An Ultra Low-Voltage, Ultra Low-Power DTMOS-Based CCII Design for Speech Processing Filters

Uygur A., Kutman H.

8th International Conference on Electrical and Electronics Engineering (ELECO), Bursa, Turkey, 28 - 30 November 2013, pp.31-35 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • Doi Number: 10.1109/eleco.2013.6713930
  • City: Bursa
  • Country: Turkey
  • Page Numbers: pp.31-35
  • Istanbul Technical University Affiliated: No


In this study, an ultra low-voltage, ultra low-power dynamic threshold voltage MOS transistor (DTMOS)-based CCII design has been presented. The proposed circuit operates under +/- 0.2 V symmetric power supply. Consisting of only eight transistors, it consumes only 214 nW power while all transistors are working in the subthreshold region. It has a 570 kHz 3 dB-bandwidth from X terminal to Y terminal for the voltage gain. TSMC 0.18 im process technology is used in the design of CCII block which is then employed in a band-pass filter configuration. In order to further investigate its performance, real speech signals are fed to the filter and close agreement is found between theoretical study and simulated responses.