ADM1021ARQZ

two－channel digital thermometer, 1 mA, 0.6 V, QSOP

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Price:: US $0.15~2.40 / piece [Get Latest Price]

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	US $0.15~2.40

PartNumber:: ADM1021ARQZ

Brand:: Analog Devices - ADI | Pack: QSOP | D/C: 12+

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Delivery: 10-15 Business Days (ships out within 3 Business days)

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Products Upload time: 2012-10-09

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Part Number:ADM1021ARQZ
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Product Summary

The ADM1021ARQZ is a two－channel digital thermometer and under over temperature alarm, intended for use in personal computers and other systems requiring thermal monitoring and management. The ADM1021ARQZ can measure the temperature of a microprocessor using a diode－connected PNP transistor, which may be provided on－chip in the case of the Pentium II or similar processors, or can be a low cost discrete NPN/PNP device such as the 2N3904/2N3906. A novel measurement technique cancels out the absolute value of the transistor’s base emitter voltage, so that no calibration is required. The second measurement channel measures the output of an on－chip temperature sensor, to monitor the temperature of the ADM1021ARQZ and its environment.

Parametrics

ADM1021ARQZ absolute maximum ratings: (1)Positive Supply Voltage (VDD)to GND: －0.3 V to +6 V; (2)D+, ADD0, ADD1: －0.3 V to VDD + 0.3 V; (3)D－ to GND: －0.3 V to +0.6 V; (4)SCLK, SDATA, ALERT, STBY: －0.3 V to +6 V; (5)Input Current, SDATA: －1 mA to +50 mA; (6)Input Current, D－: ±1 mA; (7)ESD Rating, all pins (Human Body Model): 2000 V.

Features

ADM1021ARQZ features: (1)Improved Replacement for MAX1617; (2)On－Chip and Remote Temperature Sensing; (3)No Calibration Necessary; (4)18C Accuracy for On－Chip Sensor; (5)38C Accuracy for Remote Sensor; (6)Programmable Over/Under Temperature Limits; (7)Programmable Conversion Rate; (8)2－Wire SMBus Serial Interface; (9)Supports System Management Bus (SMBusTM)Alert; (10)70 mA Max Operating Current; (11)3 mA Standby Current; (12)3 V to 5.5 V Supply; (13)Small 16－Lead QSOP Package.