Rail-to-Rail, High Output Current Amplifier Data Sheet AD8397 FEATURES PIN CONFIGURATION Dual operational amplifier OUT1 1 8 +V S IN1 2 7 OUT2 Voltage feedback +IN1 3 6 IN2 Wide supply range from 3 V to 24 V V 4 5 +IN2 S Rail-to-rail output Output swing to within 0.5 V of supply rails Figure 1. 8-Lead SOIC High linear output current 310 mA peak into 32 on 12 V supplies while maintaining 1.50 80 dBc SFDR 1.25 Low noise 1.00 4.5 nV/Hz voltage noise density at 100 kHz 0.75 1.5 pA/Hz current noise density at 100 kHz 0.50 High speed 0.25 69 MHz bandwidth (G = 1, 3 dB) 0 53 V/s slew rate (R = 25 ) LOAD 0.25 0.50 APPLICATIONS 0.75 1.00 Twisted-pair line drivers 1.25 Audio applications 1.50 General-purpose ac applications 0 2 4 6 8 101214161820 TIME (s) Figure 2. Output Swing, VS = 1.5 V, RL = 25 GENERAL DESCRIPTION The AD8397 comprises two voltage feedback operational amplifiers 12 capable of driving heavy loads with excellent linearity. The 9 common-emitter, rail-to-rail output stage surpasses the output voltage capability of typical emitter-follower output stages and 6 can swing to within 0.5 V of either rail while driving a 25 3 load. The low distortion, high output current, and wide output dynamic range make the AD8397 ideal for applications that 0 require a large signal swing into a heavy load. 3 Fabricated with Analog Devices, Inc., high speed extra fast 6 complementary bipolar high voltage (XFCB-HV) process, the high bandwidth and fast slew rate of the AD8397 keep distortion to 9 a minimum. The AD8397 is available in a standard 8-lead SOIC N 12 package and, for higher power dissipating applications, a thermally 0 2 4 6 8 101214161820 enhanced 8-lead SOIC N EP package. Both packages can operate TIME (s) from 40C to +85C. Figure 3. Output Swing, VS = 12 V, RL = 100 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 20052019 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. V (V) V (V) OUT OUT 05069-001 05069-032 05069-031AD8397 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Typical Performance Characteristics ..............................................8 Applications ....................................................................................... 1 Applications Information .............................................................. 11 General Description ......................................................................... 1 Power Supply and Decoupling.................................................. 11 Pin Configuration ............................................................................. 1 Layout Considerations ............................................................... 11 Revision History ............................................................................... 2 Unity-Gain Output Swing ......................................................... 11 Specif icat ions ..................................................................................... 3 Capacitive Load Drive ............................................................... 12 Absolute Maximum Ratings ............................................................ 7 Outline Dimensions ....................................................................... 13 Maximum Power Dissipation ..................................................... 7 Ordering Guide .......................................................................... 13 ESD Caution .................................................................................. 7 REVISION HISTORY 6/2019Rev. A to Rev. B Changed Maximum Output Current Parameter to Peak AC Replaced Figure 2 and Figure 3 ...................................................... 1 Output Current Parameter, Table 3 ................................................. 5 Changes to Table 1 ............................................................................ 3 Added Note 1 and Note 2, Table 3 ................................................... 5 Changes to Table 2 ............................................................................ 4 Changed Maximum Output Current Parameter to Peak AC Changes to Table 3 ............................................................................ 5 Output Current Parameter, Table 4 ................................................. 6 Changes to Table 4 ............................................................................ 6 Added Note 1 and Note 2, Table 4 ................................................... 6 Replaced Figure 9 and Figure 10 .................................................... 8 Changes to Figure 4 ........................................................................... 7 Replaced Figure 12, Figure 14, and Figure 15 ............................... 9 Changed General Description Section to Applications Updated Outline Dimensions ....................................................... 13 Information Section ....................................................................... 11 Updated Outline Dimensions ....................................................... 13 5/2011Rev. 0 to Rev. A Changes to Applications Section and General Description 1/2005Revision 0: Initial Version Section ................................................................................................ 1 Changed Maximum Output Current Parameter to Peak AC Output Current Parameter, Table 1 ................................................ 3 Added Note 1 and Note 2, Table 1 .................................................. 3 Changed Maximum Output Current Parameter to Peak AC Output Current Parameter, Table 2 ................................................ 4 Added Note 1 and Note 2, Table 2 .................................................. 4 Rev. B Page 2 of 16