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Product Descriptions

The ADT7461 is a dual-channel digital thermometer and under/over temperature alarm intended for use in PCs and thermal management systems. It is pin- and register-compatible with the ADM1032. The ADT7461 has three additional features: series 

resistance cancellation (where up to 3 k (typical) of resistance in series with the temperature monitoring diode may be automatically cancelled from the temperature result, allowing noise filtering); configurable ALERT output; and an extended, 

switchable temperature measurement range. The ADT7461 can accurately measure the temperature of a remote thermal diode to ±1°C and the ambient temperature to ±3°C. The temperature measurement range defaults to 0°C to +127°C, compatible 

with the ADM1032, but can be switched to a wider measurement range of ?55°C to +150°C. The ADT7461 communicates over a 2-wire serial interface compatible with system management bus (SMBus) standards. An ALERT output signals when the on-

chip or remote temperature is out of range. The THERM output is a comparator output that allows on/off control of a cooling fan. The ALERT output can be reconfigured as a second THERM output, if required.

The SMBus address of the ADT7461 is 0x4C.

Product Features

? On-Chip and Remote Temperature Sensor

? 0.25°C Resolution/1°C Accuracy on Remote Channel

? 1°C Resolution/3°C Accuracy on Local Channel

? Automatically Cancels Up to 3 k (Typ) of Resistance in Series with Remote Diode to Allow Noise Filtering

? Extended, Switchable Temperature Measurement Range 0°C to +127°C (Default) or –55°C to +150°C

? Pin- and Register-Compatible with the ADM1032

? 2-wire SMBus Serial Interface with SMBus Alert Support

? ADT7461 SMBus Address is 0x4C

? Programmable Over/Undertemperature Limits

? Offset Registers for System Calibration

? Up to Two Overtemperature Fail?Safe THERM Outputs

? Small 8-lead SOIC NB or 8-lead MSOP Packages

? 170 uA Operating Current, 5.5 uA Standby Current

? These are Pb-Free Devices*

Product Applications

? Desktop and Notebook Computers

? Industrial Controllers

? Smart Batteries

? Embedded Systems

? Instrumentation

Specifications

Actual product photos

Product Data Book：

For more product information, please download the PDF

Payment&Transportation

Official Certificate&Certificate

Multiple product supply

Company office environment

Warehouse Real Shot

Standard packaging

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