DocumentCode :
1474229
Title :
An 8-bit CMOS 3.3-V 65-MHz digital-to-analog converter with a symmetric two-stage current cell matrix architecture
Author :
Kim, Ji Hyun ; Yoon, Kwang Sub
Author_Institution :
LG Semicon Co., South Korea
Volume :
45
Issue :
12
fYear :
1998
fDate :
12/1/1998 12:00:00 AM
Firstpage :
1605
Lastpage :
1609
Abstract :
This paper describes a 3.3-V-65-MHz 8-bit CMOS digital-to-analog converter (DAC) with two-stage current cell matrix architecture which consists of a 4-MSB and a 4-LSB current matrix stage. The symmetric two-stage current cell matrix architecture allows the designed DAC to reduce not only the complexity of decoding logic, but also the number of high swing cascode current mirrors. The designed DAC with an active chip area of 0.8 mm2 is fabricated by a 0.8-μm CMOS n-well standard digital process. The experimental data shows that the rise/fall time, the settling time, and integral nonlinearity/differential nonlinearity (INL/DNL) are 6 ns, 16 ns, and less than 0.8 LSB, respectively. The designed DAC is fully operational for the power supply down to 2.0 V, such that the DAC is suitable for a low voltage and a low power system application. The power dissipation of the DAC with a single power supply of 3.3 V is measured to be 34.5 mW
Keywords :
CMOS integrated circuits; current mirrors; digital-analogue conversion; low-power electronics; 0.8 micron; 2.0 to 3.3 V; 3.3 V; 34.5 mW; 65 MHz; 8 bit; CMOS; active chip area; decoding logic; differential nonlinearity; digital-to-analog converter; fall time; high swing cascode current mirrors; integral nonlinearity; low power system; n-well standard digital process; power dissipation; rise time; settling time; symmetric two-stage current cell matrix; CMOS logic circuits; CMOS process; Decoding; Digital-analog conversion; Logic design; Low voltage; Matrix converters; Mirrors; Power supplies; Symmetric matrices;
fLanguage :
English
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
Publisher :
ieee
ISSN :
1057-7130
Type :
jour
DOI :
10.1109/82.746683
Filename :
746683
Link To Document :
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