Overview
The ADM1021AARQZ-R7, produced by onsemi, is a two-channel digital thermometer designed for monitoring both on-chip and remote temperatures. This device is particularly suited for use in personal computers, including desktop and notebook systems, as well as in various industrial and telecommunications applications. It features a 2-wire SMBus serial interface and supports the System Management Bus (SMBus) alert, making it a versatile component for temperature monitoring and alarm systems.
Key Specifications
| Parameter | Rating/Value | Unit |
|---|---|---|
| Positive Supply Voltage (VDD) to GND | −0.3 to +6.0 | V |
| Supply Voltage Range | 3.0 to 5.5 | V |
| Operating Current | 200 μA (max) | μA |
| Standby Current | 1 μA | μA |
| On-chip Temperature Accuracy | ±1°C | °C |
| Remote Temperature Accuracy | ±3°C | °C |
| Operating Temperature Range | −55 to +125 | °C |
| Maximum Junction Temperature (TJ MAX) | 150 | °C |
| Package Type | 16-lead QSOP |
Key Features
- Alternative to the ADM1021
- On-chip and remote temperature sensing
- No calibration necessary
- Programmable over/undertemperature limits
- Programmable conversion rate
- 2-wire SMBus serial interface
- Supports System Management Bus (SMBus) alert
- Pb-free, halogen-free, and RoHS compliant
Applications
- Desktop computers
- Notebook computers
- Smart batteries
- Industrial controllers
- Telecom equipment
- Instrumentation
Q & A
- What is the primary function of the ADM1021AARQZ-R7?
The primary function of the ADM1021AARQZ-R7 is to monitor both on-chip and remote temperatures and provide over/undertemperature alarms.
- What is the accuracy of the on-chip temperature sensor?
The on-chip temperature sensor has an accuracy of ±1°C.
- What is the accuracy of the remote temperature sensor?
The remote temperature sensor has an accuracy of ±3°C.
- What is the supply voltage range for the ADM1021AARQZ-R7?
The supply voltage range is 3.0 V to 5.5 V.
- What interface does the ADM1021AARQZ-R7 use for communication?
The device uses a 2-wire SMBus serial interface.
- Is the ADM1021AARQZ-R7 RoHS compliant?
- What is the maximum operating current of the ADM1021AARQZ-R7?
The maximum operating current is 200 μA.
- What is the standby current of the ADM1021AARQZ-R7?
The standby current is 1 μA.
- Can the conversion rate of the ADM1021AARQZ-R7 be programmed?
- What package type does the ADM1021AARQZ-R7 come in?
The device comes in a 16-lead QSOP package.
