View max6627 datasheet:

19-2032; Rev 1; 7/01 Remote ±1°C Accurate Digital Temperature Sensors with SPI-Compatible Serial Interface General Description Features The MAX6627/MAX6628 precise digital temperature ¦ Accuracy sensors report the temperature of a remote sensor. The ±1°C (max) from 0°C ? TRJ ? +125°C, TA = +30°C remote sensor is a diode-connected transistor, typically ±2.4°C (max) from -55°C ? TRJ ? +100°C, a low-cost, easily mounted 2N3904 NPN type that 0°C ? TA ? +70°C replaces conventional thermistors or thermocouples. The MAX6627/MAX6628 can also measure the die tem- ¦ 12-Bit + Sign, 0.0625°C Resolution perature of other ICs, such as microprocessors (µPs) or ¦ Low Power Consumption microcontrollers (µCs) that contain an on-chip, diode- 30µA (typ) (MAX6628) connected transistor. 200µ