SQUARE_ROOTER

Published:2009/6/18 21:03:00 Author:May | From:SeekIC

This illustration shows the connection of the AD534 for square-rooting, with differential inputs.The diode prevents a latching condition-common to this conftguration-which would occur if the input momentarily changed polarity. As shown, the output is always positive; it can be changed to a negative output by reversing the diode polarity and interchanging the X inputs. Because the signal input is differential, all combinations of input and output polarities can be realized. If the output circuit does not provide a resistive load to ground, one should be connected to maintain diode conduc-tion. For critical applications, the Z offset can be adjusted for greater accuracy below1 V.



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