FAST_SLEW_VCO_DRIVER

Published:2009/7/14 20:34:00 Author:May | From:SeekIC

High-performance circuit slews at 4000 V/μs when operating from 80-V supply and provides output levels up to +30 VDC. Circuit handles large-signal modulation rates up to 20 MHz for 60-V varactors and small-signal bandwidths up to 86 MHz. Input opamp can be M. S. Kennedy Model 770 or other fast-input unit having -6 dB per octave rolloff. Operation in transimpedance configuration means associated buffer amplifier can have high gain. RE is 250 ohms, R1 is 100, R3 is 4.3K, R5 is 170, and R8 is 90.-H. Bunin, Low Cost VCO Driver Amplifiers Really Perform lf Designed Right, EDN Magazine, Oct. 5, 1974, p 51-55.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Basic_Circuit/FAST_SLEW_VCO_DRIVER.html

Print this Page | Comments | Reading(3)