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ADT7421 Datasheet Precision Temperature Sensor

Manufacturer: onsemi

Overview

ADT7421 Precision Temperature Sensor with Beta Compensation (for <45 nm Geometries) The ADT7421 is a dual-channel digital thermometer and under/overtemperature alarm, intended for use in PCs and thermal management systems.

It is pin- and register-compatible with the ADM1032, ADT7461 and ADT7461A.

The ADT7421 includes Beta Cancellation Technology.

Key Features

  • On-chip and Remote Temperature Sensor.
  • 0.25C Resolution on Remote Channel.
  • 1C Resolution on Local Channel.
  • Automatically Cancels the Effect of Beta Variation in Thermal Transistors on Small Geometry CPU’s.
  • Automatically Cancels Up to 50 W (Typical) of Resistance in Series with Remote Transistor.
  • Extended, Switchable Temperature Measurement Range 0C to +125C (default) or.
  • 40C to +125C.
  • Pin- and Register-compatible with ADM1032, ADT7461, ADT7461A,.