Linearly tunable transconductor using modified CDBA

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Zeki A., TOKER A., Ozoguz S.

ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING, vol.26, no.2, pp.179-183, 2001 (SCI-Expanded)

• Publication Type: Article / Article
• Volume: 26 Issue: 2
• Publication Date: 2001
• Doi Number: 10.1023/a:1011250418502
• Journal Name: ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING
• Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Page Numbers: pp.179-183
• Istanbul Technical University Affiliated: No

Abstract

With a slight modification in current differencing buffered amplifier (CDBA), a new block, namely differential-input current feedback amplifier (DFCA), is obtained. It is shown that, with two additional MOSFETs, this modified CDBA structure can be utilized as a linearly tunable transconductor, which can also be converted to a variable-gain amplifier or an analogue multiplier.