Analysis and Design of Active-r Oscillators Using the Current-feedback Op-amp

نویسندگان

  • Eva Vidal
  • Alberto Poveda
  • Eduard Alarcón
چکیده

A systematic approach has been employed to synthesize sinusoidal active-R oscillators using the current feedback op-amps. This approach is an extension to the method employed in [1] for the design of active-R oscillators using voltage op-amp. It is found that the active-R technique applied to current-feedback op-amps will be suitable for high frequency oscillator circuits with high output amplitude. A design procedure is developed providing sinusoidal oscillations up to 50 MHz with several volts of amplitude. The presented experimental results are in good agreement with the theoretical predictions.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Active Power Filter Design by a Novel Approach of Multi-Objective Optimization

This paper presents an innovative active power filter design method to simultaneously compensate the current harmonics and reactive power of a nonlinear load. The power filter integrates a passive power filter which is a RL low-pass filter placed in series with the load, and an active power filter which comprises an RL in series with an IGBT based voltage source converter. The filter is assumed...

متن کامل

A Multistage Low Supply Op-Amp in 0.25μm CMOS using Modified Active-Feedback Frequency- Compensation

This paper presents the design, analysis, and simulated results of a three stage low power op-amp in a 0.25μm CMOS process technology. The op-amp overcomes the problems of cascading stages under low supply voltage by using modified active-feedback frequency compensation. This op-amp operates over a common-mode voltage (Vcm)from 0 to 0.6V, a supply voltage (Vdd) of 1.5V ±5%, a temperature range ...

متن کامل

Feedback analysis of transimpedance operational amplifier circuits

The transimpedance or current feedback operational amplifier (CFB op-amp) is reviewed and compared to a conventional voltage mode op-amp using an analysis emphasizing the basic feedback characteristics of the circuit. With this approach the paradox of the constant bandwidth obtained from CFB op-amps is explained. It is demonstrated in a simple manner that the constant gain-bandwidth product of ...

متن کامل

Two Simple Analog Multiplier Based Linear VCOs Using a Single Current Feedback Op-Amp

Two simple voltage-controlled-oscillators (VCO) with linear tuning laws employing only a single current feedback operational amplifier (CFOA) in conjunction with two analog multipliers (AM) have been highlighted. The workability of the presented VCOs has been demonstrated by experimental results based upon AD844 type CFOAs and AD534 type AMs.

متن کامل

Low-Area/Low-Power CMOS Op-Amps Design Based on Total Optimality Index Using Reinforcement Learning Approach

This paper presents the application of reinforcement learning in automatic analog IC design. In this work, the Multi-Objective approach by Learning Automata is evaluated for accommodating required functionalities and performance specifications considering optimal minimizing of MOSFETs area and power consumption for two famous CMOS op-amps. The results show the ability of the proposed method to ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2000