Comparative study of linear multiplexer designs for a remote sensing application

In a project instigated by a proposed upgrade to the Airborne Visible and Infrared Imaging Spectrometer (AVIRIS) focal plane array assemblies, a set of multiplexers are being designed and fabricated. These circuits span the gamut of typical infrared multiplexer design, ranging from buffered direct injection, to transimpedance amplifiers, to source follower detector integrators. All are designed to be compatible with the existing AVIRIS detector assembly, and to be as electronically and mechanically inter-compatible as possible.