Realization of First-Order Current-Mode filters with Low Number of MOS transistors

In this paper, a new current-mode (CM) circuit for realizing all of the first-order filter responses is suggested. The proposed configuration contains low number of components, only two NMOS transistors both operating in saturation region, two capacitors and two resistors. Major advantages of the presented circuit are low voltage, low noise and high linearity. The proposed filter circuit can simultaneously provide both inverting and non-inverting first-order low-pass, high-pass and all-pass filter responses. Computer simulation results achieved through SPICE tool and experimental results are given as examples to demonstrate performance and effectiveness of the proposed topology.

[1]  Shahram Minaei,et al.  Novel Voltage-Mode All-Pass Filter Based on Using DVCCs , 2010, Circuits Syst. Signal Process..

[2]  Brent Maundy,et al.  A novel CMOS first-order all-pass filter , 2002 .

[3]  Willy Sansen,et al.  analog design essentials , 2011 .

[4]  Christofer Toumazou,et al.  Analogue IC design : the current-mode approach , 1993 .

[5]  Ahmed S. Elwakil,et al.  Novel Approximate Square-Root Domain All-Pass Filter with Application to Multiphase Oscillators , 2006 .

[6]  R. ARSLANALP,et al.  Novel Resistorless First-Order Current-Mode Universal Filter Employing a Grounded Capacitor , 2011 .

[7]  Ahmad Ayatollahi,et al.  A new CMOS all-pass phase shifter for phased array systems , 2009, IEICE Electron. Express.

[8]  Erkan Yuce,et al.  Fully Controllable First Order Current Mode Universal Filter Composed of BJTs and a Grounded Capacitor , 2011 .

[9]  Shahram Minaei,et al.  Universal current-mode filters and parasitic impedance effects on the filter performances , 2008 .

[10]  Shahram Minaei,et al.  Derivation of low-power first-order low-pass, high-pass and all-pass filters , 2012 .

[11]  Willy Sansen.  Noise performance of elementary transistor stages , 2006 .

[12]  Gordon W. Roberts,et al.  All current-mode frequency selective circuits , 1989 .

[13]  Shahram Minaei,et al.  High Input Impedance NMOS-based Phase Shifter with Minimum Number of Passive Elements , 2012, Circuits Syst. Signal Process..

[14]  Worapong Tangsrirat,et al.  Digitally programmable current follower and its applications , 2009 .

[15]  Shahram Minaei,et al.  All Grounded Passive Elements Current-Mode All-Pass Filter , 2009, J. Circuits Syst. Comput..

[16]  Erkan Yüce.  A Novel CMOS-Based Voltage-Mode First-Order Phase Shifter Employing a Grounded Capacitor , 2010, Circuits Syst. Signal Process..

[17]  Shahram Minaei,et al.  A novel phase shifter using two NMOS transistors and passive elements , 2009 .

[18]  Erkan Yüce,et al.  A BJT technology-based current-mode tunable all-pass filter , 2009, Microelectron. J..

[19]  Ali Toker,et al.  Tunable allpass filter for low voltage operation , 2003 .

[20]  G. Pearce,et al.  Analogue IC Design: the Current Mode Approach , 1992 .

[21]  Sa'ad Muhammad Al-Shahrani.  CMOS wideband auto-tuning phase shifter circuit , 2007 .

[22]  Oguzhan Cicekoglu,et al.  All-pass filter for rich cascadability options easy IC implementation and tunability , 2007 .

[23]  Erkan Yuce.  A Novel CMOS-Based Voltage-Mode First-Order Phase Shifter Employing a Grounded Capacitor , 2010 .

[24]  Brett Wilson.  Tutorial review Trends in current conveyor and current-mode amplifier design , 1992 .