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Analog Devices Inc./Maxim Integrated MAX4266EUA+
- Part No.:
- MAX4266EUA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4266EUA+.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:4,821
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Product details
Overview
MAX4266EUA+ from Maxim Integrated is a single-channel, ultra-low-distortion voltage-feedback operational amplifier optimized for high-frequency signal conditioning in +5V systems. It features +2V/V minimum stable gain compensation, 350MHz -3dB bandwidth, 900V/µs slew rate, and -90dBc SFDR at 5MHz driving a 100Ω load - making it ideal for high-speed ADC drivers and IF amplifiers in telecom infrastructure.
For engineers reviewing the MAX4266EUA+ datasheet, MAX4266EUA+ pinout, MAX4266EUA+ application, or MAX4266EUA+ equivalent, key selection criteria include its decompensated gain stability, disable-mode power control, 8-pin µMAX® package footprint, and verified performance under 100Ω resistive loading with sub-1% THD+N up to 10MHz.
Technical Context
The MAX4266EUA+ employs proprietary bipolar process technology to achieve ultra-low distortion in single-supply operation, enabling DC-coupled signal paths while maintaining AC fidelity. Its internal compensation ensures stability only at gains ≥+2V/V, distinguishing it from unity-gain-stable variants like MAX4265.
It integrates an active-low DISABLE input that reduces quiescent current to 1.6mA per amplifier and places the output in high-impedance state, supporting power-gating in multi-amplifier signal chains. Output drive capability is ±45mA into 100Ω, with rail-to-rail input common-mode range (VEE + 1.6V to VCC – 1.6V) and output swing within 1.1V of rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 350MHz - supports wideband IF and RF baseband signal paths up to UHF. |
| Slew Rate | 900V/µs - enables clean 1Vp-p step response with ≤15ns 0.1% settling time. |
| SFDR @ 5MHz | -90dBc into 100Ω - meets dynamic range requirements for 14–16-bit ADC front-ends. |
| Input Voltage Noise | 8nV/√Hz at 1kHz - preserves SNR in low-level analog signal amplification stages. |
| Supply Range | +4.5V to +8.0V single supply - compatible with standard +5V logic and mixed-signal systems. |
| Disable Current | 1.6mA per amplifier - reduces system standby power without external switching circuitry. |
| Output Drive | ±45mA into 100Ω - sustains full-scale output swing under heavy resistive loads typical in transmission-line termination. |
Pinout & Package
The MAX4266EUA+ is housed in an 8-pin µMAX® package (2.1mm × 2.1mm, 0.5mm pitch), thermally enhanced for high-frequency operation in space-constrained layouts.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | DISABLE | Active-low enable control; drives output to high-Z when pulled low (≤0.8V). |
| 2 | IN− | Inverting input; accepts differential or single-ended feedback configurations. |
| 3 | IN+ | Noninverting input; supports rail-to-rail common-mode range (VEE + 1.6V to VCC − 1.6V). |
| 4 | VEE | Negative supply pin; tied to ground in single-supply operation. |
| 5 | VCC | Positive supply pin; accepts +4.5V to +8.0V with ceramic bypassing (0.1µF || 1nF). |
| 6 | OUT | Amplifier output; delivers ±45mA into 100Ω with <1.1V headroom to either rail. |
| 7 | N.C. | No internal connection; left unconnected per datasheet guidance. |
| 8 | N.C. | No internal connection; left unconnected per datasheet guidance. |
Key Features
| Feature | Design Value |
|---|---|
| +2V/V Minimum Stable Gain | Enables higher closed-loop bandwidth and improved distortion vs. unity-gain op amps at same supply. |
| Active-Low Disable Mode | Reduces supply current to 1.6mA and places output in high-impedance state for multiplexed signal routing. |
| 8nV/√Hz Input Voltage Noise | Preserves signal integrity in low-amplitude, wideband applications such as RF receiver IF stages. |
| 35dBm IP3 @ 20MHz | Supports linear amplification of two-tone signals in broadband telecom transceivers without intermodulation. |
| 100Ω Load Drive Capability | Eliminates need for external buffer stages when interfacing with 50Ω/75Ω/100Ω transmission lines or ADC inputs. |
Applications
| Base-Station IF Amplifier | High-Speed ADC Driver |
|---|---|
Use Scenario: Amplifying 70–140MHz IF signals in LTE/FDD/TDD basestation receivers prior to digitization. IC Role / Device Role / Timing Role: High-linearity, low-noise gain block with precise amplitude control and minimal group delay variation. Use Value: -90dBc SFDR at 5MHz and -59dBc at 100MHz ensure >14-bit ENOB preservation across full IF band. | Use Scenario: Driving the switched-capacitor input of a 125MSPS, 14-bit pipeline ADC in radar or software-defined radio. IC Role / Device Role / Timing Role: Low-settling-time buffer with 15ns 0.1% settling and ±45mA peak current delivery. Use Value: 900V/µs slew rate and 350MHz bandwidth prevent aperture uncertainty and maintain SNR at Nyquist. |
| RF Telecom Signal Chain | High-Frequency DAC Output Buffer |
