Column ADC power consumption balancing method applied to large-area-array image sensor
The invention discloses a column ADC (analog-to-digital converter) power consumption balancing method applied to a large-area array image sensor, different counting modes (called new counting modes) are respectively used for odd columns and even columns, and for counters in column ADCs (analog-to-di...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a column ADC (analog-to-digital converter) power consumption balancing method applied to a large-area array image sensor, different counting modes (called new counting modes) are respectively used for odd columns and even columns, and for counters in column ADCs (analog-to-digital converters) corresponding to a whole pixel array, no matter how large input signals are, no matter how large the input signals are, no matter how large the input signals are, no matter how large the input signals are, no matter how large the input signals are. Only half of the counters always work in the first stage and the second stage by using a new counting mode, so that the power consumption is kept constant, the power consumption fluctuation is avoided, and the image effect can be ensured.
本发明公开了一种应用于大面阵图像传感器的列ADC功耗平衡的方法,对奇数列和偶数列分别使用不同的计数方式(称为新计数方式),对于整个像素阵列对应列ADC(模数转换器)中的计数器,无论输入信号大小,使用新计数方式在第一阶段和第二阶段始终只有一半的计数器在工作,使得功耗保持了恒定,避免功耗波动,从而可以保证图像效果。 |
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