A new readout structure with multiplexed output circuits for monolithic uncooled FPA

Abstract

In this paper, a new readout structure for monolithic uncooled focal plane array is proposed. The proposed readout structure contains several or dozens of readout integrated circuits modules and these modules work independently and output their pixel signals concurrently. For monolithic uncooled focal plane array, each module of readout integrated circuit can output its infrared sensing voltage signals at its maximum output speed, and the whole focal plane array has multiplexed outputs at a time. This kind of readout structure is appropriate for ultra-large-scale monolithic uncooled focal plane array and can be applied to future uncooled focal plane arrays.