| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-precision cyclic A/D converter and image sensor using the same. SOLUTION: Capacitors (C1, C2) are connected between an input of an inverted amplifier and an input signal and similarly between the input of the inverted amplifier and an output thereof, thereby obtaining a stable gain 2 and a capacitance error between the capacitors (C1, C2) is canceled by a capacitor (C3) for correction, thereby performing high-precision cyclic A/D conversion. It is important therefor to control opening/closing of a switch which changes over the connection of the capacitors. COPYRIGHT: (C)2007,JPO&INPIT
|
