Abstract
This paper presents an implementation of a conventional 256 × 256 CMOS image sensor (CIS) system with on-chip 12 bit, 6.3 MS/s CMOS pipelined analog-to-digital converter (ADC). The test chip has been implemented in 0.35 μm 2P4M process, operated by a 3.3 V supply and its total power consumption is only 50 mW with maximum DNL of -0.8 LSB and maximum INL of ±4.2 LSB under 6.3 MS/s. The total area of the prototype is 12 mm2, and the core area of ADC is only 18% of the total area. System architecture and operation are discussed and measurements from a test chip are showed.
Original language | English |
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Pages (from-to) | 119-125 |
Number of pages | 7 |
Journal | Sensors and Actuators, A: Physical |
Volume | 135 |
Issue number | 1 |
DOIs | |
State | Published - 30 Mar 2007 |
Keywords
- Active pixel sensor
- Analog-to-digital conversion
- CMOS imagers
- Pipelined ADC
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Instrumentation
- Condensed Matter Physics
- Surfaces, Coatings and Films
- Metals and Alloys
- Electrical and Electronic Engineering