feeling单片机 fs50

he fs50 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.

features 

             ? extremely sensitive

             ? flat response to 23 khz

             ? low-noise output

             ? 2.7v to 7v operation

             ? magnetically optimized package

supply voltage, vcc------------------------------------------8v magnetic flux density, b------------------------------------unlimited operating temperature range.

ta-------------------------------------------------20oc to +85oc storage temperature range,

ts-------------------------------------------------55oc to +165oc lead temperature (soldering, 10 sec) --------------------------------+260oc

255 ± 5oc 10 ± 1sec

150 ± 10oc 90 ± 30sec

2 ~ 5oc/sec

2~5oc/sec