Qinghua Liang, Yanfeng Wei, Honglei Chen, Jing Guo, Ruijun Ding. Research of IRFPA ROIC for astronomy[J]. Infrared and Laser Engineering, 2024, 53(1): 20230364
- Infrared and Laser Engineering
- Vol. 53, Issue 1, 20230364 (2024)
Fig. 1. Structure of SFD circuit
Fig. 2. Circuit block diagram
Fig. 3. Structure of analog circuit
Fig. 4. Structure of OTA
Fig. 5. Analog signal chain and current bias diagram
Fig. 6. Structure of current bias
Fig. 7. Layout of corecell circuit
Fig. 8. Controlling time series of simulation(NDR=0)
Fig. 9. Controlling time series of simulation(NDR=1)
Fig. 10. Structure of SR latch
Fig. 11. Structure of NDR circuit 1
Fig. 12. Simulation result of NET1
Fig. 13. Structure of NDR circuit 2
Fig. 14. Simulation result of NET3
Fig. 15. Simulation result of INTRST(NDR=0)
Fig. 16. Simulation result of INTRST(NDR=1)
Fig. 17. Diagram of non-destructive readout function
Fig. 18. Relationship diagram between signal and time
Fig. 19. Relationship between output voltage and photocurrent
Fig. 20. Sample picture of IRFPA
Fig. 21. Test system of long integration time
Fig. 22. Average voltage of FPA vs integration time
Fig. 23. Dark current of 640×512 IRFPA
Fig. 24. Test results of dark current
Fig. 25. Dark current under different power consumption
Fig. 26. Dark current under different power consumption
Fig. 27. Signal voltage vs integration time
Fig. 28. Test result of circuit noise (5 fF)
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Table 1. Performance of IRFPA for international astronomical application
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Table 2. Dark current under different power consumption
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Table 3. Performance parameters of FPA
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