Department of Electronics and Communication
Analog Circuits (ECC-204) Assignment 1
Deadline: 7th Feb, 2025
In the following problems, unless otherwise stated, assume µnCox = 200 µA/V2 , µpCox =
100 µA/V2 , and VTH = 0.4 V for NMOS devices and -0.4 V for PMOS devices
1.
Determine the region of operation of M1 in each of the circuits shown in Fig. 1
2. Determine the region of operation of M1 in each of the circuits shown in Fig. 2
3. Assume λ = 0, compute W=L of M1 in Fig. 3 such that the device operates at the edge
of saturation.
4. Calculate the bias current of M1 in Fig.3 if λ= 0.
5. Sketch Ix as a function of Vx for the circuits shown in Fig.5 . Assume Vx goes from 0 to
Vdd = 1:8 V. Also, λ = 0. Determine at what value of Vx the device changes its region of
operation.