Single supply or dual supply for OpAmps?

[isaacnewton]

Hello All,

I am going to design a Low-voltage OpAmp. I don't know whether I should use single supply or dual supply. Can somebody talk about the advantages and disadvantages of single supply and dual supply? Thank you in advance.

 

[terryssw]

The only disadvantage and advantage is how easily you can provide such supply in off-chip PCB boards. On the chip, it just the relative potential differenence do matters.

 

[qutang]

I think in dual supply ,output dc can go to zero.that can't be in single.