New logarithmic two-step flash A/D converter with digital error correction for MOS technology

Author

Guilherme, Jorge ; Vital, João ; Franca, José E.

Author_Institution

Center for Microsyst., Inst. Superior Tecnico, Lisbon, Portugal

Volume

2

fYear

1995

fDate

13-16 Aug 1995

Firstpage

881

Abstract

A new technique for realising in MOS technology a logarithmic analog-to-digital (A/D) converter employing a two-step flash architecture suitable for high-frequency operation is described. While the logarithmic operation is achieved by replacing the linear operations of subtraction and multiplication by simple scaling operations, the use of digital error correction techniques allows one to achieve high resolution and high dynamic range performance. An example is given to illustrate the proposed technique

Keywords

CMOS integrated circuits; analogue-digital conversion; arithmetic; error correction; CMOS technology; MOS technology; digital error correction; high dynamic range performance; high resolution; high-frequency operation; logarithmic two-step flash A/D converter; scaling operations; Analog integrated circuits; Analog-digital conversion; Attenuation; CMOS technology; Digital integrated circuits; Error correction; Integrated circuit technology; Pulse width modulation converters; Quantization; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1995., Proceedings., Proceedings of the 38th Midwest Symposium on

Conference_Location

Rio de Janeiro

Print_ISBN

0-7803-2972-4

Type

conf

DOI

10.1109/MWSCAS.1995.510230

Filename

510230