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t

TSL1402R

256

脳

1 LINEAR SENSOR ARRAY WITH HOLD

t

TAOS041 鈥?AUGUST 2002

V

DD

1

SI1 2

CLK 3

AO1 4

GND 5

SO2 6

NC 7

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

NC 鈥?No internal connection

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

脳

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

碌m

by 55.5

碌m,

with 63.5-碌m center-to-center spacing and 8-碌m 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 鈥?pin numbers apply to section 1)

1

Pixel 1

Integrator

Reset

Pixel

2

Pixel

3

Pixel

128

Analog

Bus

Output

Buffer

4

AO

V

DD

_

+

Sample/Hold/

Output

Switch Control Logic

Hold

Q1

Q2

Q3

Q128

CLK

SI

3

2

128-Bit Shift Register

The

LUMENOLOGY

r

Company

t

Texas Advanced Optoelectronic Solutions Inc.

800 Jupiter Road, Suite 205

S

Plano, TX 75074

S

(972) 673-0759

t

www.taosinc.com

1

脟脟

脟脟

脟脟

脟脟

脟脟

脡脡

脡脡

脡脡

脡脡

脡脡

D

D

D

D

D

D

D

D

D

D

D

256

脳

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

(TOP VIEW)

14 NC

13 SO1

12 GND

11 NC

10 SI2

9 NC

8 AO2

5

GND

Gain

Trim

13

SO

Copyright

E

2002, TAOS Inc.

next

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