Attached is a power amplifier and I am curious is there a better op amp to use that is also low powered?
op amp
- Thread starter leftbehind5805
- Start date
The 741 Operational Amplifier is 40+ years old. When it was first introduced, it was the greatest thing since sliced bread. If it were a car, it would be a 1966 Ford Falcon with 4 cylinders (one misfiring), stick shift, patched seats, and a busted headlight. It is very slow, noisy, and has non-linear characteristics compared to more modern opamps.
A TL071 is much better, but it requires 9v or more to have a 5v output swing.
There are rail-to-rail input and output opamps available nowadays.
We do not know what your requirements are. It would help if you described what kind of signal you were planning on amplifying (frequency range).
By the way, your discrete Darlington AB follower would have terrible crossover distortion, as you are not keeping the bases near their thresholds.
A TL071 is much better, but it requires 9v or more to have a 5v output swing.
There are rail-to-rail input and output opamps available nowadays.
We do not know what your requirements are. It would help if you described what kind of signal you were planning on amplifying (frequency range).
By the way, your discrete Darlington AB follower would have terrible crossover distortion, as you are not keeping the bases near their thresholds.
Thanks for the hint, I have already made the necessary changes to the circuit to avoid any distortion. For the class that I am in the op amp we have only been introduced to the 741, that is the only one i am familiar with. As for the input we lets just assume a 1kHz for frequency.
