Title :
Smart CMOS focal plane arrays: a Si CMOS detector array and sigma-delta analog-to-digital converter imaging system
Author :
Joo, Youngjoong ; Park, Jinsung ; Thomas, Mikkel ; Chung, Kee Shik ; Brooke, Martin A. ; Jokerst, Nan Marie ; Wills, D. Scott
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
This paper evaluates the potential for the real-time utilization of high frame rate image sequences using a fully parallel readout system. Multiple readout architectures for high frame rate imaging are compared. The application domain for a fully parallel readout system is identified, and the design for a fully parallel, monolithically integrated smart CMOS focal plane array is presented. This focal plane image processing chip, with an 8×8 array of Si CMOS detectors each of which have a dedicated on-chip current input first-order sigma-delta analog-to-digital converter front end, has been fabricated, and test results for uniformity and linearity are presented
Keywords :
CMOS image sensors; CMOS integrated circuits; focal planes; image sequences; integrated optoelectronics; optical arrays; parallel architectures; photodetectors; sigma-delta modulation; smart pixels; 8×8 array; Si; Si CMOS detector array; Si CMOS detectors; application domain; dedicated on-chip current input first-order sigma-delta analog-to-digital converter front end; focal plane image processing chip; fully parallel monolithically integrated smart CMOS focal plane array; fully parallel readout system; high frame rate image sequences; high frame rate imaging; linear; multiple readout architectures; real-time utilization; sigma-delta analog-to-digital converter imaging system; smart CMOS focal plane arrays; uniformity; Analog-digital conversion; CMOS process; Delta-sigma modulation; Detectors; Image processing; Image sequences; Linearity; Real time systems; Sensor arrays; Testing;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/2944.778309
