Datasheet ADA4858-3 (Analog Devices)

Single-Supply, High Speed, Triple Op Amp with Charge Pump Data Sheet ADA4858-3 FEATURES CONNECTION DIAGRAM Integrated charge pump ADA4858-3 Supply range: 3 V to 5.5 V T1 N1 IN1 Output range: −3.3 V to −1.8 V OU –I + NC 16 15 14 13 50 mA maximum output current for external use at −3 V High speed amplifiers +V 1 12 +IN2 S −3 dB bandwidth: 600 MHz C1_a 2 11 –IN2 Slew rate: 600 V/µs CHARGE C1_b 3 PUMP 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 S N3 T3 +V IN3 Power-down feature + –I OU High input common-mode voltage range NOTES
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1. NC = NO CONNECT. −1.8 V to +3.8 V at +5 V supply 2. EXPOSED PAD, CONNECT TO GROUND.
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Current feedback architecture
Figure 1.
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/µs 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 Ω 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 −40°C to +105°C.
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 rights of third parties that may result from its use. Specifications subject to change without notice. No One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 781.329.4700 ©2008–2012 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com
Document Outline Features Applications General Description Connection Diagram Table of Contents Revision History Specifications Absolute Maximum Ratings Maximum Power Dissipation ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Overview Charge Pump Operation Applications Information Gain Configurations DC-Coupled Video Signal Multiple Video Driver DC Restore Function Clamp Amplifier PD (Power-Down) Pin Power Supply Bypassing Layout Outline Dimensions Ordering Guide