Circuit and method for correcting thermal deviations of one or more output signals from an amplifier with early effect compensation

摘要

A circuit and method for correcting thermal deviations of one or more output signals from an amplifier utilizes Early effect-compensated correcting signals to reduce the thermal deviations of the output signals. The correcting signals are derived from temperature-dependent signals, which correspond to the thermal deviations of the output signal. The temperature-dependent signals, however, include errors due to Early effect. The Early effect errors are compensated in the correcting signals by introducing reverse Early effect errors into the correcting signals. Consequently, the compensating signals can be used to more effectively correct the thermal deviations of the output signals.