Real-Time Non-Uniformity Correction without TEC for Microbolometer Array

This paper describes a new readout integrated circuit and non-uniformity correction (NUC) method that ensures the bolometer array has low over wide operating temperature range without thermoelectric cooler (TEC). The proposed NUC minimizes memory required for signal processing, making it suitable compact power-efficient portable infrared cameras. It corrects aging phenomenon through start-up calibration non-uniformities TEC during operation mode. process mode uses pixel-level analog-to-digital converter to enable real-time NUC. A 0.18 μm standard CMOS is applied frame rate approximately 14.3 Hz. demonstrates excellent uniformity with of less than 0.12% (−20 50 °C).