A 140 dB equivalent dynamic range receiver interface for an infrared rain-sensing IC

Author

Krenzke, Rainer ; Ji, Cang

Author_Institution

Dialog Semicond. GmbH, Kirchheim-Teck, Germany

fYear

2011

fDate

12-16 Sept. 2011

Firstpage

123

Lastpage

126

Abstract

A receiver interface for automotive infrared rain-sensing application is described which uses multi-scale ΔΣ A/D conversion and digital closed-loop compensation to achieve a dynamic range from 1.5nA to 14mA. It compensates ambient current from 14mA down to 1μA within 56μsec and accommodates an infrared pulse within 32μsec. The receiver is designed to operate synchronized with a transmitter to build an infrared light measurement system. The active area of the receiver is 2.75mm² including 1mm² of digital circuitry in 0.35μm CMOS.

Keywords

CMOS integrated circuits; analogue-digital conversion; automotive electronics; closed loop systems; compensation; delta-sigma modulation; infrared detectors; optical receivers; optical transmitters; CMOS; ambient current; automotive infrared rain-sensing application; current 1.5 nA to 14 mA; digital circuitry; digital closed-loop compensation; equivalent dynamic range receiver interface; infrared light measurement system; infrared pulse; infrared rain-sensing IC; multiscale ΔΣ A/D conversion; size 0.35 mum; Current measurement; Dynamic range; Finite impulse response filter; Noise; Pulse measurements; Receivers;

fLanguage

English

Publisher

ieee

Conference_Titel

ESSCIRC (ESSCIRC), 2011 Proceedings of the

Conference_Location

Helsinki

ISSN

1930-8833

Print_ISBN

978-1-4577-0703-2

Electronic_ISBN

1930-8833

Type

conf

DOI

10.1109/ESSCIRC.2011.6044930

Filename

6044930