Wide-Bandwidth High Dynamic Range D/A Converters
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Beschreibung
IGH-SPEED Digital to Analog (D/A) converters are essential components in digi- Htal communication systems providing the necessary conversion of signals encoding information in bits to signals encoding information in their amplitude vs. time domain characteristics. In general, they are parts of a larger system, the interface, which c- sists of several signal conditioning circuits. Dependent on where the converter is located within the chain of circuits in the interface, signal processing operations are partitioned in those realized with digital techniques, and those with analog. The rapid evolution of CMOS technology has established implicit and explicite trends related to the interface, and in particular to the D/A converter. The implicit relationship comes via the growth of digital systems. First, it is a global trend with respect to all interface circuits that increasing operating frequencies of digital systems place a similar demand for the interface circuits. The second trend takes place locally within the int- face. Initially, the D/A converter was placed at the beginning of the interface chain, and all signal conditioning was implemented in the analog domain after the D/A conversion. The increasing ?exibility and robustness of digital signal processing shifted the D/A converter closer to the end point of the chain where the demands for high quality high frequency operation are very high.
Follows a unique analysis and synthesis approach based on a framework of concepts Provides to the reader a thorough understanding of high frequency error mechanisms on current steering D/A converters Treats in detail timing errors caused by process mismatch and clock interconnects Shows the developed concepts in practice with the realization of a high performance Current Steering D/A converter in CMOS 0.18um process
Autor*in
Konstantinos Doris
Themen in »Wide-Bandwidth High Dynamic Range D/A Converters«
Analog to Digital Converters A/D CMOS Current Steering Digital to Analog Converters D/A High-speed converters Wideband converters communication