Digital output ROIC with single slope ADC for cooled infrared applications

Date

2017-04-01

Author

Akyurek, Fatih
Bayram, Barış

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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The objective of this research is to develop an ADC stage integrated into ROIC which enables ROIC to have digital output. Digital output method isolates noise caused by outside mediums. At the system level, removal of the ADC proximity card reduces system complexity and volume of the IDDCA system which is important for avionic and missile applications. It also reduces the system cost associated with external ADC components. A digital output ROIC utilizing single slope ADC is fabricated using 0.18 A mu m CMOS technology. ADC has been proven to be functional, and infrared images are sampled with the fabricated ROIC and a LWIR detector. Implemented ADC has 12 bits of resolution supporting 27 kS/s sampling speed. It also has programmable high speed mode that extends readout speed to more than 100 kS/s with 10 bits resolution or 50 kS/s with 11 bits resolution. Power consumption is less than 40 A mu W per column ADC.

Subject Keywords

Ramp generator, Bist

URI

https://hdl.handle.net/11511/41063

Collections

Department of Electrical and Electronics Engineering, Article