TRACKING_QUAD_GAIN_CONTROL

Published:2009/7/2 8:31:00 Author:May | From:SeekIC

Basic circuit for each channel uses section of National LM324 quad opamp with section of AH5009 quad FET in feedback path. Each channel is AC coupled and has 40-dB range (gain range of 1 to 100).Bandwidth is minimum of 10 kHz. and S/N ratio is better than 70 dB with 4.3-VRMS maxi-mum output.-J. Sherwin, A Linear Multiple Gain-Controlled Amplifier. National Semiconductor. Santa Clara. CA. 1975. AN-129. p 6.



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