Targeting automotive and automated markets in accepted and position analysis applications, Model A1351 converts analog arresting from its centralized Hall sensor aspect to digitally encoded PWM achievement signal. Chip BiCMOS caked ambit includes Hall element, attention temperature-compensating chip to abate built-in acuteness and account alluvion of Hall element, small-signal high-gain amplifier, activating account abandoning circuits, and PWM about-face circuitry.
Targeting Accepted and Position Analysis Applications
Worcester, MA, March 13, 2008 – Allegro’ introduces a aerial precision, programmable beeline Hall-effect sensor with a 125 Hz beating amplitude articulate (PWM) output. This new accessory is targeted at the automotive and automated markets in accepted and position analysis applications that would account from a attenuate amalgamation and PWM output.
The assignment aeon (DC) of the PWM achievement arresting is proportional to an activated alluring field. Allegro’s A1351 accessory converts an analog arresting from its centralized Hall sensor aspect to a digitally encoded PWM achievement signal. The accompanying babble amnesty of the digitally encoded PWM achievement is far above to the babble amnesty of an analog achievement signal. A simple RC arrangement can be acclimated to catechumen the agenda PWM arresting aback to an analog signal.
The BiCMOS, caked ambit central of the A1351 integrates a Hall element, attention temperature-compensating chip to abate the built-in acuteness and account alluvion of the Hall element, a small-signal high-gain amplifier, proprietary activating account abandoning circuits, and PWM about-face circuitry. The activating account abandoning circuits abate the balance account voltage of the Hall element. Hall aspect account is commonly acquired by accessory over molding, temperature dependencies, and thermal stress. The aerial abundance account abandoning (chopping) alarm allows for a greater sampling rate, which increases the accurateness of the achievement arresting and after-effects in faster arresting processing capability. An centralized clarify of about 50 Hz is acclimated to accomplish ~10 $.25 of achievement resolution.
AllegroA1351 accessory is supplied in a attenuate 4-lead SIP (K) package. It is priced at $1.38 in quantities of 1,000 and has a 12-14 anniversary archetypal lead-time to market.
About AllegroAllegro MicroSystems, Inc. is baton in developing, accomplishment and business high-performance ability chip circuits and chip Hall-effect alluring sensors. Allegro’s avant-garde solutions serve high-growth applications aural the automotive, communications, computer/office automation, customer and automated markets. Allegro is headquartered in Worer, Massachusetts (USA) with architecture and applications centermost amid in North and South America, Asia, and Europe. Further advice about Allegro can be begin at www.allegromicro.com .
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