Development of a Multi-GHz Sampling Capability at the University of Maine UHF Test Facility
Abstract
The primary goal is to upgrade an existing 200 MHz high-speed ADC test facility to obtain 20 GHz test and measurement capability. The modification is required to keep abreast of developing technology in ADC design, and in particular to support an ongoing effort in the ARPA HBT/ADC program to develop multi-GHz analog-to-digital converters. Also, innovative test methodologies are being developed to characterize and diagnose distortion mechanisms for state-of-the-art converters with sample rates above 1 GHz. An important accomplishment is the development of diagnostic test procedures which may be used on fully packaged components. Normally it is not practical to probe internal points in high-speed circuits - due to loading and unloading transmission line effects - and so external diagnostic procedures are very desirable. Under this contract we have shown how phase plane error functions can be built and interpreted to estimate specific ADC architecture effects. Additionally, this work has shown that the same set of calibration data can be used to estimate different features through the appropriate choices of basis functions related to specific ADC architectures. Fast Orthogonal Search methods were developed to assist in the selection of the most sensitive error basis functions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 19, 2001
- Accession Number
- ADA388404
Entities
People
- Donald M. Hummels
- Fred Irons
Organizations
- University of Maine