An original active resistor circuit will be presented, having the main advantages of an improved linearity, a small area consumption and a very good frequency response. An original technique for linearizing the ) (V I characteristic of the active resistor will be proposed, based on the utilization of a new linear differential amplifier and on a currentpass circuit. The linearization of the orig...

A detailed experimental characterization of the transition process of an initially Gaussian pulse to the asymptotic self-similar parabolic solution in optical fibre amplifiers operating in the normal dispersion regime is performed.

This paper describes a new widely tunable transconductor that can realize a channel-select filter having both of these characteristics. The transconductor includes a new negative source degeneration resistor. The paper also discusses the measured results obtained for the 6-order elliptic LPF adopting this new circuit. We propose a new negative source degeneration resistor (NSDR) transconductor ...

external amplifier was able to detect the sound waves from microphone on speaker and oscilloscope. The maximum amplitude of output speech signal of amplifier is 45 mV, and the maximum output of MEMS microphone is 1.125 µV.

In this paper the distortion components are defined for elementary transistor stages such as a single-transistor amplifier and a differential pair using bipolar transistors or MOST’s. Moreover, the influence of feedback is examined. Numerical examples are given for sake of illustration.

This paper motivates grid-based analog circuit optimizer. A continuous design space, which is explored by an analog circuit optimizer, can be transformed into a discrete space by leveraging the variability and uncertainty in modern IC technologies. It is noted that –in presence of process, temperature, and voltage (PVT) variation and individual device mismatches, one design has to be sufficient...

In many applications, offset of the OP-AMPs should be canceled to high accuracy be accomplished. In this work, an asymmetrical differential input circuit with active DC offset rejection circuit was implemented to minimize the systematic offset of the amplifier. The proposed OP-AMPs show that the systematic offset voltages is less than 80 μV. Keywords—component; formatting; style; styling; insert

A small-area low-power low-noise instrumentation amplifier (IA) is desired in arrayed sensor devices that are used for high-spatial-resolution biomedical and environment monitoring systems. This paper presents a 0.06mm chopper-stabilized current-feedback IA with 13.5nV/√Hz input-referred noise and less than 3.5μV offset voltage. For significantly reducing the ripple due to chopping, the propose...

This paper is present sinusoidal frequency doublers circuit with low voltage + 1.5 volt CMOS inverter. Main structure of circuit has three parts that is CMOS inverter circuit, differential amplifier circuit, and square root circuit. This circuit has designed to receive input voltage and give output voltage use few MOS transistor, easy to understand, non complex of circuit, high precision, low e...

A new figure of merit under area constraints is proposed for designing optimum performance differential input stage of a two-stage compensated operational amplifier. Figure of Merit, FoM2 is defined that includes the three small signal performance parameters, namely input-referred noise, unitygain bandwidth and differential dc gain. Expressions for these parameters in terms of area assigned, ha...