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A fully differential operational amplifier with high gain and high bandwidth in deep-sub-mum CMOS is presented. The operational amplifier has up to five serial connected stages. The shown signal-path concept is suitable to reach high gain and bandwidth. The used compensation avoids pole-zero doublet problems. Positive-feedback circuits are used to set the operating point of cascodes and load elements. Production costs are kept low by using only regular-threshold transistors in the design. A DC gain of 99dB and a transit frequency of 330MHz were measured
Published in:
Circuits and Systems, 2006. APCCAS 2006. IEEE Asia Pacific Conference on
Date of Conference: 4-7 Dec. 2006
- Page(s):
- 17 - 20
- Print ISBN:
- 1-4244-0387-1
- INSPEC Accession Number:
- 9474759
- Conference Location :
- Singapore
- Digital Object Identifier :
- 10.1109/APCCAS.2006.342252
- Product Type:
- Conference Publications
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