| 摘要 |
An imaging apparatus using a CCD image sensor in which a size of a circuit for generating a voltage to be applied to a substrate of the CCD image sensor is reduced. A partial range within a voltage range from a supply voltage Vcc to 0 V is divided by a resistance voltage divider and one of different voltage values obtained as a result of voltage division is selected by a selector according to external data and outputted to a high voltage amplifier. The high voltage amplifier generates a voltage signal with a voltage expressed by VMSUB=(Vdaout−Vdd2)×(3R+R)/R+Vdd2=4×Vdaout−3×Vdd2(V) to make it a middle voltage for an exposure control signal. |
