Motor Control Application Data Distribution System Many motor controls require voltage control signals, and a DAC is ideal for this application which may be driven by a processor or controller.

The DAC provides dynamic calibration for gain and voltage offset for accuracy in test and measurement systems. The data acquisition will also include a process control end, in which the processor sends feedback data to a DAC for converting to analog signals. Data Acquisition Systemsĭata to be measured is digitized by an Analog-to-Digital Converter (ADC) and then sent to a processor. The graphic controller will typically use a lookup table to generate data signals sent to a video DAC for analog outputs such as Red, Green, Blue (RGB) signals to drive a display. As with audio codecs, these ICs may have integrated DACs. The video encoder system will process a video signal and send digital signals to a variety of DACs to produce analog video signals of various formats, along with optimizing of output levels. 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)

A plain digital to analog tv converter