In this paper, we propose the idea of using transimpedance amplifiers, in lieu operational amplifiers (OAs) or transconductance (OTAs) to design capacitively coupled AC amplifiers. The is demonstrated with a current feedback amplifier (CFOA) as an active element, which actually architecture consisting voltage buffers and copiers (mirrors). This last characteristic further exploited make corner ...

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 ...

Abstract—A simple design for realizing a Bode-type amplitude equalizer is proposed. It allows any arbitrary, but RC realizable, shaping function and whole range. The Bode-type amplitude equalizer using current feedback amplifier is derived which can operate satisfactory at much higher frequencies compared to the operational amplifier based ones. Simulation results are in good agreement with the...

ETRI Journal, Volume 29, Number 2, April 2007 A novel low-voltage CMOS current feedback operational amplifier (CFOA) is presented. This realization nearly allows rail-to-rail input/output operations. Also, it provides high driving current capabilities. The CFOA operates at supply voltages of ±0.75 V with a total standby current of 304 μA. The circuit exhibits a bandwidth better than 120 MHz and...

This paper describes a simple, inexpensive transimpedance amplifier (TIA) suitable to convert the fast current pulses delivered by photomultiplier tube of night airglow photometer into the corresponding voltage. Design criteria for the transimpedance amplifier are carefully selected to include low input bias current, offset voltage and noise. The operation of the transimpedance amplifier and th...

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.

This paper presents a high CMRR and wideband current feedback Instrumentation Amplifier (IA). The proposed IA architecture consists of Fully Balanced Differential Difference Amplifier (FBDDA) and Differential Difference Amplifier (DDA) based on 2 generation current conveyor (CCII) with a buffer. From the simulation results evaluated by HSPICE, the proposed IA exhibits average CMRR was 109.3 dB ...

— A low power wideband noise amplifier (LNA) for 1GHz to 10GHz wireless has presented for wireless application in this dissertation work. Low power wideband noise amplifier is design by using resistive shunt feedback, current reuse, gain flatting techniques, and inductive feedback technique. The high mobility electron transistors are used to improve the Noise Figure (NF) and scattering paramete...

The rapid growth of the hybrid electric vehicles (HEVs) has been driving the demand of high temperature automotive electronics target for the engine compartment, power train, and brakes where the ambient temperature normally exceeds 150°C. An operational transconductance amplifier (OTA) is an essential building block of various analog circuits such as data converters, instrumentation systems, l...