LM74CIM-3 ,SPI/MICROWIRE 12-Bit Plus Sign Temperature Sensorapplicationsinharddiskdrives,printers,elec-j Supply Current operating 265µA (typ)tronic test equipm ..
LM74CIM5 ,SPI/MICROWIRE 12-Bit Plus Sign Temperature SensorApplicationsn System Thermal Management −25˚C to 110˚C ±2.1˚C(max)n Personal Computers−55˚C to 125˚ ..
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LM74CIMX-3/NOPB ,?1.25?C Temperature Sensor with SPI Interface 8-SOIC -55 to 150electrical specifications do notapply when operating the device beyond its rated operating conditio ..
LM74CIMX-5 ,SPI/MICROWIRE 12-Bit Plus Sign Temperature SensorGeneral DescriptionThe LM74 is a temperature sensor, Delta-Sigma analog-to-
LP3982ILD-3.3 ,Micropower, Ultra Low-Dropout, Low-Noise, 300mA CMOS RegulatorFeaturesn MAX8860 pin, package and spec. compatibleThe LP3982 low-dropout (LDO) CMOS linear regulat ..
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LP3982ILDX-3.3 ,Micropower, Ultra Low-Dropout, Low-Noise, 300mA CMOS RegulatorFeaturesn MAX8860 pin, package and spec. compatibleThe LP3982 low-dropout (LDO) CMOS linear regulat ..
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LM74CIM3-LM74CIM-3-LM74CIM5-LM74CIM-5-LM74CIMX-3-LM74CIMX-5
SPI/MICROWIRE 12-Bit Plus Sign Temperature Sensor
LM74
SPI/MICROWIRE™ 12-Bit Plus Sign Temperature Sensor
General DescriptionThe LM74isa temperature sensor, Delta-Sigma analog-to-
digital converter withan SPI and MICROWIRE compatible
interface. The host can query the LM74at any timeto read
temperature.A shutdown mode decreases power consump-
tionto less than10 µA.This modeis usefulin systems where
low average power consumptionis critical.
The LM74 has 12-bit plus sign temperature resolution
(0.0625˚C per LSB) while operating overa temperature
rangeof −55˚Cto +150˚C.
The LM74’s 3.0Vto 5.5V supply voltage range, low supply
current and simple SPI interface makeit idealfora wide
rangeof applications. These include thermal management
and protection applicationsin hard disk drives, printers, elec-
tronic test equipment, and office electronics. The LM74is
availablein the SO-8 packageas wellasan 5-Bump micro
SMD package.
Applications System Thermal Management Personal Computers Disk Drives Office Electronics Electronic Test Equipment
Features 0.0625˚C temperature resolution. Shutdown mode conserves power between temperature
reading SPI and MICROWIRE Bus interface 5-Bump micro SMD package saves space
Key Specifications Supply Voltage 3.0Vor 2.65Vto
5.5V Supply Current operating 265µA (typ)
520µA (max)
shutdown 3µA (typ) Temperature
Accuracy −10˚Cto 65˚C ±1.25˚C(max)
−25˚Cto 110˚C ±2.1˚C(max)
−55˚Cto 125˚C ±3˚C(max)
Simplified Block DiagramApril 2003
LM74
SPI/MICROWIRE
12-Bit
Plus
Sign
emperature
Sensor
