Referenced Items are not available for this document.
Linearity performance in class AB CMOS current output stages is discussed, and simplified equations are derived for the harmonic distortion. It was found that channel-length modulation and transistor mismatches are the main sources of distortion in current output stages. A novel high-performance class AB current output stage is also presented which is based on active-gain enhanced cascoded mirrors. It overcomes the nonlinearity caused by channel-length modulation and provides a very high output resistance. The linearity performance of the proposed circuit is only limited by the fundamental constraints due to transistor mismatches
Published in:
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
(Volume:45
,
Issue:
2
)
Date of Publication: Feb 1998
- Page(s):
- 243 - 250
- ISSN :
- 1057-7130
- INSPEC Accession Number:
- 5861260
- Digital Object Identifier :
- 10.1109/82.661662
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Feb 1998
- Sponsored by :
- IEEE Circuits and Systems Society
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