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. The
LM74 is available in the SOIC package as well as the 5-Bump DSBGA package.
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