The recently proposed BSIM6 bulk MOSFET compact model is set to replace the hitherto widely used BSIM3 and BSIM4 models as the de-facto industrial standard. Unlike its predecessors which were threshold voltage based, the BSIM6 core is charge based and thus physically continuous at all levels of inversion from linear operation to saturation. Hence, it lends itself conveniently for the use of a d...

We consider the complexity of computing Boolean functions by analog circuits of bounded fan-in, i.e., by circuits of gates computing real-valued functions, either exactly or as sign-representation. Sharp upper bounds are obtained for the complexity of the most difficult n-variable function over certain bases (sign-representation by arithmetic circuits and exact computation by piecewise linear c...

This dissertation describes a methodology for solving convex constraint problems using analog circuits. It demonstrates how this methodology can be used to design circuits that solve function-fitting problems through iterated gradient descent. In particular, it shows how to build a small circuit that can model a nonlinearity by observation, and predistort to compensate for this nonlinearity. Th...

A detailed introduction to published analogue circuit design techniques using Si and Si/SiGe FET devices for very low power applications is presented in this review. The topics discussed include subthreshold operation in FET devices, micro-currentmirrors and cascode techniques, voltage level-shifting and class-AB operation, the bulk-drive approach, the floating-gate method, micropower transcond...

An heuristic method to generate the topology of analog circuits at the most abstract level of design, is introduced. The generation approach is divided into two steps: the small-signal and bias-circuitry levels of design. The f irst step is focused on coupling four-nullators and four-norators bridges. The second step is focused on biasing nullator-norator pairs. The nullors in the generated cir...

In low voltage low power CMOS systems both the high input offset and noise voltages of MOSFETs and also the moderate gain of op amps limit the accuracy of analog circuits. In this paper we present a new high-accuracy instrumentation amplifier; this circuit topology is the first ever reported "non-autozero" instrumentation amplifier which allows to compensate, beside the input offset and noise v...

Analog circuits provide the critical interfaces between the digital world inside today’s integrated circuits and the physical world. Semiconductor technology scaling driven by ’Moore’s Law’ has resulted in a phenomenal scaling of the performance of digital processors and memory. Continuing design innovations have enabled the scaling of analog interfaces onto scaled CMOS technologies, even thoug...

We present a novel technique to automatically calculate an initial sizing of analog circuits that conforms to good design practice. The method is purely (DC) simulation-based and does not need symbolic design equations or user design knowledge. It identifies the space of feasible design parameters based on implicit specifications, which arise from the circuit topology. A sizing centered within ...

A new parametric approach for detecting defects in analog integrated circuits using the feed-forward neural network trained by back-propagation method is presented. The neural network is used for classification of tested circuits by sensing differences observed in dynamic supply current of fault-free and faulty circuits. The identification is performed in time and frequency domain, followed by ...

The advent of differential voltage current conveyor(DVCC) has opened up new avenues in analog circuit design. In the present work, a DVCC has been employed to designcurrent-mode first-order continuous-time analog filters. Parameter tunability is achieved by the use of a two-MOSFET electronicresistor which exhibits variation in resistance in accordancewith a control voltage. The proposed circuit...