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LM70CILD-5 Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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LM70CILD-5 Datasheet(HTML) 1 Page - National Semiconductor (TI) |
1 / 14 page 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 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, elec- tronic test equipment, and office electronics. Applications n System Thermal Management n Personal Computers n Disk Drives n Office Electronics n Electronic Test Equipment Features n 0.25˚C 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 n UL Recognized Component Key Specifications j Supply Voltage 2.65V to 5.5V j Supply Current operating 260 µA (typ) 490 µA (max) shutdown 12 µA (typ) j 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) Simplified Block Diagram 10122301 February 2006 © 2006 National Semiconductor Corporation DS101223 www.national.com |
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