AD8079
+VS
IN
RT
50Ω
OUT
–VS
Inverting Configuration
+VS
C1
C3
0.1µF
10µF
C2
0.1µF
C4
10µF
–VS
Supply Bypassing
+VS
50Ω
OUT
IN
RT
–VS
*SEE TABLE I
Noninverting Configuration (G = +2)
TRIM
200Ω AD8079B
IN
RT
OUT
Optional Gain Trim (G = +2 → +2.2)
TIE INPUT PINS
TOGETHER
+VS
TO MINIMIZE
PEAKING
IN
RT
–VS
OUT
Noninverting Configuration (G = +1)
Figure 29. Inverting and Noninverting Configurations
Table I. Recommended Component Values
Component
–1
+1
RT (Nominal) (Ω)
53.6
49.9
Small Signal BW (MHz)
220
750
0.1 dB Flatness (MHz)
50
100
+2/+2.2
49.9
260
50
Figure 30. Board Layout (Silkscreen)
Figure 31. Board Layout (Component Layer)
Figure 32. Board Layout (Solder Side; Looking Through
the Board)
–10–
REV. A