Question

18. The distortion properties of the MOSFET cir- cuit below are captured by the nonlinear transconductance equation ipsi = a1 Vesi + az Vasi where a1 = 0.01A/V and a3 = -0.1A/V9. [Parallels Example 11.5 on Page 688] VDD Ry=250 g (a) What is IIP3 in terms of voltage? (b) What is OIP3 in terms of voltage?

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Answer 1

General up of expression 96) = 2,20 +22 2 (0+2380-. Let 20)- A cswt JO) = 21A. 68wt +225 Co8wt + 2z. A3 68wt. – 24A Gasot +2R La Cassut + 23% 68cot + d3R 368 (u)t For some value of A, the Amplitude of first harmonic becomes equal harmonic & third in log sole that value of À is called II Pz. 2010g (2,A) - 2010g ( 13 ) LA = 23 83 The corresponding output if ODP3 Vo = - Gm RD.vp Given, inga= a, VGS, + as VGSI insi = al vo + 93.2,3 :: OIP3 = -SMRD X0:36 1% = 2500 i + 250 az. 1079 14. state = 0-365 ppp X0-38 2503