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A two-stage amplifier is shown below. The parameters of the MOSFETs are given in the text box next to the circuit diagram. The biasing current sources both have small signal shunt resistances of 200 kΩ. MOSFET Parameters |M1| = |M2| = |M3| = |M4| Vt = 1 V; VA = 50 V; kn = kp = 4×10−4 A/V2 M5 kn = 10−3 A/V2; Vt = 1 V; VA = 50 V a) Determine the differential gain Ad = Vo/(Va−Vb). b) Determine the common mode rejection ratio, CMRR. For this circuit Acm = Vo/{(Va+Vb)/2}.

A two-stage amplifier is shown below. The parameters of the MOSFETs are given in the text box next to the circuit diagram. The biasing current sources both have small signal shunt resistances of 200 kΩ. MOSFET Parameters |M1| = |M2| = |M3| = |M4| Vt = 1 V; VA = 50 V; kn = kp = 4×10−4 A/V2 M5 kn = 10−3 A/V2; Vt = 1 V; VA = 50 V a) Determine the differential gain Ad = Vo/(Va−Vb). b) Determine the common mode rejection ratio, CMRR. For this circuit Acm = Vo/{(Va+Vb)/2}.A two-stage amplifier is shown below. The parameters of the MOSFETs are given in the text box next to the circuit diagram. The biasing current sources both have small signal shunt resistances of 200 kΩ. MOSFET Parameters |M1| = |M2| = |M3| = |M4| Vt = 1 V; VA = 50 V; kn = kp = 4×10−4 A/V2 M5 kn = 10−3 A/V2; Vt = 1 V; VA = 50 V a) Determine the differential gain Ad = Vo/(Va−Vb). b) Determine the common mode rejection ratio, CMRR. For this circuit Acm = Vo/{(Va+Vb)/2}.

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  1. A two-stage amplifier is shown below. The parameters of the MOSFETs are given in the text box next to the circuit diagram. The biasing current sources both have small signal shunt resistances of 200 k Ω .
MOSFET Parameters
| M 1 | = | M 2 | = | M 3 | = | M 4 | Vt = 1 V ; V A = 50 V ; k n = k p = 4 × 10 − 4 A / V 2
M5
k n = 10 − 3 A / V 2 ; Vt = 1 V ; V A = 50 V
a) Determine the differential gain A d = V o / ( V a − V b ) . b) Determine the common mode rejection ratio, CMRR. For this circuit A cm = V o / { ( V a + V b ) / 2 } .

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