CUBE - The Charge Sensitive Preamplifier for Radiation Detectors
CUBE is a family of single-channel low-noise charge sensitive preamplifiers built in CMOS technology and exclusively tailored for radiation detectors. The circuit is designed to offer the best noise performance at short peaking times enabling low dead time and high-count rate measurements with excellent energy resolution. The CUBEs are available in different versions matching a wide range of X and Gamma ray detectors.
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)
- Rise time without detector: 7ns
- Power consumption: from 6 mW to 60 mW
Applications
- Silicon Drift Detectors (SDD)
- Silicon PIN diode (Si-PIN)
- High Purity Germanium (HpGE)
- CZT and CdTE detectors
CUBE Schematic
CUBE Spectroscopic performance
Technical Data
| CUBE Version | Polarity | Detector capacitance [pF] | Feedback capacitance [fF] | ENC (CUBE only, 3.6 eV/e) | Main application |
|---|---|---|---|---|---|
| PRE_016 | Negative (electrons) | < 0.25 | 25 | 3.3 e- @ 1 μs | Silicon Drift Detector (SDD) |
| PRE_031 | Negative (electrons) | < 0.5 | 25 | 3.3 e- @ 1 μs | HpGe, CdTe or CZT |
| PRE_033 | Negative (electrons) | <0.25 | 25 | 2.4e- @ 1us | Silicon Drift Detector (SDD) |
| PRE_037 | Positive (holes) | < 0.70 | 25 | 4.0e- @1us | Si-PIN, HpGe, Strip or Pixelated detectors, X-ray application |
| PRE_038 | Positive (holes) | 0.50 - 3.00 | 50 | 12.3 e- @1us | Si-PIN, HpGe, Strip or Pixelated detectors, X-ray application |
| PRE_039 | Positive (holes) | 3.00-10.00 | 50 | 20.2e- @1us | Si-PIN, HpGe, Strip or Pixelated detectors, X-ray application |
| PRE_040 | Negative (electrons) | 0.50-3.00 | 50 | 12.4e- @1us | HpGe, CdTe or CZT, Strip or Pixelated detectors, X-ray application |
| PRE_041 | Both (selectable) | 3.00-10.00 | 500 | 57 e- @1us | HpGe, HpGe Cylindrical, CdTe or CZT, Strip, Hard X-ray or Gamma application |
| PRE_042 | Both (selectable) | 0.50-3.00 | 500 | 35.5 e- @1us | HpGe, HpGe Cylindrical, CdTe or CZT, Strip, Hard X-ray or Gamma application |
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