器件名称: LM70
功能描述: SPI/MICROWIRE
文件大小: 285.77KB 共13页
简 介:LM70 SPI/MICROWIRE10-Bit plus Sign Digital Temperature Sensor
July 2000
LM70 SPI/MICROWIRE 10-Bit plus Sign Digital Temperature Sensor
General Description
The LM70 is a temperature sensor, Delta-Sigma analog-to-digital converter with an SPI and MICROWIRE compatible interface available in LLP and MSOP 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 A. This mode is useful in systems where low average power consumption is critical. The LM70 has 10-bit plus sign temperature resolution (0.25C per LSB) while operating over a temperature range of 55C to +150C. 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. n Electronic Test Equipment
Features
n 0.25C temperature resolution. n Shutdown mode conserves power between temperature reading n SPI and MICROWIRE Bus interface n MSOP-8 and LLP-8 packages save space
Key Specifications
j Supply Voltage j Supply Current
2.65V to 5.5V operating shutdown 260A (typ) 490A (max) 12A (typ)
j Temperature
40C to 85C 10C to 65C 55C to 125C 55C to 150C
± 2C(max)
+1.5/2C(max) +3/2C(max) +3.5/2C(max)
Applications
n n n n System Thermal Management Personal Computers Disk Drives Office Electronics
Accuracy
Simplified Block Diagram
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