HEDS-1300 HP [Agilent(Hewlett-Packard)], HEDS-1300 Datasheet - Page 6

• Manufacturer Part Number: HEDS-1300
• Description: Optical Reflective Sensors
• Manufacturer: HP [Agilent(Hewlett-Packard)]

Figure 2. Relative Reflected
Photocurrent.
Figure 5. Typical Spectral Distribution
of LEDs.
REFERENCE
Figure 8. Sensor with Transimpedance Amplifier.
1.4
1.2
1.0
0.8
0.6
0.4
0.2
I
0
PLANE
F
600
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
640 680 720
I
F
4
6
5
– LED FORWARD CURRENT – mA
HEDS-1300
CASE, SUBSTRATE
WAVELENGTH – nm
10
HEDS-1200
LED
15
0 °C
25 °C
70 °C
HEDS-1300
20
REFLECTOR
760
HEDS-1200
25
800 840 880
30
35 40
-40 °C
25 °C
85 °C
D
D
P
S
45
920
50
3
2
Z
Figure 6. Relative Spectral Response
of HEDS-1200 and HEDS-1300
Sensors.
I
Figure 3. LED Forward Voltage vs.
Forward Current.
PT
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
1 µA
1.0
0.8
0.6
0.4
0.2
I
F
0
600
– FORWARD CURRENT (LOG SCALE)
10 µA 100 µA 1 mA
+
–
R
+5 V
F
LOW-PASS FILTERING
OF AMBIENT LIGHT
CAUSED BY RED LENS
WAVELENGTH – nm
V
700
O
TYP. PEAK
RESPONSIVITY
Re = 0.34 AMP/WATT
= R
HEDS-1300
F
x
|
V
HEDS-1200
I
PT
O
800
|
10 mA
NOTE: FOR V
BIN NUMBER
SENSOR
100 mA
900
2
3
4
5
6
7
8
O
Figure 4. Photocurrent Variation with
Distance.
Figure 7. Sensor Pulse Drive
Considerations. Max Tolerable Peak
Pulse Current vs. Pulse Duration.
(APPROX.) 1.9 – 2.4 VOLTS
RECOMMENDED VALUE
1.0
0.8
0.6
0.4
0.2
OR R
0
2.5
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
MSP RANGE
DISTANCE FROM REFERENCE PLANE
HEDS-1300
1
15 M
12 M
10 M
8.2 M
6.8 M
5.6 M
4.7 M
F
HEDS-1200
3.0 3.5 4.0
(OHMS)
ONLY
t
P
– PULSE DURATION (µs)
OF SENSOR – mm
10
HEDS-1300
HEDS-1300
4.5
ONLY
100
5.0 5.5 6.0
HEDS-1200
MSP RANGE
HEDS-1200
1000
4-27
6.5
10,000