Datasheet > TSL230ARD

TSL230ARD

更新时间： 2024-10-01 03:26:15

品牌	Logo	应用领域
TAOS		转换器
页数	文件大小	规格书
14页	200K
描述
PROGRAMMABLE LIGHT-TO-FREQUENCY CONVERTERS

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TSL230ARD 数据手册

TSL230RD, TSL230ARD, TSL230BRD

PROGRAMMABLE LIGHT-TO-FREQUENCY CONVERTERS

TAOS054N − OCTOBER 2007

PACKAGE D

8-LEAD SOIC

(TOP VIEW)

D High-Resolution Conversion of Light

Intensity to Frequency With No External

Components

D Programmable Sensitivity and Full-Scale

S0 1

S1 2

8 S3

Output Frequency

7 S2

D Communicates Directly With a Microcontroller

D High Irradiance Responsivity . . .

OE 3

6 OUT

5 V_DD

790 Hz/(ꢀW/cm ) Typical at 640 nm

GND 4

D Single-Supply Operation . . . 2.7 V to 5.5 V

D Power-Down Feature . . . 5 ꢀA Typical

D Nonlinearity Error Typically 0.2% at 100 kHz

D Stable 200 ppm/°C Temperature Coefficient

D Low-Profile Lead (Pb) Free and RoHS

Compliant Surface-Mount Package

Description

The TSL230RD, TSL230ARD, and TSL230BRD programmable light-to-frequency converters combine a

configurable silicon photodiode and a current-to-frequency converter on single monolithic CMOS integrated

circuit. The output can be either a pulse train or a square wave (50% duty cycle) with frequency directly

proportional to light intensity. Device sensitivity is selectable in three ranges, providing two decades of

adjustment. The full-scale output frequency can be scaled by one of four preset values. All inputs and the output

are TTL compatible, allowing direct two-way communication with a microcontroller for programming and output

interface. The output enable (OE) places the output in the high-impedance state for multiple-unit sharing of a

microcontroller input line.

The devices are available with absolute output frequency tolerances of ±10% (TSL230BRD), ±15%

(TSL230ARD), and ±20% (TSL230RD). They have been temperature compensated for the ultraviolet-to-visible

light range of 320 nm to 700 nm and respond over the light range of 320 nm to 1050 nm. The devices are

characterized over the temperature range of −25°C to 70°C.

Functional Block Diagram

Output

Current-to-Frequency

Light

Photodiode Array

Converter

S0 S1

S2 S3

The LUMENOLOGY r Company

Texas Adva^rnced Optoelectronic Solutions Inc.

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

www.taosinc.com

12 3 4 5 6 7...14

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