Noise eeects such as power supply and crosstalk noise can signiicantly impact the performance of deep submicron designs. Existing timing analysis tecniques cannot capture the eeects of noise on the signal/cell delays. This is because these delay eeects are highly input pattern dependent. Therefore, the predicted circuit performance might not reeect the worst-case circuit delay. In this paper, w...

Characteristics of various CMOS and NMOS circuit techniques are described, along with the shortcomings of each. Then a new circuit ty#e, the CMOS domino circuit, will be described. This involves tbe connection of dynamic CMOS gates in such a way that a single clock edge can be used to turn on all gates in the circuit at once. As a result, complex clocking schemes are not needed and the full inh...

In this paper, we propose a 4-transistor active pixel sensor(APS) with a novel correlated double sampling(CDS) circuit for the purpose of extending dynamic range. Dual sampling techniques can overcome low-sensitivity and temporal disparity problems at low illumination. To accomplish this, two images are obtained at the same time using different sensitivities. The novel CDS circuit proposed in t...

This work presents a dynamic gate bias circuit for bias control to maximize power added efficiency based on the class-A two-stage power amplifier. The proposed circuits are composed of two NMOS transistors, a capacitor for coupling RF input signal, and four resistors for bias. The circuit is implemented by means of the bias control at the two-stage power amplifier to improve the overall power a...

A 0.4-V opamp-less Σ∆ modulator for biomedical applications is presented. The continuous-time (CT) 2nd order Σ∆ modulator is realized using a passive filter topology. In order to obtain a small area, all capacitors are realized using parallel compensated depletion-mode MOSCAPs. To maximize the performance, genetic algorithms (GAs) are used to optimize the circuit for smaller area and higher sig...

An original low-voltage current-mode high-accuracy function synthesizer circuit will be presented, allowing to implement a multitude of continuous mathematical functions. The dynamic range is strongly extended as a result of the superior-order approximation of the implemented functions. The current-mode operation and the independence of the circuit performances on technological parameters are r...