Overview
The ADM1021ARQZ-R7, produced by onsemi, is a low-cost, two-channel digital thermometer designed for monitoring system temperatures in various electronic devices. It is particularly suited for use in personal computers, including desktop and notebook systems. This device features on-chip and remote temperature sensing capabilities, making it versatile for different application needs.
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 | 150 | °C |
| Package Type | 16-lead QSOP | |
| Interface | 2-wire SMBus Serial Interface |
Key Features
- No calibration necessary for temperature sensing.
- Programmable over/under temperature limits.
- Programmable conversion rate.
- Supports System Management Bus (SMBus) alert.
- Small 16-lead QSOP package.
- Pb-free, halogen-free, and RoHS compliant.
- Switching between normal operation and standby mode via STBY input.
- Masking or enabling the ALERT output.
Applications
- Desktop computers.
- Notebook computers.
- Smart batteries.
- Industrial controllers.
- Telecom equipment.
- Instrumentation.
Q & A
- What is the primary function of the ADM1021ARQZ-R7?
The primary function is to monitor system temperatures using on-chip and remote temperature sensors. - 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 ADM1021ARQZ-R7?
The supply voltage range is 3.0 V to 5.5 V. - What interface does the ADM1021ARQZ-R7 use?
The device uses a 2-wire SMBus serial interface. - Can the ALERT output be programmed?
Yes, the ALERT output can be masked or enabled. - What is the operating current of the ADM1021ARQZ-R7?
The maximum operating current is 200 μA. - What is the standby current of the ADM1021ARQZ-R7?
The standby current is 1 μA. - Is the ADM1021ARQZ-R7 RoHS compliant?
Yes, the device is Pb-free, halogen-free, and RoHS compliant. - What are the common applications of the ADM1021ARQZ-R7?
Common applications include desktop and notebook computers, smart batteries, industrial controllers, telecom equipment, and instrumentation.
