ANALOG_DIVIDER

Published:2009/7/13 22:39:00 Author:May | From:SeekIC

Optical Electronics 2457 logarithmic module containing two pair of bipolar log elements and three opamps drives single 395 opamp to provide analog division function with high accuracy and wide dynamic range. Input resistors set full-scale input voltage. R3 determines AC accuracy. Connect inputs together fot drive with signal varying between 100 mV and 10 V (1% to 100%of full scale), and adjust R3 for straight-ine output at1 V. For negative inputs, reverse diode connections and make reference voltage negative.- Accurate Logarithmic Analog Divider, Optical Electronics, Tucson, AZ, Application Tip 10213.



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