OPA357 Datasheet, PDF (13/23 Pages) Burr-Brown (TI) – 250MHz, Rail-to-Rail I/O, CMOS Operational Amplifier with Shutdown

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The OPA357 can be used as an amplifier for RGB graphic
signals, which have a voltage of zero at the video black
level, by offsetting and AC-coupling the signal. See
Figure 5.
OPA357
OPA2357
SBOS235C − MARCH 2002− REVISED MAY 2004
V+
Red⁽¹⁾
R₁
R₂
V+
Green⁽¹⁾
R₁
R₂
604Ω
+3V
+
1µF 10nF
604Ω
1/2
OPA2357
604Ω
1/2
OPA2357
75Ω
75Ω
NOTE: (1) Source video signal offset
300mV above ground to accomodate
op amp swing−to−ground capability.
V+
Blue⁽¹⁾
R₁
R₂
604Ω
604Ω
604Ω
+3V
+ _{1µF 10nF}
75Ω
OPA357
Red
75Ω
Green
75Ω
Blue
75Ω
Figure 5. RGB Cable Driver
13