Taiwan Semiconductor Manufacturing Comp. Ltd.

Tai-cheng Kee

Jaw-Juinn Horng

Bei-Shing Lien

Pang-yen Chin

A continuous time delta sigma modulator is described in this application. In one example, the continuous time delta sigma modulator includes: a quantizer, a buffer module, a randomizer, and a reference module. The quantizer includes a comparator that generates a digital output based on a comparison of a reference potential with an input generated based on a sample of an analog signal. The buffer module stores the digital output for a predetermined delay period and outputs the digital output after the predetermined delay period as a delayed digital output. The randomizer randomizes the delayed digital output to generate a randomized digital output. The reference module modifies the reference potential based on the randomized digital output.

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Hsinchu, Taiwan

Tai-cheng Kee