LM74A

Supply Voltage ........................−0.3V to 6.0V
Voltage at any Pin ..........−0.3V to V+ + 0.3V
Input Current at any Pin (Note 2) .........5 mA
Package Input Current (Note 2) ..........20 mA
Storage Temperature .....−65°C to +150°C
ESD Susceptibility (Note 3)
Human Body Mode...............................2000V
Machine Model.......................................200V

The LM74A is a temperature sensor, Delta-Sigma analog-todigital converter with an SPI and MICROWIRE compatible interface in die form. The host can query the LM74A 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. This particular data sheet applies to the LM74 in die form. The LM74 is available in the SO-8 package as well as 5-Bump micro SMD package please refer to LM74 data sheet for detailed specifictions pertaining to the packaged parts.

The LM74A has 12-bit plus sign temperature resolution 0.0625°C per LSB) while operating over a temperature range of −40°C to +150°C. The LM74A-5 MDA accuracy 3.5°C is specified over a temperature range of 0°C 150°C.

The LM74A's 4.5V to 5.5V or 3.0V to 3.6V supply voltage range, low supply current and simple SPI interface make 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.