A 79 dB-SNR 70 mW 18 MHz CCD front-end with fully-digital amplification scheme

Author

Nitta, Shozo ; Tanaka, Kenji

Author_Institution

Texas Instrum. Japan, Kanagawa, Japan

Volume

47

Issue

3

fYear

2001

fDate

8/1/2001 12:00:00 AM

Firstpage

459

Lastpage

465

Abstract

This paper presents a fully monolithic 10 bit front end for CCD cameras which incorporates a 14 bit analog-to-digital converter (ADC) and a digital programmable gain amplifier (DPGA). With the adoption of a fully-digital amplification scheme, it solves almost all the problems associated with the conventional front-ends and attains low-noise, low-power and robust gain characteristic. Test results show a 79 dB SNR (@gain=0 dB) with the power consumption of 70 mW @18 MHz

Keywords

CCD image sensors; amplifiers; analogue-digital conversion; cameras; monolithic integrated circuits; programmable circuits; 10 bit; 14 bit; 18 MHz; 70 mW; 79 dB; ADC; CCD cameras; CCD front-end; analog-to-digital converter; digital programmable gain amplifier; full-digital amplification; low-noise characteristic; low-power front-end; monolithic front end; power consumption; robust gain characteristic; Analog integrated circuits; Charge coupled devices; Charge-coupled image sensors; Digital cameras; Digital integrated circuits; Electronics packaging; Energy consumption; Performance gain; Robustness; Signal resolution;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.964134

Filename

964134