t
TSL253, TSL254
PRECISION HIGH SPEED LIGHT TO VOLTAGE CONVERTER
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TAOS022 鈥?JANUARY 2000
D
Monolithic Silicon IC Containing
D
D
Photodiode, Operational Amplifier, and
Feedback Components
Converts Light Intensity to Output Voltage
High Irradiance Responsivity . . . Typically
60 mV/(碌W/cm
2
) at
位
p
= 880 nm (TSL253)
High Bandwidth
Compact 3-Leaded Clear Plastic Package
At 25擄C, V
DD
= 5 V
Single-Supply Operation
Wide Supply-Voltage Range . . . 2.7 V to
5.5 V
Low Supply Current . . . 600
碌A(chǔ)
Typical at
V
DD
= 5 V
SR PACKAGE
(FRONT VIEW)
1
2
3
D
D
D
Low Dark (Offset) Voltage . . . 10 mV Max
D
D
D
GND V
DD
OUT
Description
The TSL253 and TSL254 are light-to-voltage optical converters, each combining a 1-mm-square photodiode
and a transimpedance amplifier (feedback resistor = 16 M鈩? and 1 M鈩?respectively) on a single monolithic IC.
Output voltage is directly proportional to the light intensity (irradiance) on the photodiode. These devices use
silicon-gate CMOS technology that provides improved amplifier offset-voltage stability and low power
consumption.
Functional Block Diagram
鈥?/div>
+
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
S
Plano, TX 75074
S
(972) 673-0759
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t
Copyright
漏
2000, TAOS Inc.
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