The LM95172QA2 MDA is an integrated digital-output temperature sensor with a Serial Peripheral Interface (SPI) and MICROWIRE?-compatible interface in die form. It features a very linear Sigma-Delta Analog-to-Digital Converter (ADC), high accuracy, fast conversion rates, and extremely low output noise.

The over-temperature alarm output ( ^OVERTEMP) asserts when the die temperature exceeds a programmed T_HIGH limit. The user-programmed T_LOW limit creates a temperature-stabilizing hysteresis when the ambient temperature is near the trip point.

The LM95172QA2 MDA can be programmed to operate from 13 bits (0.0625°C per LSB) to 16 bits (0.0078125°C per LSB) resolution. The LM95172QA2 MDA powers up with temperature output resolution set to 13-bits. The resolution may then be changed to 14-, 15- or 16-bits. When in the 13-, 14- or 15-bit resolution mode, the least significant bit in the 16-bit temperature register toggles after the completion of each conversion. This bit may be monitored to verify that the conversion is complete.

The high noise immunity of the Serial I/O (SI/O) output makes the LM95172QA2 MDA ideal for use in challenging electromagnetic environments.