CMOS Voltage Divider with Series Resistor
VTOP = —
VBOT = —
VR = —
IDS = —
P = —
(W/L)p = —
(W/L)n = —
Drag the dot at VBOT (left end of the bar) or VTOP (right end) horizontally to slide the bar, or vertically to change ID, clamped to the white (feasible) region. The number inputs and R slider above provide a keyboard-accessible alternative.
Process parameters: Kn′ = Kp′ = 0.2 mA/V²,
VTN = |VTP| = 0.7 V ·
Symmetric assumption: (W/L)p = (W/L)n ·
Slider sweeps R while holding ID constant — W/L grows to compensate