XGCSA - The smallest Charge Sensitive Amplifiers for radiation detectors

The XGCSA are the new XGLAB’s family of Charge Sensitive Amplifiers designed to read different types of solid-state photodetectors with selectable polarity. They are available in two different package options, QFN12 (Q) and PSOIC16 (S) and cover three different detector capacitance ranges.

Main characteristics

  • Polarity: electrons or holes collection, selectable
  • Supply voltages: ±2.5 V and -6 V
  • Detector capacitance: see Table 1
  • Feedback capacitance: 50 fF / 150 fF / 500 fF
  • ENC: 25e- @ 1µs
  • Reset: continuous or pulsed


  • X and Gamma rays spectroscopy
  • Particle physics experiments
  • PIN diodes
  • CdTe or CZT detectors
  • High purity germanium detectors
  • Strip detectors


CSA Functional block Block Diagram

CSA functional block

CSA Package Options

Technical Data

CUBE VersionPolarityDetector capacitance [pF]Feedback capacitance [fF]
CSA099Both (selectable)3.0 - 10.050
CSA100Both (selectable)> 10.050
CSA102Both (selectable)3.0 - 10.0150/500 (selectable)
CSA103Both (selectable)>10.0150/500 (selectable)

Contact us

Submitting this form you are accepting our Privacy Policy

News & Events


X-Ray Fluorescence (XRF) is a powerful analytical technique able to identify several elements in samples, eg Aluminum (Al), Chromium (Cr), steels elements and others It provides several advantages...

Learn more


On this March Equinox, we decided to point our heads towards the sky and start to learn a bit more about what we could observe if our eyes could see X and Gamma rays We asked to Riccardo Zito,...

Learn more

XGLAB Participate at DXC 2021

XGLAB is a proud sponsor of the Denver X-ray Conference DXC 2021...

Learn more