ACEINNA AMR Current Sensors Now Support 3.3V Apps

June 13, 2019 Brandon Lewis

ACEINNA’s MCx1101 AMR current sensors now support 3.3V applications, making them suitable for microprocessor and ADC-based power systems. The ±50, ±20, and ±5A bi-directional current sensors deliver high DC accuracy and dynamic range in both fixed gain and ratiometric gain versions.

The MCx1101 current sensors guarantee an offset of ±60mA (±0.3 percent Full Scale Range (FSR)) over temperature, enabling accuracy over a 10:1 range of currents. The ±20A version, for instance, has a typical accuracy of ±0.6 percent with guaranteed accuracies of ±2.0 percent at 85°C.

Other features include:

  • 1.5 MHz signal bandwidth
  • 0.3 µs output step response
  • 4.8kV isolation
  • Integrated overcurrent detection flag with 0.2 µs response time

MCx1101 devices are implemented in a SOIC-16 package with 0.9 mΩ impedance current path. They are available now in volume quantities.

More information is available at

About the Author

Brandon Lewis

Brandon Lewis, Editor-in-Chief of Embedded Computing Design, is responsible for guiding the property's content strategy, editorial direction, and engineering community engagement, which includes IoT Design, Automotive Embedded Systems, the Power Page, Industrial AI & Machine Learning, and other publications. As an experienced technical journalist, editor, and reporter with an aptitude for identifying key technologies, products, and market trends in the embedded technology sector, he enjoys covering topics that range from development kits and tools to cyber security and technology business models. Brandon received a BA in English Literature from Arizona State University, where he graduated cum laude. He can be reached by email at

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