Title :
Hybrid infrared focal plane signal and noise model
Author :
Johnson, Jerris F.
Author_Institution :
Dept. of Electro.-Opt. Syst., Aerosp. Corp., Los Angeles, CA, USA
fDate :
1/1/1999 12:00:00 AM
Abstract :
A signal and noise model is presented for an infrared sensor with an advanced hybrid focal plane that uses a CMOS readout integrated circuit (ROIC). Part of the motivation for this work is to present a clear foundation for some of the well-known practical and useful rules that apply to infrared sensors in use today. The model shows explicitly how a correlated double sampler (CDS) eliminates kTC noise, explains the interesting dependence of output 1/f noise on integration and epoch times, and is generic enough to treat a large class of ROIC preamps. A sensor with a direct injection readout is treated as an example and user-friendly formulas are listed and used to calculate sensor signal and noise
Keywords :
1/f noise; CMOS integrated circuits; equivalent circuits; focal planes; hybrid integrated circuits; infrared detectors; integrated circuit modelling; integrated circuit noise; photodetectors; readout electronics; CMOS readout integrated circuit; IR sensor signal/noise model; correlated double sampler; direct injection readout; epoch time; hybrid infrared focal plane; infrared sensor; integration time; kTC noise elimination; output 1/f noise; preamps; sensor noise calculation; sensor signal calculation; Infrared sensors; Integrated circuit modeling; Integrated circuit noise; Optical noise; Photodetectors; Semiconductor device modeling; Semiconductor device noise; Sensor arrays; Signal analysis; Signal processing;
Journal_Title :
Electron Devices, IEEE Transactions on
