Datasheet > ADA4665-2ARZ1

ADA4665-2ARZ1

更新时间： 2022-02-26 10:18:52

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
21页	667K
描述
16 V, 1 MHz, CMOS Rail-to-Rail Input/Output Operational Amplifier

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ADA4665-2ARZ1 数据手册

ADA4665-2

1nF

22.5kΩ

Figure 59 shows a two-pole high-pass filter, with cutoff frequency

at 10 kHz and quality factor, Q, of 1/√2.

0.5nF

22.5kΩ

1/2

OUT

0.5nF

ADA4665-2

–V

1/2

OUT

45kΩ

ADA4665-2

Figure 57. Two-Pole Low-Pass Filter

–V

When R1 = R2 and C1 = 2C2, the values of Q and the cutoff

frequency are calculated as follows:

Figure 59. Two-Pole High-Pass Filter

When R2 = 2R1 and C1 = C2, the values of Q and the cutoff

frequency are calculated as follows:

R1R2C1C2

Q =

C2(R1+ R2)

R1R2C1C2

Q =

f_c=

R1(C1+C2)

2π R1 R2 C1 C2

f_c=

2π R1R2 C1C2

–10

–20

–10

–20

–30

–40

–50

–30

–40

–50

–60

–70

–80

–90

–100

–110

–120

–60

100

10k

100k

FREQUENCY (Hz)

Figure 58. Low-Pass Filter: Gain vs. Frequency

100

10k

100k

FREQUENCY (Hz)

Figure 60. High-Pass Filter: Gain vs. Frequency

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