Any suggestions on single supply op amps? I really really need those at the moment. I bought two different op amps ( I thought they are single supply based on my google search), and they are not single supply.

suggestions please? Perhaps give me a website that sells it?

Thank you,

 

Hello,

You might want to read the attached PDF.

Bertus

 

Note that there are single-supply amps that are not rail-rail input and output (the single supply amps generally only go to the negative rail). Do you need rail-rail operation?

 

What are your purpose, application, or schematic?

 

Any suggestions on single supply op amps?

All op-amps are single supply. They don't care whether there is an arbitrary voltage reference in between the power rails.

 

Wayne,

That is my usual line. You won't believe the arguments you will get.

The only difference between ordinary opamps, "single-supply" opamps, and rail-to-rail opamps is how close the inputs and outputs can be to the + and - rails.

Bob

 

Exactly. IF there was a way to source and sink power to 3 rails, that might be a "dual" supply, but I've never seen such a thing. Certainly not a typical op-amp.

 

Hello,

The opamps for everyone PDF has a table for single supply opamps on the end:

Bertus

 

Note that there are single-supply amps that are not rail-rail input and output (the single supply amps generally only go to the negative rail). Do you need rail-rail operation?

Add to that; you need enough headroom to divide the supply into two halves and still exceed Vcc-min.

If there's a spare op-amp left over in the package - some people use it up to buffer the voltage divider.