TSL260R, TSL261R, TSL262R
INFRARED LIGHT-TO-VOLTAGE OPTICAL SENSORS
TAOS049E SEPTEMBER 2007
6
r
r
Copyright E 2007, TAOS Inc.
The LUMENOLOGY r Company
www.taosinc.com
APPLICATION INFORMATION
NOTE A: Pullup resistor extends linear output range to near V
DD
with minimal (several millivolts typical) effect on V
DARK
; particularly useful
at low V
DD
(3 V to 5 V).
TSL26xR
Sensor
Output
R
P
= 100 k?/SPAN>
V
DD
2
3
1
Figure 7. Pullup for Increased V
OM
OPTEK part number
TSL261R
Sensor
Output
50-k?/SPAN>
Threshold
5 V
2
3
1
+
100 ?/SPAN>
OP240
5 V
4
5 V
4.7 k?/SPAN>
10 k?/SPAN>
15 k?/SPAN>
LM393
1
8
3
2
15 k?/SPAN>
NOTE A: Output goes high when beam is interrupted; working distance is several inches or less. Intended for use as optical-interrupter switch
or reflective-object sensor.
Figure 8. Short-Range Optical Switch With Hysteresis