MAX6654MEE+T

MAX6654MEE+T is a 1°C accurate remote/local temperature sensor with SMBus serial interface. It is a precise digital thermometer that reports the temperature of both a remote P-N junction and its own die. The remote junction can be a diode-connected transistor typically a low-cost, easily mounted 2N3904 NPN type or 2N3906 PNP type that replaces conventional thermistors or thermocouples. Remote accuracy is ±1°C for multiple transistor manufacturers, with no calibration needed. The remote junction can also be a common-collector PNP, such as a substrate PNP of a microprocessor (µP). The 2-wire serial interface accepts standard system management bus (SMBus), write byte, read byte, send byte, and receive byte commands to program the alarm thresholds and to read temperature data. Application includes desktop computers, notebook computers, servers, thin clients, workstations, test and measurement, multichip modules.

• Dual channel measures remote and local temperature
• No calibration required
• Programmable under/overtemperature alarms, I²C™ compatible/SMBus interface
• Accuracy (local sensor) range from -1.3 to +1.3°C (+60°C ≤ TA ≤ +100°C, VCC = +3.3V)
• 0.2°C typical line regulation (VCC = +3V to +5.5V, TA = -55°C to +125°C)
• Supply voltage range from +3V to +5.5V (VCC = +3V to +5.5V, TA = -55°C to +125°C)
• Typical standby current is +3µA (SMBus static, VCC = +3V to +5.5V, TA = -55°C to +125°C)
• Conversion time range from +95 to +156ms (from stop bit to conversion completed, in legacy mode)
• Typical input capacitance is +5pF (VCC = +3V to +5.5V, TA = -55°C to +125°C)
• 16 pin QSOP package, operating 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