ADM1021AARQ-REEL

$3.97

Description：IC SENSOR TEMP DUAL3/5.5V 16QSOP
Series：-
Mfr：onsemi
Package：Tape & Reel (TR)

SKU:58458330daf7 Category: Thermal Management Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：IC SENSOR TEMP DUAL3/5.5V 16QSOP
Series：-
Mfr：onsemi
Package：Tape & Reel (TR)
Function：Temp Monitoring System (Sensor)
Sensor Type：Internal and External
Sensing Temperature：0°C ~ 100°C, External Sensor
Accuracy：±1°C Local, ±5°C Remote
Topology：ADC, Comparator, Multiplexer, Register Bank
Output Type：SMBus
Output Alarm：Yes
Output Fan：No
Voltage - Supply：3V ~ 5.5V
Operating Temperature：0°C ~ 100°C
Grade：-
Qualification：-
Mounting Type：Surface Mount
Package / Case：16-SSOP (0.154", 3.90mm Width)
Supplier Device Package：16-QSOP

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ADM1021AARQ-REEL

Overview

The ADM1021AARQ-REEL is a two-channel digital thermometer and undertemperature/overtemperature alarm manufactured by onsemi. It features on-chip and remote temperature sensing with ±1°C accuracy for the local sensor and ±3°C typical accuracy for the remote sensor. The device operates on a 3 V to 5.5 V supply, drawing 200 μA max operating current and 1 μA standby current. It utilizes a 2-wire SMBus serial interface and supports programmable conversion rates and alert thresholds. Packaged in a small 16-lead QSOP, it measures temperatures from 0°C to 127°C.

Feature Summary

Dual-channel temperature monitoring using on-chip and external diode-connected transistor sensors without calibration requirements
SMBus-compatible two-wire serial interface supporting programmable overtemperature/undertemperature limits and alert signaling
Low power consumption with 1 μA standby current and support for automatic conversion modes

Applications

Desktop computers
Notebook computers
Smart batteries
Industrial controllers
Telecom equipment

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and pin alignment against the 16-lead QSOP specification. Ensure compatibility with system voltage levels and SMBus protocol requirements before integration.

Selection Notes

Select this component for systems requiring precise thermal management of microprocessors and environmental monitoring. Consider the specific accuracy requirements for local versus remote sensing when designing the thermal architecture.

Part Context

This part belongs to the ADM1021 family of low-cost microprocessor system temperature monitors. It serves as an alternative to the standard ADM1021, offering enhanced noise immunity and updated register configurations while maintaining pin-for-pin compatibility.