In the following circuits assume all transistors have the fo
In the following circuits, assume all transistors have the following parameters: K = 0.5 mA/V^2, |V_TH| = 1 V and lambda = 0.02. Given: V_bias = 8 V V_DD = 10 V R = 2 k Ohm Estimate the differential gain v_OUT/v_IN (V/V). Find the common mode input resistance R_icm. Find the common mode input range. Estimate the common mode rejection ratio, CMRR. Express your result in dB.
Solution
GAIN:
Vin= Vs(z/(R+Z)
Vout= V(l(z+R)/R)
Gain = vout/vin
CMRR = A (v)dm/A(v)cm
But A(v)cm= Av1+Av2
A(v)dm= (Av1-Av2)/2
Vout1/Vin1= Av1
Av2= Vout2/Vin2
From given data ,
K= 0.5 A/v2
Vth= 1
Lamda= 0.02
Vbias= 8v
Vdd=10v
R=2kohmsby using the formula, CMMR,
