The design is based on a switchable array of six Maxim MAX4258 dual-channel video multiplexer-amplifiers.Gain-change settling time is lower than 30 nsec. The greater-than-100-MHz bandwidth of each stage results in an overall passband for all gain settings of greater than 60 MHz. The five lowpass-bandpass capacitors, C1 through C5, determine the lower end of the passband
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