In: Electrical Engineering
An 8-bit A/D Converter on a chip using 0.18um technology with a Vdd=1.8V is built using minimum size transistors (l=0.18um and w=0.36um). It has 22 transistors per bit in conversion and 128 transistors used for memory. The activity factor in the conversion modules is 0.1, while the activity factor in the memory blocks is 0.02. Assume each transistor contributes 3fF/um of gate capacitance and 0.24fF/um of diffusion capacitance. Estimate the switching power without capacitance when operating at 1MHz.