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
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.
Markets and Technologies
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
This evaluation board is designed to help users evaluate the AD8040. The evaluation board is a bare board: there are no components or amplifiers soldered to the board. These parts must be obtained separately from the table below or on the product page. Free samples may also be requested. The unpopulated board enables users to quickly customize and prototype a variety of op amp circuits, which minimizes risk and reduces time to market.
The User Guide contains all the required documentation to build the board, including schematics, assembly drawing, and Bill of Materials.
Documentation & Resources
AN-402: Replacing Output Clamping Op Amps with Input Clamping Amps2/14/201555 kB
AN-581: Biasing and Decoupling Op Amps in Single Supply Applications (Rev. 0)2/14/2015166 kB
MT-053: Op Amp Distortion: HD, THD, THD + N, IMD, SFDR, MTPR2/14/2015104 kB
MT-052: Op Amp Noise Figure: Don't Be Misled2/14/201560 kB
MT-050: Op Amp Total Output Noise Calculations for Second-Order System2/14/201538 kB
MT-049: Op Amp Total Output Noise Calculations for Single-Pole System2/14/201540 kB
MT-048: Op Amp Noise Relationships: 1/f Noise, RMS Noise, and Equivalent Noise Bandwidth2/14/201581 kB
MT-047: Op Amp Noise2/14/201572 kB
MT-060: Choosing Between Voltage Feedback and Current Feedback Op Amps2/14/201562 kB
MT-059: Compensating for the Effects of Input Capacitance on VFB and CFB Op Amps Used in Current-to-Voltage Converters2/14/201569 kB
MT-033: Voltage Feedback Op Amp Gain and Bandwidth2/14/2015251 kB
MT-058: Effects of Feedback Capacitance on VFB and CFB Op Amps2/14/201566 kB
MT-056: High Speed Voltage Feedback Op Amps2/3/2009109 kB
MT-032: Ideal Voltage Feedback (VFB) Op Amp12/11/200865 kB
High Speed Amplifiers Selection Table2/27/200877 kB
Tools & Simulations
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Models for the following parts are available in LTspice:
Use the Analog Filter Wizard to design low-pass, high-pass, or band-pass filters with actual op amps in minutes. As you progress through the design process, you can observe the characteristics of your filter design from ideal specifications to real world circuit behavior. Quickly evaluate the tradeoffs in op amp specifications - including gain-bandwidth, noise, and supply current – to determine the best filter design for your requirements.
Use Photodiode Wizard to design a transimpedance amplifier circuit to interface with a photodiode. Select a photodiode from the library included in the tool, or enter custom photodiode specifications. Quickly observe tradeoffs between Bandwidth, Peaking (Q), and ENOB/SNR. Modify circuit parameters, and immediately see results in plots for pulse response, frequency response, and noise gain.
This tool estimates die temperature and power dissipation based on the supply voltages, ambient temperature, load characteristics, and package thermal data.
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
|Part Number||Material Declaration||Reliability Data||Pin/Package Drawing||CAD Symbols, Footprints & 3D Models|
|AD8040ARUZ||Material Declaration||Reliability Data||14-Lead TSSOP|
|AD8040ARUZ-REEL7||Material Declaration||Reliability Data||14-Lead TSSOP|
|AD8040ARZ||Material Declaration||Reliability Data||14-Lead SOIC|
|AD8040ARZ-REEL||Material Declaration||Reliability Data||14-Lead SOIC|
|AD8040ARZ-REEL7||Material Declaration||Reliability Data||14-Lead SOIC|
|AD8040WARUZ-REEL7||Material Declaration||Reliability Data||14-Lead TSSOP|
|Wafer Fabrication Data|
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Sample & Buy
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Buy Now Pricing
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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.