This article proposed a simple self cascode RGC amplifier configuration to increase the gain and bandwidth. The cascode amplifier eliminates the miller capacitance between input and output and facilitates high gain, high input and output impedance with high bandwidth. However, the cascode amplifier requires relatively high supply voltage for proper operation and it decreases the output voltage ...

A fully differential self-biased inverter-based folded cascode amplifier which uses the feedforward-regulated cascode principle is presented. A detailed small-signal analysis covering both the differential-mode and the common-mode paths of the amplifier is provided. Based on these theoretical results a design is given and transistor level simulations validate the theoretical study and also demo...

Different cascode circuits are investigated with regard to their suitability for low-voltage and low-current circuits. A generalized circuit representation is introduced and different cascode circuits are discussed with respect to their small-signal parameters as well as their associated dynamic output ranges. The output voltage ranges for saturation operation of the different cascode circuits ...

Various cascode circuits are investigated with regard to their suitability for switched current copier applications. Generalized circuit representations are introduced and different cascode circuits are compared and discussed. A method called “reference voltage and current tracking” for dynamic output range improvement is proposed. An improved regulated cascode circuit with extended dynamic out...

|A simple cascode circuit with the gate voltage of the cascode transistor being controlled by a feedback ampli er and thus named `regulated cascode' is presented. In comparison to the standard cascode circuit the minimum output voltage is lower by about 30 to 60% while the output conductance and the feedback capacitance are lower by about 100 times. An analytical large-signal, small-signal, and...

A self-cascading CMOS circuit for operation in weak inversion is presented. The self-cascoding MOSFET circuit has been shown to exhibit greater than twentY:'fold increase in the output resistance, without paying virtually any penalty in real estate and power consumption. The circuit has been used to increase the gain in the front stage of operational amplifiers, and to obtain improved performan...

A current mirror (CM) based on self cascode MOSFETs low voltage analog and mixed mode structures has been proposed. The proposed CM has high output impedance and can operate at 0.5 V. P-Spice simulations confirm the high performance of this CM with a bandwidth of 6.0 GHz at input current of 100 μA. Keywords—Current Mirrors, Composite Cascode Structure, Current Source/Sink.

In this research paper, Simulation and Analysis of innovative folded cascode Operational Amplifier based on carbon nanotubes (CNT) has been performed using 45 nm technology. DC voltage gain, average power, bandwidth and output resistance have been computed. CNT based folded cascode Op Amp results in high performance with the increase of CNTs. For example, the increase in DC gain is 41.48% in pC...

A technique is proposed for the design of a modified CMOS regulated cascode having an output impedance significantly greater than that of a conventional regulated cascode. Simulation results for an illustrative design, operating at 10μA from a 1V supply, show an increase in output resistance from 636MΩ and output bandwidth of 55kHz for a conventional circuit to 6.68GΩ and 389kHz, respectively, ...

An s-domain analysis of the full dynamics of the pole-zero pair (frequency doublet) associated with the broadly used CMOS active-cascode gain-enhancement technique is presented. Quantitative results show that three scenarios can arise for the settling behavior of a closed-loop active-cascode operational amplifier depending on the relative locations of the unity-gain frequencies of the auxiliary...