Title :
Class AB current-controlled resistor for high performance current-mode applications
Author :
Saaid, O. ; Fabre, A.
Author_Institution :
Lab. d´´Electron., Ecole Centrale de Paris, Chatenay-Malabry, France
fDate :
1/4/1996 12:00:00 AM
Abstract :
A class AB current-controlled grounded resistor based on a translinear loop implemented from bipolar transistors is described. Simulation results show that its value is tunable from 30 to ~100 kΩ with frequency responses up to 100 MHz and beyond. With 12.5 V supply voltages, the total harmonic distortion (THD) is <1% for peak to peak magnitudes of the input current >2.5 times the value of the control current. To illustrate its suitability, the results of a controlled amplifier, using this resistor and operating in current-mode, are also given
Keywords :
amplifiers; bipolar transistor circuits; frequency response; harmonic distortion; resistors; 12.5 V; 30 to 100 kohm; bipolar transistors; controlled amplifier; current-controlled resistor; frequency responses; grounded resistor; peak to peak magnitudes; total harmonic distortion; translinear loop;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19960023
