LM386 Equivalents?

[CodeMonk]

Topic says it all.

I'm building another headphone amplifier. The LM386 works wonder for this.

Any Ideas?

Thanks

[dxm1]

Are you having trouble getting LM386s where you're at, or just wanting to try something different?

You could do one with op amps, e.g:

http://www.headwize.com/projects/opamp_prj.htm

or totally discrete:

http://www.electronics-lab.com/projects/audio/018/

(don't forget to cover those nekkid component legs with tape or shrink wrap to be _totally_ discrete...)   

[CodeMonk]

No, I can get them at RatShack. Just that I need to build a headphone amp tonight and don't have one.
But I have tons of circuit boards with loads of various chips on them.
I do really like the way the 386 works, nice little chip.
I did just spend a little bit of time on http://www.datasheetarchive.com looking for similar items.

Thanks for the links

[ambulancevoice]

nope, the 386 is a unique ic
i think its the only ic avalible today with variable gain
there are other amplifier ics but they usually require different circuits/requirements
LM380 (requires a heat sink and is a 14 pin dip puts out 3 watts max i think)
NJM2073 (is a stereo amplifier ic, about same wattage as lm386 8 pin dip)
there is also this
http://www.diystompboxes.com/analogalchemy/sch/headamp.html
uses (very) common transistors, no ic

[Minion]

The LM386 is a Pretty Noisy IC for a headphone amp , I have used them and while they work they are definately not "Hi-Fi" ...You could build a Headphone amp like the CMOY with a Regular Fet opamp useing a curcuit that is not much more complex than the LM386 curcuit and with better noise specs and less Battery consumption....

CMOY

http://headwize.com/projects/showfile.php?file=cmoy2_prj.htm



Cheers

[CodeMonk]

I like the 386 design I am using, not noisy at all. I've had good luck with it so far.
A very simple design.
But I will look into that CMOY idea...looks intriging.

Thanks to all