Multiplying_DACs

Published:2009/7/25 5:18:00 Author:Jessie | From:SeekIC

Figure 9-28 shows the internal functions of a multiplying DAC. Because Such four-quadrant DACs allow a digital word to operate on an analog input, or vice versa, the output can represent a sophisticated function. CMOS multiplying DACs allow true bipolar analog signals to be applied to the reference input. This feature makes such DACs useful in many applications that are not generally considered data converters. NATIONAL SEMICONDUCTOR, APPLICATION NOTE 269, 1994, P. 659.



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