LM74
LM74 is 12-Bit Plus Sign Temperature Sensor manufactured by National Semiconductor.
LM74 SPI/MICROWIRE 12-Bit Plus Sign Temperature Sensor
March 1, 2011
SPI/MICROWIRE™ 12-Bit Plus Sign Temperature Sensor
General Description
The LM74 is a temperature sensor, Delta-Sigma analog-todigital converter with an SPI and MICROWIRE patible 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...
