Datasheet

Photosensor amplifier
C9051
Small on-board type current-to-voltage conversion amp
The C9051 is a current-to-voltage conversion amplifier specifically designed for low-light-level measurement using a photodiode (sold separately).
Features
Applications
Small on-board type for easy assembly
Low-light-level detection
Usable with photodiodes having large terminal
capacitance
Low-light-level optical power meters
DC light monitors
Conversion impedance: 1.0 × 108 V/A
Single +12 V supply voltage operation
Small board size: 50 (W) × 50 (H) × 19 (D) mm
Absolute maximum ratings (Ta=25 °C unless otherwise noted)
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 dew condensation
When there is a temperature difference between a product and the surrounding area in high humidity environment, dew condensation
may occur on the product surface. Dew condensation on the product may cause deterioration in characteristics and reliability.
Note: Exceeding the absolute maximum ratings even momentarily may cause a drop in product quality. Always be sure to use the
product within the absolute maximum ratings.
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1
Photosensor amplifier
C9051
Electrical and optical characteristics (Ta=25 °C, Vcc=+12 V)
Parameter
Conversion impedance
Frequency bandwidth
Input photocurrent range
Maximum output amplitude
Output offset voltage
Equivalent noise input current
Output noise voltage
Symbol
Tz
fc
Isc
Vo
Vos
IN
enp-p
Condition
C9051 board, -3 dB
*2
RL=1 kΩ
C9051 board
Without photodiode, f=1 Hz
Without photodiode,
full bandwidth
Min.
DC
0
4.0
-5
-
Typ.
1 × 108
-
Max.
16
40
5
5 × 10-13
Unit
V/A
Hz
nA
V
mV
A/Hz1/2
-
-
0.5
mVp-p
Output resistance
Maximum input capacitance
Maximum capacitive load
Current consumption
Supply voltage
Power supply ripple voltage
Ro
100
Ω
CIN
15
nF
CL
1000
pF
Icc
Without photodiode
20
mA
Vcc
+9
+12
+15
V
*3
Vcc RIPPLE *4
200
mVp-p
*2: When connecting a photodiode to the C9051, the cathode should be connected to the IN terminal of the 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 the C9051, set the power supply voltage within this range. A separate adapter plug will
be required for power input to the 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 the
C9051, always make sure the power supply output does not contain excessive ripple and noise.
Usable 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 datasheets for our
photodiodes.
Note: The C9051 cannot be used with multi-element photodiodes, photodiodes with preamplifier, APD (avalanche photodiodes), photo
IC diodes and reverse-biased photodiodes.
Connection example
AC adpter*
Oscilloscope
Large area photodiode
Low-light-level
detection
Anode
Voltmeter
Cathode
Shield
Photosensor amplifier C9051
Coaxial cable with BNC plug
(see "Typical connection to photodiode")
BNC cable E2573
(sold separately)
* Accessory
+5 V input A/D
Low-light-level
optical power meters
DC light monitors
Test/measurement
equipment
Serial conversion
output
PC, etc.
KACCC0179EB
2
Photosensor amplifier
C9051
Typical connection to photodiode
・To connect a photodiode to the C9051, use a coaxial cable
terminated with a BNC plug. (Keep the capacitance including the
cable capacitance and photodiode’s terminal capacitance from
exceeding 15 nF.)
・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.)
Coaxial cable with BNC plug
Solder
Photodiode
Anode
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.
Cathode
Connect to shield case
Shield case, etc.
KACCC0180EA
Dimensional outline (unit: mm)
50 ± 1
42 ± 0.5
Output
terminal
Photodiode photocurrent
input terminal
(85 ± 3)
Out
In
42 ± 0.5
(4 ×) ϕ3.2 thru-hole
(for board mounting)
2.0 max.
(19 ± 1)
50 ± 1
AC adapter jack DC +12 V IN
KACCC0116EA
Accessories
・Instruction manual
・AC adapter
3
Photosensor amplifier
C9051
Options (sold separately, unit: mm)
· BNC cable E2573
Cable: 1.5D-QEV
+50
1000 - 0
KACCC0334EA
Related information
www.hamamatsu.com/sp/ssd/doc_en.html
Precautions
· Disclaimer
Information described in this material is current as of June, 2016.
Product specifications are subject to change without prior notice due to improvements or other reasons. This document has been carefully prepared and the
information contained is believed to be accurate. In rare cases, however, there may be inaccuracies such as text errors. Before using these products, always
contact us for the delivery specification sheet to check the latest specifications.
The product warranty is valid for one year after delivery and is limited to product repair or replacement for defects discovered and reported to us within that
one year period. However, even if within the warranty period we accept absolutely no liability for any loss caused by natural disasters or improper product use.
Copying or reprinting the contents described in this material in whole or in part is prohibited without our prior permission.
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HAMAMATSU PHOTONICS K.K., Solid State Division
1126-1 Ichino-cho, Higashi-ku, Hamamatsu City, 435-8558 Japan, Telephone: (81) 53-434-3311, Fax: (81) 53-434-5184
U.S.A.: Hamamatsu Corporation: 360 Foothill Road, Bridgewater, N.J. 08807, 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) 8152-375-0, Fax: (49) 8152-265-8
France: Hamamatsu Photonics France S.A.R.L.: 19, 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: Torshamnsgatan 35 16440 Kista, Sweden, Telephone: (46) 8-509-031-00, Fax: (46) 8-509-031-01
Italy: Hamamatsu Photonics Italia S.r.l.: Strada della Moia, 1 int. 6, 20020 Arese (Milano), Italy, Telephone: (39) 02-93581733, Fax: (39) 02-93581741
China: Hamamatsu Photonics (China) Co., Ltd.: B1201, Jiaming Center, No.27 Dongsanhuan Beilu, Chaoyang District, Beijing 100020, China, Telephone: (86) 10-6586-6006, Fax: (86) 10-6586-2866
Cat. No. KACC1080E13 Jun. 2016 DN
4
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