ADT7482 Series

Dual Channel Temperature Sensor and Overtemperature Alarm

Catalog

Dual Channel Temperature Sensor and Overtemperature Alarm

Part	Sensing Temperature - Local [Min]	Sensing Temperature - Local [Max]	Package / Case	Package / Case [x]	Package / Case [x]	Sensing Temperature - Remote [Max]	Sensing Temperature - Remote [Min]	Mounting Type	Test Condition [Min]	Test Condition [Min]	Test Condition [Max]	Test Condition [Max]	Supplier Device Package	Accuracy - Highest (Lowest)	Accuracy - Highest (Lowest)	Features	Output Type	Voltage - Supply [Max]	Voltage - Supply [Min]	Operating Temperature [Min]	Operating Temperature [Max]
ON Semiconductor ADT7482ARMZ-REEL	0 °C	127 °C	10-MSOP 10-TFSOP	3 mm	0.118 in	150 °C	-55 °C	Surface Mount	0 °C	-40 °C	70 °C	100 °C	10-MSOP	2.5 °C	1 °C	One-Shot Output Switch Programmable Limit Standby Mode	SMBus	3.6 V	3 V	-40 °C	120 °C
ON Semiconductor ADT7482ARMZ	0 °C	127 °C	10-MSOP 10-TFSOP	3 mm	0.118 in	150 °C	-55 °C	Surface Mount	0 °C	-40 °C	70 °C	100 °C	10-MSOP	2.5 °C	1 °C	One-Shot Output Switch Programmable Limit Standby Mode	SMBus	3.6 V	3 V	-40 °C	120 °C

Catalog

Dual Channel Temperature Sensor and Overtemperature Alarm

Key Features

• 1 Local and 2 Remote Temperature Sensors

• 0.25°C Resolution/1°C Accuracy on Remote Channels

• 1°C Resolution/1°C Accuracy on Local Channel

• Automatically cancels up to 1.5 kΩ (typ) of resistance in series with the remote sensors

• Extended, switchable temperature measurement range 0°C to +127°C (default) or 55°C to +150°C

• 2-wire SMBus serial interface with SMBus alert support

• Programmable over temperature/undertemperature limits

• Offset registers for system calibration

• Up to 2 overtemperature fail-safe THERM outputs

• 240 µA Operating Current, 5 µA Standby Current

Description

The ADT7482 is a three-channel digital thermometer and undertemperature/overtemperature alarm for PCs and thermal management systems. It can measure the temperature in two remote locations, such as in the remote thermal diode in a CPU or GPU, or using a discrete diode connected transistor. This device also measures its own ambient temperature.