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Tail on square wave output

Category: Hardware
Product Number: ADA4932-1

The ADA4932-1 simulation and hardware show an ~1.6uS settling time with a 7mV signal on a 1.4V signal.  It is on both sides of the differential signal.  The input is being driven by a 20mA square wave differential input from an AD9744 DAC.  The signals are in the 100MHz range so there is nothing at that low a frequency.  This is seen on both the LTSPICE simulation and the hardware.