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參數資料
| 型號： | AD8129ARZ-REEL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 模擬信號調理 |
| 英文描述： | Low Cost 270 MHz Differential Receiver Amplifiers |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO8 |
| 封裝： | LEAD FREE, SOIC-8 |
| 文件頁數： | 1/40頁 |
| 文件大小： | 549K |
| 代理商： | AD8129ARZ-REEL |
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Low Cost 270 MHz
Differential Receiver Amplifiers
AD8129/AD8130
FEATURES
High speed
AD8130: 270 MHz, 1090 V/μs @ G = +1
AD8129: 200 MHz, 1060 V/μs @ G = +10
High CMRR
94 dB min, dc to 100 kHz
80 dB min @ 2 MHz
70 dB @ 10 MHz
High input impedance: 1 MΩ differential
Input common-mode range ±10.5 V
Low noise
AD8130: 12.5 nV/√Hz
AD8129: 4.5 nV/√Hz
Low distortion, 1 V p-p @ 5 MHz
AD8130, 79 dBc worst harmonic @ 5 MHz
AD8129, 74 dBc worst harmonic @ 5 MHz
User-adjustable gain
No external components for G = +1
Power supply range +4.5 V to ±12.6 V
Power-down
APPLICATIONS
High speed differential line receivers
Differential-to-single-ended converters
High speed instrumentation amps
Level shifting
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
2005 Analog Devices, Inc. All rights reserved.
www.analog.com
CONNECTION DIAGRAM
AD8129/
AD8130
1
2
3
4
+IN
–IN
–
V
S
+V
S
PD
OUT
REF
FB
8
7
6
5
+
0
Figure 1.
The AD8129/AD8130 are differential-to-single-ended amplifiers
with extremely high CMRR at high frequency. Therefore, they
can also be effectively used as high speed instrumentation amps
or for converting differential signals to single-ended signals.
The AD8129 is a low noise, high gain (10 or greater) version
intended for applications over very long cables, where signal
attenuation is significant. The AD8130 is stable at a gain of 1
and can be used for applications where lower gains are required.
Both have user-adjustable gain to help compensate for losses in
the transmission line. The gain is set by the ratio of two resistor
values. The AD8129/AD8130 have very high input impedance
on both inputs, regardless of the gain setting.
GENERAL DESCRIPTION
The AD8129/AD8130 are designed as receivers for the
transmission of high speed signals over twisted-pair cables to
work with the
AD8131
or
AD8132
drivers. Either can be used
for analog or digital video signals and for high speed data
transmission.
120
110
100
90
80
70
60
50
40
30
10k
100k
1M
10M
100M
FREQUENCY (Hz)
C
0
Figure 2. AD8129 CMRR vs. Frequency
The AD8129/AD8130 have excellent common-mode rejection
(70 dB @ 10 MHz), allowing the use of low cost, unshielded
twisted-pair cables without fear of corruption by external noise
sources or crosstalk. The AD8129/AD8130 have a wide power
supply range from single +5 V to ±12 V, allowing wide common-
mode and differential-mode voltage ranges while maintaining
signal integrity. The wide common-mode voltage range enables
the driver-receiver pair to operate without isolation transformers
in many systems where the ground potential difference between
drive and receive locations is many volts. The AD8129/AD8130
have considerable cost and performance improvements over
op amps and other multiamplifier receiving solutions.
R
F
V
OUT
V
IN
R
G
V
OUT
= V
IN
[1+(R
F
/R
G
)]
PD
3
+V
S
–V
S
1
8
4
5
2
7
6
0
Figure 3. Typical Connection Configuration
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