Several possible implementations of variable-gain current conveyors are proposed. They can be designed with two opamps and current mirrors and exhibit constant bandwidth property. Their configuration as differential-output current amplifiers is straightforward.

This paper shows how the application of a CMOS ternary logic is useful in the realisation of Delay Insensitive (01) asynchronous circuits. It is shown that fully DI asynchronous circuits are obtained with a ternary handshake protocol which employs the third logic level as idle state of the asynchronous interface. The advantages obtained are a dramatic reduction of the communication requirement ...

This paper presents a low-power linear variable gain amplifier (VGA). This VGA gains its low-power linear properties with the help of the local feedback auxiliary (LFA) amplifier. The core of this LFA amplifier is based on flipped voltage follower (FVF) circuit. This VGA provides the flexibility to tune its gain with dual tuning voltages. Gain range of 15 dB to 16 dB with maximum bandwidth of 2...

A radical alternative based on an asynchronous design methodology is proposed for the design of future system level integration devices. An asynchronous multithreaded processor core is presented along with glimpses into some design issues for a multithreaded Java byte-code compiler. Such a platform expoits concurrency at diierent levels: between coarse-grained threads running on a multi-node pr...

Recent findings suggest that, relative to negative feedback, positive feedback counteracts conflict processing and subsequent attentional adaptation. Here we hypothesize that this interaction may direct adjustments in perception and action via the anterior cingulate cortex (ACC). We recorded EEG while participants performed an arrow flanker task with monetary gain or loss as arbitrary reward fe...