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LM70CIMMX-3 Datasheet

  • LM70CIMMX-3

  • SPI/MICROWIRE⑩ 10-Bit plus Sign Digital Temperature Sensor

  • 289.34KB

  • 13頁

  • NSC

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LM70 SPI/MICROWIRE10-Bit plus Sign Digital Temperature Sensor
July 2000
LM70
SPI/MICROWIRE
鈩?/div>
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 pack-
ages. The host can query the LM70 at any time to read tem-
perature. A shutdown mode decreases power consumption
to less than 10 碌A. This mode is useful in systems where low
average power consumption is critical.
The LM70 has 10-bit plus sign temperature resolution
(0.25藲C per LSB) while operating over a temperature range
of 鈭?5藲C to +150藲C.
The LM70鈥檚 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.
n
Electronic Test Equipment
Features
n
0.25藲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
Key Specifications
j
Supply Voltage
j
Supply Current
2.65V to 5.5V
operating
shutdown
260碌A (typ)
490碌A (max)
12碌A (typ)
j
Temperature
鈭?0藲C to 85藲C
鈭?0藲C to 65藲C
鈭?5藲C to 125藲C
鈭?5藲C to 150藲C
鹵
2藲C(max)
+1.5/鈭?藲C(max)
+3/鈭?藲C(max)
+3.5/鈭?藲C(max)
Applications
n
n
n
n
System Thermal Management
Personal Computers
Disk Drives
Office Electronics
Accuracy
Simplified Block Diagram
DS101223-1
MICROWIRE
廬
is a registered trademark of National Semiconductor Corporation.
漏 2000 National Semiconductor Corporation
DS101223
www.national.com

LM70CIMMX-3 產品屬性

  • National Semiconductor (TI)

  • Digital

  • +/- 2 C

  • Serial (3-Wire, SPI)

  • + 150 C

  • - 55 C

  • Reel

  • Temperature Sensor

  • 10 bit+ Sign

  • 2.65 V to 5.5 V

  • 3500

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