Current Mode Biquad Filter with Minimum Component Count

Abstract

The paper presents a new current mode biquadratic filter with one input and three outputs using differential voltage current conveyor (DVCC) and four passive components. The proposed circuit can simultaneously realize low-pass, band-pass, and highpass filter functions without changing the circuit topology and passive elements. The circuit exhibits a good frequency performance and low-sensitivity figures. PSPICE simulation using 0.5 μm CMOS parameters are given to validate the proposed circuit. The circuit provides a simple yet novel solution to the current-mode filtering after appropriate incorporation of current sensing elements in form of current buffers.

Resistor-Less Single-Purpose or Reconfigurable Biquads Utilizing Single z-Copy Controlled-Gain Voltage Differencing Current Conveyor

“…5. There are drawbacks of many solutions regarding only limited and passive control (by R or C) of specific features [3], [33], [34], [41]- [44]. Therefore, electronic controllability of some solutions is very restricted or not allowed.…”

Resistor-Less Single-Purpose or Reconfigurable Biquads Utilizing Single z-Copy Controlled-Gain Voltage Differencing Current Conveyor

“…5. There are drawbacks of many solutions regarding only limited and passive control (by R or C) of specific features [3], [33], [34], [41]- [44]. Therefore, electronic controllability of some solutions is very restricted or not allowed.…”

Differential Precision Rectifier using Single CMOS DVCC

“…The above transfer gains slightly deviate from unity and the deviations are quite small and technology dependent [14]. By including these non-ideal effects the DVCC the DC output of the HW-DPR given in equation (3) Similarly, the DC output of the full wave DPRSO as well as for DPRDO given in equation (4) …”

Active‐C Realization of Multifunction Biquadratic Filter and Third‐Order Oscillator

“…Current conveyor and its variants are the basic building blocks which are commonly used for circuit design using current‐mode approach (Channumsin et al, ; Chaturvedi & Maheshwari, ; Chaturvedi et al, ; Chaturvedi et al, ; El‐Adawy et al, ; Herencsar et al, ; Kumar & Chaturvedi, ; Kumar & Chaturvedi, ; Kumar & Chaturvedi, ; Kumar, Chaturvedi, & Maheshwari, ; Kumar, Chaturvedi, Mohan, & Maheshwari, ; Lee & Chang, ; Maheshwari, ; Maheshwari & Khan, ; Maheshwari et al, ; Minaei & Yuce, ; Minaei et al, ; Mohan et al, ; Mohan et al, ; Pushkar et al, ; Sangyaem et al, ; Supavarasuwat et al, ; Tangsrirat et al, ; Yuce, ; Yuce & Tez, ; Yucel & Yuce, ). Therefore, the multifunction filters based on current‐mode approach (Channumsin et al, ; Chaturvedi et al, ; Chaturvedi & Maheshwari, ; Herencsar et al, ; Kumar & Chaturvedi, ; Maheshwari, ; Maheshwari et al, ; Maheshwari & Khan, ; Minaei et al, ; Minaei & Yuce, ; Mohan et al, ; Pushkar et al, ; Sangyaem et al, ; Supavarasuwat et al, ; Tangsrirat et al, ; Yuce, ; Yuce & Tez, ; Yucel & Yuce, ) are found more advantageous over multifunction filters based on voltage‐mode approach (Minaei et al, ; Tsukutani et al, ; Tsukutani et al, ). The study of circuits of voltage input voltage output‐type multifunction filters (Channumsin et al, ; Herencsar et al, ; Maheshwari, ; Maheshwari & Khan, ; Maheshwari et al, ; Minaei & Yuce, ; Minaei et al, ; Minaei et al, ; Mohan et al, ; Pushkar e...…”

“…On the other hand, the current-mode approach has been widely used in the last decade to design different types of analog circuits due to its several advantages over voltage-mode approach. Current conveyor and its variants are the basic building blocks which are commonly used for circuit design using current-mode approach (Channumsin et al, 2012;Chaturvedi & Maheshwari, 2011;Chaturvedi et al, 2018;Chaturvedi et al, 2019;El-Adawy et al, 2000;Herencsar et al, 2013;Kumar & Chaturvedi, 2017a;Kumar & Chaturvedi, 2017b;Kumar, Chaturvedi, Mohan, & Maheshwari, 2017;Lee & Chang, 2009;Maheshwari, 2008;Maheshwari & Khan, 2005;Maheshwari et al, 2010;Minaei & Yuce, 2009;Minaei et al, 2003;Mohan et al, 2014;Mohan et al, 2016;Pushkar et al, 2014;Sangyaem et al, 2017;Supavarasuwat et al, 2018;Tangsrirat et al, 2013;Yuce, 2017;Yuce & Tez, 2018;Yucel & Yuce, 2017). Therefore, the multifunction filters based on current-mode approach (Channumsin et al, 2012;Chaturvedi et al, 2018;Chaturvedi & Maheshwari, 2011;Herencsar et al, 2013;Maheshwari, 2008;Maheshwari et al, 2010;Maheshwari & Khan, 2005;Minaei et al, 2006;Minaei & Yuce, 2009;Mohan et al, 2014;Pushkar et al, 2014;Sangyaem et al, 2017;Supavarasuwat et al, 2018;…”

