TSL1402R

256 × 1 LINEAR SENSOR ARRAY WITH HOLD

TAOS041F − APRIL 2007

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The LUMENOLOGY r Company

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Copyright E 2007, TAOS Inc.

www.taosinc.com

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)

2

3

SI

CLK

128-Bit Shift Register

Q128

Switch Control Logic

Integrator

Reset

_

+

Pixel 1

Pixel

2

Pixel

128

Pixel

3

Sample/Hold/

Output

Analog

Bus

Q3

Q2

Q1

Hold

SO

13

Output

Buffer

Gain

Trim

AO

GND

5

4

1

S1

S2

2

1

3

1

2

r

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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

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