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A3281 Datasheet(PDF) 10 Page - Allegro MicroSystems |
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A3281 Datasheet(HTML) 10 Page - Allegro MicroSystems |
10 / 13 page Chopper-Stabilized, Precision Hall-Effect Latches A3280, A3281 and A3283 9 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com be connected (in close proximity to the Hall element) between the supply and ground of the device to reduce both external noise and noise generated by the chopper-stabilization technique. The simplest form of magnet that will operate these devices is a ring magnet. Other methods of operation, such as linear mag- nets, are possible. Extensive applications information for Hall-effect devices is available in: • Hall-Effect IC Applications Guide, Application Note 27701; • Guidelines for Designing Subassemblies Using Hall-Effect De- vices, Application Note 27703.1 More detailed descriptions of the chopper-stabilized circuit opera- tion can be found in: • Monolithic Magnetic Hall Sensing Using Dynamic Quadrature Offset Cancelation, Technical Paper STP 97-10; and • Chopper-Stabilized Amplifiers With A Track-and-Hold Signal Demodulator, Technical Paper STP 99-1. All are provided at www.allegromicro.com APPLICATIONS INFORMATION SUPPLY OUTPUT Dwg. EH-013 0.1 F SUPPLY |
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