(Hong Kong)
Product Summary
The ADM1023ARQZ is a 2-channel digital thermometer and under/overtemperature alarm for use in personal computers and other systems requiring thermal monitoring and management. Optimized for the PentiumR III, the higher accuracy allows systems designers to safely reduce temperature guard banding and increase system performance. The ADM1023ARQZ can measure the temperature of a microprocessor using a diode-connected PNP transistor The ADM1023ARQZ may be provided on-chip with the Pentium III or similar processors; or it 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 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 device and its environment.
Parametrics
ADM1023ARQZ absolute maximum ratings: (1)Positive Supply Voltage (VDD)to GND: －0.3 to +6.0 V; (2)D+, ADD0, ADD1: －0.3 to VDD +0.3 V; (3)D－ to GND: －0.3 to +0.6; (4)SCLK, SDATA, ALERT, STBY: －0.3 to +6.0 V; (5)Input Current: ±50 mA; (6)Input Current, D－: ±10 mA; (7)ESD Rating, All Pins (Human Body Model): 2000 V.
Features
ADM1023ARQZ features: (1)Next Generation Upgrade of ADM1021; (2)On-Chip and Remote Temperature Sensing; (3)Offset Registers for System Calibration; (4)1℃ Accuracy and Resolution on Local Channel; (5)0.125℃ Resolution/1℃ Accuracy on Remote Channel; (6)Programmable Over/Undertemperature Limits; (7)Programmable Conversion Rate; (8)Supports System Management Bus (SMBus)ALERT; (9)2-Wire SMBus Serial Interface.
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||||||||||
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 ADM1023ARQZ |
ON Semiconductor |
Board Mount Temperature Sensors THERMAL DIODE MONITOR IC |
Data Sheet |
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ADM1023ARQZ-R7 |
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IC TEMP SENSOR DUAL PREC 16QSOP |
Data Sheet |
Negotiable |
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ADM1023ARQZ-REEL |
ON Semiconductor |
Board Mount Temperature Sensors THERMAL DIODE MONITOR IC |
Data Sheet |
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ADM1023ARQZ-REEL7 |
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IC SENSOR TEMP DUAL PREC 16QSOP |
Data Sheet |
Negotiable |
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