ADT7461A Series

Temperature Sensor with Series Resistance Cancellation

Catalog

Temperature Sensor with Series Resistance Cancellation

Part	Accuracy - Highest (Lowest)	Mounting Type	Output Type	Features	Operating Temperature [Min]	Operating Temperature [Max]	Resolution	Supplier Device Package	Sensing Temperature - Local [Max]	Sensing Temperature - Local [Min]	Package / Case	Package / Case [custom]	Package / Case	Sensing Temperature - Remote [Max]	Sensing Temperature - Remote [Min]	Voltage - Supply [Max]	Voltage - Supply [Min]	Test Condition [Max]	Test Condition [Min]	Package / Case [y]	Package / Case [x]	Accuracy - Highest (Lowest)	Test Condition [Min]	Test Condition [Max]
ON Semiconductor ADT7461ARMZ-2RL7	3 °C	Surface Mount	SMBus	One-Shot Output Switch Programmable Limit Standby Mode	-40 °C	120 °C	8 b	8-MSOP	120 °C	-40 °C	8-MSOP 8-TSSOP	0.118 in	3 mm	150 °C	-55 °C	5.5 V	3 V	100 °C	-40 °C
ON Semiconductor ADT7461ARZ-REEL	3 °C	Surface Mount	SMBus	One-Shot Output Switch Programmable Limit Standby Mode	-40 °C	120 °C	8 b	8-SOIC	120 °C	-40 °C	8-SOIC			150 °C	-55 °C	5.5 V	3 V	100 °C	-40 °C	3.9 mm	0.154 in
ON Semiconductor ADT7461AARMZ-REEL	1 °C	Surface Mount	SMBus	One-Shot Output Switch Programmable Limit Standby Mode	-40 °C	120 °C	8 b	8-MSOP	120 °C	-40 °C	8-MSOP 8-TSSOP	0.118 in	3 mm	191 °C	-64 °C	3.6 V	3 V	70 °C	0 °C			2.5 °C	-40 °C	100 °C
ON Semiconductor ADT7461ARMZ-REEL7	3 °C	Surface Mount	SMBus	One-Shot Output Switch Programmable Limit Standby Mode	-40 °C	120 °C	8 b	8-MSOP	120 °C	-40 °C	8-MSOP 8-TSSOP	0.118 in	3 mm	150 °C	-55 °C	5.5 V	3 V	100 °C	-40 °C
ON Semiconductor ADT7461AARMZ-2RL7	1 °C	Surface Mount	SMBus	One-Shot Output Switch Programmable Limit Standby Mode	-40 °C	120 °C	8 b	8-MSOP	120 °C	-40 °C	8-MSOP 8-TSSOP	0.118 in	3 mm	191 °C	-64 °C	3.6 V	3 V	70 °C	0 °C			2.5 °C	-40 °C	100 °C
ON Semiconductor ADT7461AARMZ-R	1 °C	Surface Mount	SMBus	One-Shot Output Switch Programmable Limit Standby Mode	-40 °C	120 °C	8 b	8-MSOP	120 °C	-40 °C	8-MSOP 8-TSSOP	0.118 in	3 mm	191 °C	-64 °C	3.6 V	3 V	70 °C	0 °C			2.5 °C	-40 °C	100 °C
ON Semiconductor ADT7461ARMZ-R7	3 °C	Surface Mount	SMBus	One-Shot Output Switch Programmable Limit Standby Mode	-40 °C	120 °C	8 b	8-MSOP	120 °C	-40 °C	8-MSOP 8-TSSOP	0.118 in	3 mm	150 °C	-55 °C	5.5 V	3 V	100 °C	-40 °C
ON Semiconductor ADT7461AARMZ-2RL	1 °C	Surface Mount	SMBus	One-Shot Output Switch Programmable Limit Standby Mode	-40 °C	120 °C	8 b	8-MSOP	120 °C	-40 °C	8-MSOP 8-TSSOP	0.118 in	3 mm	191 °C	-64 °C	3.6 V	3 V	70 °C	0 °C			2.5 °C	-40 °C	100 °C
ON Semiconductor ADT7461ARMZ-002	3 °C	Surface Mount	SMBus	One-Shot Output Switch Programmable Limit Standby Mode	-40 °C	120 °C	8 b	8-MSOP	120 °C	-40 °C	8-MSOP 8-TSSOP	0.118 in	3 mm	150 °C	-55 °C	5.5 V	3 V	100 °C	-40 °C
ON Semiconductor ADT7461AARMZ	1 °C	Surface Mount	SMBus	One-Shot Output Switch Programmable Limit Standby Mode	-40 °C	120 °C	8 b	8-MSOP	120 °C	-40 °C	8-MSOP 8-TSSOP	0.118 in	3 mm	191 °C	-64 °C	3.6 V	3 V	70 °C	0 °C			2.5 °C	-40 °C	100 °C

Catalog

Temperature Sensor with Series Resistance Cancellation

Key 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

Description

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 kΩ (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.