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AD8022ARZ-REEL7 数据手册 - ADI（亚德诺）
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ADI（亚德诺）
分类:
放大器、缓冲器
封装:
SOIC-8
描述:
双高速，低噪声运算放大器 Dual High Speed, Low Noise Op Amp
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AD8022ARZ-REEL7数据手册
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Dual High Speed,
Low Noise Op Amp
Data Sheet
AD8022
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 www.analog.com
Fax: 781.461.3113 ©2011 Analog Devices, Inc. All rights reserved.
FEATURES
Low power amplifiers provide low noise and low distortion,
ideal for xDSL modem receiver
Wide supply range: +5 V, ±2.5 V to ±12 V voltage supply
Low power consumption: 4.0 mA/Amp
Voltage feedback
Ease of Use
Lower total noise (insignificant input current noise
contribution compared to current feedback amps)
Low noise and distortion
2.5 nV/√Hz voltage noise @ 100 kHz
1.2 pA/√Hz current noise
MTPR < −66 dBc (G = +7)
SFDR 110 dB @ 200 kHz
High speed
130 MHz bandwidth (−3 dB), G = +1
Settling time to 0.1%, 68 ns
50 V/μs slew rate
High output swing: ±10.1 V on ±12 V supply
Low offset voltage, 1.5 mV typical
APPLICATIONS
Receiver for ADSL, VDSL, HDSL, and proprietary
xDSL systems
Low noise instrumentation front end
Ultrasound preamps
Active filters
16-bit ADC buffers
FUNCTIONAL BLOCK DIAGRAM
AD8022
1
2
3
4
8
7
6
5
O
UT1
–IN1
+IN1
–V
S
+V
S
OUT2
–IN2
+IN2
01053-001
–
+
–
+
Figure 1.
GENERAL DESCRIPTIONS
The AD8022 consists of two low noise, high speed, voltage
feedback amplifiers. Each amplifier consumes only 4.0 mA of
quiescent current, yet has only 2.5 nV/√Hz of voltage noise.
These dual amplifiers provide wideband, low distortion
performance, with high output current optimized for stability
when driving capacitive loads. Manufactured on ADI’s high
voltage generation of XFCB bipolar process, the AD8022
operates on a wide range of supply voltages. The AD8022 is
available in both an 8-lead MSOP and an 8-lead SOIC. Fast over
voltage recovery and wide bandwidth make the AD8022 ideal as
the receive channel front end to an ADSL, VDSL, or proprietary
xDSL transceiver design.
In an xDSL line interface circuit, the AD8022’s op amps can be
configured as the differential receiver from the line transformer
or as independent active filters.
FREQUENCY (Hz)
(pA/ Hz, nV/ Hz)
100
10
1
10 10M1M100k10k1k100
01053-002
i
N
(pA/ Hz)
e
N
(nV/ Hz)
Figure 2. Current and Voltage Noise vs. Frequency
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