Single-Supply, Fixed G = 2, High Speed, Video Amplifier with Charge Pump Data Sheet ADA4859-3 FEATURES CONNECTION DIAGRAM ADA4859-3 Integrated charge pump Supply range: 3 V to 5.5 V Output range: 3.3 V to 1.8 V 16 15 14 13 50 mA maximum output current at 3 V for external use High speed amplifiers 3 dB bandwidth: 195 MHz 12 +IN2 +V 1 S Slew rate: 740 V/s 0.1 dB gain flatness: 60 MHz 11 IN2 C1 a 2 CHARGE 0.1% settling time: 20 ns PUMP C1 b 3 10 OUT2 Low power CPO 4 Total quiescent current: 38 mA 9 PD Power-down feature High input common-mode voltage range 5 6 7 8 1.8 V to +3.8 V at +5 V supply Current feedback architecture Differential gain error: 0.01% NOTES 1. NC = NO CONNECT. Differential phase error: 0.02 2. EXPOSED PAD, CONNECT TO GROUND. Available in 16-lead LFCSP Figure 1. APPLICATIONS Professional video Consumer video Imaging Active filters GENERAL DESCRIPTION The ADA4859-3 (triple) is a single-supply, high speed current This triple video amplifier is designed to operate on supply feedback amplifier with an integrated charge pump that eliminates voltages of 3.3 V to 5 V, using only 38 mA total quiescent the need for negative supplies in order to output negative voltages current, including the charge pump. To further reduce the or output a 0 V level for video applications. The 195 MHz, large power consumption, it is equipped with a power-down feature signal 3 dB bandwidth at a fixed gain of 2, as well as the 740 V/s that lowers the total supply current to as low as 2 mA when the slew rate, make this amplifier ideal for high resolution professional amplifier is not being used. Even in power-down mode, the and consumer video applications. The amplifier also has a wide charge pump can be used to power external components. The input common-mode voltage range that extends from 1.8 V maximum output current for external use is 50 mA at 3 V. below ground to 1.2 V below the positive rail at 5 V supply. The ADA4859-3 is available in a 16-lead LFCSP, and it is designed to work over the industrial temperature range of 40C to +105C. Rev. A Document Feedback 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 20082012 Analog Devices, Inc. All rights reserved. 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. Technical Support www.analog.com OUT1 +V S IN1 +IN3 +IN1 IN3 NC OUT3 07715-001ADA4859-3 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Theory of Operation ...................................................................... 12 Applications ....................................................................................... 1 Overview ..................................................................................... 12 Connection Diagram ....................................................................... 1 Charge Pump Operation ........................................................... 12 General Description ......................................................................... 1 Applications Information .............................................................. 13 Revision History ............................................................................... 2 Using the ADA4859-3 in Gains Equal to +1, 1 ........................ 13 Specifications ..................................................................................... 3 Video Line Driver ....................................................................... 14 Absolute Maximum Ratings ............................................................ 5 Power-Down ............................................................................... 14 Maximum Power Dissipation ..................................................... 5 Layout Considerations ............................................................... 14 ESD Caution .................................................................................. 5 Power Supply Bypassing ............................................................ 14 Pin Configuration and Function Descriptions ............................. 6 Outline Dimensions ....................................................................... 15 Typical Performance Characteristics ............................................. 7 Ordering Guide .......................................................................... 15 REVISION HISTORY 11/12Rev. 0 to Rev. A Changes to Power-Down Section ................................................. 14 11/08Revision 0: Initial Version Rev. A Page 2 of 16