Title :
Current-mode motion detector sensor using copier cell in CMOS technology
Author :
Silva, Margarida M. ; Swart, J.W. ; Moreira, L.C. ; Noije, Van ; Wilhelmus, A.M.
Author_Institution :
Sch. of Electr. & Comput. Eng., State Univ. of Campinas, Campinas, Brazil
Abstract :
This paper presents a CMOS pixel motion detector based on an current-mode APS (Active Pixel Sensor) topology using standard 0.35μm CMOS process. We propose a design with transmission gate to control two copier cells to compare different integration time. The pixel output is a differential current signal proportional to the difference between the two current copier cells level. The whole circuit has been simulated using LTSpice and the results had demonstrated the circuit capability to operate as a motion detector. Simulations show an average power consumption of 99nW per pixel respectively at 3.3V power supply voltage. The complete circuit pixel occupies a very small area of 33μm ×73μm.
Keywords :
CMOS image sensors; photocopying; CMOS pixel motion detector; LTSpice; active pixel sensor topology; copier cell; current signal; current-mode APS topology; current-mode motion detector sensor; power 99 nW; size 0.35 mum; voltage 3.3 V; Active pixel sensors; CMOS integrated circuits; Detectors; Integrated circuit modeling; Mirrors; Photodiodes; Transistors;
Conference_Titel :
Electronics, Circuits and Systems (ICECS), 2011 18th IEEE International Conference on
Conference_Location :
Beirut
Print_ISBN :
978-1-4577-1845-8
Electronic_ISBN :
978-1-4577-1844-1
DOI :
10.1109/ICECS.2011.6122317
