Title :
On the measurement of common-mode rejection ratio
Author :
Zhou, Jian ; Liu, Jin
Author_Institution :
Texas Instrum. Inc., Richardson, TX, USA
Abstract :
In this brief, several commonly used measurement configurations for common-mode rejection ratio (CMRR) are analyzed and compared with the definition; their advantages and limitations are also discussed. Finally, an improved measurement setup is proposed to characterize CMRR more accurately according to its definition over wider frequency range.
Keywords :
operational amplifiers; voltage measurement; CMRR; common-mode rejection ratio; frequency-domain analysis; measurement configurations; operational amplifiers; Circuit simulation; Differential amplifiers; Frequency domain analysis; Frequency measurement; Gain measurement; Impedance; Measurement techniques; Operational amplifiers; Performance gain; Voltage measurement; Amplifiers; common-mode rejection ratio (CMRR); frequency-domain analysis; measurement;
Journal_Title :
Circuits and Systems II: Express Briefs, IEEE Transactions on
DOI :
10.1109/TCSII.2004.838332
