Ladder wave generation circuit composed of the 74HC193

Published:2011/8/24 21:30:00 Author:Christina | Keyword: Ladder wave, generation circuit | From:SeekIC

The ladder wave generation circuit which is composed of the 74HC193 is as shown in the figure. In this circuit, the 74HC193 is the 4-bit binary counter, we can connect the R-2R trapezoidal resistance network at the output port of it to form the 4-bit D/A converter. The number 15 stage voltage is the value of the trapezoidal network, 5Vxl5/16=4.6875V, the voltage of every stage is 312.5mV. In order to make the maximum output voltage is 10V, we use the A1 to amplify it 2 times. When the stepped voltage of every stage is not suitable, we can divide it at the output port.



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