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AD8022 데이터시트(PDF) 1 Page - Analog Devices

부품명 AD8022
상세설명  Dual High-Speed Low-Noise Op Amps
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홈페이지  http://www.analog.com
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AD8022 데이터시트(HTML) 1 Page - Analog Devices

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REV. 0
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
AD8022
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 1999
Dual High-Speed
Low-Noise Op Amps
FUNCTIONAL BLOCK DIAGRAM
8
7
6
5
1
2
3
4
OUT1
–IN1
+IN1
–VS
+VS
OUT2
–IN2
+IN2
AD8022
+
+
FEATURES
Low-Noise Amplifiers Provide Low Noise and Low
Distortion, Ideal for xDSL Modem Receiver
+5 V to
12 V Voltage Supply
Low-Power Consumption
4.0 mA/Amp (Typ) Supply Current
Voltage Feedback Amplifiers
Low Noise and Distortion
2.5 nV/
√Hz Voltage Noise @ 100 kHz
SFDR –95 dBc @ 1 MHz
MTPR < –66 dBc
High Speed
120 MHz Bandwidth (–3 dB), G = 1
50 V/ s Slew Rate
Low-Offset Voltage, 1.5 mV Typical
APPLICATIONS
ADSL, VDSL, HDSL, and Proprietary xDSL Systems
Low-Noise Instrumentation Front End
Ultrasound Preamp
PRODUCT DESCRIPTION
The AD8022 consists of two low-noise, high-speed, voltage feed-
back amplifiers. Both inputs add 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. Operating from +5 V to
±12 V
supplies, the AD8022 typically consumes only 4.0 mA/Amp
quiescent current. The AD8022 is available in both an 8-lead
microSOIC and an 8-lead SOIC package. Fast overvoltage
recovery and wide bandwidth make the AD8022 ideal as the
receive channel front end to an ADSL, VDSL or proprietary
xDSL transceiver design.
Low-noise receive amplifiers in the AD8022 are independent
voltage feedback amplifiers and can be configured as the differ-
ential receiver from the line transformer or as independent active
filters in an xDSL line interface circuit.
FREQUENCY – Hz
3.0
10k
2.5
2.0
1.5
1.0
0.5
0
100k
1M
VOLTAGE NOISE, nV
CURRENT NOISE, pA
Figure 1. Current and Voltage Noise vs. Frequency


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