TSL238T
TSL238T is HIGH-SENSITIVITY LIGHT-TO-FREQUENCY CONVERTER manufactured by TAOS.
Description
The TSL238T light-to-frequency converter bines a silicon photodiode and a current-to-frequency converter on a single monolithic CMOS integrated circuit. Output is a square wave (50% duty cycle) with frequency directly proportional to light intensity (irradiance) on the photodiode. The digital output allows direct interface to a microcontroller or other logic circuitry. Output enable (OE) places the output in a high-impedance state for multiple-unit sharing of a microcontroller input line. The device has been temperature pensated for the ultraviolet-to-visible light range of 320 nm to 700 nm and responds over the light range of 320 nm to 1050 nm. The TSL238T is characterized for operation over the temperature range of
- 40°C to 85°C and is supplied in a pact 4-lead surface-mount package that is lead (Pb) free and Ro HS pliant.
Functional Block Diagram
Light
Photodiode
Current-to-Frequency Converter
Output
Available Options
DEVICE TSL238T
- 40°C to 85°C
PACKAGE
- LEADS 4-lead Low Profile Surface Mount
PACKAGE DESIGNATOR ORDERING NUMBER T TSL238T
Terminal Functions
TERMINAL
NAME
T PKG NO.
OE 1
TYPE
DESCRIPTION
Power supply ground (substrate). All voltages are referenced to GND. Enable for f O (active low). Output frequency. Supply voltage.
The
LUMENOLOGY r pany
Texas
Advarnced
Optoelectronic
Solutions
Inc.
1001 Klein Road S Suite 300 S Plano, TX 75074 S (972r) 673-0759 .taosinc.
Copyright E 2007, TAOS Inc. 1
Technical coantmesnt As Gtill valid
TSL238T HIGH-SENSITIVITY LIGHT-TO-FREQUENCY CONVERTER
TAOS080G
- DECEMBER 2007
Absolute Maximum Ratings over operating free-air temperature range (unless otherwise...
