firsttimedesigning
Full Member level 1
cmos imelt
i am having trouble to figure out how to design a CMOS transmission gate. I dont know what voltage should i put for +Vcc and -Vcc. I have tried several different values, 1,2 and etc. However, Cadence Spectre always gives me a warning message that says the "the bulk drain junction current exceeds 'imelt'...". I want to know what is the value of imelt. Also is there an equation for the bulk drain junction current? Finally, what value of Vcc should i use to prevent the junction current exceed imelt? thanks in advance.
i am having trouble to figure out how to design a CMOS transmission gate. I dont know what voltage should i put for +Vcc and -Vcc. I have tried several different values, 1,2 and etc. However, Cadence Spectre always gives me a warning message that says the "the bulk drain junction current exceeds 'imelt'...". I want to know what is the value of imelt. Also is there an equation for the bulk drain junction current? Finally, what value of Vcc should i use to prevent the junction current exceed imelt? thanks in advance.