Hello - Can anyone suggest good architectures (papers?) of Logic Level shifters.  

I need a low voltage (say 1V) shifted to a higher voltage (variable, 3-10V) range.  I have various oxide devices and Vt flavors.

One complicating issue is, the lower supply may fall away and the output should remain in state.  ie, latched.

Once we have a latching mechanism, a 2nd issues is the condition on startup.  It needs a skew or POR, perhaps.

Finally, I cannot tolerate DC current in either high or low state.

One idea is a cross coupled NOR gate, like an R/S latch.

thanks for your comments.
~WAVE    

rf-design wrote on Dec 15^th, 2008, 2:59pm:


In this case, I do actually have 10V xters to run the latch off of.

However, this is also a general problem with multiple supplies.  
I know some guys have to level shift 1.8 to 3V, using dual gate Oxide transistor.   Or 1V to 2.5V, etc.

regards,
Wave