Dual High Speed, Low Noise Op Amp Data Sheet AD8022 FUNCTIONAL BLOCK DIAGRAM FEATURES Low power amplifiers provide low noise and low distortion, AD8022 OUT1 +V 1 8 S ideal for xDSL modem receiver Wide supply range: +5 V, 2.5 V to 12 V voltage supply IN1 2 7 OUT2 + Low power consumption: 4.0 mA/Amp +IN1 IN2 3 6 Voltage feedback 4 + 5 V +IN2 S Ease of Use Lower total noise (insignificant input current noise Figure 1. 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/s 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 100 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 10 when driving capacitive loads. Manufactured on ADIs 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 e (nV/ Hz) N voltage recovery and wide bandwidth make the AD8022 ideal as the receive channel front end to an ADSL, VDSL, or proprietary i (pA/ Hz) N xDSL transceiver design. 1 10 100 1k 10k 100k 1M 10M In an xDSL line interface circuit, the AD8022s op amps can be FREQUENCY (Hz) configured as the differential receiver from the line transformer Figure 2. Current and Voltage Noise vs. Frequency or as independent active filters. 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Fax: 781.461.3113 2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. (pA/ Hz, nV/ Hz) 01053-001 01053-002AD8022 Data Sheet TABLE OF CONTENTS Specifications..................................................................................... 3 DMT Modulation and Multitone Power Ratio (MTPR)....... 13 Absolute Maximum Ratings............................................................ 5 Channel Capacity and SNR....................................................... 13 Maximum Power Dissipation ..................................................... 5 Power Supply and Decoupling.................................................. 13 ESD Caution.................................................................................. 5 Layout Considerations............................................................... 15 Typical Performance Characteristics ............................................. 6 Outline Dimensions ....................................................................... 16 Theory of Operation ...................................................................... 12 Ordering Guide .......................................................................... 16 Applications..................................................................................... 13 REVISION HISTORY 8/11Rev. B to Rev. C Changes to Figure 40 ......................................................................14 Updated Outline Dimensions........................................................16 Changes to Ordering Guide...........................................................16 5/05Rev. A to Rev. B Changes to Format .............................................................Universal Deleted Evaluation Boards Section.............................................. 14 Deleted Generating DMT Section................................................ 14 Changes to Ordering Guide.......................................................... 16 Updated Outline Dimensions....................................................... 16 9/02Rev. 0 to Rev. A Changes to Features ..........................................................................1 Changes to Applications...................................................................1 Changes to Product Description .....................................................1 Changes to Functional Block Diagram ..........................................1 Changes to Figure 1...........................................................................1 Changes to Specifications Table......................................................2 Edits to TPCs 1, 2, 3, 6 ......................................................................5 New TPCs 7, 8....................................................................................6 Edits to TPCs 16, 17, 18....................................................................7 Edits to TPC 19 ..................................................................................8 Edits to TPC 28 ..................................................................................9 Edits to Figure 3...............................................................................11 Edits to Figure 6...............................................................................14 Updated Outline Dimensions........................................................16 Rev. 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