Integrated circuits multilevel quantizers for sigma-delta modulator and devices with its application (optional)

摘要

1. The integrated circuit of multilevel quantizer for a sigma-delta modulator and its application device comprising a voltage divider at the multisection 2N level feedback to the key positions N, a switching circuit and a feedback key decoder, characterized in that it comprises two parallel-connected comparators, two switching key on the N positions each connecting reference inputs of comparators with adjacent even-divider outputs and a control circuit switching the position of the keys and state dekodera.2. The integrated circuit sigma delta modulator, characterized in that it uses a multilevel quantiser under clause 1.3. The integrated circuit analog-to-digital converter, characterized in that it uses the sigma-delta modulator of claim 2.