LM74 Datasheet - National Semiconductor

LM74 SPI/MICROWIRE Digital Temperature Sensor

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 powe.

LM74 Features

* n 0.0625˚C temperature resolution. n Shutdown mode conserves power between temperature reading n SPI and MICROWIRE Bus interface n SO-8 package saves space Key Specifications n Supply Voltage n Supply Current operating shutdown n Temperature Accuracy

* 10˚C to 65˚C

* 25˚C to 110˚C

LM74_NationalSemiconductor.pdf