High-speed digital to analog converter issues with applications to Sigma Delta modulators

This paper addresses the timing and switching errors of Switched Current (SI) Digital to Analog Converters (DAC) aimed to be used in high speed multibit ~ and Nyquist Converters. The analysis is based on an error-analysis framework, according to which all the errors are classified dependent on their properties with respect to the time and spatial domains. Examples are presented that are related with significant problems occuring during implementation, and with overall requirements of high speed multi-bit~modulators