Response to the following problem:
A MOS differential amplifier utilizing a simple current source to provide the bias current I is found to have a CMRR of 60 dB. If it is required to raise the CMRR to 100 dB by adding a cascode transistor to the current source, what must the intrinsic gain A0 of the cascode transistor be? If the cascode transistor is operated at VOV = 0.2 V, what must its VA be? If for the specific technology utilized V1A = 5 V/μm, specify the channel length L of the cascade transistor.