A voltage tunable CMOS differential active resistor and its application

We propose a novel CMOS differential voltage‐controlled equivalent active resistor based on a modified common‐source cross‐coupled pair. The equivalent resistance exhibited by the circuit can be tuned to be either positive or negative through the tail current, which is controlled by a bias voltage. The complete cell comprises four transistors, two resistors in addition to the bias voltage, and tail current source. Application to the design of oscillators is demonstrated by theoretical analysis, circuit simulations, and verified experimentally through measurements on prototypes implemented using discrete transistors.

[1]  Seyyed Javad Seyyed Mahdavi Chabok,et al.  Bandwidth and gain extension technique for CMOS distributed amplifiers using negative capacitance and resistance cell , 2017, Microelectron. J..

[2]  Sehmi Saad,et al.  An Enhanced Design of RF Integrated Differential Active Inductor , 2016 .

[3]  Kamil Vrba,et al.  Voltage-mode all-pass filter passive scheme based on floating negative resistor and grounded capacitor , 2015, 2015 European Conference on Circuit Theory and Design (ECCTD).

[4]  Behzad Razavi.  The Cross-Coupled Pair?Part III [A Circuit for All Seasons] , 2015, IEEE Solid-State Circuits Magazine.

[5]  Yannis Tsividis,et al.  Active LC filters on silicon , 2000 .

[6]  Ahmed S. Elwakil,et al.  Low-voltage relaxation oscillator , 2000 .

[7]  Leon O. Chua,et al.  Negative resistance devices: Part II , 1984 .

[8]  Domenico Zito,et al.  LC-active VCO for CMOS RF transceivers , 2010, Int. J. Circuit Theory Appl..

[9]  Ahmed S. Elwakil.  Design of non-balanced cross-coupled oscillators with no matching requirements , 2010, IET Circuits Devices Syst..

[10]  Rodrigo Eduardo Rottava,et al.  Automatic LC network tuner based on negative resistances , 2015 .

[11]  H. Asai,et al.  A Low Voltage Floating Resistor Circuit Having Both Positive and Negative Resistance Values , 2003, IEICE Trans. Fundam. Electron. Commun. Comput. Sci..

[12]  Qin Li,et al.  A novel complementary push-push frequency doubler with negative resistor conversion gain enhancement , 2017, IEICE Electron. Express.

[13]  Leon O. Chua,et al.  Negative resistance devices , 1983 .

[14]  Yo-Sheng Lin,et al.  A high gain and high linearity 94 GHz CMOS up-conversion mixer using negative resistance compensation and simplified modified derivative superposition techniques , 2016 .

[15]  Leon O. Chua,et al.  Bipolar - JFET - MOSFET negative resistance devices , 1985 .

[16]  P. Andreani,et al.  On the phase-noise and phase-error performances of multiphase LC CMOS VCOs , 2004, IEEE Journal of Solid-State Circuits.

[17]  Jean-Michel Redoute,et al.  Design of an integrated tunable differential negative resistance in UMC 0.18 μm , 2016, Microelectron. J..

[18]  Hideki Asai,et al.  A threshold voltage independent floating resistor circuit exhibiting both positive and negative resistance values , 2002, 2002 IEEE International Symposium on Circuits and Systems. Proceedings (Cat. No.02CH37353).

[19]  W. Surakampontorn.  CMOS floating voltage-controlled negative resistor , 1992 .