Common-mode feedback circuit with differential-difference amplifier

A common-mode feedback circuit suitable for fully balanced analog MOS structure realization is discussed. A novel scheme of differential-difference amplifier, the concept of which can be employed in CMFB system, is proposed. A transconductance amplifier is shown as an application example. SPICE simulation is used to verify the theory. >

[1]  I. Sandberg,et al.  Existence and evaluation of almost periodic steady-state responses of mildly nonlinear systems , 1984 .

[2]  Z. Czarnul.  Performance comparison of integrated continuous-time integrators containing matched MOS transistors , 1986 .

[3]  A. R. Bergen,et al.  Justification of the Describing Function Method , 1971 .

[4]  T. Kwan,et al.  An adaptive analog continuous-time CMOS biquadratic filter , 1991 .

[5]  W. Guggenbuhl,et al.  A versatile building block: the CMOS differential difference amplifier , 1987 .

[6]  J. Silva-Martinez,et al.  Design techniques for high-performance full-CMOS OTA-RC continuous-time filters , 1992, IEEE Journal of Solid-State Circuits.

[7]  William Martin Snelgrove,et al.  A balanced 0.9- mu m CMOS transconductance-C filter tunable over the VHF range , 1992 .

[8]  R. Schaumann,et al.  Improved common-mode feedback circuit suitable for operational transconductance amplifiers with tuning , 1991 .

[9]  Z. Czarnul,et al.  MOS tunable transconductor , 1986 .

[10]  I. Sandberg.  On Truncation Techniques in the Approximate Analysis of Periodically Time-Varying Nonlinear Networks , 1964 .

[11]  A. Kaiser,et al.  CMOS triode transconductor with high dynamic range , 1990 .

[12]  Francois Krummenacher,et al.  A 4-MHz CMOS Continuous-Time Filter with On-Chip Automatic Tuning , 1987, ESSCIRC '87: 13th European Solid-State Circuits Conference.

[13]  P. R. Gray,et al.  High-frequency CMOS continuous-time filters , 1984 .

[14]  Yannis Tsividis,et al.  Design considerations for high-frequency continuous-time filters and implementation of an antialiasing filter for digital video , 1990 .

[15]  I. Sandberg.  Some results on the theory of physical systems governed by nonlinear functional equations , 1965 .