LM74A Datasheet (National Semiconductor) - 12-Bit Plus Sign Temperature Sensor

LM74A, 12-Bit Plus Sign Temperature Sensor

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

LM74A Features

* n 0.0625˚C temperature resolution. n Shutdown mode conserves power between temperature reading n SPI and MICROWIRE Bus interface n LM74 is also available in a 5-Bump micro SMD and 8-pin MSOP Key Specifications j Supply Voltage j Supply Current LM74A-5 LM74A-3 operating j LM74A-5 MDA Temperature