A High-Frequency Field-Programmable Analog Array (FPAA) Part 1: Design

Authors:
Edmund Pierzchala;Marek A. Perkowski
Affiliations:
Department of Electrical Engineering, Portland State University, Portland, OR 97207-0751 edmundp@ee.pdx.edu;Department of Electrical Engineering, Portland State University, Portland, OR 97207-0751 mperkows@ee.pdx.edu
Venue:
Analog Integrated Circuits and Signal Processing - Special issue on field programmable analog arrays
Year:
1998

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Abstract

The design of a high-frequency field-programmable analog array (FPAA) is presented. The FPAA is based on a regular pattern of cells interconnected locally for high frequency performance. No switches of any kind are used in the signal path of a cell: programming of the functions, parameters, and interconnections is achieved solely by modifying cells’ bias conditions digitally. Limited global signal interconnections are also available for those application circuits which cannot be mapped onto locally-only interconnected structure. Key circuits of the FPAA have been fabricated in a CPI transistor-array bipolar technology.