The TSL1401CL linear array from Austriamicrosystems consists of integrating photosensing pixels. These pixels measure incident light over a user-defined exposure time and generate a voltage or digital output which represents the light exposure at each pixel. The analogue output may be directly interfaced to an ADC for digital processing or comparing for black/white thresholds. Suitable applications for the TSL1401CL include; contact image sensing, OCR, edge detection, and object measurement in products such as copiers, document scanners, and spectroscopy.
Features of the TSL1401CL linear sensor array: 128 x 1 photodiode array 400 DPI sensor pitch Charge amplifier circuitry Internal pixel data-hold function High uniformity Wide dynamic range: 4000:2 (72 dB)