Linearly tunable transconductor using modified CDBA

Zeki A., TOKER A. , Ozoguz S.

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

  • Publication Type: Article / Article
  • Volume: 26 Issue: 2
  • Publication Date: 2001
  • Doi Number: 10.1023/a:1011250418502
  • Title of Journal : ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING
  • Page Numbers: pp.179-183

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.