[sdiy] Phase reversal-free op amp

Andre Majorel aym-htnys at teaser.fr
Tue Feb 15 23:14:36 CET 2011


Do you folks have any recommendations for phase reversal-free,
high input impedance op amps ?

OPA277/OPA2277/OPA4277 is a little too slow (0.8 V/µs which
limits you to about 20 Vpp at 20 kHz).

The LT1013/LT1014 is even slower.

The AD8610 is SMT only and few seem to carry it.

The AD743 is all that plus NRFND and rather pricey.

I'm looking for an op amp with fair DC precision that will take
anything between -15 and +15 V without freaking out. The closer
its output can get to the rails, the better.

Thanks in advance.

-- 
André Majorel http://www.teaser.fr/~amajorel/



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