EE 230 HW 11 Spring 2010

# EE 230 HW 11 Spring 2010 - EE 230 Homework 11 Spring 2010...

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Page 1 of 5 EE 230 Homework 11 Spring 2010 Assume all MOS transistors have model parameters μ n C OX =100 μ A/V 2 , V Tn =1V, and λ =0. Correspondingly, assume all BJT transistors have model parameters J S A= 10 -12 A , β =100, and V AF = . Problem 1 Draw the small signal equivalent circuits. Assume M 1 and Q 1 are in Saturation and Forward Active respectively and that all capacitors are large. Do not solve the circuit. 10K V (t)=V M sin( ω t+ θ ) 70K V DD =10V V OUT 4K 4K 1K C 1 C 2 C 3 Q 1

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Page 2 of 5 Problem 2 Obtain the quiescent output voltage and the small signal voltage gain. Problem 3 Determine the small signal output voltage if the small signal input voltage is a sinusoidal 1KHz signal with 0-P amplitude of 100mV. V IN (t) -2V 4V V OUT (t) W=10 μ L=2.5 μ
Page 3 of 5 Problem 4 Obtain the small signal impedance between the two terminals exiting the box. Assume the MOSFET is operating in the Saturation region and the BJT in the Forward Active region and that the quiescent currents are both 1mA. The dimensions of

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EE 230 HW 11 Spring 2010 - EE 230 Homework 11 Spring 2010...

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