Resistor-Less Single-Purpose or Reconfigurable Biquads Utilizing Single z-Copy Controlled-Gain Voltage Differencing Current Conveyor

“…5. There are drawbacks of many solutions regarding only limited and passive control (by R or C) of specific features [3], [33], [34], [41]- [44]. Therefore, electronic controllability of some solutions is very restricted or not allowed.…”

Differential Precision Rectifier using Single CMOS DVCC

“…The above transfer gains slightly deviate from unity and the deviations are quite small and technology dependent [14]. By including these non-ideal effects the DVCC the DC output of the HW-DPR given in equation (3) Similarly, the DC output of the full wave DPRSO as well as for DPRDO given in equation (4) …”

Active‐C Realization of Multifunction Biquadratic Filter and Third‐Order Oscillator

“…Current conveyor and its variants are the basic building blocks which are commonly used for circuit design using current‐mode approach (Channumsin et al, ; Chaturvedi & Maheshwari, ; Chaturvedi et al, ; Chaturvedi et al, ; El‐Adawy et al, ; Herencsar et al, ; Kumar & Chaturvedi, ; Kumar & Chaturvedi, ; Kumar & Chaturvedi, ; Kumar, Chaturvedi, & Maheshwari, ; Kumar, Chaturvedi, Mohan, & Maheshwari, ; Lee & Chang, ; Maheshwari, ; Maheshwari & Khan, ; Maheshwari et al, ; Minaei & Yuce, ; Minaei et al, ; Mohan et al, ; Mohan et al, ; Pushkar et al, ; Sangyaem et al, ; Supavarasuwat et al, ; Tangsrirat et al, ; Yuce, ; Yuce & Tez, ; Yucel & Yuce, ). Therefore, the multifunction filters based on current‐mode approach (Channumsin et al, ; Chaturvedi et al, ; Chaturvedi & Maheshwari, ; Herencsar et al, ; Kumar & Chaturvedi, ; Maheshwari, ; Maheshwari et al, ; Maheshwari & Khan, ; Minaei et al, ; Minaei & Yuce, ; Mohan et al, ; Pushkar et al, ; Sangyaem et al, ; Supavarasuwat et al, ; Tangsrirat et al, ; Yuce, ; Yuce & Tez, ; Yucel & Yuce, ) are found more advantageous over multifunction filters based on voltage‐mode approach (Minaei et al, ; Tsukutani et al, ; Tsukutani et al, ). The study of circuits of voltage input voltage output‐type multifunction filters (Channumsin et al, ; Herencsar et al, ; Maheshwari, ; Maheshwari & Khan, ; Maheshwari et al, ; Minaei & Yuce, ; Minaei et al, ; Minaei et al, ; Mohan et al, ; Pushkar e...…”

“…On the other hand, the current-mode approach has been widely used in the last decade to design different types of analog circuits due to its several advantages over voltage-mode approach. Current conveyor and its variants are the basic building blocks which are commonly used for circuit design using current-mode approach (Channumsin et al, 2012;Chaturvedi & Maheshwari, 2011;Chaturvedi et al, 2018;Chaturvedi et al, 2019;El-Adawy et al, 2000;Herencsar et al, 2013;Kumar & Chaturvedi, 2017a;Kumar & Chaturvedi, 2017b;Kumar, Chaturvedi, Mohan, & Maheshwari, 2017;Lee & Chang, 2009;Maheshwari, 2008;Maheshwari & Khan, 2005;Maheshwari et al, 2010;Minaei & Yuce, 2009;Minaei et al, 2003;Mohan et al, 2014;Mohan et al, 2016;Pushkar et al, 2014;Sangyaem et al, 2017;Supavarasuwat et al, 2018;Tangsrirat et al, 2013;Yuce, 2017;Yuce & Tez, 2018;Yucel & Yuce, 2017). Therefore, the multifunction filters based on current-mode approach (Channumsin et al, 2012;Chaturvedi et al, 2018;Chaturvedi & Maheshwari, 2011;Herencsar et al, 2013;Maheshwari, 2008;Maheshwari et al, 2010;Maheshwari & Khan, 2005;Minaei et al, 2006;Minaei & Yuce, 2009;Mohan et al, 2014;Pushkar et al, 2014;Sangyaem et al, 2017;Supavarasuwat et al, 2018;…”

