Overview
The ADM1032ARMZ-002, produced by onsemi, is a dual-channel digital thermometer designed for thermal management in various electronic systems, particularly in desktop and notebook computers. This device is capable of measuring both local and remote temperatures with high accuracy. It features a novel measurement technique that eliminates the need for calibration by canceling out the absolute value of the transistor’s base-emitter voltage. The ADM1032 communicates via a 2-wire serial interface compatible with System Management Bus (SMBus) standards, allowing for programmable under/overtemperature limits and alerts.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Sensing Temperature - Local | 0°C ~ 100°C | °C |
| Sensing Temperature - Remote | 0°C ~ 120°C | °C |
| Accuracy - Remote Channel | ±1°C | °C |
| Accuracy - Local Channel | ±3°C | °C |
| Resolution - Remote Channel | 0.125°C | °C |
| Resolution - Local Channel | 1°C | °C |
| Supply Voltage | 3.0 V to 5.5 V | V |
| Operating Current | 170 µA | µA |
| Standby Current | 5.5 µA | µA |
| Package Type | MSOP-8 |
Key Features
- On-chip and remote temperature sensing
- Offset registers for system calibration
- Fast measurement capability (up to 64 measurements per second)
- 2-wire SMBus serial interface
- Supports SMBus alert
- Programmable under/overtemperature limits
- Programmable fault queue
- Overtemperature fail-safe THERM output
- Programmable THERM limits and hysteresis
- Pb-free devices
Applications
- Desktop and notebook computers
- Thermal management systems
- PCs and other electronic devices requiring precise temperature monitoring
Q & A
- What is the primary function of the ADM1032ARMZ-002?
The primary function of the ADM1032ARMZ-002 is to measure both local and remote temperatures in electronic systems, particularly in PCs and thermal management systems.
- How does the ADM1032ARMZ-002 communicate with other components?
The ADM1032ARMZ-002 communicates via a 2-wire serial interface compatible with System Management Bus (SMBus) standards.
- What is the accuracy of the remote temperature measurement?
The remote temperature measurement accuracy is ±1°C.
- What is the resolution of the local temperature measurement?
The resolution of the local temperature measurement is 1°C.
- What is the operating voltage range of the ADM1032ARMZ-002?
The operating voltage range is 3.0 V to 5.5 V.
- Can the under/overtemperature limits be programmed?
- What is the purpose of the ALERT output?
The ALERT output signals when the on-chip or remote temperature measurement is out of range and can be used as an interrupt or as an SMBus alert.
- What is the THERM output used for?
The THERM output is a comparator output that allows for CPU clock throttling or on/off control of a cooling fan.
- Is the ADM1032ARMZ-002 Pb-free?
- What are the typical applications of the ADM1032ARMZ-002?
The typical applications include desktop and notebook computers, and other thermal management systems.
