Improving power efficiency of a two-stage operational amplifier for biomedical applications

被引：25

作者：

Akbari, Meysam ^{[1
]}

Nazari, Masoud ^{[2
]}

Sharifi, Leila ^{[2
]}

Hashemipour, Omid ^{[3
]}

机构：

[1] Payame Noor Univ, Dept Elect & Comp Engn, Tehran 193953697, Iran

[2] Shahid Beheshti Univ, Microelect Lab, GC, Tehran, Iran

[3] Shahid Beheshti Univ, Dept Elect & Comp Engn, GC, Tehran, Iran

来源：

ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING | 2015年 / 84卷 / 02期

关键词：

OTA; Weak inversion region; Recycling folded cascode; Feed-forward path; Composite transistor; RECYCLING FOLDED CASCODE; ULTRA-LOW-VOLTAGE; GAIN; OTA; TRANSCONDUCTANCE; CANCELLATION; PERFORMANCE; DESIGN; NOISE;

D O I：

10.1007/s10470-015-0542-y

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

By using compensation technique with feed-forward path, an improved folded cascode operational transconductance amplifier (OTA) that operates in weak inversion region is designed. The proposed configuration consists of composite transistors, recycling structure and feed-forward compensation path. In comparison with the typical folded cascode CMOS Miller amplifier, this design has higher DC gain, unity gain frequency and slew rate without adversely affecting the noise and offset performance. The presented OTA is simulated in 0.18 mu m CMOS technology and the simulation results confirm the theoretical analyses. Finally, the proposed amplifier has a 104.5 dB open-loop DC gain and 69.4 kHz unity gain frequency @ 0.6 V supply voltage while the power consumption is 300 nW.

引用

页码：173 / 183

页数：11

共 50 条

[31] A Broadband Two-stage MMIC Medium-power Amplifier
Li, Yuanyuan
Jin, Long
PIERS 2009 BEIJING: PROGESS IN ELECTROMAGNETICS RESEARCH SYMPOSIUM, PROCEEDINGS I AND II, 2009, : 646 - 648
[32] Design of Two-Stage CMOS Operational Amplifier for Sigma-Delta ADC
Pandey, Saurabh Chandra
Mishra, Pritesh
Roy, Rahul
Pandit, Amit Kant
2016 8TH INTERNATIONAL CONFERENCE ON COMPUTATIONAL INTELLIGENCE AND COMMUNICATION NETWORKS (CICN), 2016, : 566 - 569
[33] Design Optimization of Power and Area of Two-Stage CMOS Operational Amplifier Utilizing Chaos Grey Wolf Technique
Maddileti, Telugu
Salendra, Govindarajulu
Sivappagari, Chandra Mohan Reddy
INTERNATIONAL JOURNAL OF ADVANCED COMPUTER SCIENCE AND APPLICATIONS, 2020, 11 (07) : 465 - 479
[34] Parallel Two-stage Operational Efficiency Evaluation Model for Inner University
Liu R.
You J.
Yu A.
Tongji Daxue Xuebao/Journal of Tongji University, 2019, 47 (04): : 575 - 582
[35] The operational efficiency and pollution characteristics of a two-stage filtration AnMBR reactor
Xia, Zhi-Heng
Li, Ying-Hao
Jiang, Zhao
Jia, Meng-Fei
Wang, Hong-Chen
Qi, Lu
Liu, Guo-Hua
Zhongguo Huanjing Kexue/China Environmental Science, 2024, 44 (11): : 6139 - 6147
[36] Efficiency of a two-stage heat engine at optimal power
Iyyappan, I.
Johal, Ramandeep S.
EPL, 2019, 128 (05)
[37] Inverted asymmetric Doherty power amplifier driven by two-stage symmetric Doherty amplifier
Chun, S. H.
Jang, D. H.
Kim, J. Y.
Kim, J. H.
ELECTRONICS LETTERS, 2010, 46 (17) : 1208 - U62
[38] Improving the efficiency of research proposals evaluation: A two-stage procedure
Seeber, Marco
Svege, Ida
Hesselberg, Jan Ole
RESEARCH EVALUATION, 2024,
[39] Improving Efficiency of Equipment of Two-Stage Vacuum Creating Systems
Vezirov, I. R.
Vezirov, U. R.
Telyashev, E. G.
CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS, 2024, 60 (05) : 1372 - 1376
[40] A low power fully integrated bandpass operational amplifier for biomedical neural recording applications
Mohseni, P
Najafi, K
SECOND JOINT EMBS-BMES CONFERENCE 2002, VOLS 1-3, CONFERENCE PROCEEDINGS: BIOENGINEERING - INTEGRATIVE METHODOLOGIES, NEW TECHNOLOGIES, 2002, : 2111 - 2112

← 1 2 3 4 5 →