AD526 Figure 28. Gain Change Settling Figure 29. Gain Change Settling Time,* Gain Change 1 to 8 Time,* Gain Change 1 to 16 +15V –15V+15V –15V10 m F10 m F++10 m F10 m FTEKTRONIX++7000 SERIESSCOPE7A13PREAMPAD5265MHz BWG = 16OP37900 V G = 10V+10 m F100 V o = 160 3 e p-p+5VSHIELDNOTE: COAX CABLE 1 FT. OR LESS Figure 30. Wideband Noise Test Circuit +15V –15V10 m F10 m F++DATADYNAMICS+15V –15V5109(OR EQUIVALENT10 m F10 m FFLAT-TOP PULSE5k V ++GENERATOR)AD526TEKTRONIX1pF7000 SERIESVERROR2k V SCOPE+POT.V7A13ERROR 3 5AD711–PREAMP5k V 5MHz BW–AD35541pF+GRIN5k V 5.6k V 15.6k V IN626322.8k V RIN41.4k V 10 m F10 m F25pFT++SET = TMEAS2 – TX8715 V –5k V IN62631.25k V 16348 V AD3554GTX50 V +–15V +15V11.2 m s21.2 m s41.2 m s10 m F10 m F81.4 m s++161.8 m s–15V +15V Figure 31. Settling Time Test Circuit *Scope Traces are: Top: Output Transition Middle: Output Settling Bottom: Digital Input REV. D –7–