New tunable resistorless CM first-order filter based on single CBTA and grounded capacitor

Herencsar N., Koton J., Sagbas M., AYTEN U. E.

59th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2016, Abu Dhabi, United Arab Emirates, 16 - 19 October 2016, vol.0, (Full Text) identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 0
  • Doi Number: 10.1109/mwscas.2016.7870064
  • City: Abu Dhabi
  • Country: United Arab Emirates
  • İstanbul Yeni Yüzyıl University Affiliated: Yes

Abstract

A new realization of an analog circuit topology realizing current-mode (CM) first-order low-pass (LP), high-pass (HP), and all-pass (AP) filter responses using current backward transconductance amplifier (CBTA) and single grounded capacitor is introduced. The investigated resistorless CBTA-C AP filter provides electronic tunability of the pole frequency in range from 763 kHz to 17.6 MHz and its maximum power dissipation is 828W. Non-ideal analysis, study of parasitic effects, output/ input noise variations, and Monte Carlo analyses results are given. The theory is verified by SPICE simulations using a new low-voltage structure of CBTA via PTM 0.09 μm level-7 CMOS process BSIM3v3 parameters with ±0.45 V supply voltages.