Figure Q5 shows a single-stage amplifier circuit. The device parameter

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Figure Q5 shows a single-stage amplifier circuit. The device parameters are as follows -n-channel MOSFETs: Kn = 1 mA/V2, VTHN = 1 V and λn = 0.01 V−1. p-channel MOSFETs: Kp = 2.5 mA/V2, VTHP = −1 V, and λp = 0.01 V−1. Fig. Q5 MOSFET M1 is operating in saturation region and its DC drain current is 1 mA. Ignore Channel Length Modulation effect in DC analysis. (a) Determine the DC drain current of M3 and RREF. (b) Determine R2. (c) Identify the amplifier configuration. (d) Determine the small-signal parameters of MOSFET M1:gm,M1, ro, M1 and gmb,M1. (e) Calculate the two-port network parameters of the amplifier: Rin, Rout and Gm (or Av). (f) Estimate the voltage gain vout /vs of the amplifier.

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Figure Q5 shows a single-stage amplifier circuit. The device parameters are as follows -

n-channel MOSFETs: $K_{n} = 1 m A / V^{2}, V_{T H N} = 1 V$ and $λ_{n} = 0.01 V^{- 1}$ .
$p$ -channel MOSFETs: $K_{p} = 2.5 m A / V^{2}, V_{T H P} = - 1 V$ , and $λ_{p} = 0.01 V^{- 1}$ . Fig. Q5