CUBE - The CMOS Preamplifier for Radiation Detectors

CUBE is a low-noise CMOS preamplifier exclusively tailored for radiation detectors. The circuit, a Charge Sensitive Amplifier (CSA) operated in pulsed reset mode, is designed to offer the best noise performance at short peaking times enabling high-count rate measurements with excellent energy resolution.

Main characteristics

  • Availability: bare die or on custom assembly
  • Physical size: 0.75 mm x 0.75 mm x 0.25 mm
  • Detector capacitance compatibility: from <0.25 pF to 10 pF
  • Reset mode: pulsed reset or continuous (with external resistor)

Applications

  • Silicon Drift Detectors (SDD)
  • Silicon PIN diode (Si-PIN)
  • High Purity Germanium (HpGE), CZT and CdTE detectors

The Bruker Cube product is manufactured and sold under licenses from Politecnico di Milano (patents JP2012-172331, JP2012-172332) and Oxford Instruments (patents EP2710733B, GB2491111B, US9397626 and JP6441675)

 

CUBE Schematic

CUBE Spectroscopic performance

Technical Data

CUBE VersionPolarityDetector capacitance [pF]Feedback capacitance [fF]ENC (CUBE only, 3.6 eV/e)Main application
PRE_016Negative (electrons)< 0.25253.3 e- @ 1 μsSilicon Drift Detector (SDD)
PRE_031Negative (electrons)< 0.5253.3 e- @ 1 μsHpGe, CdTe or CZT
PRE_033Negative (electrons)<0.25252.4e- @ 1usSilicon Drift Detector (SDD)
PRE_037Positive (holes)< 0.70254.0e- @1usSi-PIN, HpGe, Strip or Pixelated detectors, X-ray application
PRE_038Positive (holes)0.50 - 3.005012.3 e- @1usSi-PIN, HpGe, Strip or Pixelated detectors, X-ray application
PRE_039Positive (holes)3.00-10.005020.2e- @1usSi-PIN, HpGe, Strip or Pixelated detectors, X-ray application
PRE_040Negative (electrons)0.50-3.005012.4e- @1usHpGe, CdTe or CZT, Strip or Pixelated detectors, X-ray application
PRE_041Both (selectable)3.00-10.0050057 e- @1usHpGe, HpGe Cylindrical, CdTe or CZT, Strip, Hard X-ray or Gamma application
PRE_042Both (selectable)0.50-3.0050035.5 e- @1usHpGe, HpGe Cylindrical, CdTe or CZT, Strip, Hard X-ray or Gamma application

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