SGM8063 Shengbang Microelectronics, SGM8063 Datasheet - Page 10

• Manufacturer Part Number: SGM8063
• Description: (SGM8061 - SGM8063) Rail-to-Rail Output CMOS Operational Amplifier
• Manufacturer: Shengbang Microelectronics

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The low pass filter shown in Figure 4 has a DC gain of ( - R
and the –3dB corner frequency is 1/2πR
is within the bandwidth of the amplifier. The Large values of
feedback resistors can couple with parasitic capacitance and
cause undesired effects such as ringing or oscillation in
high-speed amplifiers. Keep resistors value as low as possible
and consistent with output loading consideration.
Typical Application Circuits
Differential Amplifier
The circuit shown in Figure 3 performs the difference function.
If the resistors ratios are equal ( R4 / R3 = R2 / R1 ), then
V
Low Pass Active Filter
OUT
Figure 4. Low Pass Active Filter
= ( Vp – Vn ) × R
V
Vn
Vp
IN
Figure 3. Differential Amplifier
R1
R1
R3
Vref
R3 = R1 // R2
R4
2
SGM8061
SGM8061
/ R
R2
1
R2
+ Vref.
C
2
C. Make sure the filter
V
V
OUT
OUT
2
/ R
1
)
１０
Driving Video
The SGM806x can be used in video applications like in Figure 5
V
R
IN
G
G = 1 + R
Figure 5. Typical Video Driving
SGM8061
R
F
F
/ R
G
SGM8061/2/3
75Ω
75Ω
CABLE
75Ω
V
OUT
.