t
TSL250, TSL251, TSL252
LIGHT TO VOLTAGE OPTICAL SENSORS
t
TAOS020A 鈥?JUNE 2001
D
Monolithic Silicon IC Containing
D
D
Photodiode, Operational Amplifier, and
Feedback Components
Converts Light Intensity to a Voltage
High Irradiance Responsivity, Typically 80
mV/(mW/cm
2
) at
l
p
= 880 nm (TSL250)
Compact 3鈥搇eaded Clear Plastic Package
Single Voltage Supply Operation
PACKAGE
(FRONT VIEW)
1
2
3
D
D
D
Low Dark (Offset) Voltage....10mV
D
Low Supply Current......800
mA
Typical
D
Wide Supply-Voltage Range.... 3 V to 9 V
GND V
DD
OUT
DISCONTINUED DEVICES
鈥?these devices have been superceded by new
devices and are being discontinued. The TSL250, TSL251, and TSL252 have
been replaced by the TSL250R, TSL251R, and TSL252R, respectively.
Description
The TSL250, TSL251, and TSL252 are light-to-voltage optical sensors, each combining a photodiode and a
transimpedance amplifier (feedback resistor = 16 M鈩? 8 M鈩? and 2 M鈩?respectively) on a single monolithic IC.
Output voltage is directly proportional to the light intensity (irradiance) on the photodiode. These devices use
a 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
t
t
Copyright
E
2001, TAOS Inc.
1
next