vswr and impedance matching sript

Signal Processing Group Inc. designs, develops and manufactures analog and RF/wireless ASICs and modules

Calculate the device sizes for a low voltage CMOS cascode current source

This calculator will help you to design a low voltage cascode current source, given the KP and VT0 of the transistor and the reference current and effective gate voltage of M5. Please see circuit below

Veffective is the voltage on the drain of M5. The lower it is, the lower the cascode can work with the supply votage

vswr and impedance matching sript

 

KP in amps/v squared:
VT0 , volts:
IREF in amps:
Veffective(volts):

Results

W/L of M6:
W/L of M5: