Ultralow Distortion, Low Power, Low Noise, High Speed Op Amp Data Sheet ADA4857-1/ADA4857-2 FEATURES CONNECTION DIAGRAMS ADA4857-1 High speed TOP VIEW (Not to Scale) 850 MHz, 3 dB bandwidth (G = +1, R = 1 k, LFCSP) L 750 MHz, 3 dB bandwidth (G = +1, R = 1 k, SOIC) L PD 1 8 +V S 2800 V/s slew rate FB 2 7 OUT Low distortion: 88 dBc at 10 MHz (G = +1, R = 1 k) L IN 3 6 NC Low power: 5 mA/amplifier at 10 V +IN 4 5 V S Low noise: 4.4 nV/Hz NOTES Wide supply voltage range: 5 V to 10 V 1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN. Power-down feature 2. THE EXPOSED PAD MAY BE CONNECTED Available in 3 mm 3 mm 8-lead LFCSP (single), 8-lead SOIC TO GND OR VS. (single), and 4 mm 4 mm 16-lead LFCSP (dual) Figure 1. 8-Lead LFCSP (CP) ADA4857-1 APPLICATIONS TOP VIEW (Not to Scale) Instrumentation FB 1 8 PD IF and baseband amplifiers IN 2 7 +V S Active filters +IN 3 6 OUT ADC drivers V 4 5 NC S DAC buffers NC = NO CONNECT Figure 2. 8-Lead SOIC (R) ADA4857-2 TOP VIEW (Not to Scale) IN1 1 12 V S1 +IN1 2 11 NC NC 3 10 +IN2 V 4 9 IN2 S2 NOTES 1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN. 2. THE EXPOSED PAD MAY BE CONNECTED TO GND OR VS. Figure 3. 16-Lead LFCSP (CP) GENERAL DESCRIPTION The ADA4857 is a unity-gain stable, high speed, voltage feedback 10 V), the ADA4857 is an ideal candidate for systems that require high dynamic range, precision, and speed. amplifier with low distortion, low noise, and high slew rate. With a spurious-free dynamic range (SFDR) of 88 dBc at 10 MHz, the The ADA4857-1 amplifier is available in a 3 mm 3 mm, 8-lead ADA4857 is an ideal solution for a variety of applications, including LFCSP and a standard 8-lead SOIC. The ADA4857-2 is available in ultrasounds, ATE, active filters, and ADC drivers. The Analog a 4 mm 4 mm, 16-lead LFCSP. The LFCSP features an exposed Devices, Inc., proprietary next-generation XFCB process and paddle that provides a low thermal resistance path to the printed innovative architecture enables such high performance amplifiers. circuit board (PCB). This path enables more efficient heat transfer The ADA4857 has 850 MHz bandwidth, 2800 V/s slew rate, and and increases reliability. The ADA4857 works over the extended settles to 0.1% in 15 ns. With a wide supply voltage range (5 V to industrial temperature range (40C to +125C). Rev. D 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 20082017 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. FB1 OUT2 +V PD1 S2 +V PD2 S1 FB2 OUT1 07040-002 07040-003 07040-001 5 16 6 15 14 7 8 13ADA4857-1/ADA4857-2 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Test Circuits ..................................................................................... 16 Applications ....................................................................................... 1 Applications Information .............................................................. 17 Connection Diagrams ...................................................................... 1 Power-Down Operation ............................................................ 17 General Description ......................................................................... 1 Capacitive Load Considerations .............................................. 17 Revision History ............................................................................... 2 Recommended Values for Various Gains ................................ 17 Specif icat ions ..................................................................................... 3 Active Low-Pass Filter (LPF) .................................................... 18 5 V Supply ................................................................................... 3 Noise ............................................................................................ 19 +5 V Supply ................................................................................... 4 Circuit Considerations .............................................................. 19 Absolute Maximum Ratings ............................................................ 6 PCB Layout ................................................................................. 19 Thermal Resistance ...................................................................... 6 Power Supply Bypassing ............................................................ 19 Maximum Power Dissipation ..................................................... 6 Grounding ................................................................................... 19 ESD Caution .................................................................................. 6 Outline Dimensions ....................................................................... 20 Pin Configurations and Function Descriptions ........................... 7 Ordering Guide .......................................................................... 21 Typical Performance Characteristics ............................................. 9 REVISION HISTORY 1/2017Rev. C to Rev. D 11/2008Rev. 0 to Rev. A Changes to Figure 1 .......................................................................... 1 Changes to Table 5 ............................................................................. 7 Changes to Table 1 ............................................................................ 3 Changes to Table 7 ............................................................................. 8 Changes to Table 2 ............................................................................ 4 Changes to Figure 32...................................................................... 13 Changes to Figure 5 .......................................................................... 7 Added Figure 44 Renumbered Sequentially .............................. 15 Added Figure 40 and Figure 43 Renumbered Sequentially ..... 14 Changes to Layout .......................................................................... 15 Added Figure 44, Figure 45, Figure 46, Figure 47, Changes to Table 8 .......................................................................... 16 and Figure 48 ................................................................................... 15 Added Active Low-Pass Filter (LFP) Section ............................. 17 Changes to Power-Down Operation Section .............................. 17 Added Figure 48 and Figure 49 Renumbered Sequentially ..... 17 Updated Outline Dimensions ....................................................... 20 Changes to Grounding Section .................................................... 18 Changes to Ordering Guide .......................................................... 21 Exposed Paddle Notation Added to Outline Dimensions ........ 19 Changes to Ordering Guide .......................................................... 20 9/2013Rev. B to Rev. C Changes to Figure 1 and Figure 3 ................................................... 1 5/2008Revision 0: Initial Version Change to Figure 5 ........................................................................... 7 Change to Figure 7 ........................................................................... 8 Updated Outline Dimensions ....................................................... 20 Changes to Ordering Guide .......................................................... 20 8/2011Rev. A to Rev. B Changes to Table 1 Conditions ....................................................... 3 Changes to Table 2 Conditions ....................................................... 4 Changes to Typical Performance Characteristics Conditions .... 9 Changes to Figure 18 ...................................................................... 10 Changes to Figure 42 ...................................................................... 15 Changes to Table 9 .......................................................................... 16 Changes to Ordering Guide .......................................................... 20 Rev. D Page 2 of 21