ESA GNC Conference Papers Repository
Evaluation results on HAS3, next generation cmos image sensor for AOCS star tracking
This paper presents the results of the characterization and radiation campaign of HAS3, a CMOS image sensor targeting Attitude and Orbit Control Systems (AOCS). The image sensor is being developed in collaboration with the European Space Agency as a next generation to ON Semiconductors' STAR250, STAR1000 and HAS2 products. The HAS3 has been processed in a 0.18 um CMOS process to bring the latest advances in pixel and imager technology to the field of High Accuracy Star Trackers and has been evaluated in accordance with the ESCC-9020 specification. The image array consists of 1280 x 1280 pixels in an 11x11 µm2 pitch and is designed to be radiation tolerant. The sensor is capable of capturing full resolution frames at 10fps in both rolling and global shutter modes, converted by on-chip column parallel 12-bit A/D converters. The sensor data interface is based on LVDS while the external control interface gives the user access to all relevant internal controls to have full flexibility and secure reliable operation during space flights. The image readout circuitry is designed with single event upset and latch-up resistant TMR (Triple Mode Redundant) circuits. This work presents the results from the irradiation tests for displacement damage and SEE as well as the general performance characterization results. Additionally, the results of the development of the hermetic package are presented.