The paper describes the theory of a second-order dynamic element matching (DEM) technique, which eliminates noise floor modulation and provides a practical means to implement high performance convertors. The DEM architecture achieves 138-dB THD+N with 2% element mismatch and 128x oversampling ratio. The implementation of this technique in a low-cost, multibit delta-sigma, 120-dB audio DAC is discussed.

Author: Gong, Xue-Mei
Affiliation: Cirrus Logic, Austin, TX
AES Convention: 108 (February 2000) Paper Number: 5124
Publication Date: February 1, 2000
Subject: Signal Processing

Click to purchase paper as a non-member or you can login as an AES member to see more options.

No AES members have commented on this paper yet.

Subscribe to this discussion

To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.

Start a discussion!

If you would like to start a discussion about this paper and are an AES member then you can login here:
Username:
Password:

If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.