Mfr Part #:

ADM1021AARQZ-R

The ADM1021AARQZ-R is a dual-channel digital temperature sensor from ADI Electronics. It features on-chip and remote sensing capabilities with an SMBus serial interface.

✓ Total Stock: 2,050 pcs

$ Price Range: $1.50

ADM1021AARQZ-R Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Optech Co.,Limited ✓ Non-Authorised Inventory information	2,050 pcs On Request	2050 pcs	On Request	1	On Request	On Request	24+	On Request	On Request

ADM1021AARQZ-R Description

Short technical summary and product information.

The ADM1021AARQZ-R by ADI Electronics is a two-channel digital thermometer designed for system thermal monitoring. It can measure temperatures using an on-chip sensor or a remote diode-connected transistor, such as those found on Pentium III processors or discrete NPN/PNP devices like the 2N3904/2N3906. A key feature is its novel measurement technique that cancels out the transistor's base-emitter voltage, eliminating the need for calibration.

This device communicates via a two-wire SMBus serial interface, allowing for programmable under/overtemperature limits. An ALERT output signals when temperatures exceed set ranges, functioning as an interrupt or SMBus alert. The ADM1021A offers 1°C accuracy for the on-chip sensor and 3°C accuracy for the remote sensor. It operates within a supply voltage range of 3.0 V to 5.5 V and has an operating temperature range of 0°C to 100°C.

Packaged in a compact 16-lead QSOP, the ADM1021AARQZ-R is suitable for surface mounting. It is Pb-Free and Halogen Free, making it compliant with environmental standards. Applications include desktop computers, notebook computers, smart batteries, industrial controllers, telecom equipment, and instrumentation.

ADM1021AARQZ-R Quick Information

Product Type: Temperature Sensor

Series: ADM1021A

Canonical Name: ADM1021A Dual Digital Temperature Sensor

Subcategory: Digital Temperature Sensor

ADM1021AARQZ-R Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

ADM1021AARQZ-R Estimated Pricing

Qty	Low	High
1+	$1.50	$1.50

Estimated market price range - modelled values for guidance only, not live distributor offers.

ADM1021AARQZ-R Features

Dual-channel temperature sensing
On-chip and remote sensor capability
No calibration required
SMBus serial interface
Pb-Free and Halogen Free

ADM1021AARQZ-R Applications

Desktop computer thermal monitoring
Notebook computer thermal management
Smart battery temperature sensing
Industrial controller thermal monitoring
Telecom equipment thermal management

ADM1021AARQZ-R FAQs

7 frequently asked questions generated from this part’s specifications.

What is the supply voltage range for the ADM1021AARQZ-R?

The supply voltage range is 3.0 V to 5.5 V.

What is the operating temperature range for this sensor?

The operating temperature range is 0°C to 100°C.

What is the accuracy of the on-chip temperature sensor?

The on-chip sensor has an accuracy of 1°C.

What is the accuracy of the remote temperature sensor?

The remote sensor has an accuracy of 3°C.

What communication interface does the ADM1021AARQZ-R use?

It uses a 2-wire SMBus serial interface.

Is the ADM1021AARQZ-R RoHS compliant?

Yes, it is RoHS3 Compliant.

What is the package type for the ADM1021AARQZ-R?

The package type is 16-QSOP.

Category	New Products
Manufacturer Name	ADI Electronics
Accuracy	1°C
Halogen Free	Halogen Free
Interface	SMBus
Lead Style	Gull Wing
Mounting Type	Surface Mount
Operating Temperature	0°C ~ 100°C
SVHC Present	Not Present
Voltage	3.0 V to 5.5 V