Title :
A novel differential differentiator
Author :
Al-Alaoui, Mohamad Adnan
Author_Institution :
Dept. of Electr. Eng., American Univ. of Beirut, Lebanon
fDate :
10/1/1991 12:00:00 AM
Abstract :
A novel differentiator with differential inputs is described. It is characterized by a resistive input impedance and a single RC network which controls the differentiation action of the circuit. The differentiation of high-frequency noise is avoided by a transition to amplifier and integrator action at high frequencies. The common mode rejection ratio (CMRR) is more controllable in the new differentiator than in the traditional differential differentiator. Simulation and experimental results support the theoretical derivation
Keywords :
active networks; differentiating circuits; signal processing equipment; CMRR; amplifier; common mode rejection ratio; differential differentiator; differential inputs; high-frequency noise; integrator; measurement; operational amplifiers; resistive input impedance; single RC network; Capacitance measurement; Circuit noise; Circuit simulation; Differential amplifiers; Frequency; Impedance; Operational amplifiers; Q factor; Radio control; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
