Part Number: ACS723KMATR-20AB-T

Manufacturer: Allegro MicroSystems


Shipped from: Shenzhen/HK Warehouse

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Technical Specifications of ACS723KMATR-20AB-T

Datasheet  ACS723KMATR-20AB-T datasheet
Category Sensors, Transducers
Family Current Transducers
Manufacturer Allegro MicroSystems, LLC
Packaging Tape & Reel (TR)
Part Status Active
For Measuring AC/DC
Sensor Type Hall Effect, Open Loop
Current – Sensing 20A
Number of Channels 1
Output Ratiometric, Voltage
Sensitivity 100mV/A
Frequency DC ~ 80kHz
Linearity ±1%
Accuracy ±2%
Voltage – Supply 4.5 V ~ 5.5 V
Response Time 5μs
Current – Supply (Max) 14mA
Operating Temperature -40°C ~ 125°C
Polarization Bidirectional
Mounting Type Surface Mount
Package / Case 16-SOIC (0.295″, 7.50mm Width)


The AllegroTM ACS723KMATR-20AB-T is an integrated circuit (IC) current sensor that offers high precision and cost-effectiveness. It is specifically designed to be used for both AC and DC current sensing in a wide range of industrial, commercial, and communication systems. This compact device provides outstanding performance while also saving valuable board space and reducing costs. This guide provides a comprehensive overview of the ACS723KMATR-20AB-T, including its features, applications, and benefits. It focuses on its suitability for motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection.

Understanding the ACS723KMATR-20AB-T

The ACS723KMATR-20AB-T is equipped with a linear Hall sensor circuit that is highly accurate and has a low offset. The design of this product is unique because it includes a copper conduction path that is situated near the surface of the die. When an electric current passes through the copper conduction path, it generates a magnetic field. This magnetic field is then detected by the integrated Hall IC. The Hall IC is responsible for converting the magnetic field into a voltage that is directly proportional to it. This allows for accurate and precise measurements of the current. The Hall transducer’s close proximity to the magnetic field of the device ensures optimal accuracy.

Features and Specifications of the ACS723KMATR-20AB-T

Low-Offset, Chopper-Stabilized BiCMOS Hall IC

  • Accurate current sensing is ensured by the low-offset, chopper-stabilized BiCMOS Hall IC used in the ACS723KMATR-20AB-T.
  • The IC’s overall precision is increased, and measurement mistakes are reduced thanks to the low offset design.
  • By lowering noise and boosting signal quality, the chopper stabilization approach produces accurate current measurements.

Digital Temperature Compensation

  • Allegro’s unique digital temperature compensation technology is implemented in the IC.
  • By minimizing the effect of temperature fluctuations on the accuracy of current measurements, this compensation strategy compensates for temperature variations.
  • The ACS723KMATR-20AB-T maintains consistent performance over a wide temperature range thanks to the digital temperature compensation, increasing its dependability in various working situations.

Proximity of Magnetic Field and Hall Transducer

  • The magnetic field produced by the current is intended to be near the Hall transducer in the ACS723KMATR-20AB-T.
  • By maintaining a strong and dependable coupling between the magnetic field and the Hall transducer, this close proximity enhances the sensor’s accuracy.
  • As a result, measurements of current flow are exact and reliable, providing reliable data for many applications.

Low Internal Resistance of the Primary Copper Conduction Path

  • With an average internal resistance of 0.85 m, the major copper conduction path via which the current travels has a low internal resistance.
  • The overall energy efficiency is increased by the low resistance, which reduces power loss during current sensing operations.
  • The performance of the system is improved thanks to the lower power loss, especially in applications where power efficiency is crucial.

The ACS723KMATR-20AB-T provides great precision and stability in current sensing applications by fusing the low-offset, chopper-stabilized BiCMOS Hall IC with digital temperature adjustment. The magnetic field’s close proximity to the Hall transducer guarantees dependable coupling and accurate measurements. Additionally, the principal copper conduction path’s low internal resistance minimizes power loss, which boosts energy efficiency. These characteristics make the ACS723KMATR-20AB-T an excellent option for a variety of commercial, industrial, and communication applications that require precise and effective current sensing.