Use Scenario: Reconstructing wideband digital IF signals (e.g., 20–100MHz) from a high-speed DAC in microwave backhaul modems. IC Role / Device Role / Timing Role: Post-DAC reconstruction filter bypass amplifier with flat gain response and low harmonic distortion. Use Value: 35dBm IP3 and <0.015% differential gain error preserve EVM in QAM64/256 modulation schemes. | Use Scenario: Isolating and amplifying the current-output of a high-speed DAC (e.g., AD9789) before feeding a 50Ω transmission line. IC Role / Device Role / Timing Role: Fast-settling, low-distortion I-to-V converter with matched output impedance and disable control. Use Value: Enable/disable timing (100ns/750µs) allows synchronized power gating during DAC idle cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6629MA/NOPB | Unity-gain stable; 1.5GHz GBW; higher supply current (12.5mA); no disable function. | Better for general-purpose +2V/V or higher gain, but lacks power-gating capability. | Select when unity-gain stability is required and disable mode is unnecessary. |
| ADA4899-1ACPZ-R7 | Unity-gain stable; 1GHz GBW; lower noise (1nV/√Hz); no disable; requires dual supply for optimal distortion. | Superior noise performance in precision instrumentation, but incompatible with single-supply-only designs. | Select for ultra-low-noise, dual-supply systems where disable functionality is not needed. |
Compared with LMH6629MA/NOPB and ADA4899-1ACPZ-R7, the MAX4266EUA+ uniquely combines decompensated +2V/V stability, integrated disable control, and verified 100Ω drive capability - making it the preferred choice for power-aware, high-linearity IF/ADC driver applications in +5V telecom hardware.
Availability
MAX4266EUA+ is available at Aetrix Electronics and suitable for base-station IF amplifiers, high-speed ADC drivers, and RF telecom signal chains requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for MAX4266EUA+ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) designs high-performance analog and mixed-signal ICs for communications, computing, and industrial applications.
The MAX4265–MAX4270 product line targets high-frequency signal conditioning in telecom infrastructure, delivering ultra-low distortion and wide bandwidth in compact single-supply packages.
FAQ
What is the minimum stable gain for MAX4266EUA+?
The MAX4266EUA+ is compensated for a minimum stable closed-loop gain of +2V/V. It is not unity-gain stable; using it at gains below +2V/V may cause oscillation or degraded phase margin. This decompensation enables higher bandwidth and lower distortion than unity-gain-stable alternatives at the same supply voltage.
Does MAX4266EUA+ support single-supply operation?
Yes, MAX4266EUA+ operates from a single +4.5V to +8.0V supply. The input common-mode range extends from VEE + 1.6V to VCC − 1.6V, and the output swings within 1.1V of each rail - enabling true single-supply signal chain design without level-shifting circuitry.
What is the disable functionality of MAX4266EUA+ and how is it implemented?
The MAX4266EUA+ features an active-low DISABLE pin (Pin 1). When pulled low (≤0.8V), it reduces quiescent current to 1.6mA per amplifier and places the output in high-impedance state. For normal operation, tie DISABLE to VCC or leave floating. Enable time is 100ns; disable time is 750µs.
Can MAX4266EUA+ drive a 50Ω load effectively?
Yes - MAX4266EUA+ is characterized for 100Ω loads but delivers ±45mA output current, enabling robust 50Ω drive with minor gain adjustment. At 50Ω, output swing remains >3.8Vp-p on +5V supply, and SFDR stays above -85dBc at 5MHz, meeting requirements for RF and video line-driving applications.
What package type is used for MAX4266EUA+ and what are its thermal advantages?
MAX4266EUA+ uses the 8-pin µMAX® package (2.1mm × 2.1mm, 0.5mm pitch), which features an exposed pad for enhanced thermal dissipation. With a θJA of 125°C/W and 330mW max power dissipation at +70°C, it supports sustained high-frequency operation in compact PCB layouts without additional heatsinking.
MAX4266EUA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 900V/µs
- Gain Bandwidth Product:
- 700 MHz
- -3db Bandwidth:
- 350 MHz
- Current - Input Bias:
- 3.5 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 28mA
- Current - Output / Channel:
- 100 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 8 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
MAX4266EUA+ FAQ
1.How can I place an order for MAX4266EUA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4266EUA+ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX4266EUA+ reliable?
The price and inventory of MAX4266EUA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4266EUA+ is usually 5 days.
3.What payment methods are accepted for MAX4266EUA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4266EUA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4266EUA+?
MAX4266EUA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4266EUA+ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX4266EUA+?
For technical support, including MAX4266EUA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4266EUA+ requirements.
6.How does Aetrix verify that MAX4266EUA+ is sourced from the original manufacturer or authorized distributors?
All MAX4266EUA+ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX4266EUA+ meets industry standards.
7.What is the process for return or replacement of MAX4266EUA+?
All MAX4266EUA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4266EUA+, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX4266EUA+ part is unused and in its original packaging.
Return procedure for MAX4266EUA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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