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AD8397:  Rail-to-Rail, High Output Current Amplifier

Product Details


The AD8397 has two voltage feedback operational amplifiers capable of driving heavy loads with excellent linearity. The common-emitter, rail-to-rail output stage surpasses the output voltage capability of typical emitter-follower output stages and 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 dynamic range make the AD8397 ideal for applications that require a large signal swing into a heavy load.

Fabricated with ADI's high speed eXtra Fast Complementary Bipolar High Voltage (XFCB-HV) process, the high bandwidth and fast slew rate of the AD8397 keep distortion to a minimum while also dissipating minimum power. The AD8397 is available in a standard 8-lead SOIC package and, for higher power applications, a thermally enhanced 8-lead SOIC EPAD package. Both packages can operate from -40°C to +85°C.

FEATURES and BENEFITS

  • Dual operational amplifier
  • Voltage feedback
  • Wide supply range: from 3 V to 24 V
  • Rail-to-rail output
    Output swing to within 0.5 V of supply rails
  • High linear output current
    310 mA peak into 32 Ω on ±12 V supplies while maintaining -80 dBc SFDR
  • Low noise
    4.5 nV/√Hz voltage noise density @ 100 kHz
    1.5 pA/√Hz current noise density @ 100 kHz
  • High speed
    69 MHz bandwidth (G = 1, -3 dB)
    53 V/µs slew rate (RLOAD = 25 Ω)

Pin Configuration Diagram for AD8397

Documentation

Title Content Type File Type
AD8397: Rail-to-Rail, High Output Current Amplifier Data Sheet (Rev A, 05/2011) (pdf, 373 kB) Data Sheets PDF
AN-581: Biasing and Decoupling Op Amps in Single Supply Applications  (pdf, 166 kB) Application Notes PDF
AN-402: Replacing Output Clamping Op Amps with Input Clamping Amps  (pdf, 55 kB)
So far most clamping amplifiers have relied upon an output clamping architecture and are called output clamp amps (OCAs). A new architecture called an input clamp amp (ICA) offers superior clamping accuracy and lower distortion.
Application Notes PDF
AN-417: Fast Rail-to-Rail Operational Amplifiers Ease Design Constraints in Low Voltage High Speed Systems  (pdf, 228 kB)
Movement towards lower power supply voltages is driven by the demand that systems consume less and less power coupled with the desire to reduce the number of power supply voltages in the system. The following applications are discussed: Single-Ended and Differential Input ADC Input Circuits, Video Line Driver, Active Filter, HDSL Transceiver, and Transformer Drive Circuits.
Application Notes PDF
CN0276: High Performance, 10-Bit to 16-Bit Resolver-to-Digital Converter  (pdf, 531 kB) Circuit Note PDF
MT-060: Choosing Between Voltage Feedback and Current Feedback Op Amps  (pdf, 62 kB) Tutorials PDF
MT-058: Effects of Feedback Capacitance on VFB and CFB Op Amps  (pdf, 66 kB) Tutorials PDF
MT-056: High Speed Voltage Feedback Op Amps  (pdf, 109 kB) Tutorials PDF
MT-053: Op Amp Distortion: HD, THD, THD + N, IMD, SFDR, MTPR  (pdf, 104 kB) Tutorials PDF
MT-052: Op Amp Noise Figure: Don't Be Misled  (pdf, 60 kB) Tutorials PDF
MT-050: Op Amp Total Output Noise Calculations for Second-Order System  (pdf, 38 kB) Tutorials PDF
MT-049: Op Amp Total Output Noise Calculations for Single-Pole System  (pdf, 40 kB) Tutorials PDF
MT-048: Op Amp Noise Relationships: 1/f Noise, RMS Noise, and Equivalent Noise Bandwidth  (pdf, 81 kB) Tutorials PDF
MT-047: Op Amp Noise  (pdf, 72 kB) Tutorials PDF
MT-033: Voltage Feedback Op Amp Gain and Bandwidth  (pdf, 251 kB) Tutorials PDF
MT-032: Ideal Voltage Feedback (VFB) Op Amp  (pdf, 65 kB) Tutorials PDF
A Stress-Free Method for Choosing High-Speed Op Amps
A decision-tree approach to making the critical decision about high-speed op amp selection, including a look at some helpful tools.
Webcasts WEBCAST
UG-128: Universal Evaluation Board for Dual High Speed Op Amps in SOIC Packages  (pdf, 208 kB) User Guides PDF
High Speed Amplifiers Selection Table  (pdf, 77 kB) Product Selection Guide PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
dBm/dBu/dBv Calculator
This calculator converts between standard units of power measurement and signal strength.
Utilities and Conversions HTML
Power Dissipation vs Die Temp
This tool estimates die temperature and power dissipation based on the supply voltages, ambient temperature, load characteristics, and package thermal data.
Utilities and Conversions HTML
ADIsimOpAmp™
This tool will help with the selection, evaluation and troubleshooting of voltage feedback Op-Amps. It uses typical data to model the behavior of a selected amplifier. It allows a user to select an amplifier, configure a circuit, apply a signal and evaluate the performance. It is useful for checking an amplifier's spec's such as Bandwidth, Slew Rate, Input/Output Range, Gain Error, Load Current, Stability Issues and DC Errors in a given circuit.
ADIsim Design/Simulation Tools HTML
OpAmp Stability
An applet for demonstrating stability effects in opamp buffers.
Design Calculators HTML
AD8397 SPICE Macro Model SPICE Models HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

Product Recommendations & Reference Designs

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Price, packaging, availability

AD8397 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD8397ACPZ-R7 Status: Pre-Release LFCSP:LEADFRM CHIP SCALE 8 Reel - - Y  Material Info Notify Me Contact ADI
AD8397ARDZ Status: Production 8 ld SOIC-EP (2.41mm Exposed pad) 8 Ind Tube, 98 $2.51 $2.37 Y  Material Info PCN Purchase Sample
AD8397ARDZ-REEL Status: Production 8 ld SOIC-EP (2.41mm Exposed pad) 8 Ind Reel, 2500 - $2.37 Y  Material Info PCN Purchase
AD8397ARDZ-REEL7 Status: Production 8 ld SOIC-EP (2.41mm Exposed pad) 8 Ind Reel, 1000 - $2.37 Y  Material Info PCN Purchase
AD8397ARZ Status: Production 8 ld SOIC 8 Ind Tube, 98 $2.45 $2.32 Y  Material Info Notify Me Purchase Sample
AD8397ARZ-REEL Status: Production 8 ld SOIC 8 Ind Reel, 2500 - $2.32 Y  Material Info Notify Me Purchase
AD8397ARZ-REEL7 Status: Production 8 ld SOIC 8 Ind Reel, 1000 - $2.32 Y  Material Info Notify Me Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

AD8397 Evaluation Boards
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD8397ARD-EBZ Status: Production 8-Lead SOIC Bare Evaluation Board $18.25 Yes -
AD8397ARDZ Status: Production 8-Lead w/Thermal Pad $2.75 Yes -
AD8397AR-EBZ Status: Production 8-Lead SOIC Bare Evaluation Board $18.25 Yes -
AD8397ARZ Status: Production 8-Lead SOIC $2.70 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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