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Old 24th March 2004, 09:49 AM   #1
okina is offline okina  Japan
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Location: tokyo
Question what do you think is best op-amps for my case

hi.

this is my first thread...
I m suffering from chooseing better op-amps to my first DAC.
this DAC is my first DAC.

Im going to build the DAC like below
PCM1794 -> I/V -> LPF -> OUTPUT
SPDIF -> CS8416 ->
PCM1794 -> I/V -> LPF -> OUTPUT

I have searched the logs of this forum, and
I got many informations to choice.
But, I cannot choose yet.

I like hearing extensive music, so
plz tell me the acceptable op-amps [you think].
Im going to buy the op-amps what you all tell me,
and test which one is better to use.

which one is good to I/V ?
whick one is good to LPF ?
plz tell me how you think.
and Im happy if you write the reason too.

thx in advance.
Im sorry not good at English....
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Old 24th March 2004, 09:55 AM   #2
okina is offline okina  Japan
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Default re-write

................................PCM1794 -> I/V -> LPF -> OUTPUT
SPDIF -> CS8416 ->
................................PCM1794 -> I/V -> LPF -> OUTPUT
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Old 24th March 2004, 09:57 AM   #3
Electrons are yellow and more is better!
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AD8610 or AD8620 from Analog Devices. Not a bad opamp

BTW: Your english is quite sufficient for us and not bad at all.
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Old 24th March 2004, 10:05 AM   #4
roibm is offline roibm  Romania
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After hearing them, I would say the same: AD 86[12]0.
If you like a less smoother sound, have a look at AD8066, very good as well.
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Old 24th March 2004, 05:41 PM   #5
okina is offline okina  Japan
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Location: tokyo
hi, peranders and roibm.
thx alot !!

first, AD8610 and AD8620 are good for I/V ? or LPF ??
and AD8066.
searching in google JP, there isnt any hit about AD8066...
perhaps, AD8066 is a hidden great chip ?!

Im hasitating to ask you... but
what is important spec for I/V opamps?
low noise, high speed, high accuracy...etcetc
there are many factor of opamps
and, what name of spec should I watch when I check datasheet
and same for LPF.
what factor is important for good LPF ?

when I hear everyone say OPA627 is great,
I cannot understand why OPA627 is good.



# when I searched the log, I find mach information written by peranders
#those benefited me so much
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