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Article: Analog-digital ICs provide versatility: semicustom circuits.
- Article from:
- EDN
- Article date:
- March 1, 1990
- Author:
CopyrightCOPYRIGHT 1990 Reed Business Information, Inc. (US). This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Analog-digital ICs provide versatility
Mixed-mode semicustom ICs combine analog and digital functions on one chip, freeing system designers from the inherent limitations of early semicustom arrays and the cost penalty of 2-chip sets. Although early mixed-mode chips are still available and often are useful, today's devices generally offer superior performance.
When they first appeared on the market nearly twenty years ago, semicustom ICs were organized into two basic groups--gate arrays and linear arrays--and choosing a suitable device was a relatively simple task. Semicustom chips still come in these two basic groups, but choosing the right chip requires ...