In this work, we present a new proposal for the second-order Adaptive Sigma Delta Modulation (ASDM). The new proposed Adaptation scheme is based on using Operational Transconductance Amplifier (OTAs) as an Integrator and as an Amplifier to adapt the quantizer stepsize to control the voltage gain by feedback the quantizer output through adaptation scheme. The stepsize is changing up or down by t...

This paper discusses the design of low-voltage low-power fully-integratable automatic gain controls. Four different AGCs are presented, all consisting of three elementary building blocks: a controlled amplifier, a comparator and a voltage follower. Their design is treated separately. As an example, the final section describes an automatic gain control for hearing instruments. INTRODUCTION Low-v...

A CMOS implementation of a high-gain current mode operational amplifier (opamp) with a single-ended input and a differential output is described. This configuration is the current mode counterpart of the traditional voltage mode opamp. In order to exploit the inherent potential for high speed, low voltage operation normally associated with current mode analog signal processing, the opamp has be...

We designed and implemented a single-switch step-up DC-DC converter based on cascaded boost Luo converters. The proposed demonstrated quadratic voltage gain high efficiency, which makes it suitable for renewable energy applications, where ratio is desired without imposing number of bulky items or employing duty cycle the active switches. This benefits from continuity input current waveform, equ...

Abstract: This paper proposed a new type of converter called Single Phase Switched Inductor Z-source Matrix Converter (SLMC). It is an ac-to-ac converter with diode bridge bidirectional switch cell. The limitations of existing matrix converter like voltage regulation and quality output issues are overcome in the proposed SLMC by adding the switched inductance. The simulation is performed for di...

An avalanche photodiode (APD) based on an InGaAs/InGaAsP/InP structure containing separated absorption, charge and multiplication layers (SACM) was designed, fabricated and tested. The InGaAsP charge layer at the heterointerface between the InGaAs absorption and InP multiplication region allows optimization of the electric field distribution and suppression of the carrier capture at the heteroi...

A current amplifier is used to realize a voltage amplifier having an improved high frequency response and slew rate capability. It is shown that the closed loop bandwidth is independent of the closed loop voltage gain. The design and application of a unity gain and a high gain current amplifier to voltage signal processing circuits are given. The results demonstrate an efficient use of the inhe...

In this study the effects of proton irradiation and annealing on Low Gain Avalanche Detectors (LGADs) are investigated. Two LGADs one p-in-n diode, produced by CNM (Centre Nacional de Microelectrònica 2018), were irradiated with 24GeV?c-protons to a fluence 1×1014neq?cm2 annealed at 60°C for up 5000min. The sensors have an active area 3×3mm2 thickness 277?m. Current– capacitance–voltage measure...

A multi-output second generation current conveyor (MOCCII), that can be used to realized first, second and third generations current conveyors, is proposed. The MOCCII consists of a CMOS differential stage for the voltage input, push-pull stage and the improved cascode current mirrors for the current output. Feedback techniques are proposed in order to provide a voltage gain of 0.991, a current...

Neuronal gain control is important for processing information in the brain. Shunting inhibition is not thought to control gain since it shifts input-output relationships during tonic excitation rather than changing their slope. Here we show that tonic inhibition reduces the gain and shifts the offset of cerebellar granule cell input-output relationships during frequency-dependent excitation wit...