November 2013
Beginner to intermediate
722 pages
16h 37m
English
Content preview from Intuitive Analog Circuit Design, 2nd Edition
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Chapter 13
Review of Current Feedback Operational Amplifiers
Abstract
Current-feedback operational amplifiers (op-amps) are devices in which the main feedback path from output to input carries a current, and not a voltage, as in voltage-feedback op-amps. Current-feedback op-amps do not suffer from the gain–bandwidth product paradigm as do voltage-feedback op-amps, and can achieve very high bandwidths.
Keywords
Current feedback; gain bandwidth product; voltage feedback; current mirror; design example
“A wide-band direct-coupled transistor amplifier exhibits greatly improved settling time characteristics as the result of circuitry permitting the use of current feedback rather than voltage-feedback in order to reduce the sensitivity of settling time ...
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