S8865-256 Datasheet, PDF (3/6 Pages) Hamamatsu Corporation – Photodiode array combined with signal processing circuit chip

Photodiode array with amplifier S8865-256, S8865-256G
s Electrical/optical characteristics [Ta=25 °C, Vdd=5 V, V (CLK)=V (RESET)=5 V, Vgain=5 V (High gain), 0 V (Low gain)]
Parameter
Symbol
Min.
Spectral response range
λ
Peak sensitivity wavelength
λp
-
Dark output High gain
-
Vd
voltage *⁶
Low gain
-
Saturation output voltage
Vsat
3
Saturation
High gain
-
exposure *⁷ Low gain
Esat
-
Photo
sensitivity
High gain
Low gain
S
-
-
Photo response non-uniformity *⁸ PRNU
-
High gain
-
Noise *⁹
N
Low gain
-
Output offset voltage *¹⁰
Vos
-
Typ.
200 to 1000
720
0.002
0.001
3.5
15
30
250
125
-
0.6
0.3
Vref
Max.
-
0.02
0.01
-
-
-
-
-
±10
-
-
-
Unit
nm
nm
mV
V
mlx · s
V/lx · s
%
mVrms
V
*6: Integration time ts=1 ms
*7: Measured with a 2856 K tungsten lamp
*8: When the photodiode array is exposed to uniform light which is 50 % of the saturation exposure, the Photo Response Non-
Uniformity (PRNU) is defined as follows:
PRNU = ∆X/X × 100 (%)
where X is the average output of all elements and ∆X is the difference between the maximum and minimum outputs.
*9: Measured with a video data rate of 50 kHz and Ts=1 ms in dark state
*10: Video output is negative-going output with respect to the output offset voltage.
s Output waveform of one element
DARK STATE
s Spectral response (measurement example)
(Ta=25 ˚C)
0.5
OUTPUT OFFSET
VOLTAGE
Vref=4.5 V Typ.
SATURATION OUTPUT
VOLTAGE
Vsat=3.5 V Typ.
SATURATION
STATE
1 V Typ.
GND
KMPDC0152EA
s Block diagram
EXTSP
4
Vms
5
Vdd
GND
6
7
0.4
0.3
0.2
0.1
0
200
400
600
800
1000 1200
WAVELENGTH (nm)
KMPDB0220EA
RESET 1
CLK 2
Vref 10
Vgain 11
TIMING GENERATOR
SHIFT REGISTER
HOLD CIRCUIT
CHARGE AMP ARRAY
3 TRIG
8 EOS
9 Video
Vpd 12
12345
PHOTODIODE ARRAY
N-1 N
KMPDC0153EA
3