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AD8022 Folha de dados(PDF) 1 Page - Analog Devices

Nome de Peças AD8022
Descrição Electrónicos  Dual High Speed, Low Noise Op Amp
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Fabricante Electrônico  AD [Analog Devices]
Página de início  http://www.analog.com
Logo AD - Analog Devices

AD8022 Folha de dados(HTML) 1 Page - Analog Devices

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Dual High Speed,
Low Noise Op Amp
AD8022
Rev. B
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
©2005 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
OUT1
–IN1
+IN1
–VS
+VS
OUT2
–IN2
+IN2
+
+
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)
100
10
1
10
10M
1M
100k
10k
1k
100
iN (pA/ Hz)
eN (nV/ Hz)
Figure 2. Current and Voltage Noise vs. Frequency


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