Title :
A novel MDAC for using in a 14b, 120MS/s ADC in 0.35µm CMOS technology
Author :
Ghaderi, Noushin ; Hadidi, Khayrollah ; Khoei, Abdollah
Author_Institution :
Dept. of Electr. Eng., Urmia Univ., Urmia, Iran
Abstract :
A 14bit MDAC with 120MS/s conversion rate, in 0.35um CMOS technology is presented. The MDAC consumes a power of 36mW from a 3.3v power supply and its settling time is 7ns. It utilizes a new high speed, high gain Op Amp, with 102dB gain, and 1.2GHz bandwidth. The phase margin of Op Amp is 51° and its settling time is 5ns for feedback gain of 8. The Op Amp has a good linearity of -60dB.
Keywords :
CMOS integrated circuits; analogue-digital conversion; operational amplifiers; ADC; CMOS technology; MDAC; bandwidth 1.2 GHz; gain 102 dB; op-amp; power 36 mW; size 0.35 micron; voltage 3.3 V; word length 14 bit; Bandwidth; CMOS integrated circuits; CMOS technology; Capacitors; Converters; Operational amplifiers; Simulation;
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2010 10th IEEE International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-5797-7
DOI :
10.1109/ICSICT.2010.5667667
