Multiple output second-generation current conveyor utilizing high frequency output stage
نویسنده
چکیده
In this paper a multiple output second-generation current conveyor (MOCCII) is presented. The main advantage of the proposed general circuit architecture over a typical structure, well known in the literature, is the use of a high passband multiple output current amplifier block instead of cascaded current mirrors. It gives similar frequency responses for all the outputs of the current conveyor and also maintains simplicity of the whole circuit. As an example, a detailed design of the MOCCII in 350nm CMOS process is presented. The conveyor consumes only 135A from 3.3V power supply and exhibits over 120MHz of 3dB passbands for both positive and negative outputs. Streszczenie. W artykule przedstawiono koncepcję układową wielowyjściowego konwejora prądowego drugiej generacji (ang. MOCCII). Jej główną zaletą w stosunku do dotychczas prezentowanych w literaturze jest zastosowanie szerokopasmowego wielowyjściowego wzmacniacza prądowego w miejsce kaskadowych luster prądowych. Zastosowanie tego wzmacniacza daje dobre i podobne właściwości częstotliwościowe wszystkich wyjść konwejora zachowując równocześnie prostotę układu. Jako przykład aplikacyjny przedstawiono szczegółowy projekt układu MOCCII w technologii AMS CMOS 350 nm. Finalny konwejor zużywa tylko 135 A prądu ze źródła zasilania 3,3 V i ma pasmo 3 dB o częstotliwościach ponad 120 MHz zarówno dla wyjść dodatnich jak i ujemnych. (Wielowyjściowy konwejor prądowy drugiej generacji z wykorzystaniem szerokopasmowego stopnia wyjściowego).
منابع مشابه
New High Performance Second Generation CMOS Current Conveyor
A new high performance second-generation CMOS current conveyor architecture is presented. It is built using a differential flipped voltage follower as its input buffer stage and a cascode current mirror as output stage. It is characterized by very low output impedance. It provides gain independent high bandwidth when used to implement a programmable gain voltage amplifier. Simulation and experi...
متن کاملHigh Frequency Controlled Universal Current Mode Filter using second generation conveyor CCII
A new universal current mode filter circuit composed by three multi-output second generation current conveyor circuits (MOCCII), two controlled active resistances and two passive capacitors is presented. This filter can realize all the five standard filter functions, namely low pass, band pass, high pass, notch and all pass, without changing the circuit topology. TSPICE simulation using 0.18 μm...
متن کاملMulti-Output CCII for Realization of Current Conveyors
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...
متن کاملNew 1.5-V CMOS second generation current conveyor based on wide range transconductor
This paper presents a novel CMOS low-voltage and low-power positive second-generation current conveyor (CCII+ ). The proposed CCII+ uses two n-channel differential pairs instead of the complementary differential pairs; i.e. (n-channel and p-channel), to realize the input stage. This solution allows almost a rail-to-rail input and output operation; also it reduces the number of current mirrors n...
متن کاملNew low-voltage class AB current conveyor II for analog applications
Current conveyors are unity gain active elements exhibiting high linearity, wide dynamic range and high frequency performance than their voltage mode counterparts. The new current conveyor operating at low-voltage supplies high input impedance and low output impedance and consumes less power. In this study, a new low-voltage class AB second generation current conveyor (AB CCII) is presented whi...
متن کامل