The first look at SB349, a 32&times;32 CTIA readout multiplexer for far IR focal-plane arrays

Jam Farhoomand; Jeff W. Beeman; Dzung Hoang

doi:10.1117/12.728668

26 September 2007 The first look at SB349, a 32×32 CTIA readout multiplexer for far IR focal-plane arrays

Jam Farhoomand, Jeff W. Beeman, Dzung Hoang

Proceedings Volume 6678, Infrared Spaceborne Remote Sensing and Instrumentation XV; 667805 (2007) https://doi.org/10.1117/12.728668
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

Abstract

Development of two-dimensional cryogenic readouts suitable for far infrared and submillimeter detectors is a key step in fabrication of large format far infrared focal-plane arrays. In collaboration with Raytheon Vision Systems, we have designed and fabricated the first 32x32 readout multiplexer, SB349, capable of operating at cryogenic temperatures as low as 1.7K. This readout is a capacitive-transimpedance amplifier multiplexed to eight outputs and is buttable on two sides to form a 64x64 mosaic array. It features eight selectable gain settings, AC coupling (auto zero) for better input uniformity, sample-and-hold circuitry, and provisions to block the readout glow. A special, 2-micron cryo-CMOS process has been adopted to prevent freeze out and ensure low noise and proper operation at deep cryogenic temperatures. An overview of the design and the results of the initial functionality tests on this device are reported in this paper.

Citation Download Citation

Jam Farhoomand, Jeff W. Beeman, and Dzung Hoang "The first look at SB349, a 32×32 CTIA readout multiplexer for far IR focal-plane arrays", Proc. SPIE 6678, Infrared Spaceborne Remote Sensing and Instrumentation XV, 667805 (26 September 2007); https://doi.org/10.1117/12.728668

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available