Design of a 10 K NbN A/D converter for IR focal plane array sensors

Author

Eaton, L.R. ; Durand, D.J. ; Sandell, R. ; Spargo, J.W. ; Krabach, T.

Author_Institution

TRW Inc., Redondo Beach, CA, USA

Volume

5

Issue

2

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

2457

Lastpage

2460

Abstract

We are implementing a 12 bit SFQ counting ADC with parallel-to-serial readout using our established 10 K NbN capability. This circuit provides a key element of the analog signal processor (ASP) used in large infrared focal plane arrays. The circuit processes the signal data stream from a Si:As BIB detector array. A 10 mega samples per second (MSPS) pixel data stream flows from the chip at a 120 megabit bit rate in a format that is compatible with other superconductive time dependent processor (TDP) circuits being developed. We will discuss our planned ASP demonstration, the circuit design, and test results.<>

Keywords

analogue-digital conversion; focal planes; infrared detectors; infrared imaging; niobium compounds; superconducting processor circuits; 10 K; 12 bit; 120 Mbit/s; IR focal plane array sensors; NbN; NbN A/D converter; SFQ counting ADC; Si:As; Si:As BIB detector array; analog signal processor; circuit design; parallel-to-serial readout; pixel data stream; superconductive time dependent processor circuits; Application specific processors; Cables; Circuits; Infrared detectors; Infrared sensors; Sensor arrays; Signal processing; Space technology; Surveillance; Temperature sensors;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.403088

Filename

403088