Patent ID: 7230559

Claim:
A quantizer having a plurality of N quantization thresholds for quantization of an analogue quantizer input signal for a sigma-delta analogue/digital converter, comprising an input network, which receives the quantizer input signal and generates N different drive signals, which are associated with the quantization thresholds, as a function of the quantizer input signal, in which case, for the drive signals, a value of the respective drive signal which is greater, or alternatively less, than a comparison value which is identical for all drive signals indicates that the quantizer input signal has exceeded the respectively associated quantization threshold, a plurality of N comparators each having one comparator input, and which, on the output side, generate a quantized signal which corresponds to the quantizer input signal, and a switching network, which receives the N drive signals and associates them with the N comparator inputs, in which case the association can be controlled as a function of a control signal.