12v squarewave?
amit_kr said:
i want +-12V for generation of squarewave from IC555
if you want a 12 squarewave(good slewrate, lo output current):
IC555
astable conf----------->pin(+)
LM 318----->(voilà), 12v squarewave.
6,5V(stab from +12)---->pin(-)
the LM318 can be compensated, nulled, etc. it´s a very good opamp to 15MHz. Download data from national semiconductor.
agn, if it´s what you want, don´t supply the -12v from switchers.
for a good pulse shape go linear.
hope this help you.
after all, a squarewave is from zero same up, same down 50%DC (what you'll get from above).
keyboard will not gonna bite you, boy...
cheers/andrew