EECS
170C
04/04/207 Lecture
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Spring 2006, EECS 17o Quiz l l +6 %
Name:
UCI Student ID:
Signature:
Problem 1: 15%
Problem 2: 15%
Problem 3: 30%
Problem 4: 40%
Total: 100% 1. Assume (W/L)M2 = 4 * (W/L)M1 and M3=M4; also assume all the transistors are in saturation region.
(a) Expres
UCI EECS 170C Electronics III I Spring 2015
Name: 
In the following circuit, transistor [3 can be assumed to be innite and VBE(0,)='O.7 Volts.
Early effect can be ignored. Determine the indicated voltages.
L00? 6%th Invaaamg l/Bf(m)
"3/+6 ag: 0 7VTHOKIBJ
UCI EECS 170C Electronics 111 Quiz 3 Spring 2015
Name: 
In the following circuit, I = 0.1 mA, ,unCox = 200 uA/VZ, W/L = 1 and VA = 00. Transistor
can be assumed to be in saturation region, therefore, there is no need to perform dc
analysis. Can/few? (50
Name
Student ID #
Problem 1 (10 points):
The closedloop amplier circuit shown in Fig. 1 uses an opamp with nite openloop gain A. You
can assume that the opamp input currents are both zero.
(a) If the dc component of Vm is 1 V, nd the dc component of Vout
EECS170C QUIZ 1 Spring 2006
Name UCI ID#
Problem 1 (16 points) A twostage amplier is shown in Figure 1. Assume
[i=100; uCox=100uA/V2, W=10um, L=0.5um, Vt=1V; RA=RB=1KQ. Assume VB=3V
and Vcc=5.5V.
Figure 1
(a) ignore output resistance of Q1 and M1, nd t
EECS 170LC Laboratory Assignment #1
Prof. M. Green
Overview
In this lab we measure the d harateristis of MOSFETs.
Measurement Assignment
You will be using the CD4007 MOSFET transistors provided to you by your lab TA. The data
sheet for this part an be dow
4/25/2011
The MOSFET Current Mirror
1/6
The MOSFET
Current Mirror
Consider the following MOSFET circuit:
VDD
Note VD = VG , therefore:
ID
VDS = VGS
R
and thus:
VDS > VGS Vt
+
So, if VGS > Vt , then the

MOSFET is in saturation!
VGS
We know that for a MOS
Name _
ID # _
Problem 1 (10 points):
The closedloop amplifier circuit shown in Fig. 1 uses an opamp with finite openloop gain Av ; i.e.,
Vout = Av (V+ V ). You can assume that the opamp input currents are both zero.
(a) Find the dc component of Vout i
Solutions to EECS 170C Homework #4
Prof. M. Green
1. (a) The smallsignal schematic of a diodeconnected transistor is shown in Fig. 1. The KCL
equation taking at the two terminals is given by:
vgs
ro
i = gm vgs +
Thus the resistance across the terminals
EECS 170C Homework #2
Prof. M. Green
due Tuesday, April 18 before lecture
1. (a) In the feedback amplifier shown in Fig. 1(a), the opamp has an openloop gain of A.
Find the closedloop gain Vout /Vin in terms of A and the resistor values R1 and R2 .
(b)
EECS 170C Simulation Assignment for Homework #1
Prof. M. Green
due Tuesday April 18, before beginning of lecture
Simulation Assignment
Use the CMOS transistor models linked on the Homework web page.
Sim1. For the circuit shown in Fig. 1(a), run a dc sweep
EECS 170C Homework #4
Prof. M. Green
due Tuesday May 2 before lecture
1. (a) Find the expression for the smallsignal resistance rdiode of a diodeconnected nchannel
MOSFET in terms of smallsignal parameters.
(b) Rewrite the expression you found in part
Solutions to EECS170C Homework #8
Prof. M. Green
1. (a) First we express V in terms of Vout , derived from the resistive feedback:
V =
R2
Vout f Vout
R1 + R2
We can then write:
Vout = A(s)(V+ V ) = A(s)(Vin f Vout )
which, as shown in class, gives:
H(s) =
UCI EECS 170C Electronics 111 Spring 2015
Quiz 2
Name: 
In the following circuit, transistor has [3 = 100, [VBEmml = 0.7 and Early effect can be
ignored. vsig = 1>< 10'3sirza)! Volts. Determine vc = Vc+vc (both DC and small signal
components of collector
EECS 170C Homework #3
Prof. M. Green
due Tuesday, April 19 before lecture
1. A commonsource amplifier with source degeneration is shown in Fig. 1. For the following
questions, you can assume that ro = .
(a) Find the transfer function H(s) = Vout (s)/Vin
EECS 170C Homework #4
Prof. M. Green
due Tuesday April 26 before lecture
1. In the circuit shown in Fig. 1, use the following parameters: VDD = 1.8V; Vt = 0.5V;
k 0 = 150A/V2 . Assume that the transistors have identical characteristics. Neglect the ro of
Solutions to EECS170C Homework #3
1. (a) The smallsignal schematic of the amplifier is shown in Fig. 1. We can write the following
node equations, corresponding to KCL at vout and vs , respectively:
vout
+ gm (vin vs ) = 0
RD
vs
gm (vin vs ) +
= 0
Zs (s)
Solutions to EECS 170C Homework #2
Prof. M. Green
1. Before drawing the urves we must rst determine in whih region of operation the transistor
is biased for a given IB . First the easy part: If IB = 0, then we know that the transistor
must be uto (i.e., b
EECS 170C Homework #2
Prof. M. Green
due Tuesday, April 12 before lecture
1. For the npn transistor shown in Fig. 1, assume f = 98/99, VBE(on) = 0.7V and VCE(sat) =
0.2V . Plot Vout , IC , IE and IC /IB as a function of IB for 0 IB 150A. You can assume
th
EECS 170C Homework #1
Prof. M. Green
due Tuesday April 5, before beginning of lecture
1. (a) In Fig. 1(a) assume that VS and RS have fixed positive values. Find the value of
RL , in terms of the other circuit components, that gives the maximum possible po
Solution to EECS 170C Homework #1
Prof. M. Green
1. (a) The voltage across RL , found by using the voltage divider formula, is given by
VL = VS
RL
.
RL + RS
From this we can find the power dissipated in RL , given by
PL =
VL2
VS2 RL
=
.
RL
(RL + RS )2
To
UCI EECS 170C Electronics III Quiz 4 Spring 2015
Name: 
In the following circuit, transistors can be assumed to be in saturation region; therefore,
there is no need to perform dc analysis. For each transistor, Vov = 0.2 V, Vt = 0.4 V and
VD1=VD2=O.1 Volt
99565
University of California, Irvine EECS 170C MidTerm (B) Spring 2015
NAME: . .Salufbm .
SIGNATURE:  UCID# 
Pl: Consider the two stage amplier. The MOSF ET transistors have Vm = 0.8 V, W = 
0.8 volts, upCOx W/L = 0.2 mA/Vz, unCox W/L = 0.5 mA/V2 an
(a)
(b)
(C)
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Name UCIID#
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