Features
Applications
M O D U L E
Photosensor amplifier
Small on-board type current-to-voltage conversion amp
C9051
PRELIMINARY DATA
Aug. 2002
C9051 is a current-to-voltage conversion amplifier specifically designed for low-light-level measurement using a photodiode (sold separately).
l Small on-board type for easy assembly
l Usable with photodiodes having large terminal
capacitance
l Conversion impedance: 1.0 10
8
V/A
l Single +12 V supply voltage operation
l Small board size: 50 (W) 50 (H) 19 (D) mm
l Low-light-level detection
l Low-light-level optical power meters
l DC light monitors
1
I Absolute maximum ratings
Parameter
Symbol
Value
Unit
Maximum voltage
Vcc Max.
+16
V
Operating temperature *
1
Topr
0 to +50
C
Storage temperature *
1
Tstg
-10 to +60
C
*1: No condensation
I Electrical and optical characteristics (Ta=25 C, Vcc=+12 V)
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Conversion impedance
Tz
-
1 10
8
-
V/A
Frequency bandwidth
fc
C9051 board, -3 dB
DC
-
16
Hz
Input photocurrent range
Isc
*
2
0
-
40
nA
Maximum output amplitude
Vo
R
L
=1 kW
4.0
-
-
V
Output offset voltage
Vos
C9051 board
-5
-
5
mV
Equivalent noise input current
I
N
Without photodiode, f=1 Hz
-
-
5 10
-13
A/Hz
1/2
Output noise voltage
e
np-p
Without photodiode,
full bandwidth
-
-
0.5mVp-p
Output resistance
Ro
-
100
-
W
Maximum input capacitance
C
IN
-
-
15nF
Maximum capacitive load
C
L
-
-
1000
pF
Current consumption
Icc
Without photodiode
-
-
20
mA
Supply voltage
Vcc
*
3
+9
+12
+15
V
Power supply ripple voltage
Vcc
RIPPLE
*
4
-
-
200
mVp-p
*2: When connecting a photodiode to C9051, the cathode should be connected to the IN terminal of C9051 and the anode
grounded. Photocurrent input from the photodiode will be negative with respect to the amplifier.
*3: If not using the AC adapter that comes with C9051, set the power supply voltage within this range. A separate adapter plug
will be required for power input to C9051.
*4: This is the maximum ripple allowed for the power supply when operated with all loads listed on the power supply specification
sheet, excluding switching noise that might appear superimposed on the ripple. When not using the AC adapter that comes
with C9051, always make sure that the power supply output does not contain excessive ripple and noise.
I
I
I
IUsable photodiodes
Any single-element photodiode with a terminal capacitance below 15 nF can be used.
In photometric applications requiring high accuracy, we recommend using metal package or ceramic package photodiodes.
For detailed information refer to individual data sheets for our photodiodes.
NOTE) C9051 cannot be used with multi-element photodiodes, photodiodes with preamplifier, APD (avalanche photodiodes),
photo IC diodes and reverse-biased photodiodes.
HAMAMATSU PHOTONICS K.K., Solid State Division
1126-1 Ichino-cho, Hamamatsu City, 435-8558 Japan, Telephone: (81) 053-434-3311, Fax: (81) 053-434-5184, http://www.hamamatsu.com
U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1) 908-231-0960, Fax: (1) 908-231-1218
Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49) 08152-3750, Fax: (49) 08152-2658
France: Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: 33-(1) 69 53 71 00, Fax: 33-(1) 69 53 71 10
United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44) 1707-294888, Fax: (44) 1707-325777
North Europe: Hamamatsu Photonics Norden AB: Smidesvgen 12, SE-171 41 Solna, Sweden, Telephone: (46) 8-509-031-00, Fax: (46) 8-509-031-01
Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39) 02-935-81-733, Fax: (39) 02-935-81-741
Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions.
Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. 2002 Hamamatsu Photonics K.K.
Photosensor amplifier
C9051
Cat. No. KACC1080E01
Aug. 2002 DN
2
(85 3)
OUTPUT
TERMINAL
PHOTODIODE PHOTOCURRENT
INPUT TERMINAL
(4 ) 3.2 THRU-HOLE
(FOR BOARD MOUNTING)
AC ADAPTER JACK DC + 12 V IN
42 0.5
(19 1)
2.0 MAX.
50 1
50 1
42 0.5
OUT
IN
KACCA0116EA
I Connection example
I Dimensional outline (unit: mm)
KACCC0179EA
PHOTOSENSOR AMPLIFIER C9051
COAXIAL CABLE WITH BNC PLUG
(See "Typical connection to photodiode")
LARGE AREA PHOTODIODE
DC + 12 V
BNC-BNC
COAXIAL CABLE
OSCILLOSCOPE
VOLTMETER
LOW-LIGHT-LEVEL
OPTICAL POWER METERS
DC LIGHT MONITORS
TEST/MEASUREMENT
EQUIPMENT
LOW-LIGHT-LEVEL
DETECTION
+ 5 V INPUT A/D
SERIAL CONVERSION
OUTPUT
PC, etc.
ANODE
CATHODE
SHIELD
ANODE
PHOTODIODE
SHIELD CASE, etc.
CONNECT TO SHIELD CASE
SOLDER
COAXIAL CABLE WITH BNC PLUG
CATHODE
KACCC0180EA
I Accessory
AC adapter
I Typical connection to photodiode
To connect a photodiode to C9051, use a coaxial cable terminated with a
BNC plug. The cable length (capacitance) should be less than 15 nF
including photodiode terminal capacitance.
Solder the photodiode leads to connect the tip of the cable wire. (See the
drawing on the right.)
Anode: Connect to the shield wire of the cable. (Make electrical connection
with the shield.)
Cathode: Connect to the core wire of the cable.
To improve measurement accuracy, provide a shield around the photodiode.
Do not use a cable any longer than necessary. (Keep the cable as short as
possible.)
NOTE) When using a photodiode whose cathode is internally connected to its
metal package, secure the photodiode with an insulating material
when shielding. Otherwise, signal current cannot be drawn when the
photodiode package is grounded.
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