Title :
Rapid Simulation of Current Steering Digital-to-Analog Converters using Verilog-A
Author :
Shanmugasundaram, Murali ; Pavan, Shanthi
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Madras
Abstract :
The paper presents a technique to drastically reduce the simulation time of current-steering DACs, while maintaining the accuracy of a full transistor level simulation. Time varying current controlled current sources (implemented in Verilog-A) are used to simplify the thermometer portion of the DAC, thereby reducing device count and simulation time. A comparison of the results of the technique with a full transistor level 10-bit DAC operating at 500 Msps shows that a speed-up of 40times is achievable, with no loss of accuracy
Keywords :
circuit simulation; constant current sources; digital-analogue conversion; electronic engineering computing; hardware description languages; DAC; Verilog-A; current steering digital-to-analog converters; rapid simulation; thermometer portion; time varying current controlled current source; transistor level simulation; Circuit simulation; Clocks; Decoding; Digital-analog conversion; Hardware design languages; Impedance; Logic devices; Mathematical model; Switches; Synchronization;
Conference_Titel :
Custom Integrated Circuits Conference, 2006. CICC '06. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
1-4244-0075-9
Electronic_ISBN :
1-4244-0076-7
DOI :
10.1109/CICC.2006.320910
