Dear Dennis...
EN-Genius Network's Dennis Feucht answers your design
queries in his new Circuit Design Clinic!
January, 2009
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EN-Genius Network presents a new, interactive
analog design service to readers! Send us your design questions (with
relevant data; schematics in JPEG or GIF, please) for some free
engineering advice from EN-Genius Network's circuit
consultant, Dennis Feucht, on how you might solve a design problem or
improve circuit performance. Submissions may be edited for clarity or
brevity, and submitters and their email addresses will remain anonymous
(unless otherwise indicated). Please send your questions to Dennis here.
Design Techniques for New Engineers: Amplifier Precision
by Dennis L. Feucht
Precision in analog circuit design refers to attainment of the ideal. This generally means that values for quantities should be accurate, close to the ideal values. Precision is the other major goal in analog circuit engineering besides speed or dynamic response and is usually of most concern in regard to static or quasistatic circuit operation.
Precision amplifier design identifies and constrains various sources of error. The accumulated effects of all the errors should be within the desired specification for the circuit. In this article, precision in amplification is demonstrated in the one-op amp differential amplifier (diff-amp) circuit.
...download complete article here (465 KB PDF)
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