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.

• Pin-programmable threshold for active-low OVERT limit
• Programmable under/overtemperature active-low ALERT limit
• Dual channel: measures remote and local temperature
• 11-bit, 0.125°C resolution for remote temperature measurements
• High accuracy ±1°C (max) from +60°C to +100°C (remote)
• No calibration required, SMBus/I2C™-compatible interface
• SMBus timeout prevents SMBus lockup
• Supply voltage range from 3.0 to 5.5V
• 16 QSOP package
• Temperature range from -55°C to +125°C

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party