A new readout structure for infrared (IR) focal plane arrays (FPA) is presented in this paper. By applying a new input circuit of current mirroring direct injection (CMDI), we realised a high-performance readout circuit for IRFPA. It was found from the SPICE simulation that the CMDI inherently makes the detector bias stable as well as has almost 100% injection efficiency to the readout circuit from the detector even for low RDA values because it has almost zero input impedance. Compared with previous other input circuits, it has also many advantages such as small area and low power consumption. A readout chip including the CMDI inputt circuit has been designed and fabricated for MWIR 1x128 staggered linear HgCdTe infrared detector arrays using 1.2 um single-poly-double-metal N-well CMOS technology. From the measurement results of the fabricated chip, the readout function was successfully verified at 77 K with 5 V supply voltage.
The aim of this report is to investigate the influence of changing the ambient temperature on behavior of simple and cascode current mirror. Moreover we'll investigate the influence of changing the temperature of each of the transistors separately with different temperature gradient configurations.
PL
Celem tego artykułu jest przeanalizowanie wpływu zmiany temperatury otoczenia na działanie układu prostego zwierciadła prądowego oraz zwierciadła kaskodowego. W artykule tym zostanie również przeanalizowane działanie układów zwierciadeł prądowych, w których każdy z tranzystorów pracuje w innej temperaturze.
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