Title :
A 10-bit high-speed low-power CMOS D/A converter in 0.2 mm2
Author :
Sumanen, Lauri ; Waltari, Mikko ; Halonen, Kari
Author_Institution :
Electron. Circuit Design Lab., Helsinki Univ. of Technol., Espoo, Finland
Abstract :
This paper describes design and implementation of a 10-bit current steering CMOS D/A converter for a direct digital synthesizer. A very small circuit area is achieved by constructing the binary weighted currents using two sized unit current sources. This structure also leads to low power consumption since no decoding logic is needed. The glitch energy is reduced by using properly overlapped and amplitude limited steering signals for the differential current switches. The measured DNL is 0.43 LSB and INL 0.35 LSB. According to simulations the circuit achieves >60 dBc SFDR at 250 MS/s sampling rate with power dissipation of 17 mW@3.3 V. The circuit is implemented in 0.5 μm CMOS technology
Keywords :
CMOS integrated circuits; digital-analogue conversion; direct digital synthesis; high-speed integrated circuits; low-power electronics; 0.5 micron; 10 bit; 17 mW; 3.3 V; CMOS; D/A converter; amplitude limited steering signals; binary weighted currents; circuit area; current steering; differential current switches; direct digital synthesizer; glitch energy; high-speed ICs; low-power electronics; sampling rate; sized unit current sources; CMOS logic circuits; CMOS technology; Circuit simulation; Decoding; Electronic circuits; Energy consumption; Laboratories; Signal sampling; Switches; Synthesizers;
Conference_Titel :
Electronics, Circuits and Systems, 1998 IEEE International Conference on
Conference_Location :
Lisboa
Print_ISBN :
0-7803-5008-1
DOI :
10.1109/ICECS.1998.813255
