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| 型号： | AD8033ARZ-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 14/25页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP VF R-R LN LP 60MA 8SOIC |
| 产品培训模块： | Op Amp Basics |
| 标准包装： | 2,500 |
| 系列： | FastFET™ |
| 放大器类型： | 电压反馈 |
| 电路数： | 1 |
| 输出类型： | 满摆幅 |
| 转换速率： | 80 V/µs |
| -3db带宽： | 80MHz |
| 电流 - 输入偏压： | 1.5pA |
| 电压 - 输入偏移： | 1000µV |
| 电流 - 电源： | 3.3mA |
| 电流 - 输出 / 通道： | 60mA |
| 电压 - 电源，单路/双路(±)： | 5 V ~ 24 V，±2.5 V ~ 12 V |
| 工作温度： | -40°C ~ 85°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) |
AD8033/AD8034
Rev. D | Page 20 of 24
1V/DIV 100ns/DIV
02
92
4-
0
55
OUTPUT
INPUT
2
Figure 56. Peak Detector Response 4 V, 300 ns Pulse
300 ns, 4 V pulse with 10 mV of kickback and a droop rate of
5 V/s. For larger peak-to-peak pulses, increase the time constants
of R1, C1 and R3, C3 to reduce overshoot. The best droop rate
occurs by isolating parasitic resistances from Node 3, which can
be accomplished using a guard band connected to the output of the
second amplifier that surrounds its summing junction (Node 3).
Increasing both time constants by a factor of 3 permits a larger
peak pulse to be captured and increases the output accuracy.
1V/DIV 200ns/DIV
02
92
4-
0
57
OUTPUT
INPUT
2
Figure 57. Peak Detector Response 5 V, 1 μs Pulse
Figure 57 shows a 5 V peak pulse being captured in 1 μs with
less than 1 mV of kickback. With this selection of time constants,
up to a 20 V peak pulse can be captured with no overshoot.
ACTIVE FILTERS
The response of an active filter varies greatly depending on the
performance of the active device. Open-loop bandwidth and
gain, along with the order of the filter, determines the stop-band
attenuation as well as the maximum cutoff frequency, while
input capacitance can set a limit on which passive components
are used. Topologies for active filters are varied, and some are
more dependent on the performance of the active device than
others are.
The Sallen-Key topology is the least dependent on the active
device, requiring that the bandwidth be flat to beyond the stop-
band frequency because it is used simply as a gain block. In the
case of high Q filter stages, the peaking must not exceed the open-
loop bandwidth and the linear input range of the amplifier.
Using an AD8033/AD8034, a 4-pole cascaded Sallen-Key filter
can be constructed with fC = 1 MHz and over 80 dB of stop-band
attenuation, as shown in Figure 58.
–VS
+VS
C2
10pF
–VS
+VS
VIN
R1
4.22k
AD8034
1/2
AD8034
1/2
R2
6.49k
R5
49.9
C1
27pF
C3
33pF
R4
4.99k
R3
4.99k
C4
82pF
VOUT
02
92
4-
05
8
Figure 58. 4-Pole Cascade Sallen-Key Filter
Component values are selected using a normalized cascaded,
2-stage Butterworth filter table and Sallen-Key 2-pole active
filter equations. The overall frequency response is shown in
10M
1M
10k
FREQUENCY (Hz)
–100
R
E
F
LE
V
E
L
(d
B
)
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
100k
0
29
24
-0
59
Figure 59. 4-Pole Cascade Sallen-Key Filter Response
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相关代理商/技术参数 |
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| AD8033ARZ-REEL7 | 功能描述:IC OPAMP VF R-R LN LP 60MA 8SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:FastFET™ 标准包装:2,500 系列:- 放大器类型:通用 电路数:1 输出类型:满摆幅 转换速率:0.11 V/µs 增益带宽积:350kHz -3db带宽:- 电流 - 输入偏压:4nA 电压 - 输入偏移:20µV 电流 - 电源:260µA 电流 - 输出 / 通道:20mA 电压 - 电源，单路/双路(±):2.7 V ~ 36 V，±1.35 V ~ 18 V 工作温度:-40°C ~ 85°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) |
| AD8034 | 制造商:AD 制造商全称:Analog Devices 功能描述:Low Cost, 80 MHz FastFET ⑩ Op Amps |
| AD8034AR | 制造商:Rochester Electronics LLC 功能描述:SOIC HIGH-SPEED DUAL FET INPUT AMPLIFIER - Bulk 制造商:Analog Devices 功能描述:SEMICONDUCTOR ((NW)) |
| AD8034AR-EBZ | 功能描述:BOARD EVAL FOR AD8034AR RoHS:是 类别:编程器，开发系统 >> 评估板 - 运算放大器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- |
| AD8034AR-REEL | 制造商:Analog Devices 功能描述:OP Amp Dual Volt Fdbk R-R O/P 制造商:Analog Devices 功能描述:OP Amp Dual Volt Fdbk R-R O/P ±12V/24V 8-Pin SOIC N T/R 制造商:Analog Devices 功能描述:OP AMP DUAL VOLT FDBK R-R O/P 12V/24V 8SOIC N - Tape and Reel |
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