TSL1402R

r r TSL1402R 256 × 1 LINEAR SENSOR ARRAY WITH HOLD www.DataSheet4U.com TAOS041F − APRIL 2007 (TOP VIEW) D D D D D D D D D D D 256 × 1 Sensor-Element Organization 400 Dots-Per-Inch (DPI) Sensor Pitch High Linearity and Uniformity Wide Dynamic Range . . . 4000:1 (72 dB) Output Referenced to Ground Low Image Lag . . . 0.5% Typ Operation to 8 MHz Single 3-V to 5-V Supply Rail-to-Rail Output Swing (AO) No External Load Resistor Required Replacement for TSL1402 VDD 1 SI1 2 CLK 3 AO1 4 GND 5 SO2 6 NC 7 NC − No internal connection É É É É Ç É Ç Ç Ç Ç 14 NC 13 SO1 12 GND 11 NC 10 SI2 9 NC 8 AO2 Description The TSL1402R linear sensor array consists of two sections of 128 photodiodes each and associated charge amplifier circuitry, aligned to form a contiguous 256 × 1 pixel array. The device incorporates a pixel data-hold function that provides simultaneous integration start and stop times for all pixels. The pixels measure 63.5 μm by 55.5 μm, with 63.5-μm center-to-center spacing and 8-μm spacing between pixels. Operation is simplified by internal logic requiring only a serial-input pulse (SI) and a clock. The TSL1402R is intended for use in a wide variety of applications including mark and code reading, OCR and contact imaging, edge detection and positioning, and optical encoding. Functional Block Diagram (each section − pin numbers apply to section 1) Pixel 1 S1 1 Integrator Reset 2 2 Pixel 2 Pixel 3 Pixel 128 1 Analog Bus Output Buffer 4 AO VDD _ + 1 3 S2 Sample/Hold/ Ou...