Title :
A family of radiation tolerant ASICs for spacecraft monitoring and control operations
Author :
Martin, Mark N. ; Meitzler, Richard C.
Author_Institution :
Johns Hopkins Univ. Appl. Phys. Lab., Laurel, MD, USA
Abstract :
In this paper, we detail the design, fabrication, and test of a set of architecturally related ASICs implemented using radiation hardened by design (RHBD) techniques. The ASICs are notable for their reuse of common components and interfaces, thereby dramatically reducing design time and cost. These chips perform relatively simple functions such as data conversion, multiplexing, and digital I/O under the control of a simple I2C bus. The intended applications include spacecraft functions such as telemetry sensing and aggregation, digitally controlled potentiometers, etc. The ASICs were fabricated as part of a single reticle and each has been tested and found functional.
Keywords :
aircraft control; application specific integrated circuits; avionics; data conversion; input-output programs; multiplexing; potentiometers; radiation hardening (electronics); reticles; space telemetry; system buses; I2C bus; RHBD techniques; architecturally related ASIC; data conversion; digital I/O; digitally controlled potentiometers; multiplexing; radiation hardening; radiation tolerant ASIC; single reticle; spacecraft control operations; spacecraft functions; spacecraft monitoring; telemetry aggregation; telemetry sensing; Application specific integrated circuits; Approximation methods; Clocks; Multiplexing; Registers; Resistance; Space vehicles;
Conference_Titel :
Aerospace Conference, 2012 IEEE
Conference_Location :
Big Sky, MT
Print_ISBN :
978-1-4577-0556-4
DOI :
10.1109/AERO.2012.6187236
