View max6662 datasheet:

19-2121; Rev 0; 7/01 12-Bit + Sign Temperature Sensor with SPI-Compatible Serial Interface General Description Features The MAX6662 is a 12-bit + sign temperature sensor ¦ 12-Bit + Sign, 0.0625°C Resolution combined with a programmable overtemperature alarm ¦ Accuracy and a 3-wire (SPI™-compatible) serial interface in a sin- ±1°C max (+30°C to +50°C) gle package. It converts its die temperature into digital values using an internal analog-to-digital converter ±1.6°C max (0°C to +70°C) (ADC). The temperature data is stored in a temperature ±2.5°C max (-20°C to +85°C) register as a 13-bit word, which allows 0.0625°C resolu- ±2.5 typ (+150°C) tion. The temperature data is readable at any time ¦ Extended Temperature Measurement Range through the serial interface. The operatin