Using active components to perform voltage division in digital-to-analog conversion

Author

Chong, Chu Phoon ; Smith, Kenneth C. ; Vranesic, Zvonko G.

Author_Institution

Dept. of Electr. Eng., Toronto Univ., Ont., Canada

Volume

24

Issue

4

fYear

1989

fDate

8/1/1989 12:00:00 AM

Firstpage

999

Lastpage

1002

Abstract

The design of a voltage-mode digital-to-analog (D/A) converter using only fabrication steps required by MOSFETs is described. The converter is implemented using a basic-circuit-building block called the three-input amplifier (TIAMP), which can perform voltage addition and voltage division by 2 without using any passive component. The technique has been used to implement a 12 bit D/A converter for which five samples were tested with accuracies ranging from 6 to 10 bits. Accuracy is limited in the present design by the relatively small sizes chosen for the input transistors. The maximum conversion rate of the present prototypes has been measured to be approximately 1 MHz with a static power dissipation of 50 mW

Keywords

digital-analogue conversion; insulated gate field effect transistors; voltage dividers; 50 mW; D/A converter; MOSFETs; digital-to-analog conversion; maximum conversion rate; three-input amplifier; voltage addition; voltage division; Adders; Assembly systems; Costs; Digital circuits; Digital systems; Digital-analog conversion; Fabrication; MOSFETs; Operational amplifiers; Voltage;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.34084

Filename

34084