High-output-impedance CMOS dual-output OTA suitable for wide-range continuous-time filtering applications

Zeki A., Kuntman H.

ELECTRONICS LETTERS, vol.35, no.16, pp.1295-1296, 1999 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 35 Issue: 16
  • Publication Date: 1999
  • Doi Number: 10.1049/el:19990922
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1295-1296
  • Istanbul Technical University Affiliated: No


A high-output-impedance precision current mirror is implemented in a CMOS dual-output OTA (DOTA) structure by means of an efficient implementation method, which is also applicable to other current-output-based active devices. The new DOTA, when used in a DOTA-C integrator, enables integration at very low Frequencies, with a capacitor on the order of several picofarads.