TSL2301

102 × 1 LINEAR OPTICAL SENSOR ARRAY

WITH ANALOGTODIGITAL CONVERTER

TAOS007 – JULY 2000

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www.taosinc.com

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Copyright

E 2000, TAOS Inc.

Description

The TSL2301 is a 300-dpi, 102-pixel linear optical sensor array with an integrated 8-bit analog-to-digital

converter. The pixels are on 85-

µm centers and measure 85 µm (H) by 77 µm (W) with 8 µm between pixels.

Associated with each pixel is a charge integrator/amplifier and sample-hold circuit. All pixels have concurrent

integration periods and sampling times. Data communication is accomplished through a three-wire serial

interface. The array is split into three 34-pixel zones, with each zone having programmable gain and offset

levels.

The TSL2301 is intended for use in high-performance, cost-critical imaging and optical sensing applications.

Functional Block Diagram

PIXEL ARRAY WITH INTEGRATORS AND S-H

SCLK

SDIN

SDOUT

DIGITAL I/O

AND

CONTROL

DB<7:0>

ADDR<4:0>

READ

WRITE

OUTPUT CHARGE-TO-

VOLTAGE CONVERTER

WITH PROGRAMMABLE

GAINS AND OFFSETS

SECTOR

VREF

IREF

RESET/SAMPLE

START

ADCLK

DUAL 8-BIT

SA ADC

VREF

IREF

BIAS

BLOCK

PIXCLK

SI

HOLD

ZERO

LEFT EVEN

RIGHT ODD

RIGHT EVEN

IREF

8

5

3

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Texas Advanced Optoelectronic Solutions Inc.

800 Jupiter Road, Suite 205

S Plano, TX 75074 S (972) 673-0759

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SCLK

VDD

SDIN

SDOUT

NC

GND

GND

NC

(TOP VIEW)

NC – No internal connection