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LM74

National Semiconductor
Part Number LM74
Manufacturer National Semiconductor
Description SPI/MICROWIRE Digital Temperature Sensor
Published Mar 22, 2005
Detailed Description LM74 SPI/MICROWIRE Digital Temperature Sensor December 1999 LM74 SPI/MICROWIRE™ Digital Temperature Sensor General Des...
Datasheet PDF File LM74 PDF File

LM74
LM74

Overview
LM74 SPI/MICROWIRE Digital Temperature Sensor December 1999 LM74 SPI/MICROWIRE™ Digital Temperature Sensor General Description 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.
n Electronic Test Equipment Features n 0.
0625˚C temperature resolution.
n Shutdown mode conserves power between temperature readi...


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