Patent ID: 6486699
Filing Date: 2002-11-26
Classification: H03K

Abstract:
A compensation circuit which can be connected upstream of a driver circuit,having a signal reference source, which generates from an input signal at least one reference signal, the reference signal having a parameter-dependence, having a signal-comparison source which generates from the input signal at least one comparison signal, the comparison signal having an inverse parameter-dependence to that of the reference signal, having a comparison unit to which the reference signal and the comparison signal can be fed and which generates at least one digital output signal from a compression of the reference signal and of the comparison signal, wherein the signal reference source generates a reference current as a reference signal, and the signal-comparison source generates a comparison current as a comparison signal, wherein the signal reference source and the signal-comparison source each generate a plurality of equally large reference signals or comparison signals which can each be fed into a corresponding number of comparators of the comparison unit makes available therefrom a number of digital output signals corresponding to the number of comparators.