Broadband function generator circuit

Published:2011/8/29 1:25:00 Author:TaoXi | Keyword: Broadband, function, generator | From:SeekIC

The broadband function generator circuit is as shown in the figure, the frequency range is 1HZ~1MHZ. In the circuit, the A2 is operating in the voltage follower state and it has the buffer function. A3 is the high-speed comparator that can be used to detect the positive and negative amplitude of the triangle wave output waveform, it switches the control voltage which is added on the constant current source. A1 is the program-controlled constant current source, the output DC adds to the RC network, and this output DC is integrated to be the triangle waveform. The C1~C3 can be used to adjust the output waveform of the triangle wave, you can get the triangle waveform with good linearity by adjusting the three capacitors in the range of 5OOkHZ~1MHz.



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