Datasheet AD8397 (Analog Devices)

Rail-to-Rail, High Output Current Amplifier Data Sheet AD8397 FEATURES PIN CONFIGURATION Dual operational amplifier OUT1 1 8 +VS Voltage feedback –IN1 2 7 OUT2 Wide supply range from 3 V to 24 V +IN1 3 6 –IN2
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Rail-to-rail output –VS 4 5 +IN2
05069-
Output swing to within 0.5 V of supply rails
Figure 1. 8-Lead SOIC
High linear output current 310 mA peak into 32 Ω 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) (V) T 0 53 V/μs slew rate (RLOAD = 25 Ω) OU V –0.25 –0.50 APPLICATIONS –0.75 Twisted-pair line drivers –1.00 Audio applications –1.25
-031 069
General-purpose ac applications –1.50
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0 2 4 6 8 10 12 14 16 18 20 TIME (µs)
Figure 2. Output Swing, VS = ±1.5 V, RL = 25 Ω
GENERAL DESCRIPTION
The AD8397 comprises two voltage feedback operational amplifiers
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capable of driving heavy loads with excellent linearity. The common-emitter, rail-to-rail output stage surpasses the output
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voltage capability of typical emitter-follower output stages and
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can swing to within 0.5 V of either rail while driving a 25 Ω load. The low distortion, high output current, and wide output
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dynamic range make the AD8397 ideal for applications that
(V) T 0
require a large signal swing into a heavy load.
OU V –3
Fabricated with Analog Devices, Inc., high speed extra fast complementary bipolar high voltage (XFCB-HV) process, the
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high bandwidth and fast slew rate of the AD8397 keep distortion to
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a minimum. The AD8397 is available in a standard 8-lead SOIC_N -032 069 package and, for higher power dissipating applications, a thermally
–12
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0 2 4 6 8 10 12 14 16 18 20
enhanced 8-lead SOIC_N_EP package. Both packages can operate
TIME (µs)
from −40°C to +85°C. Figure 3. Output Swing, VS = ±12 V, RL = 100 Ω
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 ©2005–2019 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 PIN CONFIGURATION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS MAXIMUM POWER DISSIPATION ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS APPLICATIONS INFORMATION POWER SUPPLY AND DECOUPLING LAYOUT CONSIDERATIONS UNITY-GAIN OUTPUT SWING CAPACITIVE LOAD DRIVE OUTLINE DIMENSIONS ORDERING GUIDE