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FET_AMPLIFIER_FOR_ACTIVE_FILTER

2017-02-26 08:58  
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FET_AMPLIFIER_FOR_ACTIVE_FILTER
Meets gain stability and high input impedance requirements for use with third-order lowpass active filters. Uses bootstrapped source-follower. Drain of input fet drives pnp transistor in cascode to reduce input capacitance.-L. J. Sevin, Jr., Field-Effect Transistors, McGraw-Hill, N.Y., 1965, p 105.