ANALOG DEVICES MAX6681MEE+

MAX6681MEE+ is a ±1°C fail-safe remote/local temperature sensor with an SMBus interface. It is a precise, two-channel digital thermometer. It accurately measures the temperature of its own die and one remote PN junction and reports the temperature on a 2-wire serial interface. The remote junction can be a diode-connected transistor like the low-cost NPN type 2N3904 or PNP type 2N3906. The remote junction can also be a common-collector PNP, such as a substrate PNP of a microprocessor. It includes pin-programmable default temperature thresholds for the active-low OVERT output, which provides fail-safe clock throttling or system shutdown. In addition, the device is pin programmable to select whether the active-low OVERT output responds to either the local, remote, or both temperatures. Applications include desktop computers, notebook, computers, servers, thin clients, and workstations.