55:041 Electronic Circuits. The University of Iowa. Fall 2011.
Homework Assignment 10
Question 1 (1 point unless noted otherwise)
1.
In the circuit below, what is the maximum current that can flow thr
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ECE:3410 Quiz 11
An engineer uses the circuit shown to measure the
input bias current of the op amp. She measures the
output voltage at = 0 as 102 mV, and then opens
the switch. She me
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ECE:3410 Quiz 1
14
Below are the output characte
w
eristsics forn an n-chann MOSFET Fill in the missing
n
nel
T.
e
blank Also, com
ks.
mplete the fo
ollowing: in the satura
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ECE:3410 Quiz 1
18
tion 1 For the NMOS FET amplifier dr and
e
T
raw
the small-sign equivalen model. The provide
nal
nt
en
pression for calculate the gain . (7 points).
c
g
(
tion
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ECE:3410 Quiz 17
Draw a small-signal model for the amplifier shown. Then
show that the voltage gain is
=
1 +
For the FET, you can ignore , and assume .
(8 points)
Estimate assuming
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ECE:3410 Quiz 16
Draw a small-signal model for the amplifier shown. Then
show that the voltage gain is
=
1 +
For the FET, you can ignore , and assume .
Solution
Small-signal model
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ECE:3410 Quiz 1
15
1.
The followin symbol ind
ng
dicates which type of trans
sistor? (1 poin
nt)
(a)
(b)
(c)
(d)
(e)
Channel MOS
SFET
n-C
n-C
Channel JFET
T
p-C
Channel MOS
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ECE:3410 Quiz 13
Question 1 An engineer uses the circuit shown to estimate both the input offset voltage and
input bias current for the op-amp as follows. A = 0 she opens the switch an
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ECE:3410 Quiz 12
Question 1 Using BJT scaling techniques, estimate the
input resistance of the amplifier shown if =
6.3 mA, = 200, 800, and . Estimate
the voltage gain. (5 points)
Solu
55:041 Electronic Circuits. The University of Iowa. Fall 2011.
Homework Assignment 01
Question 1 (I&N 9th 4.FE-1) Given the summing amplifier shown below, determine the value
of
that will produce an o
55:041 Electronic Circuits. The University of Iowa. Fall 2011.
Homework Assignment 0 9
Question 1 (1 point unless noted otherwise)
1.
Sketch a two- transistor configuration using npn and pnp BJTs that
55:041 Electronic Circuits. The University of Iowa. Fall 2011.
Homework Assignment 08
Question 1
Determine the maximum power ratings for the transistor. (15 points)
Solution
The maximum current that c
55:041 Electronic Circuits. The University of Iowa. Fall 2011.
Homework Assignment 07
Question 1 (1 point unless noted otherwise)
1.
Consider the current mirror below, and neglect base currents. What
55:041 Electronic Circuits. The University of Iowa. Fall 2011.
Homework Assignment 06
Question 1 (1 point unless noted otherwise)
With respect to MOSFETs, the units of
(PMOS)
VA
VA
VA
AV
(a)
(b)
(c)
55:041 Electronic Circuits. The University of Iowa. Fall 2011.
Homework Assignment 05
Question 1 (1 point unless noted otherwise)
1.
True or false: in IC circuits, transistors are often used to replac
55:041 Electronic Circuits. The University of Iowa. Fall 2011.
Homework Assignment 04
Problem 1 (Quick Takes 1 point each unless indicated otherwise)
1.
Explain with one word/phrase what every letter
55:041 Electronic Circuits. The University of Iowa. Fall 2011.
Homework Assignment 03
Problem 1 (Quick Takes 1 point each unless indicated otherwise)
1.
True or false: when transforming a circuits dia
55:041 Electronic Circuits. The University of Iowa. Fall 2011.
Homework Assignment 0 2
Question 1
a)
Define the CMRR for a differential amplifier. What is the ideal value? (2 points)
Answer:
b)
What i
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ECE:3410 Quiz 19
Question 1 Draw a small-signal model for the amplifier and
then show that the output resistance is = (1 ) .
Assume that = 0 for the FET, and . (5 points)
Solution
The