Best dual opamp for preamp

[Jan Dupont]

Which dual opamp is best as input stage in a preamp??
I could use single opamps (OPA627), but in this case I would prefer a dual opamp. Any suggestions and references???
Thanks in advance

Forgot to point out, that both opamps in this dual opamp is used for the same channel, so crosstalk is not a big problem....

 

[punchpeanut]

I heard a lot of good things about the OPA2134. The ESP site has a preamp based on this op amp.

 

[KevinLee]

For duals I prefer AD8620 and AD826. Second choices for me are opa2134, opa2604.

I have used both AD parts extensively with favorable results.

KevinLee

 

[Jan Dupont]

Thanks
I'll look into those......

 

[johnferrier]

If space is tight, then the already recommended AD8620 is a good choice because it's an 8 pin SOIC. It uses less power than the OPA627/637, it's less expensive, and has nearly as good of specs (THD not quite as good, PSRR not quite as good, input capacitance not...). One knock on the AD IC, it doesn't operate at +/-15V. It's +/-13.5V max (kind of strange).


JF

 

[Jan Dupont]

Thanks