Dual RTR op amp favorites

[Lou Travis]

I have checked mfr's spec sheets but need a bit of direction. Could I
ask for a few recommendations for readers' favorite op amps with the
characterisitcs listed below.

Some amps that fit are relatively expensive and probably more than I
need. What is the simplest and most cost-effective option for audio
frequency.

Single supply down to 4V
Low power
Dual amps in DIP pkg.
Rail-to-rail output
50ma output current

Other parameters are not critical.

Thank you, Louis

 

[Tim Shoppa]

I like the TLE2142 (dual), also available in single and quad, for many
of its abilities (5V, rail to rail, semi-beefy output current in the
10's of mA's if not quite 50mA) that you are looking for.

That said, it's not the most obvious choice for a demanding audio (low
noise? low distortion?) application.

CMOS Op-amps with supplies limited to no more than 6 or 7V are becoming
increasingly popular, and might fit your needs. You don't mention a
max power supply, only a min...

Tim.