Noise Analysis of High Speed O...

NOISE ANALYSIS FOR HIGH SPEED OP AMPS

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NOISE ANALYSIS FOR HIGH SPEED OP AMPS
by Michael Steffes As system bandwidths have increased, an accurate estimate of the noise contribution for each element in the signal channel has become increasingly important. Many designers are not, however, particularly comfortable with the calculations required to predict the total noise for an op amp, or in the conversions between the different descriptions of noise. Considerable inconsistency between manufacturers in describing noise and, in some cases, incomplete specifications,