Mini-Field Research Report
Name: 吴沛文
Class: GB0810D
PART ONE：Select one or two important papers or works
所选文章题
目:
The Design of Fast-Settling Three-Stage Amplifiers Using the
Open-Loop Damping Factor as a Design Parameter
作者：
Ray Nguyen; Boris Murmann
作者归属地（大学、研究所…）： Dept. of Electr. Eng., Stanford Univ., Stanford, CA, USA
来源（期刊、会议…）： Circuits and Systems I: Regular Papers, IEEE Transactions on
选择标准（影响因子、引用 影响因子
次数、教授或前辈推荐…）：
PART TWO：
1 需要调研的范围，及先后顺序：
范围
顺序
Three-Stage Amplifiers
1
Fast-Settling/setting time/setting performance
2
Design Parameter
3
Open-Loop Damping Factor/open-loop transfer function
4
2 根据 1 搜索到的主要文献：
1
Full Custom Design of a Three-Stage Amplifier with
5500MHz·pF/mW Performance in 0.18μm CMOS
(keywords: Three-Stage Amplifier)
2
AMPLIFIER DESIGN FOR FAST SETTLING PERFORMANCE
(keywords: AMPLIFIER + SETTLING PERFORMANCE)
3
Design of a Fully Differential Gain-Boosted Folded-Cascode Op Amp with
Settling Performance Optimization
(keywords: SETTLING PERFORMANCE)
4
FAST-SETTLING CMOS TWO-STAGE OPERATIONAL TRANSCONDUCTANCE
AMPLIFIERS AND THEIR SYSTEMATIC DESIGN
(keywords: AMPLIFIER + SETTLING PERFORMANCE)
5
An improved design formulation for design and optimization of operational
amplifiers
(keywords: AMPLIFIER + DESIGN PARAMETERS/ DESIGN OPTIMIZATION)
6
Design of Cascode-Compensated Opamps Based on Settling Time and
Open-Loop Parameters
(keywords: AMPLIFIER + DESIGN PARAMETERS + open-loop transfer function )
7
Damping-factor-control frequency compensation technique for low-voltage
low-power large capacitive load applications
(keywords: Damping-factor)
8
Settling time analysis of third order systems
(keywords: Settling time+ loop transfer functions)
3 将 2 中的文献归类，判断阅读先后顺序和目标：
优 先
级
文献
目标
1
Full Custom Design of a Three-Stage
Amplifier with
5500MHz·pF/mW Performance in
0.18μm CMOS
To be clear about what is
Three-Stage Amplifier and its
performance index.
2
AMPLIFIER DESIGN FOR
SETTLING PERFORMANCE
To understand what is settling
performance of an amplifier and
how it affects the performance of
the amplifier.
2
Design of a Fully Differential
Gain-Boosted Folded-Cascode Op
Amp with Settling Performance
Optimization
The same as above
2
FAST-SETTLING CMOS TWO-STAGE
OPERATIONAL
TRANSCONDUCTANCE
AMPLIFIERS
AND
THEIR
SYSTEMATIC DESIGN
The same as above
3
An improved design formulation for
design
and
optimization
of
operational amplifiers
Main methods in designing an
amplifier.
What
are
their
advantages and disadvantages
compared with mine？
4
Settling time analysis of third order
systems
Minimizing settling time by
optimizing parameters in closed
and open-loop transfer function.
To get to know about how other
parameters rather than dumping
factor affect the performance.
4
Design of Cascode-Compensated
Opamps Based on Settling Time and
Open-Loop Parameters
The same as above
5
Damping-factor-control
frequency
compensation
technique
for
low-voltage
low-power
large
To get to know what other people
are doing with the same methods.
To find out the similarities and
FAST
capacitive load applications
differences.
4 其他补充材料，及阅读目标（可选）：
文献
目标
A dual complex pole-zero cancellation compensation mode
for three-stage amplifier
Other methods to
optimize
settling
time mentioned in
the paper. And is
thought
to
be
inferior
to
the
damping
factor
method.
To
make
sure
whether it is true
that the method in
the paper surpass
other methods in all
aspects.
Settling time analysis of third order systems
The same as above
Settling time minimization of operational amplifiers
The same as above
Design procedure for settling time minimization in
three-stage nested-Miller amplifiers
The same as above
Settling time optimization for three-stage CMOS amplifier
topologies
The same as above
PART THREE：Report（将阅读内容归类到以下问题的回答当中）
1.
你所调研的的文章属于什么 Subfield /Topic：
Circuits and Systems  Analog and Mixed Mode Circuits and Systems
2. 该 Subfield/Topic 下主要在研究的问题是什么，其中热点问题/分支是什么：
1. Circuit design: ADC, DAC, low power, RF
2. Improvement of performance:
Amplifier: Bandwidth Enhancement, Low Group-Delay, fast-settling time
low power
low noise
3. Theory & simulation
4. Applications
3. 和你相关的热点问题是什么？其他老师在研究什么？
Related problem: improvement in both of Speed and accuracy of analog circuits
Other researches: Transimpedance Limit, Error Estimation, noise
4. 你的科研/你所调研的科研的价值是什么？
THE TRANSIENT settling performance is among the most critical aspects of
high-speed amplifiers employed in precision switched-capacitor (SC) circuits. In the
literature of frequency compensation techniques for three-stage amplifiers, however,
this performance metric is sometimes neglected. Although not significant in
continuous-time applications, the poor settling performance of various published
topologies often renders them unsuitable for many SC applications such as
analog-to-digital converters. Since three-stage amplification is becoming more
attractive as transistor channel lengths and intrinsic device gain continue to scale
down, it is desirable to identify techniques that address this issue.
5. 其他：
Disadvantages of other traditional methods:
1. pole-zero cancellation or phase margin (PM) adjustment: strong sensitivity to
component variations
2. closed-loop transfer functions (CLTF) and/or rigorous numerical simulations:
require additional numerical simulations and an accurate closed-form solution of the
CLTF of the implemented three-stage amplifier which can be difficult to obtain in
practice
Advantages of the method discussed in this paper:
The resulting design approach requires knowledge and optimization of only the
OLTF, which is usually straightforward to derive in practice. This approach therefore
allows designers to avoid the need for numerical simulations and circumvents the
difficulties in obtaining the CLTFs of sophisticated topologies. As a general
conclusion, we show that fast settling requires a properly adjusted open-loop
damping factor.