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TSL265
HIGH SENSITIVITY NEAR INFRARED
LIGHT TO VOLTAGE CONVERTER
TAOS016 鈥?SEPTEMBER 1999
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High Sensitivity
Rail-to-Rail Output
Single Voltage Supply Operation
Monolithic Silicon IC Containing
Photodiode, Operational Amplifier, and
Feedback Components
Converts NIR Light Intensity to Output
Voltage
Plastic Package
Wide Supply-Voltage Range
Low Supply Current
PACKAGE
(TOP VIEW)
1
2
3
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Compact 3-Leaded Infrared-Transmissive
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GND V
DD
OUT
Description
The TSL265 is a high-sensitivity light-to-voltage optical converter that combines a photodiode and a
transimpedance amplifier on a single monolithic CMOS integrated circuit. Output voltage is directly proportional
to near infrared (NIR) light intensity (irradiance) on the photodiode. The TSL265 has a transimpedance gain of
3.2 G鈩? Bandwidth and signal-to-noise ratio are optimized by means of a patented design that minimizes the
effects of photodiode capacitance. It uses design techniques that provide improved offset voltage stability and
low power consumption, and is supplied in a 3-lead visible-light-blocking sidelooker package with an integral
lens.
The TSL265 is intended for NIR light-sensing applications requiring ultrahigh sensitivity where a linear voltage
output is desired.
Functional Block Diagram
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Voltage
Output
Terminal Functions
TERMINAL
NAME
GND
OUT
V
DD
NO.
1
3
2
Output voltage
Supply voltage
DESCRIPTION
Ground (substrate). All voltages are referenced to GND.
www.taosinc.com
Texas Advanced Optoelectronic Solutions Inc.
800 Jupiter Road, Suite 205
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Plano, TX 75074
S
(972) 673-0759
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Copyright
漏
2000, TAOS Inc.
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