Datasheet

AD8065/AD8066
Rev. J | Page 26 of 28
VIDEO BUFFER
The output current capability and speed of the AD8065 make it
useful as a video buffer, shown in Figure 61.
The G = +2 configuration compensates for the voltage division
of the signal due to the signal termination. This buffer maintains
0.1 dB flatness for signals up to 7 MHz, from low amplitudes up
to 2 V p-p (see Figure 7). Differential gain and phase have been
measured to be 0.02% and 0.028°, respectively, at ±5 V supplies.
+V
S
–V
S
4.7μ F
0.1μ F
2.2pF
499Ω
249Ω
75Ω
499Ω
V
I
AD8065
4.7μ F
0.1μ F
75Ω
V
O
+
–
+
–
02916-E-061
Figure 61. Video Buffer