Residential College | false |
Status | 已發表Published |
A 0.0045-mm2 32.4-μW Two-Stage Amplifier for pF-to-nF Load Using CM Frequency Compensation | |
Zushu Yan1; Wei Wang1; Pui-In Mak1; Man-Kay Law1; Rui P. Martins1,2 | |
2015-03-01 | |
Source Publication | IEEE Transactions on Circuits and Systems II: Express Briefs |
ISSN | 1549-7747 |
Volume | 62Issue:3Pages:246-250 |
Abstract | This brief reports an embedded capacitor multiplier (CM) frequency compensation technique to realize an extremely compact micropower two-stage amplifier for wide capacitive load (C) drivability. It features: 1) a valuable left half-plane zero to enhance the closed-loop stability over a wide range of C; 2) no extra bias circuit and power, as the CM is embedded into the first stage of the amplifier, and 3) only one very small (subpicofarad) compensation capacitor improving the transient settling and area efficiency. Detailed analytical treatments of the amplifier offer the critical insights for device sizing and optimization. Fabricated in 0.18-μm CMOS, the amplifier measures 3.06-MHz unity-gain frequency (UGF), 1.76-V/μs average slew rate (SR), and 74° phase margin (PM) at 20-pF C, and 0.22-MHz UGF, 0.049-V/μs SR, and 59.8° PM at 15-nF C. The die size is 0.0045 mm, and power is 32.4 μW at 1.2 V. Competitive large- and small-signal figures of merit are achieved with respect to the state of the art. |
Keyword | Capacitive Load Capacitor Multiplier Cmos Frequency Compensation Stability Two-stage Amplifier |
DOI | 10.1109/TCSII.2014.2368972 |
URL | View the original |
Indexed By | SCIE |
Language | 英語English |
WOS Research Area | Engineering |
WOS Subject | Engineering, Electrical & Electronic |
WOS ID | WOS:000350884900007 |
Scopus ID | 2-s2.0-84924405018 |
Fulltext Access | |
Citation statistics | |
Document Type | Journal article |
Collection | THE STATE KEY LABORATORY OF ANALOG AND MIXED-SIGNAL VLSI (UNIVERSITY OF MACAU) Faculty of Science and Technology INSTITUTE OF MICROELECTRONICS DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING |
Affiliation | 1.State Key Laboratory of Analog and Mixed-Signal VLSI and the Faculty of Science and Technology, Department of Electrical and Computer Engineering (ECE), University of Macau, Macau, China 2.Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal |
First Author Affilication | Faculty of Science and Technology |
Recommended Citation GB/T 7714 | Zushu Yan,Wei Wang,Pui-In Mak,et al. A 0.0045-mm2 32.4-μW Two-Stage Amplifier for pF-to-nF Load Using CM Frequency Compensation[J]. IEEE Transactions on Circuits and Systems II: Express Briefs, 2015, 62(3), 246-250. |
APA | Zushu Yan., Wei Wang., Pui-In Mak., Man-Kay Law., & Rui P. Martins (2015). A 0.0045-mm2 32.4-μW Two-Stage Amplifier for pF-to-nF Load Using CM Frequency Compensation. IEEE Transactions on Circuits and Systems II: Express Briefs, 62(3), 246-250. |
MLA | Zushu Yan,et al."A 0.0045-mm2 32.4-μW Two-Stage Amplifier for pF-to-nF Load Using CM Frequency Compensation".IEEE Transactions on Circuits and Systems II: Express Briefs 62.3(2015):246-250. |
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