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ADT7461A: Temperature Sensor with Series Resistance Cancellation

Datasheet: Temperature Monitor with Series Resistance Cancellation
Rev. 8 (294.0kB)
Product Overview
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» Product Change Notification
The ADT7461A is a dual-channel digital thermometer and undertemperature/overtemperature alarm, intended for use in PCs and thermal management systems. It is pin- and register-compatible with the ADM1032 and the ADT7461. A feature of the ADT7461A is series resistance cancellation, where up to 1.5 kΩ (typical) of resistance in series with the temperature monitoring diode can be automatically cancelled from the temperature result, allowing noise filtering.
Features
 
  • On-chip and remote temperature sensor
  • 0.25°C resolution/1°C accuracy on remote channel
  • 1°C resolution/1°C accuracy on local channel
  • Automatically cancels up to 1.5 kΩ (typical) of resistance in series with remote diode to allow noise filtering
  • Extended, switchable temperature measurement range 0°C to +127°C (default) or 64°C to +191°C
  • Pin- and register-compatible with ADM1032 and ADT7461
  • 2-wire SMBus serial interface with SMBus alert support
  • Programmable over/undertemperature limits
  • Offset registers for system calibration
  • Up to two overtemperature fail-safe THERM outputs
  • 240 µA operating current, 5 µA standby current
  • DSL Line Cards
Applications   End Products
  • Thermal Management
 
  • Notebook and Desktop Computers
  • Game Consoles
  • RFID Readers
  • Graphics Cards
  • LCD TVs
  • Dishwashers
Technical Documentation & Design Resources
Application Notes (1) Package Drawings (1)
Data Sheets (1)  
Availability & Samples
Specifications
Case Outlines
Application Diagram
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
ADT7461AARMZ Obsolete 
Pb-free
Halide free
ADT7461A Micro8™ 846A-02 1 260 Tube 50  
ADT7461AARMZ-2RL Obsolete
Pb-free
Halide free
ADT7461A Micro8™ 846A-02 1 260 Tape and Reel 3000  
ADT7461AARMZ-R Active
Pb-free
Halide free
ADT7461A Micro8™ 846A-02 1 260 Tape and Reel 3000 $2.6533
ADT7461AARMZ-RL7 Obsolete 
Pb-free
Halide free
ADT7461A Micro8™ 846A-02 1 260 Tape and Reel 1000  
ADT7461AARMZ2RL7 Obsolete 
Pb-free
ADT7461A Micro8™ 846A-02 1 260 Tape and Reel 1000  
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : <1K

Product
Description
Pricing ($/Unit)
Compliance
Status
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
ADT7461AARMZ-R  
 $2.6533 
Pb
H
 Active   
Local & Remote
SMBus
0.35
3
3.6
-40
125
±1
Micro8™
Case Outlines
846A-02   
Packages
ADT7461A: Temperature Sensor with Series Resistance Cancellation
ADT7461A: Temperature Sensor with Series Resistance Cancellation
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