[sdiy] dual prec. op amp options?

[Fernando de Izuzquiza]

Hi all,

Searching for dual precision op amps for the control section of  
(M.Irwin) SSM2164 based VCAs.
I'm looking for a modest/decent slew rate too, not just low offset.

As single op amp I found the OP27GP, at around $2 with a slew rate of  
2.8 V/us and max input offset voltage of 100 uV (typical 30 uV)

I'd like to find a similar specs op amp but dual (you may suggest  
alternatives to the single OP27 too...)

The OP270GP is very near (sr 2.4 V/us, max ov 250 uV), but at $6 is a  
bit too much...
So, there is a cheaper alt. with similar specs?

I see that in single format there many specs/price options, but I  
only know the OP270 for a dual with still decent slew rate...

single		-max- iov (uV)		slew rate (V/us)	notes
OP177G		60				0,3				slow
OP27G		100 (typ. 30)		2,8 (min. 1,7)		OK
LTC1150CN	10				3				great but too expensive
AD797A		80				20				too expensive

dual
LT1013CN	300				0,4				slow
OP270G		250 (typ. 50)		2,4 (min. 1,7)		expensive

...


Fernando