Single-Supply, High Speed, Triple Op Amp with Charge Pump Data Sheet ADA4858-3 FEATURES CONNECTION DIAGRAM ADA4858-3 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 for external use at 3 V High speed amplifiers 12 +IN2 +V 1 S 3 dB bandwidth: 600 MHz 11 IN2 C1 a 2 CHARGE Slew rate: 600 V/s PUMP C1 b 3 10 OUT2 0.1 dB flatness: 85 MHz CPO 4 9 PD 0.1% settling time: 18 ns Low power 5 6 7 8 Total quiescent current: 42 mA Power-down feature NOTES High input common-mode voltage range 1. NC = NO CONNECT. 2. EXPOSED PAD, CONNECT TO GROUND. 1.8 V to +3.8 V at +5 V supply Figure 1. Current feedback architecture Differential gain error: 0.01% Differential phase error: 0.02 Available in 16-lead LFCSP APPLICATIONS Professional video Consumer video Imaging Active filters GENERAL DESCRIPTION The ADA4858-3 (triple) is a single-supply, high speed current This triple operational amplifier is designed to operate on feedback amplifier with an integrated charge pump that eliminates supply voltages of 3.3 V to 5 V, using only 42 mA of total the need for negative supplies to output negative voltages or output quiescent current, including the charge pump. To further a 0 V level for video applications. The 600 MHz, 3 dB bandwidth reduce the power consumption, it is equipped with a power- and 600 V/s slew rate make this amplifier well suited for many down feature that lowers the total supply current to as low as high speed applications. In addition, its 0.1 dB flatness out to 2.5 mA when the amplifier is not being used. Even in power- 85 MHz at G = 2, along with its differential gain and phase errors down mode, the charge pump can be used to power external of 0.01% and 0.02 into a 150 load , make it well suited for components. The maximum output current for external use is professional and consumer video applications. 50 mA at 3 V. The amplifier also has a wide input common- mode voltage range that extends from 1.8 V below ground to 1.2 V below the positive rail at a 5 V supply. The ADA4858-3 is available in a 16-lead LFCSP, and it is designed to work over the extended industrial temperature range of 40C to +105C. Rev. B 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 IN3 +IN1 NC OUT3 07714-001ADA4858-3 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Applications Information .............................................................. 14 Applications ....................................................................................... 1 Gain Configurations .................................................................. 14 Connection Diagram ....................................................................... 1 DC-Coupled Video Signal ........................................................ 14 General Description ......................................................................... 1 Multiple Video Driver................................................................ 14 Revision History ............................................................................... 2 DC Restore Function ................................................................. 15 Specifications ..................................................................................... 3 Clamp Amplifier ......................................................................... 15 Absolute Maximum Ratings ............................................................ 5 PD (Power-Down) Pin .............................................................. 16 Maximum Power Dissipation ..................................................... 5 Power Supply Bypassing ............................................................ 16 ESD Caution .................................................................................. 5 Layout .......................................................................................... 16 Pin Configuration and Function Descriptions ............................. 6 Outline Dimensions ....................................................................... 17 Typical Performance Characteristics ............................................. 7 Ordering Guide .......................................................................... 17 Theory of Operation ...................................................................... 13 Overview ...................................................................................... 13 Charge Pump Operation ........................................................... 13 REVISION HISTORY 11/12Rev. A to Rev. B Changes to PD (Power-Down) Pin Section ................................ 16 5/09Rev. 0 to Rev. A Changes to Overview Section and Charge Pump Operation Section .............................................................................................. 13 Changes to Table 5 and Figure 41 ................................................. 14 Added DC Restore Function Section, Figure 43, Clamp Amplifier Section, and Figure 44 .................................................. 15 10/08Revision 0: Initial Version Rev. B Page 2 of 20