Problem with 8038

Thread Starter


Joined May 7, 2008
I have make a oscillator circuit to produce a square,sine and triangular wave .I got the the NTE864 but i dont know how vary the output voltage.


Joined Apr 20, 2004
If you had the data sheet on the ICL8038, you would be aware that the output magnitudes are fixed. You will need an op amp buffer as the means of controlling the output voltage for any of the waveforms. The sine output is very limited - it won't be happy with any resistance under 100K ohms.


Joined Jul 17, 2007
Following on what Beenthere said, you should look at using low-noise FET-input opamps that have a broad bandwidth.

If you need more than a few mA output current, you might consider using a Linear Technology LT1010 +/-150mA fast power buffer in the feedback loop of the opamp.