Title :
A 10-bit 1-GS/s current-steering DAC with Carbon Nanotube Field Effect transistor (CNFET)
Author :
Moslehi-nejad, P. ; Shahhoseini, A. ; Behtoee, B.
Author_Institution :
Dept. of Electr. Eng., Qazvin Islamic Azad Univ., Qazvin, Iran
Abstract :
In this paper, a 10-bit 1-GSample/s Nyquist current-steering digital-to-analog converter (DAC) based on Carbon Nano Tube Field Effect Transistor (CNFET) technology is presented. All the basic building blocks of current-steering digital-to-analog converter are implemented by carbon nanotube field effect transistor. Supply voltages are under 1V. This design has used a pseudo-segmented structure and DAC is binary-weighted. implement basic blocks with carbon nanotube technology, lead to reduce glitch, clock feed-through and power consumption. Simulation results show that the spurious-free-dynamic-range (SFDR) in Nyquist rate is about 62dB at 250MS/s input for sampling frequency equal to 1-GS/s. Either both DNL and INL are less than 0.5 LSB.
Keywords :
carbon nanotube field effect transistors; digital-analogue conversion; semiconductor device models; CNFET; Nyquist current-steering; Nyquist rate; SFDR; carbon nanotube field effect transistor; clock feed-through; current-steering DAC; digital-to-analog converter; glitch reduction; power consumption; pseudosegmented structure; spurious-free-dynamic-range; word length 10 bit; CNTFETs; Clocks; Logic gates; Substrates; Switches; Synchronization; CNFET; current-steering DAC; glitch; low power; pseudo-segmentation;
Conference_Titel :
Devices, Circuits and Systems (ICDCS), 2012 International Conference on
Conference_Location :
Coimbatore
Print_ISBN :
978-1-4577-1545-7
DOI :
10.1109/ICDCSyst.2012.6188665
