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ADM1021AARQZ The On Semiconductor ADM1021AARQZ is a two-channel digital thermometer and alarm IC. It monitors system temperatures using internal and external sensors with SMBus interface.
Mfr Part #:

ADM1021AARQZ

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The On Semiconductor ADM1021AARQZ is a two-channel digital thermometer and alarm IC. It monitors system temperatures using internal and external sensors with SMBus interface.
✓ Total Stock: 3,924 pcs
$ Price Range: $2.06

ADM1021AARQZ Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
3,924 pcs
On Request
3924 pcs On Request 1 On Request On Request On Request On Request On Request
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ADM1021AARQZ Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Accuracy
Function
Interface
Mounting Type
Operating Temperature
Output Alarm
Output Fan
Output Type
SVHC Present
Sensing Temperature
Sensor Type
Supplier Device Package
Supplier Package
Topology
Voltage
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ADM1021AARQZ Description

Short technical summary and product information.

The ADM1021AARQZ from On Semiconductor is a versatile two-channel digital thermometer designed for thermal monitoring and management in various systems. It offers both on-chip and remote temperature sensing capabilities, providing flexibility for different applications.

 

The device features an accuracy of ±1°C for the on-chip sensor and ±3°C for the remote sensor, ensuring reliable temperature readings. It operates over a supply voltage range of 3V to 5.5V and communicates via a 2-wire SMBus serial interface. Programmable overtemperature and undertemperature limits allow for proactive thermal management, with an ALERT output signaling out-of-range conditions.

 

Packaged in a compact 16-QSOP, the ADM1021AARQZ is suitable for surface mount applications. Its features make it ideal for use in desktop computers, notebook computers, smart batteries, industrial controllers, telecom equipment, and instrumentation where precise thermal monitoring is crucial.

 

Key specifications include a maximum operating current of 200 μA and a standby current of 1 μA. The device supports system management bus (SMBus) alert functionality, enhancing system reliability and preventing thermal damage.

ADM1021AARQZ Quick Information

Product Type: Temperature Monitor IC
Canonical Name: ADM1021AARQZ Two-Channel Digital Thermometer and Overtemperature/Undertemperature Alarm
Subcategory: Digital Thermometer

ADM1021AARQZ Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

ADM1021AARQZ Estimated Pricing

Qty Low High
1+ $2.06 $2.06

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

ADM1021AARQZ Features

  • Dual internal and external temperature sensing.
  • High accuracy ±1°C on-chip sensor.
  • Programmable over/undertemperature limits.
  • SMBus serial interface support.
  • Low operating and standby current.

ADM1021AARQZ Applications

  • Ideal for desktop computer thermal monitoring.
  • Suitable for notebook computer thermal management.
  • Used in smart battery thermal control.
  • Applicable to industrial controller temperature sensing.
  • Supports telecom equipment thermal management.

ADM1021AARQZ FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range of the ADM1021AARQZ?

The supply voltage range is 3 V to 5.5 V.

What package is the ADM1021AARQZ available in?

The ADM1021AARQZ is available in a 16-QSOP (16-SSOP) package.

What is the operating temperature range of the ADM1021AARQZ?

The operating temperature range is -40°C to 125°C.

What accuracy does the local temperature sensor provide?

The local temperature sensor has ±1°C accuracy.

What interface does the ADM1021AARQZ use?

The ADM1021AARQZ uses an SMBus interface.

Does the ADM1021AARQZ have an output alarm?

Yes, it has an output alarm.

What is the maximum operating current of the ADM1021AARQZ?

The maximum operating current is 200 μA.

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