CMOS linear image sensors are self-scanning photodiode arrays designed as sensors for multi-channel spectrophotometry and other industrial applications. The CMOS signal processing circuit includes an internal integration amplifier and clamping circuit. This enables the user to construct a simple external driver circuit. The 5 V single power supply makes for simple operation. The photodiode array has a broad spectral response and a high level of ultraviolet sensitivity with stable characteristics under ultraviolet illumination. The low dark current and large charge saturation enables signals to be obtained with a high signal to noise ratio.