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ADM1023: System Temperature Sensor, ACPI-Compliant, High Accuracy

Overview
Specifications
Packages
Datasheet: ACPI-Compliant, High Accuracy Microprocessor System Temperature Monitor
Rev. 10 (230.0kB)
»View Material Composition
»Product Change Notification (5)
Product Overview
Product Description
The ADM1023 is a 2-channel digital thermometer and under- and 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. 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 device and its environment.
Features
 
  • 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/under temperature limits
  • Programmable over/under temperature limits
  • 2-wire SMBus serial interface
  • 200 µA max operating current (0.25 conversions/second)
  • 1 µA standby current
  • 3 V to 5.5 V supply
Applications   End Products
  • Thermal Management
 
  • Notebook and Desktop Computers
  • Servers
  • Game Consoles
  • RFID Readers
Technical Documentation & Design Resources
Tutorials (1) Package Drawings (1)
Data Sheets (1)  
Availability and Samples
Product
Status
Compliance
Description
Package
MSL*
Container
Budgetary Price/Unit
Type
Case Outline
Type
Qty.
ADM1023ARQZ Last Shipments 
Pb-free
Halide free
System Temperature Sensor, ACPI-Compliant, High Accuracy QSOP-16 492-01 1 Tube 98  
ADM1023ARQZ-R7 Last Shipments
Pb-free
Halide free
System Temperature Sensor, ACPI-Compliant, High Accuracy QSOP-16 492-01 1 Tape and Reel 1000  
ADM1023ARQZ-REEL Active
Pb-free
Halide free
System Temperature Sensor, ACPI-Compliant, High Accuracy QSOP-16 492-01 1 Tape and Reel 2500 $4.3332
Moisture Sensitivity level (MSL) for surface mount devices (lead free measured at 260°C reflow, non lead free at 235°C reflow)
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : 4 to 8
Arrow   (Fri Jul 10 16:24:59 MST 2015) : 450
Mouser   (2015-07-09) : <100
Datasheet: ACPI-Compliant, High Accuracy Microprocessor System Temperature Monitor
Rev. 10 (230.0kB)
»View Material Composition
»Product Change Notification (5)
Product Overview

Product Compliance Status Description Sensor Type Data Transmission Standard ICC Max (mA) VCC Min (V) VCC Max (V) T Min (°C) T Max (°C) Temperature Error (°C) Package Type
 Pb-free 
 Halide free 
 Active     System Temperature Sensor, ACPI-Compliant, High Accuracy   Local & Remote   SMBus   0.2   3   5.5   0   120   ±1   QSOP-16 
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