LM74 - 具有 Microwire 和 SPI 接口的 ±1.25°C 温度传感器

LM74是TI德州仪器公司的一款本地温度传感器产品，LM74是具有 Microwire 和 SPI 接口的 ±1.25°C 温度传感器，本站介绍了LM74的封装应用图解、特点和优点、功能等，并给出了与LM74相关的TI元器件型号供参考。

LM74 - 具有 Microwire 和 SPI 接口的 ±1.25°C 温度传感器 - 本地温度传感器 - 温度传感器和控制IC - 德州仪器

产品描述

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.

产品特性

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)

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