Title :
Common-mode rejection ratio redefined
Author_Institution :
Dept. of Electr. Eng., Hawaii Univ., Honolulu, HI, USA
fDate :
6/1/1997 12:00:00 AM
Abstract :
Redefining the common-mode rejection ratio (CMRR), a set of equations is derived for the common-mode gain and the CMRR of differential amplifiers. The results, which are consistent with practice and simulation, show that an amplifier´s CMR may exceed the CMR of the active device(s) by intentional unbalancing of the circuit
Keywords :
circuit feedback; differential amplifiers; feedback amplifiers; network analysis; simulation; common-mode gain; common-mode rejection ratio; differential amplifiers; equations; simulation; two stage differential amplifier; unbalancing; Circuit simulation; Difference equations; Differential amplifiers; Differential equations; Feedback circuits; Frequency; Operational amplifiers; Resistors; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
