Title :
A current switch of current-steering DAC output stage
Author :
Luo, Pu ; Yang, Weidong ; Fu, Dongbing
Author_Institution :
Nat. Key Lab. of Sci. & Technol., Chongqing, China
Abstract :
When DAC is applied to communication field, it is generally necessary to have a good dynamic performance. However, nonlinear distortion of output stage current switch has a potent effect on DAC as a whole. The approach proposed in this paper aims to improve on distortion in output stage. As a result of practical measurement, clock frequency is 200MHz, and SFDR of the DAC with a data frequency of 20MHz is 83dBC.
Keywords :
digital-analogue conversion; nonlinear distortion; switched current circuits; DAC; SFDR; communication field; current steering; frequency 20 MHz; frequency 200 MHz; nonlinear distortion; output stage current switch; Capacitors; Current measurement; Fluctuations; Frequency measurement; Switches; Switching circuits; Transistors; Current_switch; SFDR; non-linearity;
Conference_Titel :
Anti-Counterfeiting, Security and Identification (ASID), 2011 IEEE International Conference on
Conference_Location :
Xiamen
Print_ISBN :
978-1-61284-631-6
DOI :
10.1109/ASID.2011.5967439
