DA-TYPE SOCKET
ASSEMBLIES
DEC. 2000
C7247 SERIES
The C7247 series is a DA type socket assembly designed for 28 mm (1-1/8 inch) diameter side-on and head-on
photomultiplier tubes. The C7247 series socket assembly incorporates a voltage-divider circuit and a current-to-voltage
conversion circuit along with an amplifier having a wide bandwidth (0 Hz to 5 MHz).
The C7247 series converts the low-level, high-impedance current of a photomultiplier tube into a low-impedance
voltage output by a factor of 0.3 V/
µA.
Since the C7247 series employs an active voltage-divider circuit, it ensures an excellent DC linearity at low power
consumption.
FEATURES
•
Low power consumption
•
Low offset voltage
•
Wide frequency band
•
Compact and light weight
Parameter
Applicable Photomultiplier Tubes
C7247-01
C7247
28 mm Dia. Side-on
28 mm Dia. Head-on
R374, R2228, R5929, R6095, etc R928, R3788, R3896, R4220, etc
SPECIFICATIONS
Unit
–
–
Unit
V dc
V dc
˚C
˚C
MAXIMUM RATINGS
Parameter
Input Voltage for Amplifier
Supply Voltage for Divider
Operating Temperature
Storage Temperature
Value
±18
-1500
0 to +40
-15 to +60
C7247
±12
to
12
-400 to -900
219 (at HV=-900 V)
±15
a
-300 to -600
166 (at HV=-600 V)
C7247-01
GENERAL
Parameter
Input Voltage for Amplifier
Input Current for Amplifier (at
±15
V)
Recommended Supply Voltage for Divider
Divider Current
Current to Voltage Conversion Factor
Maximum Output Voltage (with no load resistor)
Output Voltage (with 50
Ω
load resistor)
Maximum Input Signal Current
(at 10 V output, HV=-1000 V with no load resistor)
Frequency Bandwidth (-3 dB)
Output Impedance
Offset Voltage
Output Noise Voltage
Total Power Consumption (at
±15
V)
Weight
Unit
V dc
mA Typ.
V dc
µA
Typ.
V/µA
V
V
µA
µA
DC
Pulse
0.3
10
3
33
33
0 Hz to 5 MHz
50
±3
9
558 (at HV=-900 V)
55
460 (at HV=-600 V)
50
–
Ω
mV Max.
mV rms. Typ.
mW Typ.
g Typ.
a
To be also practicable even with
±5
V of input supply voltage except for narrow output range (2 V max).
Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office.
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. ©2000 Hamamatsu Photonics K.K
HAMAMATSU [ HAMAMATSU CORPORATION ]
