Testing strategies for large-array controllers: the MONSOON approach

The advent of large focal planes requiring many signal channels has exacerbated the problems associated with guaranteeing detector controller performance. The performance specifications for large focal plane controllers includes both 'per channel' requirements such as noise, linearity, dynamic range, etc. and 'system' requirements such as channel cross talk, gain matching, etc. To assess these performance parameters and fully characterize the controller before integration to a focal plane, the MONSOON team has adopted a testing methodology that is based on industry standard practices. This adoption has provided a consistent testing method that produces repeatable results and allows full characterization of the controller performance. This approach will provided a tool to assist in predicting focal plane performance before integration and establishes base line performance values for subsequent detector optimization efforts.