Details, datasheet, quote on part number: 3503
CategorySensors => Hall Effect Sensors
DescriptionRatiometric, Linear Hall-effect Sensors
CompanyAllegro Micro Systems, Inc.
DatasheetDownload 3503 datasheet
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Features, Applications

The UGN3503LT, UGN3503U, and UGN3503UA Hall-effect sensors accurately track extremely small changes in magnetic flux density--changes generally too small to operate Hall-effect switches.

As motion detectors, gear tooth sensors, and proximity detectors, they are magnetically driven mirrors of mechanical events. As sensitive monitors of electromagnets, they can effectively measure a system's performance with negligible system loading while providing isolation from contaminated and electrically noisy environments. Each Hall-effect integrated circuit includes a Hall sensing element, linear amplifier, and emitter-follower output stage. Problems associated with handling tiny analog signals are minimized by having the Hall cell and amplifier on a single chip.

Three package styles provide a magnetically optimized package for most applications. Package suffix `LT' is a miniature SOT-89/TO243AA transistor package for surface-mount applications; suffix `U' is a miniature three-lead plastic SIP, while `UA' is a three-lead ultra-miniSIP. All devices are rated for continuous operation over the temperature range to +85C.


Extremely Sensitive Flat Response to 23 kHz Low-Noise Output 6 V Operation Magnetically Optimized Package

Pinning is shown viewed from branded side.

Supply Voltage, VCC............................. 8 V Magnetic Flux Density, B......... Unlimited Operating Temperature Range, TA............................ to +85C Storage Temperature Range, TS........................... to +150C

Always order by complete part number, e.g., UGN3503UA.

Limits Characteristic Operating Voltage Supply Current Quiescent Output Voltage Sensitivity Bandwidth (-3 dB) Broadband Output Noise Output Resistance Symbol VCC ICC VOUT BW Vout ROUT to 10 kHz 900 G Test Conditions Min. 2.25 0.75 Typ. Max. Units mA V mV/G kHz V

All output-voltage measurements are made with a voltmeter having an input impedance of at least 10 k. Magnetic flux density is measured at most sensitive area of device located 0.0165" (0.42 mm) below the branded face of the `U' package; 0.0195" (0.50 mm) below the branded face of the `UA' package; and 0.0305" (0.775 mm) below the branded face of the `LT' package.

115 Northeast Cutoff, Box 15036 Worcester, Massachusetts (508) 853-5000 Copyright 1985, 2002 Allegro MicroSystems, Inc.



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