Reference current source in CMOS

[Cyrk]

Hi.

As you can read in the topic i'm looking for a schematic or something like that for reference current source. But the trick is i cannot use bipolar transistors - only mos transistors and resistors. Source should give stable current value in widest possible supply voltage range.

Thank you for any kind of help.

 

[gevy]

Read following article

Basic and advanced current references

 

[Cyrk]

Thank you. This is exactly what I was looking for.