![]() Often, the DAC will be incorporated into an entire audio codec which includes signal processing features. ![]() Audio AmplifierĭACs are used to produce DC voltage gain with Microcontroller commands. Some of the important applications are discussed below. In this way, we can find that when the input data is b3b2b1b0 (where individual bits are either 0 or 1), then the output voltage isĪpplications of Digital to Analog ConverterĭACs are used in many digital signal processing applications and many more applications. The output voltage is V0=3R(i0/16) = Vref/16 The output voltage is V0=3R(i1/8)= Vref/8įinally, the circuit is shown in below corresponding to the case where b0=1 and b2=b3=b1=0. If b1=1 and b2=b3=b0=0, then the circuit shown in the figure below it is a simplified form of the above DAC circuit. Similarly, If b2=1, and b3=b1=b0=0, then the output voltage is V0=3R(i2/4)=Vref/4 and the circuit is simplified as below The output voltage is V0=3R(i3/2)= Vref/2 Let the binary value B3 B2 B1 B0, if b3=1, b2=b1=b0=0, then the circuit is shown in the figure below it is a simplified form of the above DAC circuit. In order to achieve high-level accuracy, we have chosen the resistor values as R and 2R. ![]() The above figure shows the 4-bit R-2R ladder DAC. R-2R Ladder Digital to Analog Converter (DAC) ![]()
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