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

Volume

34

Issue

10

fYear

1999

fDate

10/1/1999 12:00:00 AM

Firstpage

1386

Lastpage

1390

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;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.792610

Filename

792610