Output stages with gain Enhance Slew rate

[mikek]

Jung is quite right (at maximum), Curl does not show any relation to output power (or voltage swing).

True......i asked why, and got no response....

And I should add - the positive slew and the negative slew should have the same speed.

True........easthetically pleasing.........
by what means do you ensure such symmetry in your designs..?

 

[PMA]

True......i asked why, and got no response....

True........easthetically pleasing.........
by what means do you ensure such symmetry in your designs..?

One of the reasons is too maintain very low distortion even at high frequencies 😉

 

[mrfeedback]

Symetrical slew rates are important, as is freedom from 'stiction' when coming out of clipping.
Distortion at high frequencies is not so nearly as important.
0.1% distortion at 10kHz is inaudible.

Eric.

 

[PMA]

Distortion at high frequencies is not so nearly as important.
0.1% distortion at 10kHz is inaudible.

Eric.

In case that you speak about 1-tone monaural sinus tone then I agree.

Pavel

 

[mikek]

Re: Re: Endless loops do me no good.

What is the hardest thing to design: A fast driver or a amplifying output stage?

I'm in again. Couldn't help it.

A fast, (>100V/uS), voltage-feedback driver.

 

[mikeks]

http://cache.national.com/ds/LH/LH0101.pdf

 

[Nelson Pass]

How does a 10 V/uS LH0101 qualify as fast, or are you just
playing with us?

 

[jam]

Eric,

Welcome back, been on a walkabout...........? 😉

Regards,
Jam

 

[mikeks]

Hi Nelson...

How does a 10 V/uS LH0101 qualify as fast, or are you just
playing with us?

Compare figures 2 and 3 here:

http://www.national.com/an/AN/AN-261.pdf

...with the 'Alexander' amp.