i need help please
in a bjt differential amplifier what would the input impedance be for the differential mode Not the common mode ?
i know the input impedance for the common mode = rπ + 2βRee / 2 but what would the input impedance for the differential mode be ? ofcourse it depends on the two inputs but how can i determine it ? isn't there an equation to use
in a bjt differential amplifier what would the input impedance be for the differential mode Not the common mode ?
i know the input impedance for the common mode = rπ + 2βRee / 2 but what would the input impedance for the differential mode be ? ofcourse it depends on the two inputs but how can i determine it ? isn't there an equation to use