Infineon Technologies AG presents a linear output Hall-Effect sensor which specifically meets the demands of highly accurate rotation, angle and position detection, as well as current measurement applications. The sensor provides a ratiometric analog output which is ideally suited for A/D conversion using the supply voltage as a reference. The transfer function of the linear Hall IC TLE4990 can be adopted arbitrarily to the requirements of the application in terms of offset (zero field) voltage, sensitivity and clamping. Bipolar or unipolar mode can be selected to cover a wide range of automotive applications like pedal position or steering angle. The programming is implemented by using low current fusible polysilicon links, which are accessed through a three wire interface. Excellent accuracy is assured through the programmable temperature compensation of the sensitivity. Outstanding stability is achieved through dynamic offset cancellation to eliminate any parasitic mechanical or temperature effects. Produced in 0.5 microns BiCMOS technology the IC provides high voltage capability as well reverse polarity protection. A 4-pin plastic single in-line, small outline package of only 1.0 mm thickness allows insertion into the smallest air gaps and is therefore optimising the available magnetic flux.


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    Title :

    Programmable linear magnetic hall-effect sensor with excellent accuracy


    Additional title:

    Proframmierbarer Sensormit linearem magnetischen Halleffekt und hervorragender Genauigkeit


    Contributors:


    Publication date :

    2002


    Size :

    5 Seiten, 3 Bilder, 4 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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