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Convert differential sinus wave into square wave

Question asked by iozana on Nov 12, 2012
Latest reply on Nov 13, 2012 by ScottH


In my design I need to convert differential sinus wave into square wave (for frequency measurement by FPGA). The two sinus inputs are 180 phase inversion from one to another, 100-10kHz frequency. Due to high input voltage (amplitude of 50V max), a resistor divider stage is necessary. A low pass filter will halp to…

I thought to use a differential amplifier stage follow by comparator stage.

Any suggestion about a certain components that can do that kind of job? I don’t care about the price of the component, or the voltage supply…

If you’ll have an evaluation board I will be happy to purchase. Further more, if you’ll have a Multsim component/ simulation please let me know

Thank you,