TSL1402R datasheet(1/14 Pages) TAOS | 256 × 1 LINEAR SENSOR ARRAY WITH HOLD

1 page

TSL1402R

256 × 1 LINEAR SENSOR ARRAY WITH HOLD

TAOS041F − APRIL 2007

The LUMENOLOGY r Company

www.taosinc.com

D 256 × 1 Sensor-Element Organization

D 400 Dots-Per-Inch (DPI) Sensor Pitch

D High Linearity and Uniformity

D Wide Dynamic Range . . . 4000:1 (72 dB)

D Output Referenced to Ground

D Low Image Lag ... 0.5% Typ

D Operation to 8 MHz

D Single 3-V to 5-V Supply

D Rail-to-Rail Output Swing (AO)

D No External Load Resistor Required

D Replacement for TSL1402

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)

CLK

128-Bit Shift Register

Q128

Switch Control Logic

Integrator

Reset

Pixel 1

Pixel

128

Pixel

Sample/Hold/

Output

Analog

Bus

Hold

Output

Buffer

Gain

Trim

VDD

GND

Texas Advanced Optoelectronic Solutions Inc.

1001 Klein Road S Suite 300 S Plano, TX 75074 S (972) 673-0759

(TOP VIEW)

NC − No internal connection

VDD 1

SI1 2

CLK 3

AO1 4

GND 5

SO2 6

NC 7

14 NC

13 SO1

12 GND

11 NC

10 SI2

9 NC

8 AO2

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