The ADM1023 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 Pentium® III, the higher accuracy allows systems designers to safely reduce temperature guard banding and increase system performance. The device can measure the temperature of a microprocessor using a diode−connected PNP transistor, which 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.
   
FEATURES
• Next Generation Upgrade of ADM1021
• On−Chip and Remote Temperature Sensing
• Offset Registers for System Calibration
• 1°C Accuracy and Resolution on Local Channel
• 0.125°C Resolution/1°C Accuracy on Remote Channel
• Programmable Over/Undertemperature Limits
• Programmable Conversion Rate
• Supports System Management Bus (SMBus) ALERT
• 2−Wire SMBus Serial Interface
• 200 μA Max Operating Current (0.25 Conversions/Second)
• 1 μA Standby Current
• 3.0 V to 5.5 V Supply
• Small 16−Lead QSOP Package
• Pb−Free Packages are Available
   
APPLICATIONS
• Desktop Computers
• Notebook Computers
• Smart Batteries
• Industrial Controllers
• Telecomm Equipment
• Instrumentation