Problem #1 (3 pts) Assuming that all transistors are saturated and operating in subthreshold. Assume identical...
PROBLEM 4 (20 pts) IMPORTANT: Assume all transistors are in saturation. a) Find the small-signal DC gain of the amplifier circuit when the small-signal voltage ViN is applied to the gate of M1. Ignore the body effect for M1 and M2. b) Find the small-signal DC gain of the amplifier circuit when the small-signal voltage Vin is applied to the body of M1. In this case, a DC bias voltage (VB) is applied to the gate of M1. Ignore the...
For the MOSFET circuit, . Given for M1 and M2, and for M3. (A/V2) for all transistors. a) Find the transconductance of all 3 transistors (in terms of Io) and the small-signal voltage gain of the circuit. Assume all transistors are in saturation. b) Find R1 (looking into the source of M1) and R2 (looking into the source of M2). 8nCor 166 L 1 L 4n Cor = 1 Vpp R1 R2 8nCor 166 L 1 L 4n Cor =...
3. In the circuit shown below, the differential pair (Mand M2) is biased with a current miror that consists of M3, M and Rref. The circuit parameters are: VDD-3 V, Rre/-15 ka, RD = 20 ka, and RL-40 kn. The transistors 25 M, and M, are identicalwith()M and M, are identical with (The oh M and M4 are identical with = ·The other transistor parameters are: indox-: 0.1 m1A/V2,VTN-0.5 V, γ-0 (body effect coefficient) and λ 0 (channel length modulation...
For the MOSFET circuit, . Given for M1 and M2, and for M3. (A/V2) for all transistors. a) Find the transconductance of all 3 transistors (in terms of Io) and the small-signal voltage gain of the circuit. Assume all transistors are in saturation. b) Find R1 (looking into the source of M1) and R2 (looking into the source of M2). 8nCor 166 L 1 L 4n Cor = 1 Vpp R1 R2
3. Consider the circuit in the Problem #2 again. Assume all transistors are in saturation and Vdd is sufficiently high to keep all transistors in saturation. Assume k, '=100 JAV, k,'= 50 A/V", Vsar = 300mV, n = 0.04, and the DC bias current I1 = 50uA. Also assume all the transistors have the same W/L = 10) except for M3, M6, M7, and M16. M3 is twice as wide, whereas M16 is a quarter (0.25) as wide as the...
4) Consider the MOSFET differential amplifier shown below, with Io-2 mA, and RL- 10 kS2, Rss-100 k2, VDD- +8V and Vss--8V. The NMOS transistors in the circuit are nominally identical, with kn 2 mA/V2, VTn 1.0 V and ro 100 k2. The PMoS transistors in the circuit are nominally identical, with kp 2 mA/V2, [VTpl 1.0 V and ro 100 kΩ M3 M4 0 M1 M2 a) First consider the DC bias point. Assuming that the current mirror requires at...
Look at the circuit below and try not to freak out!). Assume all transistors are in the active mode. You must now decide whether to include or neglect the Early effect (r.) in your model for each transistor - use the rules we established in class (don't just neglect it every time!). & Voc ¢ Voc a VoR Toetan SRE Rino R Fig 2 a) [3 points] Draw a small-signal model for this circuit (this may take a full page...
Problem 1 -Integrated Common Source Amplifier: For the circuit in Fig.1, draw the small signal equivalent circuit and find the following small signal values: gm1 go1 go2 Vout/Vin Rout You can assume that the overdrive voltage for all transistors is 0.2V and A for the NMOS and PMOS are 0.1V1 and 0.05V1 respectively. The drain source current of the transistors M1 and M2 is 20HA. All gate lengths of homework 3.) 0.5um. (The DC analysis for this circuit was done...
1. Design the common source amplifier shown in Figure 1 with Ip- 1 mA and Vo 5 V Determine V2 and Ri. The MOSFET characteristics are V-50 V, k-0.093 A/V, gate-to- drain capacitance, Cd 40 pF, and Vi 1.1 V. (For PSpice simulations, use parameters: VTO. 1.1 LAMBDA-002 KP-0.093 CGDO-4E-7 w=100u L-I00u for the 2N7000 MOSFET.) a. Determine the gain and gm of the circuit b. Determine the low-frequency (high-pass response) poles of the common-source amplifier due to the coupling...
(15 marks) Here is an amplifier operating from VDD-3 V. Rsig-5 kΩ RL = 1 kQ, CL = 100 ff, CGS-20 fF, CGD-4 fF. Assume the dc component of R. si a) Find the dc drain current Id, the dc component of Vo and the MOSFET's b) Draw an ac small-signal equivalent circuit that includes all relevant c) By writing the necessary nodal equations, find the transfer function d) Using the values for the capacitors, resistors etc, determine the poles...