x489-9 active-load differential amplifiers - uc berkeley...
Post on 14-Jun-2018
234 Views
Preview:
TRANSCRIPT
Dr. Vincent Chang (張文清)
LectureActive-Load Differential Amplifiers
Vincent Chang
Copyright © by Knowledge Master, Inc.
Vincent Chang
BJT
• Analysis‐by‐inspection
•Norton equivalent
CMOS
• BJT vs. CMOS•Norton equivalent
• Gain
Output resistance
•Question• Derivation
Dr. Vincent Chang (張文清)
Outline
Dr. Vincent Chang (張文清)
Active-Load D-Amp
Dr. Vincent Chang (張文清)
Active-Load Differential Amplifier
Differential pair
Dr. Vincent Chang (張文清)
Active-Load Differential Amplifier
Differential pair
Current mirror
Dr. Vincent Chang (張文清)
Analysis-by-Inspection
Dr. Vincent Chang (張文清)
Analysis-by-Inspection (Take Note)
1
Dr. Vincent Chang (張文清)
Analysis-by-Inspection
2
Dr. Vincent Chang (張文清)
Analysis-by-Inspection
3
Dr. Vincent Chang (張文清)
Analysis-by-Inspection
3
Current mirror
Dr. Vincent Chang (張文清)
Analysis-by-InspectionCurrent mirror
43
Dr. Vincent Chang (張文清)
Analysis-by-Inspection
5
Dr. Vincent Chang (張文清)
Equivalent Circuit
5
Dr. Vincent Chang (張文清)
Finesse—Norton Equivalent Circuit
5
Dr. Vincent Chang (張文清)
Finesse—Norton Equivalent Circuit
55
Dr. Vincent Chang (張文清)
Finesse—Norton Equivalent Circuit
Dr. Vincent Chang (張文清)
Open-Circuit Voltage Gain
outmd
od Rg
vvA
Dr. Vincent Chang (張文清)
Differential Gain
)( 42 oomoutmd
od rrgRg
vvA
T
Aom
d
od V
VrgvvA
21
21
ooo rrr 42
Vincent Chang
BJT
• Analysis‐by‐inspection
•Norton equivalent
CMOS
• BJT vs. CMOS•Norton equivalent
• Gain
Output resistance
•Question• Derivation
Dr. Vincent Chang (張文清)
Outline
Dr. Vincent Chang (張文清)
BJT Differential Amplifier
Dr. Vincent Chang (張文清)
BJT Differential Amplifier
Differential pair
Current mirror
Dr. Vincent Chang (張文清)
BJT vs. CMOS D-Amp
Differential pair
Current mirror
Differential pair
Dr. Vincent Chang (張文清)
BJT vs. CMOS Differential Amplifier
Differential pair
Current mirror
Differential pair
Current mirror
Dr. Vincent Chang (張文清)
CMOS Differential Amplifier
Dr. Vincent Chang (張文清)
Gain
omoutmd
od rgRg
vvA
21
Vincent Chang
BJT
• Analysis‐by‐inspection
•Norton equivalent
CMOS
• BJT vs. CMOS•Norton equivalent
• Gain
Output resistance
•Question• Derivation
Dr. Vincent Chang (張文清)
Outline
Dr. Vincent Chang (張文清)
Output Resistance
)( 42 oomoutmd
od rrgRg
vvA
Dr. Vincent Chang (張文清)
Output Resistance
Dr. Vincent Chang (張文清)
Output Resistance
Dr. Vincent Chang (張文清)
Output Resistance
Dr. Vincent Chang (張文清)
Output Resistance
Dr. Vincent Chang (張文清)
Output Resistance
Dr. Vincent Chang (張文清)
Output Resistance
Dr. Vincent Chang (張文清)
Output Resistance
Dr. Vincent Chang (張文清)
Output Resistance
Dr. Vincent Chang (張文清)
Output Resistance
Dr. Vincent Chang (張文清)
Output Resistance
222
1222
1222
2)1(
)||()1(
ooo
eomo
eoo
rrrrrgrrrrR
Dr. Vincent Chang (張文清)
Output Resistance
222
1222
1222
2)1(
)||()1(
ooo
eomo
eoo
rrrrrgrrrrR
Dr. Vincent Chang (張文清)
Output Resistance
222
1222
1222
2)1(
)||()1(
ooo
eomo
eoo
rrrrrgrrrrR
Dr. Vincent Chang (張文清)
Output Resistance
222
1222
1222
2)1(
)||()1(
ooo
eomo
eoo
rrrrrgrrrrR
Dr. Vincent Chang (張文清)
Output Resistance
21
o
tt R
vi
Dr. Vincent Chang (張文清)
Output Resistance
21
o
tt R
vi
Dr. Vincent Chang (張文清)
Output Resistance
21
o
tt R
vi
Dr. Vincent Chang (張文清)
Output Resistance
21
o
tt R
vi
Current mirror
Dr. Vincent Chang (張文清)
Output Resistance
21
o
tt R
vi
Current mirror
Dr. Vincent Chang (張文清)
Output Resistance
21
o
tt R
vi
4o
t
rv
Dr. Vincent Chang (張文清)
Output Resistance
21
o
tt R
vi
4o
t
rv
Dr. Vincent Chang (張文清)
Output Resistance
)11(
222
42
4242
42221
oot
o
t
o
t
o
t
o
t
o
t
o
t
o
tttt
rrv
rv
rv
rv
Rv
rv
Rv
Rviii
21
o
tt R
vi
4o
t
rv
Dr. Vincent Chang (張文清)
Output Resistance
)11(
222
42
4242
42221
oot
o
t
o
t
o
t
o
t
o
t
o
t
o
tttt
rrv
rv
rv
rv
Rv
rv
Rv
Rviii
21
o
tt R
vi
4o
t
rv
Dr. Vincent Chang (張文清)
Output Resistance
21
o
tt R
vi
4o
t
rv
)11(
222
42
4242
42221
oot
o
t
o
t
o
t
o
t
o
t
o
t
o
tttt
rrv
rv
rv
rv
Rv
rv
Rv
Rviii
Dr. Vincent Chang (張文清)
Output Resistance
21
o
tt R
vi
4o
t
rv
)11(
222
42
4242
42221
oot
o
t
o
t
o
t
o
t
o
t
o
t
o
tttt
rrv
rv
rv
rv
Rv
rv
Rv
Rviii
1
42
1 )11()/( oo
ttout rrviR
Dr. Vincent Chang (張文清)
Output Resistance
21
o
tt R
vi
4o
t
rv
42 || ooout rrR
1
42
1 )11()/( oo
ttout rrviR
Dr. Vincent Chang (張文清)
Output Resistance
222
1222
1222
2)1(
)||()1(
ooo
eomo
eoo
rrrrrgrrrrR
Dr. Vincent Chang (張文清)
WARNING
The course contents are protected under thecopyright laws of the United States, Taiwan andother countries. All intellectual property rights ofthe course contents are reserved by KnowledgeMaster, Inc. Any distributing, copying or publicperformance of such course contents, includingPowerPoint slides and audio sound-track, is strictlyprohibited and may subject the offender to severecriminal penalties. (Title 17, United State Code, Section 501 &506)(本课程内容智慧财产权属Knowledge Master, Inc. 所有，并受到美国，台湾等国家著作权法律保护，禁止任何复制与公开播放。)
Copyright © by Knowledge Master, Inc.
top related