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AD8040:  Low-Power High-Speed Rail-to-Rail Input/Output Op Amplifier

Product Details


The AD8040 is a quad, rail-to-rail input and output high speed amplifier with a quiescent current of only 1.3 mA per amplifier. Despite its low power consumption, the amplifier provides excellent performance with 125MHz small signal bandwidth and 60 V/µs slew rate. ADI's proprietary XFCB process enables high speed and high performance on low power.

This amplifier exhibits true single-supply operation with rail-to-rail input and output performance for supply voltages ranging from 2.7V to 12V. The input voltage range extends 200 mV beyond each rail without phase reversal. The dynamic range of the output extends to within 40 mV of each rail.

The AD8040 provides excellent signal quality with minimal power dissipation. At G=+1, SFDR is -72dBc at 1MHz and settling time to 0.1% is only 80 ns. Low distortion and fast settling performance makes this amplifier a suitable driver for single-supply A/D converters.

The versatility of the AD8040 allows the user to operate the amplifier on a wide range of supplies while consuming less than 6.5 mW of power. This feature extends the operation time in applications ranging from battery-powered systems with large bandwidth requirements to high speed systems where component density requires lower power dissipation.

The amplifier is rated over the extended industrial temperature range, -40°C to +125°C.

FEATURES and BENEFITS

  • Low Power
    1.3mA supply current/amplifier
  • High Speed
    125MHz, -3 dB Bandwidth (G=+1)
    60V/µs Slew Rate
    80ns Settling Time to 0.1%
  • Wide Supply Range: 2.7V to 12V
  • Offset voltage: 6 mV max
  • Rail-to-Rail Input and Output
    No phase reversal, inputs
    200 mV beyond rails
  • Low input bias current
    +0.7µA to -1.5 µA
  • Small Packaging
    SOIC-14, TSSOP-14

Pin Configuration Diagram for AD8040

Documentation

Title Content Type File Type
AD8029/AD8030/AD8040: Low Power, High Speed Rail-to-Rail Input/Output Amplifier Data Sheet  (Rev B, 10/2012) (pdf, 649 kB) Data Sheets PDF
AN-649: Using the Analog Devices Active Filter Design Tool  (pdf, 5301 kB) Application Notes 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
MT-060: Choosing Between Voltage Feedback and Current Feedback Op Amps  (pdf, 62 kB) Tutorials PDF
MT-059: Compensating for the Effects of Input Capacitance on VFB and CFB Op Amps Used in Current-to-Voltage Converters  (pdf, 69 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-111: Universal Evaluation Board for Quad, High Speed Op Amps Offered in 14-Lead SOIC Packages  (pdf, 164 kB) User Guides PDF
UG-020: Universal Evaluation Board for Quad High Speed Op Amps Offered in 14-Lead TSSOP Packages  (pdf, 233 kB) User Guides PDF
High Speed Amplifiers Selection Table  (pdf, 77 kB) Product Selection Guide PDF
When running on a single supply, my op amp's output is highly distorted. Could this be some kind of headroom issue? FAQs/RAQs HTML
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
AD8040 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.

SampleSample & Buy

Price, packaging, availability

AD8040 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD8040ARU-REEL Status: Last Time Buy 14 ld TSSOP 14 Ind Reel, 2500 - $1.87 N  Material Info PCN/PDN Purchase
AD8040ARUZ Status: Production 14 ld TSSOP 14 Ind Tube, 96 - - Y  Material Info PCN Purchase Sample
AD8040ARUZ-REEL Status: Last Time Buy 14 ld TSSOP 14 Ind Reel, 2500 - $1.62 Y  Material Info PCN/PDN Purchase
AD8040ARUZ-REEL7 Status: Production 14 ld TSSOP 14 Ind Reel, 1000 - $1.62 Y  Material Info PCN Purchase
AD8040ARZ Status: Production 14 ld SOIC 14 Ind Tube, 56 $1.90 $1.62 Y  Material Info PCN Purchase Sample
AD8040ARZ-REEL Status: Production 14 ld SOIC 14 Ind Reel, 2500 - $1.62 Y  Material Info PCN Purchase
AD8040ARZ-REEL7 Status: Production 14 ld SOIC 14 Ind Reel, 1000 - $1.62 Y  Material Info PCN Purchase
AD8040WARUZ-REEL7 Status: Production TSSOP 4.4 MM 14 Auto Reel, 1000 - $1.98 Y  Material Info Notify Me Purchase Sample
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.

AD8040 Evaluation Boards
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD8040AR-EBZ Status: Production 14-Lead SOIC Bare Evaluation Board $18.25 Yes -
AD8040ARZ Status: Production 14-Lead SOIC $2.67 Yes -
AD8040ARU-EBZ Status: Production 14-Lead TSSOP Bare Evaluation Board $18.25 Yes -
AD8040ARUZ Status: Production 14-Lead TSSOP 4.4 MM - 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.

Check Inventory & Purchase

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