Low Cost, Dual, High Current Output Line Driver with Shutdown ADA4311-1 FEATURES PIN CONFIGURATION ADA4311-1 High speed +V 1 10 OUT B S 3 dB bandwidth: 310 MHz, G = +5, R = 50 LOAD NC 2 9 IN B Slew rate: 1050 V/s, R = 50 LOAD OUT A 3 8 +IN B Wide output swing IN A 4 7 PD1 20.6 V p-p differential, R of 100 from 12 V supply LOAD +IN A 5 6 PD0 High output current NC = NO CONNECT Low distortion Figure 1. Thermally Enhanced, 10-Lead MINI SO EP 98 dBc typical at 1 MHz, V = 2 V p-p, G = +5, R = 100 OUT LOAD TYPICAL APPLICATION 72 dBc typical at 10 MHz, V = 2 V p-p, G = +5, R = 100 OUT LOAD Power management and shutdown 1/2 Control inputs CMOS level compatible ADA4311-1 Shutdown quiescent current: 1 mA/amplifier V * Selectable quiescent current: 1 mA to 11.8 mA/amplifier MID APPLICATIONS 1/2 Home networking line drivers ADA4311-1 Twisted pair line drivers V GND CC = *V Power line communications (PLC) MID 2 Video line drivers Figure 2. Typical PLC Driver Application ARB line drivers I/Q channel amplifiers GENERAL DESCRIPTION The ADA4311-1 is comprised of two high speed, current The ADA4311-1 is available in a thermally enhanced, 10-lead feedback operational amplifiers. The high output current, high MSOP with an exposed paddle for improved thermal conduction. bandwidth, and fast slew rate make it an excellent choice for The ADA4311-1 is rated to work in the extended industrial broadband applications requiring high linearity performance temperature range of 40C to +85C. while driving low impedance loads. The ADA4311-1 incorporates a power management function that provides shutdown capabilities and the ability to optimize the quiescent current of the amplifiers. The CMOS-compatible, power-down control pins (PD1 and PD0) enable the ADA4311-1 to operate in four different modes: full power, medium power, low power, and complete power-down. In power-down mode, the quiescent current drops to only 1.0 mA/amplifier, while the outputs go to a high impedance state. 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 2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 06940-001 06940-002ADA4311-1 TABLE OF CONTENTS Features .............................................................................................. 1 Theory of Operation ...................................................................... 10 Applications....................................................................................... 1 Application Information................................................................ 11 Pin Configuration............................................................................. 1 Feedback Resistor Selection...................................................... 11 Typical Application........................................................................... 1 Power Control Modes of Operation ........................................ 11 General Description ......................................................................... 1 Exposed Thermal Pad Connections ........................................ 11 Revision History ............................................................................... 2 Powerline Application ............................................................... 11 Specifications..................................................................................... 3 Board Layout............................................................................... 12 Absolute Maximum Ratings............................................................ 5 Power Supply Bypassing............................................................ 12 Thermal Resistance ...................................................................... 5 Outline Dimensions ....................................................................... 13 ESD Caution.................................................................................. 5 Ordering Guide .......................................................................... 13 Pin Configuration and Function Descriptions............................. 6 Typical Performance Characteristics ............................................. 7 REVISION HISTORY 8/07Revision 0: Initial Version Rev. 0 Page 2 of 16