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Allegro MicroSystems, Inc. Announces New High Speed/Low
Noise Hall-Effect Current Sensor
Improved accuracy over the full operating range 
Worcester, MA – March 18, 2008 — Allegro® announces the next generation in Hall-effect current sensing technology. Allegro’s ACS756 is a low noise, open-loop current sensor IC with a 125 kHz bandwidth capability. The enhanced accuracy and speed make this device suitable for a variety of 50 A to 100 A applications. This new device takes advantage of the low loss leadframe of our “CA” package and the fast response capability of an integrated core.
Allegro’s new ACS756 also has an internal electrostatic shield. The electrostatic shield effectively shunts the effects of voltage transient spikes around the silicon and minimizes the voltage ripple on the output of the device. The result is a high performance current sensing solution suitable for motor and inverter control, power supply control and protection, and other applications requiring high side current sensing.
About Allegro
Allegro MicroSystems, Inc. is a leader in developing, manufacturing and marketing high-performance power and Hall-effect sensor integrated circuits. Allegro's innovative solutions serve high-growth applications within the automotive, communications, computer/office automation, consumer and industrial markets. Allegro is headquartered in Worcester, Massachusetts (USA) with design and applications centers located in North and South America, Asia, and Europe. Further information about Allegro can be found at www.allegromicro.com.
Editorial Contact:
Stephanie Fennelly
Director - Marketing Communications
Tel: (508) 854-5363
sfennelly@allegromicro.com