High Speed, Low Cost, Triple Op Amp ADA4861-3 FEATURES PIN CONFIGURATION High speed POWER DOWN 1 1 14 OUT 2 730 MHz, 3 dB bandwidth POWER DOWN 2 2 13 IN 2 625 V/s slew rate POWER DOWN 3 3 12 +IN 2 13 ns settling time to 0.5% ADA4861-3 +V 4 11 V S S Wide supply range: 5 V to 12 V +IN 1 5 10 +IN 3 Low power: 6 mA/amplifier IN 1 6 9 IN 3 0.1 dB flatness: 100 MHz Differential gain: 0.01% OUT 1 7 8 OUT 3 Differential phase: 0.02 Figure 1. Low voltage offset: 100 V (typical) High output current: 25 mA Power down APPLICATIONS Consumer video Professional video Broadband video ADC buffers Active filters GENERAL DESCRIPTION 6.1 G = +2 The ADA4861-3 is a low cost, high speed, current feedback, V = 2V p-p OUT 6.0 triple op amp that provides excellent overall performance. The R = R = 301 F G 730 MHz, 3 dB bandwidth, and 625 V/s slew rate make this 5.9 amplifier well suited for many high speed applications. With its 5.8 V = 5V S combination of low price, excellent differential gain (0.01%), 5.7 V = +5V differential phase (0.02), and 0.1 dB flatness out to 100 MHz, S 5.6 this amplifier is ideal for both consumer and professional video 5.5 applications. 5.4 The ADA4861-3 is designed to operate on supply voltages as 5.3 low as +5 V and up to 5 V using only 6 mA/amplifier of supply 5.2 current. To further reduce power consumption, each amplifier 5.1 is equipped with a power-down feature that lowers the supply 0.1 1 10 100 1000 current to 0.3 mA/amplifier when not being used. FREQUENCY (MHz) Figure 2. Large Signal 0.1 dB Flatness The ADA4861-3 is available in a 14-lead SOIC N package and is designed to work over the extended temperature range of 40C to +105C. Rev. A 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. CLOSED-LOOP GAIN (dB) 05708-001 05708-011ADA4861-3 TABLE OF CONTENTS Features .............................................................................................. 1 Gain Configurations .................................................................. 13 Applications....................................................................................... 1 20 MHz Active Low-Pass Filter ................................................ 13 Pin Configuration............................................................................. 1 RGB Video Driver ...................................................................... 14 General Description ......................................................................... 1 Driving Two Video Loads ......................................................... 14 Revision History ............................................................................... 2 POWER-DOWN Pins ............................................................... 14 Specifications..................................................................................... 3 Single-Supply Operation ........................................................... 15 Absolute Maximum Ratings............................................................ 5 Power Supply Bypassing............................................................ 15 Thermal Resistance ...................................................................... 5 Layout .......................................................................................... 15 ESD Caution.................................................................................. 5 Outline Dimensions....................................................................... 16 Typical Performance Characteristics ............................................. 6 Ordering Guide .......................................................................... 16 Applications..................................................................................... 13 REVISION HISTORY 3/06Rev 0 to Rev. A Changes to 20 MHz Active Low-Pass Filter Section.................. 13 Changes to Figure 48 and Figure 49............................................. 13 10/05Revision 0: Initial Version Rev. A Page 2 of 16