Hi, Been a while since I had to get my hands dirty and do any electronics design so hopefully this will have an obvious answer. I have three lines of 3.6V logic that I need to translate to around 15V levels, two of which also need to drive high voltage FETs so they really need to be able to both sink and source to overcome the gate capacitance and achieve reasonable (sub microsecond) switching times (I know 15V drive for the FET is 'overkill' but there is a lot of legacy CMOS logic in the system). The board area is very pushed for size so I was hoping there would be some monolithic interface circuit that could achieve this rather than discrete components. Any suggestions? Cheers, Richard. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist