difference amplifier
Also found in: Medical.
difference amplifier
[′dif·rəns ‚am·plə‚fī·ər] (electronics)
Also found in: Medical.
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References in periodicals archive
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The pre-amplifier stage sets the IA gain as the ratio of two resistance values, followed by the difference amplifier which operates differential to single-ended conversion.
The analog front end of the AD8450 includes a precision current sense programmable gain instrumentation amplifier (PGIA) that measures battery current, and a precision voltage sense programmable gain difference amplifier (PGDA) that measures battery voltage.
Then, two signals were combined with a difference amplifier to improve the signal-to-noise ratio.
For such systems, Analog Devices Inc, Wilmington, MA, has developed a difference amplifier suited not only for today's 14V and 24V automotive systems, but for the 42V environment, as well.
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