Overview
The ADT7461ARMZ-002, produced by onsemi, is a dual-channel digital thermometer designed for undertemperature and overtemperature alarm applications. It is particularly suited for use in PCs, thermal management systems, and various industrial and automotive environments. This component offers both on-chip and remote temperature sensing capabilities, making it versatile for different thermal monitoring needs.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Temperature Measurement Range | 0°C to +127°C (default), –64°C to +191°C (extended) | Switchable range |
| Resolution and Accuracy | 0.25°C resolution / 1°C accuracy (remote), 1°C resolution / 1°C accuracy (local) | |
| Series Resistance Cancellation | Up to 1.5 kΩ (typical) | For noise filtering |
| Interface | 2-wire SMBus serial interface | SMBus Alert Support |
| Operating Current | 240 μA (operating), 5 μA (standby) | |
| Package | 8-lead MSOP | |
| RoHS Compliance | Yes, EU RoHS 2011/65/EU, 2015/863 |
Key Features
- On-chip and remote temperature sensing with high resolution and accuracy
- Extended, switchable temperature measurement range
- Automatically cancels up to 1.5 kΩ of series resistance for noise filtering
- Programmable over/undertemperature limits and offset registers for system calibration
- ALERT output and THERM output for temperature monitoring and control
- 2-wire SMBus serial interface with SMBus Alert Support
- Low power consumption: 240 μA operating current and 5 μA standby current
- Small 8-lead MSOP package
Applications
- Desktop and notebook computers
- Industrial controllers and automation systems
- Smart batteries and automotive systems
- Embedded systems and burn-in applications
- Instrumentation and other thermal management systems
Q & A
- What is the primary function of the ADT7461ARMZ-002?
The ADT7461ARMZ-002 is a dual-channel digital thermometer and undertemperature/overtemperature alarm, designed for thermal monitoring in various applications.
- What are the temperature measurement ranges of the ADT7461ARMZ-002?
The device can measure temperatures in the range of 0°C to +127°C (default) or –64°C to +191°C (extended range).
- What is the resolution and accuracy of the temperature measurements?
The remote channel has a 0.25°C resolution and 1°C accuracy, while the local channel has a 1°C resolution and 1°C accuracy.
- How does the ADT7461ARMZ-002 handle series resistance in temperature measurements?
The device can automatically cancel up to 1.5 kΩ of series resistance to allow for noise filtering.
- What type of interface does the ADT7461ARMZ-002 use?
The device uses a 2-wire SMBus serial interface with SMBus Alert Support.
- What is the power consumption of the ADT7461ARMZ-002?
The device operates at 240 μA and has a standby current of 5 μA.
- What package type is the ADT7461ARMZ-002 available in?
The device is available in an 8-lead MSOP package.
- Is the ADT7461ARMZ-002 RoHS compliant?
Yes, the device is compliant with EU RoHS 2011/65/EU, 2015/863.
- What are some common applications of the ADT7461ARMZ-002?
Common applications include desktop and notebook computers, industrial controllers, smart batteries, automotive systems, and embedded systems.
- Can the ALERT output be reconfigured?
Yes, the ALERT output can be reconfigured as a second THERM output if required.
