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DAP-type socket assembly



The C7950 series is a DAP type socket assembly designed for 28 mm (1-1/8") diameter, head-on and side-on photomultiplier tubes (PMT). The C7950series socket assembly incorporates a regulated high voltage power supply, an active voltage divider and a current-to-voltage conversion circuit, alongwith an amplifier having a wide bandwidth (0 Hz to 5 MHz). The C7950 series converts the small-current high-impedance output of the PMT into a low-impedance voltage output with a conversion factor of 0.3 V/uA.The C7950 series enables simple yet stable PMT operations by supplying +/-15 V and connecting to control voltage (0 V to +3.6 V) for high voltage adjustments.

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Type High Voltage Power Supply Socket Assembly with Transimpedance Amplifier (DAP type)
Applicable PMT 28 mm dia. Head-on type
Input Voltage ±15±1 V
Max. Input Voltage ±18 V
Max. Input Current +65 / -20 mA
[PMT] Linear DC Output Current Min. 8 (Load resistance=50 Ω) μA
[HV Power Supply] Output Voltage Range 0 to -900 V
[HV Power Supply] Line Regulation Against ±1 V Input Charge Typ. ±0.03 %
[HV Power Supply] Output Voltage Control 0 V to +3.6 V
[HV Power Supply] Output Voltage Programming Response Typ. 80 ms
[HV Power Supply] Temperature Coefficient Typ. ±0.03 %/℃
[Amp] Frequency Bandwidth (-3 db) DC to 5 MHz
[Amp] Current to Voltage Conversion Factor 0.15 (Load resistance=50 Ω) V/uA
[Amp] Max. Output Signal Voltage +1.2 (Load resistance=50 Ω) V
[Amp] Output Signal Offset Voltage Typ. ±10 mV
[Amp] Output Signal Ripple/Noise 10 mVrms (Typ.)
Operating Ambient Temperature 0 to +40 ℃
Storage Temperature -15 to +60 ℃
Weight Typ. 60 g

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