H7680 Просмотр технического описания (PDF) - Hamamatsu Photonics
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H7680 Datasheet PDF : 4 Pages
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Gated PMT modules
Gate Timing Chart
H7680
(Normally ON Type)
+3.5 V to +5 V at 50 Ω
GATE SIGNAL INPUT
0V
PMT OPERATION
OFF
ON
10 µs to ∞
100 ns to ∞
DELAY TIME : 200 ns MAX.
H7680-01
(Normally OFF Type)
+3.5 V to +5 V at 50 Ω
GATE SIGNAL INPUT
0V
10 µs to ∞
PMT OPERATION
OFF
ON
30 ns to ∞
DELAY TIME : 200 ns MAX.
Gate time equals the pulse width of input gate signal.
MINIMUM GATE "OFF" TIME: 100 ns
MINIMUM GATE "OFF" TIME: 30 ns
TPMOC0091EC
Output Examples
H7680
TIME
H7680-01
TIME
0V
0V
90 %
100 ns to ∞
50 %
30 ns to ∞
10 ns
20 ns
10 %
TPMOB0094EC
20 ns
10 ns
Block Diagram
SIGNAL OUTPUT: OUTPUT CURRENT (BNC)
PMT
GATE DRIVE
CIRCUIT
GATE POWER
SUPPLY CIRCUIT
VOLTAGE
DIVIDER
CIRCUIT
TIMING
CIRCUIT
HIGH VOLTAGE
POWER SUPPLY
CIRCUIT
GAIN
CONTROL
CIRCUIT
ERROR DETECTION
CIRCUIT
POWER SUPPLY CIRCUIT
INPUT VOLTAGE
54
CONTROL VOLTAGE INPUT
GATE PULSE INPUT (BNC)
ERROR LED
ERROR MONITOR
OVER-LIGHT MONITOR
REF. VOLTAGE OUTPUT
TPMOC0090EB
10 %
50 %
90 %
TPMOB0093EC
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