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具有 SPI 接口的 ±2°C 温度传感器
Local sensor accuracy (Max) (+/- C) 2
Type Local
Operating temperature range (C) -55 to 150
Supply voltage (Min) (V) 2.65
Interface type SPI
Supply voltage (Max) (V) 5.5
Supply current (Max) (uA) 490
Temp resolution (Max) (bits) 11
Features UL recognized
Remote channels (#) 0
Rating Catalog
  • 0.25°C Temperature Resolution.
  • Shutdown Mode Conserves Power Between Temperature Reading
  • SPI and MICROWIRE Bus Interface
  • VSSOP-8 and WSON-8 Packages Save Space
  • UL Recognized Component

Key Specifications

  • Supply Voltage 2.65V to 5.5V
  • Supply Current
    • Operating260 μA (typ)490 μA (max)
    • Shutdown12 μA (typ)
  • Temperature Accuracy
    • ?40°C to 85°C, ±2°C(max)
    • ?10°C to 65°C, +1.5/?2°C(max)
    • ?55°C to 125°C, +3/?2°C(max)
    • ?55°C to 150°C, +3.5/?2°C(max)

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The LM70 is a temperature sensor, Delta-Sigma analog-to-digital converter with an SPI and MICROWIRE compatible interface available in WSON and VSSOP 8-pin packages. The host can query the LM70 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 LM70 has 10-bit plus sign temperature resolution (0.25°C per LSB) while operating over a temperature range of ?55°C to +150°C.

The LM70's 2.65V 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.