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| OPA2604 Datasheet, PDF (19/26 Pages) Burr-Brown (TI) – Dual FET-Input, Low Distortion OPERATIONAL AMPLIFIER | |||
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OPA2604
SBOS006A â SEPTEMBER 2000 â REVISED DECEMBER 2015
Typical Applications (continued)
8.2.8 Three-Pole Low-Pass Filter
R4
22kΩ
C3
R1
R2
R3
100pF
VIN
1
2
2.7kΩ
22kΩ
10kΩ
OPA2604
VO
C1
3000pF
C2
2000pF
fp = 20kHz
Figure 32. Three-Pole Low-Pass Filter
8.2.8.1 Design Requirements
The low-pass filter shown in Figure 32 is intended to meet the following design requirements:
⢠Third-order low pass filter response
⢠20-kHz cutoff frequency
⢠Inverting transfer function
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