We present an optimization of the voltage scaling algorithm in low power audio class G amplifier for headphones application to allow longer playback time. The optimization approach minimizes the voltage difference between the internal audio amplifier power supply and its output signal over a large range of operating conditions. The modeling is based on a behavioral model enabling accurate and r...

Sense amplifiers are one of the very important peripheral components of CMOS memories. In a Hybrid Sense amplifier both current and voltage sensing techniques are used which makes it a better selection than a conventional current or voltage sense amplifiers. The hybrid sense amplifier works in three phases-Offset cancellation (200ps), Access phase (500ps) and Evaluation phase. The offset cancel...

In this paper a high speed hybrid current mode sense amplifier is presented. Sense amplifier is the most important component of SRAM cell used to sense stored data. Sense amplifiers are used to read the contents of SRAM cells. Sense amplifiers perform amplification, delay reduction and power reduction. Earlier voltage mode sense amplifiers are used to sense the data from bitlines. But with incr...

Current Feedback Amplifiers (CFA) are discussed in this report. Current Feedback Amplifiers employ the current mode of signal processing to achieve higher gain-bandwidth product and greater slew rates than those of a Voltage Feedback Amplifier (VFA). The Current Feedback Amplifier topology has an inherent advantage over that of the the Voltage Feedback Amplifier, wherein the amplifier gain can ...

A new design of current mode instrumentation amplifier (CMIA) with tunable gain and low voltage operation capability is proposed in this paper, which suitable for biomedical signals processing, especially electrocardiogram (ECG). It consists a differencing transconductance (CDTA) dual z copy CDTA (DZC-CDTA). The the CMIA controlled by MOS-based resistor. main advantage its high that can be tune...

In this paper, a high performance current-mode instrumentation amplifier has been proposed for low noise, low power, high CMRR and adjustable gain with an external resistor for various biomedical signal processing. The portable biomedical instrumentation has become an important part of diagnostic and treatment instrumentation, including telemedicine applications. The low voltage and low-power d...

Abstract: The present work deals with voltage differencing current conveyor and its application in analog circuit design. There have been several major developments in the area of analog circuits which have taken place during the past four decades. There is a bulk of material available about the various active blocks developed past Current Conveyors.Among various modern active building blocks, ...

This paper presents a modified current differencing transconductance amplifier (MCDTA) and a MCDTA based quadrature oscillator. The oscillator is current-mode and provides current output from high output impedance terminals. The circuit uses only one MCDTA and two grounded capacitors, and is easy to be integrated. Its oscillation frequency can be tuned electronically by tuning bias currents of ...

The Inertially Stabilized Rifle is a new stabilized rifle system that can eliminate the disturbances induced by the shooter. Recurve actuator is used in this system to provide the precise movement of the rifle barrel. In such a portable device, only low voltage electrical sources are available yet the piezoelectric actuator needs high voltage to drive the actuator. The actuators consume little ...