RAMP SIGNAL GENERATOR AND CMOS IMAGE SENSOR USING THE SAME

摘要

A ramp signal generator and a CMOS image sensor using the same are disclosed. The ramp signal generator includes a reference voltage generation unit that generates a reference voltage, a gain adjustment unit that adjusts a gain in cooperation with the reference voltage generation unit, a ramp bias voltage sampling unit that samples a ramp bias voltage of the gain adjustment unit, and a ramp signal generation unit that generates a ramp signal according to the ramp bias voltage sampled in the ramp bias voltage sampling unit.

主权项

1. A ramp signal generator comprising:
a reference voltage generation unit suitable for generating a reference voltage; a gain adjustment unit suitable for adjusting a gain; a ramp bias voltage sampling unit suitable for sampling a ramp bias voltage of the gain adjustment unit; and a ramp signal generation unit suitable for generating a ramp signal according to the ramp bias voltage sampled by the ramp bias voltage sampling unit.