6th Generation Avionics

The Spacepix is a revolutionary ASIC designed for wide range of space radiation measurements. It can be employed as a highly miniaturized radiation detector with radiation identification capability for advanced radiation detection and early warning systems.

Key features

Directly sensitive to galactic cosmic rays, solar wind and trapped radiation electrons and protons:
Proton energy detection threshold of 1 MeV
Electron energy detection threshold of 60 keV
Particle identification capability by the detector hit signature
With a neutron conversion layer, (it can be made) sensitive to fast neutrons

ASIC bare die dimensions 4 x 4.5 mm2
Depleted layer thickness 10 to 30 μm, depending on bias voltage and application


180 nm SoI technology:
A high degree of SEU tolerance thanks to the separate sensor and electronics parts
1.8 V voltage levels for low power consumption (300 mW)
Operates up to TID levels of 1 Mrad

4096 channels arranged in a matrix of 64 x 64 pixels:
Each pixel has dedicated electronics for hit counting and energy measurement
Temperature sensors for temperature measurement
Internal energy and threshold calibration

Fast column ADCs:
10-bit ADCs in 64 columns for deposited energy measurement

ADC speed 5 MSPS, theoretical ASIC detection limit of 320 Mhits per second

Fully custom design with no IP liabilities

Comprehensive IO / Payload Support:
Fast LVDS and SPI interface for easy interfacing with the microcontrollers (LVDS maximum frequency of 500 MHz, SPI maximum communication speed of 25 MHz, Hit signal for autotrigger and multi-ASIC sychronization)

Each pixel can be configured to work in a hit counting mode or energy deposition mode

Internal DACs for setting working point of every channel

Possibility of ASIC stacking:
It is possible to build a beam telescope with multiple SpacePix ASIC

ASIC technology mission background:

The Nobel Prize in Physics 2013 was awarded jointly to François Englert and Peter W. Higgs “for the theoretical discovery of a mechanism that contributes to our understanding of the origin of mass of subatomic particles, and which recently was confirmed through the discovery of the predicted fundamental particle, by the ATLAS and CMS experiments at CERN’s Large Hadron Collider”.



Download datasheed in PDF:

6th Generation Avionics