Haible Juergen wrote: > If you want a better solution, I'd suggest 3 chips: > TL074, CA3080, and MC1496. Use the 074 for > buffers and for hysteretic switch, the 3080 as integrator, > and the 1496 for precision tri/sine shaping. >From my experience the TL074 is not very well suitable for a comparator. It tends to latch up sometimes. Ingo