Assessment of Analog Time Multiplexing in SDM Digital to Analog Converters
This addresses a specific issue in DAC design for signal processing, likely incremental as it builds on existing multiplexing schemes.
The paper tackles the problem of mismatch in DAC gain affecting performance in analog time multiplexing for sigma delta modulated Digital to Analog Converters, proposing a new dynamic elements matching technique to overcome this limitation.
Analog multiplexing for sigma delta modulated Digital to Analog Converters has been recently proposed as a means of achieving robustness. This preprint analyses said scheme via simulations. The main limitation introduced by the proposed architecture comes from mismatch in the DACs gain, which can drastically impact performances. A new technique of dynamic elements matching is proposed here to overcome this problem.