Joined: 02 Dec 2006 Posts: 18 Helped: 1 Location: Egypt
02 Jul 2007 1:03
level shifter design
HI
I'm looking for a design for a level shifter to raise voltage level by 0.4 volts.....and works in high frequency.
If you please I need a link or a book that contains any design or explanation to this topic.
May be you can use common drain to do so.
Or you can use PMOS cross-coupled load, which can be found in level shifter between different power supply domains.
You can use a bipolar in saturation as in the picture and easy control it by means of R or the current source
I think you mean bjt in active region right?Saturation bjt gives no gain...
I analysis small signal for this circuit found it gives gain near 1(assume R is much smaller than current source resistence ),and it provides a DC offset(given previous)
