2006
DOI: 10.1109/jssc.2006.884866
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A CMOS Imager With Column-Level ADC Using Dynamic Column Fixed-Pattern Noise Reduction

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Cited by 62 publications
(37 citation statements)
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“…The CDS technique is employed to suppress offset and low-frequency noise components up to the sampling stage. In order to furtherly improve signal integrity, some imager architectures still implement analog pixel schemes, but perform internal A/D conversion at chip [51,52] or row/column levels [53][54][55], the latter earlier to output multiplexing. Fig.…”
Section: Fpa Architecturesmentioning
confidence: 99%
“…The CDS technique is employed to suppress offset and low-frequency noise components up to the sampling stage. In order to furtherly improve signal integrity, some imager architectures still implement analog pixel schemes, but perform internal A/D conversion at chip [51,52] or row/column levels [53][54][55], the latter earlier to output multiplexing. Fig.…”
Section: Fpa Architecturesmentioning
confidence: 99%
“…Therefore, the conversion time of two-step SS-ADC is theoretically 16 times faster than that of the conventional SS-ADC. Two-step SS-ADC is suitable for high speed CIS systems [3][4][5][6][7][8]. Fig.…”
Section: Circuit Descriptionmentioning
confidence: 99%
“…At the initial stage, a correlated double sampling between the pixel reset voltage and pixel signal voltage is starting with the switches S1, S2 and the capacitors C H , C 1 . The offset error of comparator and pixel FPN is almost removed with this CDS operation [7]. At the stage of coarse A/D conversion, then, a 5-bit resolution coarse ramp signal is driven to the comparator with the switch (SADC2) off, and the switches (SADC1, FB) on.…”
Section: Circuit Descriptionmentioning
confidence: 99%
See 1 more Smart Citation
“…Traditionally CMOS image sensors (CISs) are targeted to high-end applications where resolution and image quality is of great importance [1,2]. Nowadays, the emerging applications of portable electronics, implantable biomedical imagers [3] and smart home devices [4] have generated an increasing demand for ultra-low power image sensors.…”
Section: Introductionmentioning
confidence: 99%