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參數(shù)資料
| 型號： | AD9631ARZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 9/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC OPAMP VF ULDIST 70MA 8SOIC |
| 標準包裝： | 750 |
| 放大器類型： | 電壓反饋 |
| 電路數(shù)： | 1 |
| 轉(zhuǎn)換速率： | 1300 V/µs |
| -3db帶寬： | 320MHz |
| 電流 - 輸入偏壓： | 2µA |
| 電壓 - 輸入偏移： | 3000µV |
| 電流 - 電源： | 17mA |
| 電流 - 輸出 / 通道： | 70mA |
| 電壓 - 電源，單路/雙路(±)： | 6 V ~ 12 V，±3 V ~ 6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 8-SO |
| 包裝： | 帶卷 (TR) |
Data Sheet
AD9631/AD9632
Rev. D | Page 17 of 20
APPLICATIONS INFORMATION
The AD9631/AD9632 are voltage feedback amplifiers well
suited for applications such as photodetectors, active filters,
and log amplifiers. The wide bandwidth (320 MHz), phase
margin (65°), low current noise (2.0 pA/√Hz), and slew rate
(1300 V/s) of the devices give higher performance capabilities
to these applications over previous voltage feedback designs.
With a settling time of 16 ns to 0.01% and 11 ns to 0.1%, the
devices are an excellent choice for DAC I/V conversion. The
same characteristics along with low harmonic distortion make
them a good choice for ADC buffering/amplification. With
superb linearity at relatively high signal frequencies, the
OPERATION AS A VIDEO LINE DRIVER
The AD9631/AD9632 have been designed to offer outstanding
performance as video line drivers. The important specifications
of differential gain (0.02%) and differential phase (0.02°) meet
the most exacting HDTV demands for driving video loads.
Figure 64. Video Line Driver
ACTIVE FILTERS
The wide bandwidth and low distortion of the AD9631/
AD9632 are ideal for the realization of higher bandwidth active
filters. These characteristics, while being more common in
many current feedback op amps, are offered in the AD9631/
AD9632 in a voltage feedback configuration. Many active
filter configurations are not realizable with current feedback
amplifiers.
A multiple feedback active filter requires a voltage feedback
amplifier and is more demanding of op amp performance than
other active filter configurations, such as the Sallen-Key. In
general, the amplifier should have a bandwidth that is at least
10 times the bandwidth of the filter if problems due to phase
shift of the amplifier are to be avoided.
Figure 65 is an example of a 20 MHz low-pass multiple feedback
active filter using an AD9632.
Figure 65. Active Filter Circuit
Choose
FO = cutoff frequency = 20 MHz
α = damping ratio = 1/Q = 2
H = absolute value of circuit gain =
1
4 =
R
Then
1
2
C
F
k
O
π
=
2
)
1
(
1
4
α
+
=
H
C
C2
HK
R1
2
α
=
)
1
(
2
+
=
H
K
R3
α
)
1
(R
H
R4 =
+VS
0.1F
10F
–VS
VOUT
VIN
AD9631/
AD9632
75Ω
274Ω
75Ω
CABLE
75Ω
CABLE
00601-
064
0.1F
10F
0.1F
10F
VOUT
VIN
+5V
–5V
AD9632
100Ω
C1
50pF
R3
78.7Ω
R4
154Ω
R1
154Ω
C2
100pF
00601-
065
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9631CHIPS | 制造商:AD 制造商全稱:Analog Devices 功能描述:Ultralow Distortion, Wide Bandwidth Voltage Feedback Op Amps |
| AD9631-EB | 制造商:AD 制造商全稱:Analog Devices 功能描述:Ultralow Distortion, Wide Bandwidth Voltage Feedback Op Amps |
| AD9631SMD | 制造商:AD 制造商全稱:Analog Devices 功能描述:Ultralow Distortion, Wide Bandwidth Voltage Feedback Op Amps |
| AD9632 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Ultralow Distortion, Wide Bandwidth Voltage Feedback Op Amps |
| AD9632AN | 制造商:Analog Devices 功能描述:OP Amp Single Volt Fdbk 制造商:Rochester Electronics LLC 功能描述:WIDE BW, GAIN=2 OP AMP - Bulk |
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