ams Datasheet Page 1
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TSL250R, TSL251R,
TSL252R
Light-to-Voltage Optical Sensors
The TSL250R, TSL251R, and TSL252R are light-to-voltage optical
sensors, each combining a photodiode and a transimpedance
amplifier (feedback resistor = 16MΩ, 8MΩ, and 2.8MΩ
respectively) on a single monolithic IC. Output voltage is
directly proportional to the light intensity (irradiance) on the
photodiode. These devices have improved amplifier
offset-voltage stability and low power consumption and are
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.
Ordering Information and Content Guide appear at end of
datasheet.
Key Benefits & Features
The benefits and features of TSL250R, TSL251R, and TSL252R
light-to-voltage optical sensors are listed below:
Figure 1:
Added Value of Using TSL250R, TSL251R, and TSL252R
Monolithic silicon IC containing photodiode, operationa
l
amplifier, and feedback components
Converts light intensity to a voltage
Compact 3-lead clear plastic package
Single voltage supply operation
Low dark (offset) voltage... 10mV max
Low supply current... 1.1mA typical
Wide supply-voltage range... 2.7V to 5.5V
Replacements for TSL250, TSL251, and TSL252
RoHS compliant
Benefits Features
Enables Extremely Fast Response to Change Single Photo-Diode and Transimpedance Architecture
Enables Fast Response to Vi
sible Light in
R
ange of 400nm to 700nm Wavelengths
260μs Output Rise-Time Response (TSL250R)
Provides for High Sensitivity to Detect a Sma
ll
Ch
ange in Ligh
t
H
igh Irradiance Responsivity 137mV/(μW/cm
2
)
@ λp
= 635nm (TSL250R)
Provides Additional Sensitivity Advantag
es 2x
Gain Lens
General Description
Page 2 ams Datasheet
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TSL2 50R, TSL251R, TSL252R General Description
Functional Block Diagram
The functional blocks of this device are shown below:
Figure 2:
TSL250R, TSL251R, and TSL252R Block Diagram
Voltage
Output
+
ï