Enhanced Accuracy and Temperature Compensation

A chopper-stabilized BiCMOS Hall IC with low offset and digital temperature compensation technology is used in Allegro’s ACS723KMATR-20AB-T. It is appropriate for applications where accurate current measurements are essential since this combination ensures remarkable accuracy over a wide temperature range. The sensor’s performance is further improved by the integrated digital temperature adjustment, which ensures dependable operation under a variety of environmental circumstances.

Low Power Loss and Space-Saving Design

The primary copper conduction path of the ACS723KMATR-20AB-T has an average internal resistance of 0.85 m. The minimum power loss during current sensing procedures made possible by this low resistance increases overall energy efficiency. Additionally, the IC’s compact package size enables designers to optimize board space and cut costs associated with bigger sensor solutions, making it perfect for applications where space is limited.

High-Side Current Sensing and Electrical Isolation

The ACS723KMATR-20AB-T’s ability to be employed in high-side current sense applications without the requirement for high-side differential amplifiers or expensive isolation techniques is one of its main features. Because the sensor leads and the terminals of the conductive channel are electrically isolated, operation is secure and dependable. This feature makes circuit design simpler and lowers the number of components needed, saving money and increasing system efficiency overall.

Benefits and Applications of ACS723KMATR-20AB-T

Motor Control

  • Motor control applications benefit from the precise current sensing capabilities of the ACS723KMATR-20AB-T.
  • Accurate current measurements allow for effective motor current monitoring and control, which enhances motor performance and energy economy.
  • The IC’s capacity to recognize overcurrent conditions offers efficient defense against motor failures and aids in avoiding harm to the motor and related hardware.

Load Detection and Management

  • The ACS723KMATR-20AB-T’s precision current sensing enables accurate load detection and management.
  • It allows real-time load current monitoring, enabling improved power management and effective resource utilization.
  • Accurate load detection enables intelligent load balancing, which improves system efficiency and dependability overall. It also helps prevent overload scenarios.

Switched-Mode Power Supplies (SMPS)

  • For current sensing in SMPS applications, the ACS723KMATR-20AB-T is a great option.
  • The power supply unit operates steadily and effectively thanks to its accurate current readings.
  • In order to maintain stable output voltages, regulate power delivery, and guard against potential overcurrent situations, the IC precisely monitors the current flow. This ensures dependable power supply performance.

Overcurrent Fault Protection

  • For overcurrent fault protection applications, the ACS723KMATR-20AB-T’s capacity to detect and monitor overcurrent events makes it extremely important.
  • It enables quick and precise identification of overcurrent conditions, initiating the proper protection mechanisms to stop system failures or equipment damage.
  • Critical systems can be protected and kept running longer thanks to the accurate current sensing capabilities of the IC.

Space-Saving Design and Cost Efficiency

  • The compact design of the ACS723KMATR-20AB-T makes it perfect for situations with limited space.
  • Compact system designs are made possible by their small form factor, which frees up important board space.
  • In addition to maximizing space usage, the smaller board area required also contributes to reducing prices for larger sensor solutions.
  • Designers can save money by using the ACS723KMATR-20AB-T because it streamlines PCB layouts and reduces material prices.


The Allegro ACS723KMATR-20AB-T current sensor IC is a powerful and cost-effective way to measure AC and DC current in industrial, business, and communication systems. Its exact measurements, small size, and ability to adjust for temperature make it a great choice for applications that need accurate and reliable current monitoring. The ACS723KMATR-20AB-T makes it easier to build circuits because it has high-side current sensing and electrical isolation.

For more details about the ACS723KMATR-20AB-T and to order it, please contact ICRFQ, your best source for electronic parts in China. We’re here to give you the help you need and make sure you get this product at a price you can afford.

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