Article

Power supply rejection ratio in operational transconductance amplifiers

Dept. of Electr. Eng., Katholieke Univ. Leuven, Heverlee
IEEE Transactions on Circuits and Systems 10/1990; DOI: 10.1109/31.57596
Source: IEEE Xplore

ABSTRACT The power supply rejection ratio (PSRR) of operational amplifiers
is analyzed. An analyzing technique based on cuts in subcircuits is
presented. The technique allows hand calculation of the PSRR of any
circuit. It is shown that the PSRR of the single-stage operational
amplifier (OTA) is one order of magnitude better than the commonly used
Miller OTA. The analyses are compared with hand calculations and SPICE
level-2 simulations on a realized improved Miller OTA structure

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