Citation: |
Hari Shanker Gupta, A S Kiran Kumar, M. Shojaei Baghini, Subhananda Chakrabarti, Sanjeev Mehta, Arup Roy Chowdhury, Dinesh K Sharma. Design of current mirror integration ROIC for snapshot mode operation[J]. Journal of Semiconductors, 2016, 37(10): 105001. doi: 10.1088/1674-4926/37/10/105001
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H S Gupta, A S K Kumar, M. S. Baghini, S. Chakrabarti, S Mehta, A R Chowdhury, D K Sharma. Design of current mirror integration ROIC for snapshot mode operation[J]. J. Semicond., 2016, 37(10): 105001. doi: 10.1088/1674-4926/37/10/105001.
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Design of current mirror integration ROIC for snapshot mode operation
DOI: 10.1088/1674-4926/37/10/105001
More Information
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Abstract
Current mirror integration (CMI) read out integrated circuit (ROIC) topology provides a low input impedance to photo-detectors and provides large injection efficiency, large charge handling capacity and snapshot mode operation without in-pixel opamps. The ROIC described in this paper has been implemented with a modified current mirror circuit, with matched PMOS pairs for detector input stage and its biasing. The readout circuit has been designed for 30×30μm2 pixel size, 4×4 array size, variable frame rate, 5 Mega pixel per second (Mpps). Experimental performance of the test chip has achieved 15 Me charge handling capacity, a high dynamic range of 83 dB, 99.8% linearity and 99.96% injection efficiency. The ROIC design has been fabricated in 3.3 V 1P6M UMC 180 nm CMOS process and tested up to 5 MHz pixel rate at room and at cryogenic temperature.-
Keywords:
- pixel pitch,
- readout integrated circuit (ROIC),
- cryogenics,
- snapshot,
- FPA,
- IR detectors
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References
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