View max6629-max6632 datasheet:

19-2047; Rev 1; 7/01 12-Bit + Sign Digital Temperature Sensors with Serial Interface General Description Features The MAX6629–MAX6632 are local digital temperature ¦ Low Power Consumption sensors with an SPI™-compatible serial interface. The 32µA typ (MAX6631/MAX6632) temperature is converted to a 12-bit + sign word with a 200µA typ (MAX6629/MAX6630) resolution of 0.0625°C/LSB. An extended temperature ¦ 12-Bit + Sign Resolution with 0.0625°C/LSB range provides useful readings up to +150°C. These sensors are 3-wire serial interface SPI compati- ¦ Accuracy ble, allowing the MAX6629–MAX6632 to be readily con- ±1°C (max) from 0°C to +70°C nected to a variety of microcontrollers (µCs). The ±2.3°C (max) from -20°C to +100°C MAX6629–MAX6632 are read-only devices, simplifying