A good and cheap r2r opamp?

[Brisance]

So I have a couple of projects I want to start building, but since I designed them with logic level chips, I figure I should make the whole power supply 5V to keep it simple. Since the supply is small, I want to use r2r opamps so I can get enough headroom, now is there any nice dual and single r2r audio opamps for cheap? JFET input is a bonus. Basically I am looking for a TL07x with r2r feature.

Any suggestions?

[mth5044]

TLC2272 isn't priced too bad.

[Brisance]

Thanks, I will look at the datasheet later in the evening Any other suggestions?

[karbomusic]

+1

I use the TLC2272 a lot.

[MrStab]

TLC227* is my go-to R2R, but if your supply voltage is only 5V then that may drastically increase your options. i searched hard for cheaper R2R chips for 9V, and found so many that had great specs but had too low a max supply voltage. So while i can't recommend any off the top of my head, i vaguely remember Linear Technology having some interesting options. Parametric search is your friend.

[Brisance]

thanks, I found my local supplier carries it as well, sadly their parametric search sucks ass and some parts you only find by searching for part number. Ordered 10, will test them out.