Norton_inverting_ac_amplifier

Published:2009/7/17 4:02:00 Author:Jessie | From:SeekIC

This circuit uses one section of an LM3900 to form an inverting ac amplifier with single-supply biasing (the circuit is biased from the same supply used to operate the amplifier). Figure 11-32B shows the pin connections for all four sections of an LM3900. If ripple voltages are present on the V+ power-supply line, the voltages will appear at the output with a gain of one-half. To eliminate this problem, one source of ripple-filtered voltage can be provided, and then used for many amplifiers, as shown in Fig. 11-33. National Semiconductor Linear Applications Handbook, 1991 p 218 220.



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