 1.75 SOIC (D) 8 29.4 mm² 4.9 x 6
  • 0.0625°C Temperature Resolution
  • Shutdown Mode Conserves Power Between Temperature Reading
  • SPI and MICROWIRE Bus Interface
  • 5-Bump DSBGA Package Saves Space

Key Specifications

  • Supply Voltage 3.0V or 2.65V to 5.5V
  • Supply Current
    • Operating265μA (typ)520μA (max)
    • Shutdown3μA (typ)
  • Temperature Accuracy
    • −10°C to 65°C, ±1.25°C(max)
    • −25°C to 110°C, ±2.1°C(max)
    • −55°C to 125°C, ±3°C(max)

All trademarks are the property of their respective owners.

  • 0.0625°C Temperature Resolution
  • Shutdown Mode Conserves Power Between Temperature Reading
  • SPI and MICROWIRE Bus Interface
  • 5-Bump DSBGA Package Saves Space

Key Specifications

  • Supply Voltage 3.0V or 2.65V to 5.5V
  • Supply Current
    • Operating265μA (typ)520μA (max)
    • Shutdown3μA (typ)
  • Temperature Accuracy
    • −10°C to 65°C, ±1.25°C(max)
    • −25°C to 110°C, ±2.1°C(max)
    • −55°C to 125°C, ±3°C(max)

All trademarks are the property of their respective owners.

The LM74 is a temperature sensor, Delta-Sigma analog-to-digital converter with an SPI and MICROWIRE compatible interface. The host can query the LM74 at any time to read temperature. A shutdown mode decreases power consumption to less than 10 μA. This mode is useful in systems where low average power consumption is critical.

The LM74 has 12-bit plus sign temperature resolution (0.0625°C per LSB) while operating over a temperature range of −55°C to +150°C.

The LM74's 3.0V to 5.5V supply voltage range, low supply current and simple SPI interface make it ideal for a wide range of applications. These include thermal management and protection applications in hard disk drives, printers, electronic test equipment, and office electronics. The LM74 is available in the SOIC package as well as the 5-Bump DSBGA package.

The LM74 is a temperature sensor, Delta-Sigma analog-to-digital converter with an SPI and MICROWIRE compatible interface. The host can query the LM74 at any time to read temperature. A shutdown mode decreases power consumption to less than 10 μA. This mode is useful in systems where low average power consumption is critical.

The LM74 has 12-bit plus sign temperature resolution (0.0625°C per LSB) while operating over a temperature range of −55°C to +150°C.

The LM74's 3.0V to 5.5V supply voltage range, low supply current and simple SPI interface make it ideal for a wide range of applications. These include thermal management and protection applications in hard disk drives, printers, electronic test equipment, and office electronics. The LM74 is available in the SOIC package as well as the 5-Bump DSBGA package.
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TMP126 ACTIVO Sensor de temperatura SPI de ±0.25 °C que opera a 175 °C con CRC y alerta de velocidad de subida SPI output with improved accuracy (±0.3°C), extended temperature range (-55°C to 175°C), smaller package, and additional features including cyclic redundancy check and NIST traceability

Documentación técnica

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Tipo Título Fecha
* Data sheet LM74 SPI/ MICROWIRE 12-Bit Plus Sign Temperature Sensor datasheet (Rev. K) 22 mar 2013
Application note AN-1256 Tiny Temperature Sensors for Portable Systems (Rev. A) 26 abr 2013
Application note Tiny Temperature Sensors for Remote Systems 17 feb 2003

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.

Controlador o biblioteca

LM70SW-LINUX — Controlador Linux para LM70

The Linux driver supports the LM70 series of Temperature Sensors. The Linux driver supports communication through the SPI bus and interfaces with the Hardware Monitoring sub-system.
Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

Supported Devices:
  • lm70
  • tmp121
  • (...)
View Options
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
DSBGA (YTA) 5 Ultra Librarian
SOIC (D) 8 Ultra Librarian
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

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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