Bipolar low-power operational transresistance amplifier based on first generation current conveyor

Author

Barthélemy, Hervé ; Koudobine, Ivane ; Van Landeghem, Damien

Author_Institution

Lab. L2MP, Provence Univ., Marseille, France

Volume

48

Issue

6

fYear

2001

fDate

6/1/2001 12:00:00 AM

Firstpage

620

Lastpage

625

Abstract

A new class AB bipolar transresistance topology suitable for low power applications is presented. The circuit uses a positive first generation current conveyor (CCI+) as floating input stage. Simulation results, using nominal parameters for the bipolar transistors arrays HFA3127 and HFA3128 from Intersil Semiconductor, are presented to demonstrate the amplifier performance. Simulated performances give an 85 dB low frequency open-loop gain for a total power consumption of 352 μW at 3 V supply voltage. To demonstrate the principle, the operational amplifier is used to implement inverting and noninverting amplifiers, for which the analysis, simulations, and experimental results are given on a prototype using bipolar transistor arrays

Keywords

bipolar analogue integrated circuits; circuit stability; current conveyors; low-power electronics; operational amplifiers; 3 V; 352 muW; 85 dB; CCI+ floating input stage; HFA3127; HFA3128; Intersil Semiconductor; bipolar op amp; bipolar transistors arrays; class AB bipolar transresistance topology; inverting amplifiers; low-power operational amplifier; noninverting amplifiers; operational transresistance amplifier; positive first generation current conveyor; Analytical models; Bipolar transistors; Circuit simulation; Circuit topology; Energy consumption; Frequency; Operational amplifiers; Performance gain; Semiconductor optical amplifiers; Voltage;

fLanguage

English

Journal_Title

Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1057-7130

Type

jour

DOI

10.1109/82.943333

Filename

943333