Patent ID: 7880654

Claim:
A sigma-delta modulator comprising: an input node for receiving an input signal; a quantizer configured to convert a first analog signal to a digital value; a main feedback arrangement coupled to the quantizer, the main feedback arrangement being configured to: delay the digital value by a first delay period to obtain a first delayed value; and generate a main feedback signal based on the first delayed value; a compensation feedback arrangement coupled to the quantizer, the compensation feedback arrangement being configured to: delay the digital value by a second delay period to obtain a second delayed value, wherein the second delay period is not equal to the first delay period and the second delay period is not influenced by the first delay period; and generate a compensation feedback signal based on the second delayed value; and a forward signal arrangement coupled between the input node and the quantizer, the forward signal arrangement being coupled to the main feedback arrangement and the compensation feedback arrangement, wherein: the forward signal arrangement produces the first analog signal based on the input signal, the main feedback signal, and the compensation feedback signal; and the compensation feedback signal compensates for the first delay period.