iC-LSC
12-CHANNEL ACTIVE PHOTOSENSOR ARRAY
Rev C1, Page 5/7
ELECTRICAL CHARACTERISTICS
Operating conditions: VCC = 4...5.5 V, Tj = -40...125 °C, unless otherwise stated
Item Symbol
No.
Parameter
Conditions
Unit
Min.
Typ.
Max.
Total Device
001 VCC
Permissible Supply Voltage
Supply Current in VCC, dark
4
5.5
2
V
002
I(VCC)
E() = 0
Tj = 27 °C
λLED = λpk, E() = 0.1 mW/cm2
Tj = 27 °C
mA
mA
1.5
2.2
003
I(VCC)
Supply Current in VCC
4
mA
mA
004 Vc()hi
005 Vc()lo
Clamp-Voltage hi at all pins
Clamp-Voltage lo at all pins
I() = 4 mA
I() = -4 mA
11
V
V
-1.2
400
-0.3
Photosensors
101 E()mxr
Permissible Irradiance
λLED = λpk
0.2
mW/
cm2
mm2
102 Aph()
Radiant Sensitive Area
0.8 mm x 0.3 mm per sensor
0.24
103
λar
Spectral Application Range
Se(λar) = 0.25 x S(λ)max
950
nm
see Figure 1
104 λpk
105 S(λ)
Peak Sensitivity Wavelength
Spectral Sensitivity
see Figure 1
680
nm
λLED = λpk
0.45
A/W
Photocurrent Amplifiers
201 Iph()
Permissible Photocurrent
Operating Range
per sensor
0
200
120
250
nA
202 η()r
Photo Sensitivity
(light-to-voltage conversion ratio)
λLED = 740 nm
CR() = Iout() / Iph()
60
A/W
203 CR()
204 fc()hi
Photocurrent Gain
150
150
-15
200
200
Cut-off Frequency (-3 dB)
kHz
%
205 ∆Iout()m Channel Matching
206 ∆Iout()m Channel Cross Talk
deviation from mean value
+15
only one photosensor illuminated at the same
time
0
%
Current Source Outputs
301 Vout()
Permissible Output Voltage
(Operating Range)
1
VCC -
1.5
V
302
303
Iout()
Permissible Output Current
Vout() = 1 V ... VCC - 1.5 V
VCC = 4.5...5.5 V, Vout() = 1 V ... VCC - 2 V
-50
-200
µA
µA
tr(), tf()
Output Current Rise/Fall Time
Output Dark Current
Iph: 0 → 100 nA, 1T settling (63%);
Vout() = constant
0.7
0.8
µs
µs
CL = 30 pF, RL() = 10 kΩ
304 Iout()0
-0.6
+0.6
µA
Figure 1: Relative spectral response
Figure 2: Typical directional characteristics