TLC082-Q1_16 Datasheet, PDF (21/38 Pages) Texas Instruments – Wide-Bandwidth High-Output-Drive Single-Supply Operational Amplifiers

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Typical Applications (continued)
C1
V_I
R1
+
R2
_
C2
R_F
R_G
TLC082-Q1, TLC084-Q1
SLOS510D – SEPTEMBER 2006 – REVISED AUGUST 2016
R1 = R2 = R
C1 = C2 = C
Q = Peaking Factor
(Butterworth Q = 0.707)
f–3dB =
1
2 RC
( ) ^{RG =}
R_F
1
2− _Q
9.2.1.3 Application Curve
Figure 44. 2-Pole Low-Pass Sallen-Key Filter
Input
Output
Gain Vout / Vin = 1.471 V / 0.2 V = 7.335
Gain(db) = 20 Log (7.335) = 17.33 dB
and is 2.7 dB below 10 dB
Figure 45. Single Supply Application at 1-MHz Input Signal
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