A second-order high-resolution incremental A/D converter with offset and charge injection compensation

Author

Robert, Jacques ; Deval, Philippe

Author_Institution

Electron. Lab., ETH, Lausanne, Switzerland

Volume

23

Issue

3

fYear

1988

fDate

6/1/1988 12:00:00 AM

Firstpage

736

Lastpage

741

Abstract

Measurement and instrumentation applications require absolute accuracy, e.g. offset and gain errors cannot be tolerated. These applications are characterized by DC performance such as differential and integral nonlinearities, offset and gain errors, and they often require high resolution. The second-order incremental A/D converter, which makes use of sigma-delta modulation associated with a simple digital filter, is capable of achieving such requirements. Experimental results of circuits fabricated in a SACMOS 3- mu m technology indicate that 15-bit absolute accuracy is easily achievable, even with a low reference voltage.<>

Keywords

CMOS integrated circuits; analogue-digital conversion; 15 bits; 15-bit absolute accuracy; 3 micron; ADC; DC performance; SACMOS; charge injection compensation; high resolution; incremental A/D converter; low reference voltage; offset compensation; second-order incremental A/D converter; self aligned CMOS; sigma-delta modulation; Circuits; Clocks; Delta-sigma modulation; Gain measurement; Instruments; Noise shaping; Performance gain; Signal to noise ratio; Switches; Voltage;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.313

Filename

313