Resistor-Less Single-Purpose or Reconfigurable Biquads Utilizing Single z-Copy Controlled-Gain Voltage Differencing Current Conveyor

“…5. There are drawbacks of many solutions regarding only limited and passive control (by R or C) of specific features [3], [33], [34], [41]- [44]. Therefore, electronic controllability of some solutions is very restricted or not allowed.…”

Differential Precision Rectifier using Single CMOS DVCC

“…The above transfer gains slightly deviate from unity and the deviations are quite small and technology dependent [14]. By including these non-ideal effects the DVCC the DC output of the HW-DPR given in equation (3) Similarly, the DC output of the full wave DPRSO as well as for DPRDO given in equation (4) …”

Active‐C Realization of Multifunction Biquadratic Filter and Third‐Order Oscillator

“…Current conveyor and its variants are the basic building blocks which are commonly used for circuit design using current‐mode approach (Channumsin et al, ; Chaturvedi & Maheshwari, ; Chaturvedi et al, ; Chaturvedi et al, ; El‐Adawy et al, ; Herencsar et al, ; Kumar & Chaturvedi, ; Kumar & Chaturvedi, ; Kumar & Chaturvedi, ; Kumar, Chaturvedi, & Maheshwari, ; Kumar, Chaturvedi, Mohan, & Maheshwari, ; Lee & Chang, ; Maheshwari, ; Maheshwari & Khan, ; Maheshwari et al, ; Minaei & Yuce, ; Minaei et al, ; Mohan et al, ; Mohan et al, ; Pushkar et al, ; Sangyaem et al, ; Supavarasuwat et al, ; Tangsrirat et al, ; Yuce, ; Yuce & Tez, ; Yucel & Yuce, ). Therefore, the multifunction filters based on current‐mode approach (Channumsin et al, ; Chaturvedi et al, ; Chaturvedi & Maheshwari, ; Herencsar et al, ; Kumar & Chaturvedi, ; Maheshwari, ; Maheshwari et al, ; Maheshwari & Khan, ; Minaei et al, ; Minaei & Yuce, ; Mohan et al, ; Pushkar et al, ; Sangyaem et al, ; Supavarasuwat et al, ; Tangsrirat et al, ; Yuce, ; Yuce & Tez, ; Yucel & Yuce, ) are found more advantageous over multifunction filters based on voltage‐mode approach (Minaei et al, ; Tsukutani et al, ; Tsukutani et al, ). The study of circuits of voltage input voltage output‐type multifunction filters (Channumsin et al, ; Herencsar et al, ; Maheshwari, ; Maheshwari & Khan, ; Maheshwari et al, ; Minaei & Yuce, ; Minaei et al, ; Minaei et al, ; Mohan et al, ; Pushkar e...…”

“…On the other hand, the current-mode approach has been widely used in the last decade to design different types of analog circuits due to its several advantages over voltage-mode approach. Current conveyor and its variants are the basic building blocks which are commonly used for circuit design using current-mode approach (Channumsin et al, 2012;Chaturvedi & Maheshwari, 2011;Chaturvedi et al, 2018;Chaturvedi et al, 2019;El-Adawy et al, 2000;Herencsar et al, 2013;Kumar & Chaturvedi, 2017a;Kumar & Chaturvedi, 2017b;Kumar, Chaturvedi, Mohan, & Maheshwari, 2017;Lee & Chang, 2009;Maheshwari, 2008;Maheshwari & Khan, 2005;Maheshwari et al, 2010;Minaei & Yuce, 2009;Minaei et al, 2003;Mohan et al, 2014;Mohan et al, 2016;Pushkar et al, 2014;Sangyaem et al, 2017;Supavarasuwat et al, 2018;Tangsrirat et al, 2013;Yuce, 2017;Yuce & Tez, 2018;Yucel & Yuce, 2017). Therefore, the multifunction filters based on current-mode approach (Channumsin et al, 2012;Chaturvedi et al, 2018;Chaturvedi & Maheshwari, 2011;Herencsar et al, 2013;Maheshwari, 2008;Maheshwari et al, 2010;Maheshwari & Khan, 2005;Minaei et al, 2006;Minaei & Yuce, 2009;Mohan et al, 2014;Pushkar et al, 2014;Sangyaem et al, 2017;Supavarasuwat et al, 2018;…”