A very fast recovery voltage regulator for large capacitive loads is presented. A feedback cascode technique is used to achieve high recovery speed when a previously discharged capacitance is connected to the regulator output. The design has been optimized for a word-line read voltage regulator for a 4-level (2-bit/cell) 32-Mcell Flash memory (64 Mbits). Computer simulations showed that recover...

This paper presents a new force-sensitive surface designed for playing music. A prototype system has been implemented using a passive capacitive sensor, a commodity multichannel audio interface, and decoding software running on a laptop computer. This setup has been a successful, lowcost route to a number of experiments in intimate musical control.

This paper presents a Sub-mW differential Common-Gate Low Noise Amplifier (CGLNA) for ZigBee standard. The circuit takes the advantage of shunt feedback and Dual Capacitive Cross Coupling (DCCC) to reduce power consumption and the bandwidth extension capacitors to support 2.4 GHz ISM band. An amplifier employing these techniques has been designed and simulated in 0.18 mm TSMC CMOS technology. T...

Within the Clemps project (Closed-Loop Embedded MEMS-based Precision Stage) we investigate the fabrication of MEMS-based stages with up to three degrees of freedom. These stages are to be used in, for example, transmission electron microscopy applications and probe based data storage. The project is a close cooperation with the MA group of IMPACT. The desired stages are characterized by a numbe...

A design strategy for minimizing a feedback amplifier’s step-response settling time is introduced. Central to this approach is the clear identification of the independent design parameters characterizing the amplifier and the introduction of a figure of merit for assessing the settling performance of an amplifier that is independent of power, supply voltage and capacitive loading. With this app...

In this paper, the bandwidth enhancement of TIA amplifier can be design for achieving the high information capacity which is used in optical fiber communication for existing transimpedance amplifiers in CMOS technology. The proposed TIA amplifier also trade-offs between gain, bandwidth, noise, and group delay variation with introduce on differential architecture along an RGC network as input an...

This paper reports a monolithic, force-feedback MEMS (microelectomechanical systems) microgripper and its application to micro-scale compression testing of swollen hydrogel microcapsules at wet state during manipulation. The single-chip microgripper integrates an electrothermal microactuator and two capacitive force sensors, one for contact detection (force resolution: 38.5 nN) and the other fo...

A full custom design of a three-stage amplifier is described in this paper. A feedback transconductance stage and a feedforward stage combined with two Miller compensation capacitors are used for frequency compensation. The circuit is designed in 0.18μm CMOS process with a 1.8V supply voltage. When driving a 150pF capacitive load, the amplifier achieves over 100dB dc gain, 2.24MHz gainbandwidth...

This paper describes a three-axis accelerometer implemented in a surface-micromachining technology with integrated CMOS. The accelerometer measures changes in a capacitive half-bridge to detect deflections of a proof mass, which result from acceleration input. The half-bridge is connected to a fully differential position-sense interface, the output of which is used for one-bit force feedback. B...