Unipolar mode temperature compensation circuit with linear output integrated magnetic field sensor AD22151

Published:2012/10/7 21:28:00 Author:Ecco | Keyword: Unipolar mode, temperature compensation, linear output , integrated, magnetic field sensor | From:SeekIC

The feature is that R1 is connected between the TC1 end and TC3 end, so that the potential of magnetic null point is not equal to UCC / 2 to compensate for the high temperature coefficient below -2000 × 10-6/ ℃. When TC2 end is open, the compensating resistor R1 and internal resistor RB form the temperature compensation coefficient voltage divider. Under unipolar mode, the relationship curve between R1 resistance value and temperature compensation coefficient is shown as below.



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