By Topic

Solar Intensity X-Ray Spectrometer (SIXS) ASIC onboard the ESA BepiColombo mission to Mercury

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

9 Author(s)
Khalid, F.F. ; STFC Rutherford Appleton Lab., Didcot, UK ; Prydderch, M.L. ; Morrissey, Q. ; Seller, P.
more authors

The new SIXS prototype ASIC has been designed for detecting and measuring solar X-rays in a Mercury orbit onboard BepiColombo. The SIXS detector consists of a CsI(Tl) core detector and 5 Silicon surface detectors. This new ASIC has undergone major modifications and has a new differential charge preamplifier without any pole zero cancellation and has a large dynamic range of 2,000e- to 1,500,000e-. The ASIC has 8 channels, each of which consists of a preamplifier, a CR-RC shaper, a peak detect hold, a comparator, a buffer, and a new 8 bit resistor string DAC which sets the programmable threshold for the comparator There are 6 channels for Si detectors with a shaping time of 1 ¿s and 2 channels for CsI detector with a shaping time of 3 ¿s, one of which has twice the gain to accommodate for low output efficiency of the detector. The channels are multiplexed to a single 10/11 bit SAR ADC which runs at a 10 MHz clock and additional on chip programmable phase shifted clocks and programmable Upper and Lower threshold voltages. This ASIC has been manufactured in a 0.35 ¿m CMOS process using enclosed geometry transistors. All digital logic in the ASIC including control and ADC logic use voting logic flipflops for SEU prevention.

Published in:

Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE

Date of Conference:

Oct. 24 2009-Nov. 1 2009