Title :
A CMOS 16-bit 20MSPS analog front end for scanner/MFP applications
Author :
You, Seung-Bin ; Kim, Jae-Whui ; Kim, Suki
Author_Institution :
Korea Univ., Seoul, South Korea
Abstract :
This paper presents a monolithic 16-bit analog front end (AFE) chip for CCD/CIS scanner and MFP(Multi-function Peripheral) systems incorporating a 16-bit analog-to-digital converter (ADC), a 3-channel high resolution correlated double sampler (CDS), a programmable gain amplifier (PGA) and an on-chip voltage reference. The AFE, fabricated in a 0.35 μm CMOS process, occupies an active area of 8 mm2 and consumes 300 mW at a 3 V supply. For the full signal path (CDS-PGA-ADC), no missing code is guaranteed at a 16-bit resolution and typical differential nonlinearity (DNL) and integral nonlinearity (INL) are +1.31-0.92 LSB and +6.7/-16.6 LSB, respectively.
Keywords :
CCD image sensors; CMOS analogue integrated circuits; analogue-digital conversion; image scanners; programmable circuits; 0.35 micron; 16 bit; 3 V; 300 mW; A/D converter; CCD/CIS scanner; CMOS analog front end; CMOS process; active area; charge coupled devices; contact image sensors; differential nonlinearity; full signal path; high resolution correlated double sampler; integral nonlinearity; monolithic analog front end chip; multi-function peripheral systems; on-chip voltage reference; pipelined ADC; programmable gain amplifier; scanner/MFP applications; tri-linear color CCD arrays; CMOS process; Charge coupled devices; Computational Intelligence Society; Electronics packaging; Energy consumption; High-resolution imaging; Power supplies; Prototypes; Signal resolution; Voltage;
Conference_Titel :
Consumer Electronics, 2003. ICCE. 2003 IEEE International Conference on
Print_ISBN :
0-7803-7721-4
DOI :
10.1109/ICCE.2003.1218994
