TSL254R

LIGHT-TO-VOLTAGE OPTICAL SENSOR

TAOS071C − SEPTEMBER 2007

1

The LUMENOLOGY r Company

r

r

Copyright E 2007, TAOS Inc.

www.taosinc.com

Photodiode, Operational Amplifier, and

Feedback Components

Description

The TSL254R is a light-to-voltage optical sensor combining a photodiode and a transimpedance amplifier

(feedback resistor = 1 MΩ) on a single monolithic IC. Output voltage is directly proportional to the light intensity

(irradiance) on the photodiode. The device has improved amplifier offset-voltage stability and low power

consumption and is supplied in a 3-lead clear plastic sidelooker package with an integral lens. When supplied

in the lead (Pb) free package, the device is RoHS compliant.

Functional Block Diagram

Voltage

Output

+

−

Available Options

DEVICE

PACKAGE − LEADS

PACKAGE DESIGNATOR ORDERING NUMBER

TSL254R

0°C to 70°C

3-lead Sidelooker

S

TSL254R

TSL254R

0°C to 70°C

3-lead Sidelooker — Lead (Pb) Free

S

TSL254R−LF

TSL254R

0°C to 70°C

3-lead Surface-Mount Sidelooker — Lead (Pb) Free

SM

TSL254RSM−LF

Terminal Functions

TERMINAL

DESCRIPTION

NAME

NO.

DESCRIPTION

GND

1

Ground (substrate). All voltages are referenced to GND.

OUT

3

Output voltage

2

Supply voltage

r

r

Texas Advanced Optoelectronic Solutions Inc.

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

PACKAGE S

SIDELOOKER

(FRONT VIEW)

1

GND

2

3

OUT

PACKAGE SM

SURFACE MOUNT

SIDELOOKER

(FRONT VIEW)

1

GND

2

3

OUT