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參數資料
| 型號： | AD8066 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 運動控制電子 |
| 英文描述： | High Performance, 145 MHz FastFET⑩ Op Amps |
| 中文描述： | 高性能，145兆赫FastFET⑩運算放大器 |
| 文件頁數： | 18/28頁 |
| 文件大小： | 364K |
| 代理商： | AD8066 |
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AD8065/AD8066
THEORY OF OPERATION
The AD8065/AD8066 are voltage feedback operational
amplifiers that combine a laser-trimmed JFET input stage with
the Analog Devices eXtra Fast Complementary Bipolar (XFCB)
process, resulting in an outstanding combination of precision
and speed. The supply voltage range is from 5 V to 24 V. The
amplifiers feature a patented rail-to-rail output stage capable of
driving within 0.5 V of either power supply while sourcing or
sinking up to 30 mA. Also featured is a single-supply input stage
that handles common-mode signals from below the negative
supply to within 3 V of the positive rail. Operation beyond the
JFET input range is possible because of an auxiliary bipolar
input stage that functions with input voltages up to the positive
supply. The amplifiers operate as if they have a rail-to-rail input
and exhibit no phase reversal behavior for common-mode
voltages within the power supply.
Rev. E | Page 18 of 28
With voltage noise of 7 nV/√Hz and 88 dBc distortion for
1 MHz 2 V p-p signals, the AD8065/AD8066 are a great choice
for high resolution data acquisition systems. Their low noise,
sub-pA input current, precision offset, and high speed make
them superb preamps for fast photodiode applications. The
speed and output drive capability of the AD8065/AD8066 also
make them useful in video applications.
CLOSED-LOOP FREQUENCY RESPONSE
The AD8065/AD8066 are classic voltage feedback amplifiers
with an open-loop frequency response that can be approx-
imated as the integrator response shown in Figure 53. Basic
closed-loop frequency response for inverting and noninverting
configurations can be derived from the schematics shown.
NONINVERTING CLOSED-LOOP FREQUENCY
RESPONSE
Solving for the transfer function
(
(
)
G
F
I
s
R
R
V
×
π
+
+
2
)
×
G
crossover
F
G
crossover
O
R
f
R
R
f
V
+
×
π
=
2
where
f
crossover
is the frequency where the amplifier’s open-loop
gain equals 0 db
At dc
G
G
F
I
O
R
R
R
V
V
+
=
Closed-loop 3 dB frequency
G
F
G
crossover
3dB
R
R
R
+
f
f
×
=
INVERTING CLOSED-LOOP FREQUENCY
RESPONSE
f
V
π
+
+
2
(
)
G
crossover
G
F
F
crossover
×
I
O
R
f
R
R
s
R
V
×
×
×
π
=
2
At dc
G
F
I
O
R
R
V
V
=
Closed-loop 3 dB frequency
G
F
G
crossover
3dB
R
R
R
+
f
f
×
=
R
F
A
V
O
R
G
V
I
V
E
FREQUENCY (MHz)
80
60
0.01
100
O
0.1
10
1
40
20
0
f
crossover
= 65MHz
A = (2
π ×
f
crossover
)/s
R
F
V
E
A
V
O
R
G
V
I
0
Figure 53. Open-Loop Gain vs. Frequency and Basic Connections
相關PDF資料 |
PDF描述 |
|---|---|
| AD8066AR | High Performance, 145 MHz FastFET⑩ Op Amps |
| AD8066AR-REEL | High Performance, 145 MHz FastFET⑩ Op Amps |
| AD8066AR-REEL7 | High Performance, 145 MHz FastFET⑩ Op Amps |
| AD8066ARM | High Performance, 145 MHz FastFET⑩ Op Amps |
| AD8066ARM-REEL | High Performance, 145 MHz FastFET⑩ Op Amps |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AD8066AR | 功能描述:IC OPAMP VF R-R DUAL LN LP 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:FastFET™ 標準包裝:50 系列:- 放大器類型:J-FET 電路數:2 輸出類型:- 轉換速率:13 V/µs 增益帶寬積:3MHz -3db帶寬:- 電流 - 輸入偏壓:65pA 電壓 - 輸入偏移:3000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應商設備封裝:8-PDIP 包裝:管件 |
| AD8066AR-EBZ | 功能描述:BOARD EVAL FOR AD8066AR RoHS:是 類別:編程器，開發系統 >> 評估板 - 運算放大器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- |
| AD8066ARM | 功能描述:IC OPAMP VF R-R DUAL LN LP 8MSOP RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:FastFET™ 標準包裝:50 系列:- 放大器類型:J-FET 電路數:2 輸出類型:- 轉換速率:13 V/µs 增益帶寬積:3MHz -3db帶寬:- 電流 - 輸入偏壓:65pA 電壓 - 輸入偏移:3000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應商設備封裝:8-PDIP 包裝:管件 |
| AD8066ARM-EBZ | 功能描述:BOARD EVAL FOR AD8066ARM RoHS:是 類別:編程器，開發系統 >> 評估板 - 運算放大器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- |
| AD8066ARM-REEL | 制造商:Analog Devices 功能描述:OP Amp Dual Volt Fdbk R-R O/P ±12V/24V 8-Pin MSOP T/R |
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