A switched-current incremental A/D converter

Author

Yúfera, Alberto ; Rueda, Adoración

Author_Institution

Dpto. de Disefio de Circuitos Analogicos, Centro Nacional de Microelectron., Sevilla, Spain

Volume

1

fYear

1996

fDate

12-15 May 1996

Firstpage

21

Abstract

This paper presents the implementation of an incremental A/D converter designed as part of the signal-conditioning circuitry of a pressure sensor interface. For technological compatibility, the switched-current technique was chosen, since it does not need double polysilicon CMOS process. The low precision of the SI technique have been partially overcome by using a offset cancellation algorithm and circuit enhancements. Resolutions of up to 10 bits are achieved for a 1 MHz clock frequency through electrical simulations. A 1 μm CMOS prototype is being tested and some experimental results are given

Keywords

CMOS integrated circuits; analogue-digital conversion; switched current circuits; 1 MHz; 1 micron; CMOS prototype; SI incremental ADC; incremental A/D converter; offset cancellation algorithm; pressure sensor interface; signal-conditioning circuitry; switched-current incremental ADC; CMOS process; CMOS technology; Circuit simulation; Circuit testing; Clocks; Frequency; Prototypes; Signal design; Signal resolution; Switching converters;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1996. ISCAS '96., Connecting the World., 1996 IEEE International Symposium on

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-3073-0

Type

conf

DOI

10.1109/ISCAS.1996.539798

Filename

539798