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Readout IC Architectures and Strategies for Uncooled Micro-Bolometers Infrared Focal Plane Arrays: A Review.
Samuele Fusetto1, Antonio Aprile1, Piero Malcovati1
1Department of Electrical, Computer and Biomedical Engineering, University of Pavia, 2100 Pavia, Italy.
Sensors (Basel, Switzerland)
|March 11, 2023
Summary
Micro-bolometer-based Infrared Focal Plane Arrays (IRFPAs) are vital for thermal imaging. Their performance hinges on readout interface architecture, which is detailed herein.
Area of Science:
- Optoelectronics
- Sensor Technology
Background:
- Infrared Focal Plane Arrays (IRFPAs) are essential for applications like night vision, thermal imaging, and gas sensing.
- Micro-bolometer IRFPAs offer high sensitivity, low noise, and cost-effectiveness.
- The performance of IRFPAs is critically dependent on their readout interface.
Purpose of the Study:
- To introduce micro-bolometer-based IRFPAs and their readout interfaces.
- To discuss key performance evaluation parameters for these devices.
- To review readout interface architectures and design strategies over the past two decades.
Main Methods:
- Review of IRFPA technology and readout interface principles.
- Analysis of performance evaluation metrics.
- Examination of architectural strategies in readout chain design.
Main Results:
- Identification of critical performance parameters for IRFPAs.
- Overview of diverse readout interface architectures.
- Discussion of design evolution in readout chain blocks.
Conclusions:
- Readout interface design is paramount for micro-bolometer IRFPA performance.
- Understanding key parameters and architectural evolution is crucial for advancements.
- This review provides insights into optimizing IRFPA systems through readout interface development.
