MODULE
Photosensor amplifier
C9329
Digital output function, current-to-voltage conversion amplifier for amplifying very slight photocurrent with low noise
C9329 is a current-to-voltage conversion amplifier used to amplify very slight photocurrent from a photodiode with very low noise. Three ranges
of photocurrent detection sensitivity level (H, M, L) are selectable to match the input signal. C9329 operates on the built-in dry batteries so it can
be easily used anywhere. C9329 can be directly connected to a personal computer through the RS-232C interface allowing you to acquire high-
resolution (16-bit) digital output signals and use the data logger function.
Features
H : 1 × 10 (V/A)
M: 1 × 10
7
(V/A)
L : 1 × 10
5
(V/A)
l
Selectable operation modes (analog output / digital output)
l
Serial connection (RS-232C) with PC
l
Data logger function, low battery function
l
Operates on either dry battery or AC adapter
s
A bsolu te m axim um ratings (Ta=25
°C
)
P aram eter
M a xim um supply voltage
O perating tem perature *
1
S torage tem perature *
1
*1: N o condensation
S ym bol
V cc M a x.
Topr
Tstg
Applications
l
Three sensitivity ranges
9
l
Precision photometry
l
Laser monitors
l
Optical power meters
l
Low signal current preamplifiers
Value
+14
0 to +50
-10 to +60
U nit
V
°C
°C
s
E lectrica l a nd o ptica l characteristics (Ta=25
°C
)
P aram eter
C onversion
im pedance
Input photo
current range
Frequency
bandwidth (-3 dB )
H
M
L
H
M
L
H
M
L
S ym bol
Rf
C ondition
M in.
-
-
-
0
0
0
DC
DC
DC
-
-
±5
-
-
-
-
Typ.
1 × 10
9
1 × 10
7
1 × 10
5
-
-
-
16
1.6 k
1.6 k
-
-
-
-
100
-
-
M a x.
-
-
-
±5
±500
±50000
-
-
-
±0.5
25
-
0.5
-
5000
1000
U nit
V /A
Ic
nA
fc
-
-
V
FS
Vn
Ro
Ct
C
L
-
*2
Hz
m V /day
µ V /°C
V
m V p-p
Ω
pF
pF
-
O ffset drift
Tem perature drift
M a xim um output
am plitude
O utput noise
A nalog
output
O utput resistance
(M A N U A L
M a xim um input
MODE)
capacitance
M a xim um
capacitive load
D igital
output
(R E M O TE
MODE)
Interface
R
L
=2 kΩ
Frequency bandwidth *
3
O vershoot 30 % M ax.
R S -232C , 19200 bps, 8-bit, N on-parity,
2-stop bit
A /D conversion
-
V
±5
voltage range
A /D read cycle
-
-
50
-
ms
4
C onsum ption current
Is
*
-
-
20
mA
B attery lifetim e
-
R
L
> 10 kΩ *
4
-
50
-
hr
*2： W ithout photodiode. M a xim um output variation per day, m easured at 25
°C
after 10-m inute warm -up after power O N .
*3： A nalog output m easured after am plified 10 tim es (through 1.6 kH z low-pass filter).
*4： W ithout photodiode. W hen using one alkaline dry battery 6LR 61 (006P, 9 V ) in analog output.
1
HAMAMATSU [ HAMAMATSU CORPORATION ]
