OPA4650 Datasheet, PDF (12/14 Pages) Burr-Brown (TI) – Wideband, Low Power, Quad Voltage Feedback OPERATIONAL AMPLIFIER

TYPICAL APPLICATION
25Ω
1/4
OPA4650
V_IN
R_IN
1/4
OPA4650
High Pass
Output
1/4
OPA4650
Band Pass
Output
1/4
OPA4650
Low Pass
Output
FIGURE 8. State-Variable Biquadratic Filter.
J₈
–In_C
J₉
+In_C
R₁₇
R₁₆
R₂₀
R₁₉
R₃₂
R₁₈
C₂
2.2µF
C₁
0.1µF
9
4
1/4 8
10 ^OPA4650
R₂₁
1
+5V
2
GND
P1
R₁₅
J₇
Out_C
J₅
–In_B
J₄
+In_B
R₃₀
R₁₂
R₁₃
R₁₁
R₉
R₈
6
1/4
7
5 ^OPA4650
R₁₀
R₁₄
J₆
Out_B
J₁₁
–In_D
R₂₆
R₂₅
J₁₀
+In_D
R₂₃
R₂₂
R₃₁
R₂₇
13
1/4 14
12 ^OPA4650
11
R₂₄
C₃
0.1µF
C₄
2.2µF
R₂₈ J₁₂
Out_D
1
GND
2
–5V
P2
J₂
–In_A
J₃
+In_A
R₂₉
R₃
R₄
R₅
R₆
R₅
2
1/4
1
3 ^OPA4650
R₇
R₁
J₁
Out_A
FIGURE 9. Circuit Detail for the DEM-OPA465xP Board.
®
OPA4650
12