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| 型号： | ADA4665-2ARZ-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 8/20页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP GP R-R CMOS DUAL 8SOIC |
| 标准包装： | 2,500 |
| 放大器类型： | 通用 |
| 电路数： | 2 |
| 输出类型： | 满摆幅 |
| 转换速率： | 1 V/µs |
| 增益带宽积： | 1.2MHz |
| 电流 - 输入偏压： | 0.1pA |
| 电压 - 输入偏移： | 1000µV |
| 电流 - 电源： | 290µA |
| 电流 - 输出 / 通道： | 30mA |
| 电压 - 电源，单路/双路(±)： | 5 V ~ 16 V，±2.5 V ~ 8 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 带卷 (TR) |
ADA4665-2
Rev. 0 | Page 16 of
20
ADA4665-2
07
65
0-
05
7
1/2
+VSY
–VSY
R1
22.5k
R2
22.5k
C1
1nF
C2
0.5nF
VOUT
VIN
Figure 57. Two-Pole Low-Pass Filter
When R1 = R2 and C1 = 2C2, the values of Q and the cutoff
frequency are calculated as follows:
)
(
R2
R1
C2
+
C2
C1
R2
R1
Q =
2
R1 R2 C1 C
f
c
π
=
2
1
10
0
–10
–20
–30
–40
–50
–60
100
1k
10k
100k
1M
FREQUENCY (Hz)
GA
IN
(
d
B
)
07
65
0-
05
8
Figure 58. Low-Pass Filter: Gain vs. Frequency
Figure 59 shows a two-pole high-pass filter, with cutoff frequency
at 10 kHz and quality factor, Q, of 1/√2.
ADA4665-2
07
65
0-
05
9
1/2
+VSY
–VSY
R1
22.5k
R2
45k
C1
0.5nF
C2
0.5nF
VOUT
VIN
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:
)
(
C2
C1
R1
C2
C1
R2
R1
Q
+
=
C2
C1
R2
R1
f
c
π
=
2
1
0
–10
10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
G
A
IN
(
d
B
)
07
65
0-
0
60
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
Figure 60. High-Pass Filter: Gain vs. Frequency
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