Title :
An Area Optimized 2.5-V 10-b 200-MS/s 200-μA CMOS DAC
Author :
Nejati, Babak ; Larson, Lawrence
Author_Institution :
Sequoia Commun., San Diego, CA
Abstract :
A 10-b 200-MSample/s digital-to-analog converter is optimized for low power and low area with plusmn25%, 0.1% incremental gain control. The converter uses a combined thermometer coded current-steering DAC and an R-2R load to achieve a compact layout and sub-muA LSB current. It provides more than 61dB spurious-free dynamic range over 50MHz bandwidth within -20degC to +95degC temperature range and plusmn10% supply variation from a dual 2.5/1.8-V supply. The differential and integral non-linearity of the converter are within plusmn0.1LSB. The 0.55mm times 0.47mm converter is implemented in a 0.35/0.18-mum CMOS technology and the DAC core dissipates only 200muA static current from a 2.5V analog supply
Keywords :
CMOS integrated circuits; digital-analogue conversion; -20 to 95 C; 0.18 micron; 0.35 micron; 0.47 mm; 0.55 mm; 1.8 V; 10 bit; 2.5 V; 200 muA; CMOS DAC; CMOS technology; differential nonlinearity; digital-to-analog converter; gain control; integral nonlinearity; thermometer coded current-steering DAC; Bandwidth; CMOS digital integrated circuits; CMOS technology; Dynamic range; Energy consumption; Gain control; Linearity; Resistors; Switches; Wireless communication;
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.2006.320870
