hiye,
the technician in the lab has actually tried the circuit with a high pass filter. and it actually works near perfect as the Vp-p goes from -0.2V ( approximate ) to 4.8V which is near perfect. i have tried doing so in the pspice without further analysis on calculations. and it appears to me that if the capacitor is large enough. it will go from 0 to 5V vp-p. but it my practical application, when i have the high pass filter and feed the signal to the comparator, the signal is distorted (by just measuring it without the comparator, it is perfect ) and i assume that i need a buffer ( i have also found an example using the same chip, waveform generator, comparator, high pass filter, buffer in google ). personally, i don't mind using an op amp, i too think that it will be simpler for me not to use filter, but i am afraid my lecturer didn't think so..... do you guys think it will work with the high pass filter ( as i have tried it with the pspice ). i also have pasted a link at the bottom of the circuit i found.
**broken link removed**
page 7, 11 and 12
thank you,
Jeffrey