• Chaithanya Jyothi Y S
• Wahida Banu B
• Srikantha K M

Recent advancements in CMOS image sensor technology are reviewed, including both passive pixel sensors and active pixel sensors. CMOS active pixel sensor (APS) with on chip column-parallel successive-approximation analog-to-digital converter (ADC).Active pixel sensor consists of a pixel that converts the incoming light in to a charge. A CMOS imaging sensor uses active pixel sensor (APS) technology where charge to voltage conversion is carried out on the pixel itself .In this active pixel sensor technology the voltage generated by each pixel is in line by line fashion ,Initially the first row and first column is activated and we can read the data and so on . The system integration is very similar to the integrated circuit we can integrate the peripheral components on to a single chip using ADC, requires single power supply typically 3.3v to 5v and consumes less power. This method can also used to increase high speed, low noise and low sensitivity as the amplifiers used are not identical

"CMOS Successive Approximation ADC Used In Active Pixel Sensor On-Chip", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.96-98, May-2019, Available :http://www.jetir.org/papers/JETIRCJ06024.pdf

"CMOS Successive Approximation ADC Used In Active Pixel Sensor On-Chip", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp96-98, May-2019, Available at : http://www.jetir.org/papers/JETIRCJ06024.pdf