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Slew rate verification for wideband amplifiersThe taming of the slew
Introduction
Slew rate defines an amplifier’s maximum rate of output excursion. This specification sets limits on undistorted bandwidth, an important capability in A/D driver applications. Slew rate also influences achievable performance in D/A output stages, filters, video amplification and data acquisition. Because of its importance, amplifier slew rate must be verified by measurement. Deriving a measurement approach requires understanding slew rate’s relationship to amplifier dynamics.
Amplifier dynamic response
Figure 37.1 shows that amplifier dynamic response components include delay, slew and ring times. The delay time is small and is almost entirely due to amplifier ...
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