ADM1024ARU-REEL

Overview

The ADM1024ARU-REEL is a system hardware monitor manufactured by onsemi, housed in a 24-lead TSSOP package. It features a supply voltage range of 2.8 V to 5.5 V and operates within a temperature range of 0 °C to 100 °C. The device includes a 10-bit ADC with up to nine measurement channels for analog voltages, fan speeds, or external temperatures. Internal sensor accuracy is ±3 °C from 0 °C to 100 °C, while the external diode sensor offers ±5 °C accuracy over the same range. It supports SMBus communication at frequencies up to 400 kHz.

Feature Summary

• Provides sequential monitoring of multiple system parameters including power supplies, processor core voltages, and thermal conditions via an integrated serial bus interface.
• Supports remote temperature sensing using external diodes and includes dedicated inputs for chassis intrusion detection and processor VID bit reading.
• Features programmable limit comparisons that trigger interrupt outputs when monitored values exceed configured thresholds.

Applications

• Network Servers
• Personal Computers
• Microprocessor-Based Office Equipment

Procurement Notes

Verify the manufacturer designation carefully, as this component was originally developed by Analog Devices before being transferred to onsemi. Confirm the specific suffix matches the required reel packaging configuration. Ensure the operating environment remains within the specified 0 °C to 100 °C range to maintain guaranteed accuracy specifications.

Selection Notes

Select this component for designs requiring comprehensive hardware monitoring with minimal external circuitry. The built-in attenuators allow direct connection to 5 V and 12 V rails without additional resistive dividers. Verify that the host controller supports the SMBus protocol and can accommodate the available address configurations provided by the ADD pin.

Part Context

This part belongs to the ADM1024 family of system hardware monitors. The ARU suffix indicates the 24-lead TSSOP package variant. The REEL suffix specifies the tape-and-reel packaging format intended for automated surface-mount assembly processes.

Replacement Considerations

Direct replacements include other ADM1024 variants such as the ADM1024ARUZ-R7. Verify pin compatibility and register mapping when substituting between different package types or manufacturers within the same functional family.