Product documents
pdf format
CR-110-R2.2
CR-111-R2
CR-112-R2.1
CR-113-R2.1
CR-200-XX-R2.1
CR-210-R0
LTSpice models
LTSpice models exist for many of Cremat's charge sensitive preamplifier modules and shaping amplifier modules.
LTspice is freeware computer software implementing a SPICE simulator of electronic circuits, produced by semiconductor manufacturer Linear Technology, now part of Analog Devices. You can learn more about this software and download it here. The LTSpice models offered here were created by LTSpice version XVII.
While the schematic diagrams used in the LTSpice models are not the schematics of the Cremat modules, the LTSpice models reasonably reflect the behavior of the Cremat modules.
Each of the links below will download a ZIP file. Most of them will contain two files: a schematic file (*.asc) and a symbol file (*.asy).
The charge pulser circuits are useful as test inputs for the charge sensitive preamplifiers, as is shown in the first link: the overview.
Overview sample schematic (pulser, preamplifier, and shaping amplifier)
Overview sample schematic (pulser, preamplifier, shaping amplifier, and BLR)
0.01 picocoulomb charge pulser
0.1 picocoulomb charge pulser
1 picocoulomb charge pulser
10 picocoulomb charge pulser
CR-110-R2 charge sensitive preamplifier
CR-111-R2.1 charge sensitive preamplifier
CR-113-R2.1 charge sensitive preamplifier
CR-200-50ns-R2.1 shaping amplifier
CR-200-100ns-R2.1 shaping amplifier
CR-200-250ns-R2.1 shaping amplifier
CR-200-500ns-R2.1 shaping amplifier
CR-200-1us-R2.1 shaping amplifier
CR-200-2us-R2.1 shaping amplifier
CR-200-4us-R2.1 shaping amplifier
CR-200-8us-R2.1 shaping amplifier
CR-210-R0 Baseline Restorer
3D models (STEP)
The .zip files contain .STEP files and FreeCad .FCStd files.