19-1495; Rev 1; 10/99
Remote Temperature Sensor with SMBus Serial Interface
________________General Description
The MAX1618 precise digital thermometer reports the temperature of a remote sensor.
The remote sensor is a diode-connected
transistor—typically a low-cost, easily mounted 2N3904
NPN type—that replaces conventional thermistors or thermocouples.
Remote accuracy is ±3°C for multiple
transistor manufacturers, with no calibration needed.
The MAX1618 can also measure the die temperature of other ICs, such as microprocessors, that contain an on-chip, diode-connected
transistor.
The 2-wire serial interface accepts standard System Management Bus (SMBus™) Write Byte, Read Byte, Send Byte, a...