Title :
A 0.9 V 5 MS/s CMOS D/A converter with multi-input floating-gate MOS
Author :
Wong, Louis S Y ; Kwok, Chee Y. ; Rigby, Graham A.
Author_Institution :
Sch. of Electr. Eng., New South Wales Univ., Sydney, NSW, Australia
Abstract :
An ultra low voltage, low power CMOS D/A converter using a simple multi-input floating-gate MOSFET to perform the dual function of current source and current switch is described. The outcome of this approach is very low supply voltage operation and yet maintaining high conversion accuracy. An experimental 6-bit D/A converter has been fabricated in a standard 1.2 μm CMOS technology with Vth≈0.9 V and occupies 0.63 mm2 active area. Measurement shows a single 0.9 V supply is sufficient to operate this converter, with less than 0.46 LSB linearity error, 5 MS/s conversion rate and 320 μW power dissipation
Keywords :
CMOS integrated circuits; digital-analogue conversion; 0.9 V; 1.2 micron; 320 muW; 6 bit; CMOS D/A converter; current source function; current switch function; high conversion accuracy; low power DAC; multi-input floating-gate MOSFET; ultra low voltage; Australia; CMOS process; CMOS technology; Latches; Linearity; Low voltage; MOSFET circuits; Matrix converters; Power dissipation; Switches;
Conference_Titel :
Custom Integrated Circuits Conference, 1997., Proceedings of the IEEE 1997
Conference_Location :
Santa Clara, CA
Print_ISBN :
0-7803-3669-0
DOI :
10.1109/CICC.1997.606635
