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Problem The differential amplifier below with a mismatch of ΔRD/RD = 2% must achieve a CMRR of 60 dB and a differential gain of 5 at a bias current ID3 = 1 mA. Assuming RD ≪ ro1, find the minimum value of λ for Q3. (μnCox = 200 μA/V2 and (W/L)1 = 28).

Problem The differential amplifier below with a mismatch of ΔRD/RD = 2% must achieve a CMRR of 60 dB and a differential gain of 5 at a bias current ID3 = 1 mA. Assuming RD ≪ ro1, find the minimum value of λ for Q3. (μnCox = 200 μA/V2 and (W/L)1 = 28).

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Problem The differential amplifier below with a mismatch of Δ R D / R D = 2 % must achieve a CMRR of 60 d B and a differential gain of 5 at a bias current I D 3 = 1 m A . Assuming R D ≪ r o 1 , find the minimum value of λ for Q3. ( μ n C o x = 200 μ A / V 2 and ( W / L ) 1 = 28 ) .

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