Title :
A 1-V CMOS D/A converter with multi-input floating-gate MOSFET
Author :
Wong, Louis S Y ; Kwok, Chee Y. ; Rigby, Graham A.
Author_Institution :
New South Wales Univ., Kensington, NSW, Australia
fDate :
10/1/1999 12:00:00 AM
Abstract :
A low-voltage D/A converter using multi-input floating-gate MOSFET within a matrix current cell architecture is described in this paper. The two-input floating-gate p-channel MOSFET of each current cell performs the combined functions of current source and current switch. The double-gate-driven MOSFET circuit technique was employed in the digital circuitry to facilitate low supply voltage operation. A 6-bit and 8-bit digital-to-analog converter (DAC) have been fabricated in standard double-poly double-metal 1.2 μm CMOS technology. Measurements show a supply voltage as low as 0.9 and 1.0 V is sufficient to operate the 6-bit and 8-bit DAC, respectively, with a 5 Msamples/s conversion rate
Keywords :
CMOS integrated circuits; constant current sources; digital-analogue conversion; low-power electronics; switching circuits; 1 V; 1.2 micron; 6 bit; 8 bit; CMOS; D/A converter; conversion rate; current source; current switch; double-poly double-metal process; low supply voltage operation; matrix current cell architecture; multi-input floating-gate MOSFET; supply voltage; Australia; CMOS integrated circuits; CMOS process; CMOS technology; Logic circuits; Low voltage; MOSFET circuits; Matrix converters; Switches; Switching circuits;
Journal_Title :
Solid-State Circuits, IEEE Journal of
