Low Power, High Output Current, Quad Op Amp, Dual-Channel ADSL/ADSL2+ Line Driver AD8392A FEATURES PIN CONFIGURATIONS Four current feedback, high current amplifiers V 1 28 GND EE Ideal for use as ADSL/ADSL2+ dual-channel central office PD0 1, 2 2 27 NC (CO) line drivers PD1 1, 2 3 26 NC Low power operation +V 1 4 25 +V 2 IN IN 1 2 V 1 5 24 V 2 IN Power supply operation from 5 V (+10 V) up to 12 V (+24 V) IN V 1 6 23 V 2 OUT OUT Less than 3 mA/amp quiescent supply current for full V 7 22 NC CC AD8392A power ADSL/ADSL2+ CO applications (20.4 dBm line NC 8 21 V CC power, 5.5 CF) V 3 9 20 V 4 OUT OUT Three active power modes plus shutdown V 3 10 19 V 4 IN IN 34 +V 3 11 18 High output voltage and current drive IN +V 4 IN 12 17 NC PD1 3, 4 500 mA peak output drive current NC 13 16 PD0 3, 4 42.6 V p-p differential output voltage 14 15 GND V EE Low distortion NC = NO CONNECT 93 dBc 1 MHz second harmonic Figure 1. AD8392AARE, 28-Lead TSSOP/EP 103 dBc 1 MHz third harmonic High speed: 515 V/s differential slew rate Additional functionality of AD8392AACP On-chip, common-mode voltage generation APPLICATIONS 32 31 30 29 28 27 26 25 24 NC 1 NC ADSL/ADSL2+ CO line drivers 1 2 23 V 2 V 1 2 IN IN XDSL line drives V 2 V 1 3 22 OUT OUT V 4 21 NC CC AD8392A V GENERAL DESCRIPTION 5 20 NC CC V 4 6 19 V 3 OUT OUT The AD8392A is comprised of four high output current, low 7 18 V 4 V 3 IN IN 3 4 power consumption, operational amplifiers. It is particularly 17 NC 8 NC 910 11 12 13 14 15 16 well suited for the CO driver interface in digital subscriber line systems, such as ADSL and ADSL2+. The driver is capable of providing enough power to deliver 20.4 dBm to a line, while compensating for losses due to hybrid insertion and back NC = NO CONNECT termination resistors. Figure 2. AD8392AACP, 5 mm 5 mm, 32-Lead LFCSP The AD8392A is available in two thermally enhanced packages, a 28-lead TSSOP/EP (AD8392AARE) and a 5 mm 5 mm, 32-lead LFCSP (AD8392AACP). Four bias modes are available via the use of two digital bits (PD1, PD0). Additionally, the AD8392AACP provides VCOM pins for on-chip, common-mode voltage generation. The low power consumption, high output current, high output voltage swing, and robust thermal packaging enable the AD8392A to be used as the CO line drivers in ADSL and other xDSL systems. 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 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 2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. +V 3 +V 1 IN IN NC PD1 1, 2 V 3, 4 PD0 1, 2 COM V GND EE V EE GND PD0 3, 4 V 1, 2 COM PD1 3, 4 NC +V 4 +V 2 IN IN 06477-001 06477-002AD8392A TABLE OF CONTENTS Features .............................................................................................. 1 Applications........................................................................................8 Applications....................................................................................... 1 Supplies, Grounding, and Layout................................................8 General Description ......................................................................... 1 Power Management ......................................................................8 Pin Configurations ........................................................................... 1 Thermal Considerations...............................................................8 Specifications..................................................................................... 3 Typical ADSL/ADSL2+ Application...........................................9 Absolute Maximum Ratings............................................................ 4 Multitone Power Ratio............................................................... 10 Thermal Resistance ...................................................................... 4 Outline Dimensions ....................................................................... 11 ESD Caution.................................................................................. 4 Ordering Guide .......................................................................... 11 Typical Performance Characteristics ............................................. 5 Theory of Operation ........................................................................ 7 REVISION HISTORY 10/06Revision 0: Initial Version Rev. 0 Page 2 of 12