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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 VOLTAGE FEEDBACK 1 CIRC 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:3,070
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Product details
Overview
MAX4266EUA from Maxim Integrated is a single-channel, ultra-low-distortion voltage-feedback operational amplifier compensated for minimum stable gain of +2V/V, featuring 350MHz -3dB bandwidth, 900V/µs slew rate, and -90dBc SFDR at 5MHz when driving 100Ω. It operates from +4.5V to +8.0V single supply, delivers ±45mA output current, and includes active-low disable mode for power savings in high-frequency signal chain applications including IF amplifiers and ADC drivers.
For engineers reviewing the MAX4266EUA datasheet, MAX4266EUA pinout, MAX4266EUA application, or MAX4266EUA equivalent, this op amp is selected for wideband, low-noise, low-distortion analog signal conditioning where gain stability ≥+2V/V, fast settling (15ns to 0.1%), and high output drive into reactive loads are critical - especially in RF telecom front-ends and high-speed data converter interfaces.
Technical Context
The MAX4266EUA uses proprietary bipolar process technology to achieve ultra-low distortion in single-supply operation, with input voltage noise density of 8nV/√Hz and third-harmonic distortion of -81dBc at 5MHz. Its decompensated architecture enables higher loop gain at +2V/V closed-loop gain versus unity-gain-stable variants, improving SFDR and IP3 performance.
It features an active-low DISABLE pin that places outputs in high-impedance state while reducing quiescent current to 1.6mA per amplifier; enable time is 100ns and disable time is 750µs. Input common-mode range extends from (VEE + 1.6V) to (VCC – 1.6V), and output swing reaches within 1.1V of rails under 100Ω load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 350MHz - supports baseband-to-IF signal amplification up to UHF without gain roll-off |
| Slew Rate | 900V/µs - enables clean 1V step response in ≤1ns with <0.1% settling in 15ns |
| SFDR @ 5MHz | -90dBc into 100Ω - ensures minimal spurious content in sensitive receiver chains |
| IP3 @ 20MHz | 35dBm - provides robust linearity for two-tone RF signals in telecom front-ends |
| Supply Range | +4.5V to +8.0V single supply - simplifies power design vs. dual-rail alternatives |
| Output Drive | ±45mA - drives 100Ω loads directly without external buffers in ADC/DAC interface stages |
| Disable Current | 1.6mA per amplifier - reduces system power during idle cycles without sacrificing wake-up speed |
Pinout & Package
The MAX4266EUA is housed in an 8-pin µMAX® package (3mm × 3mm, 0.8mm height), thermally enhanced for high-speed op amp operation with exposed paddle grounded for optimal RF performance.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | DISABLE | Active-low enable control; logic low places output in high-Z state and cuts supply current |
| 2 | IN– | Inverting input; differential pair input node with 40kΩ differential resistance |
| 3 | IN+ | Noninverting input; common-mode range extends 1.6V beyond rails for flexible biasing |
| 4 | VEE | Negative supply pin; connect to ground in single-supply operation |
| 5 | VCC | Positive supply pin; accepts +4.5V to +8.0V; requires local 1nF + 0.1µF bypass |
| 6 | OUT | Amplifier output; capable of ±45mA sourcing/sinking into 100Ω load |
| 7 | N.C. | No internal connection; leave unconnected or tie to ground per layout best practice |
| 8 | N.C. | No internal connection; same as Pin 7 - no routing required |
Key Features
| Feature | Design Value |
|---|---|
| Gain Stability | Compensated for minimum +2V/V closed-loop gain - enables higher bandwidth than unity-gain-stable variants |
| Distortion Performance | -90dBc SFDR at 5MHz and -59dBc at 100MHz into 100Ω - preserves signal integrity in wideband receivers |
| High-Speed Enable/Disable | 100ns enable time and 750µs disable time - supports rapid power gating in burst-mode systems |
| Input Noise Density | 8nV/√Hz at 1kHz - minimizes added noise in low-level signal amplification paths |
| Capacitive Load Drive | Stable with ≤15pF capacitive load; isolation resistor option supports >100pF loads |
Applications
| Base-Station IF Amplifier | High-Frequency ADC Driver |
|---|---|
Use Scenario: Amplifying 70MHz–250MHz intermediate frequency signals in LTE/WCDMA basestation transceivers before digitization. IC Role / Device Role / Timing Role: High-linearity, wideband gain block placed between mixer and ADC input to preserve SNR and dynamic range. Use Value: 35dBm IP3 and -90dBc SFDR at 5MHz ensure minimal intermodulation distortion in multi-carrier environments. |
Use Scenario: Buffering and driving the analog input of 14-bit, 105MSPS ADCs in software-defined radio and test equipment. IC Role / Device Role / Timing Role: Low-noise, fast-settling driver delivering full-scale 1Vp-p signals with <15ns 0.1% settling. Use Value: 900V/µs slew rate and ±45mA output drive eliminate droop and maintain accuracy across 100Ω ADC input impedance. |
| RF Telecom Signal Chain | High-Speed DAC Output Buffer |
Use Scenario: Reconstructing wideband modulated waveforms (e.g., QAM-256, OFDM) in point-to-point microwave radios. IC Role / Device Role / Timing Role: Final-stage analog output amplifier shaping spectral purity before antenna coupling. Use Value: Differential gain error <0.012% and phase error <0.008° at 3.58MHz ensure minimal video/RF waveform distortion. |
Use Scenario: Isolating and amplifying DAC output in high-fidelity digital audio and arbitrary waveform generators. IC Role / Device Role / Timing Role: Low-distortion, rail-to-rail-capable buffer preventing DAC output loading and maintaining THD+N <0.001%. Use Value: 8nV/√Hz input noise and -81dBc third-harmonic distortion preserve fidelity in 20Hz–20kHz and extended ultrasonic bands. |
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 unity-gain configurations; unsuitable where +2V/V minimum gain or power gating is required | Select if unity-gain stability and maximum bandwidth outweigh disable functionality and lower quiescent current needs |
| ADA4898-1ARZ | Unity-gain stable; 290MHz -3dB BW; lower noise (1.1nV/√Hz); dual supply only (±5V) | Preferred for precision low-noise DC-coupled systems; incompatible with single +5V operation | Choose for ultra-low-noise, DC-accurate applications where dual supply and unity gain are acceptable |
Compared with LMH6629MA/NOPB and ADA4898-1ARZ, the MAX4266EUA uniquely combines +2V/V minimum gain compensation, active disable, single-supply operation down to +4.5V, and optimized SFDR for RF signal chains - making it the only choice when gain stability, power gating, and wideband distortion performance must coexist in compact 3mm × 3mm packaging.
Availability
MAX4266EUA is available at Aetrix Electronics and suitable for RF telecom infrastructure, high-speed data acquisition, and precision instrumentation 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 demanding applications in communications, industrial, and automotive markets.
The MAX4265–MAX4270 family was engineered specifically for ultra-low-distortion, wideband signal conditioning in single-supply RF and high-speed data converter interfaces - prioritizing SFDR, IP3, and fast enable/disable over DC precision.
FAQ
What is the minimum stable gain configuration for MAX4266EUA?
The MAX4266EUA is internally compensated for a minimum stable closed-loop gain of +2V/V. It is not unity-gain stable; attempting unity-gain operation may cause oscillation or degraded AC performance. For +1V/V applications, use the MAX4265EUA instead. This gain constraint directly enables its 350MHz bandwidth and superior SFDR at +2V/V configurations.
Does MAX4266EUA support single-supply operation?
Yes, the MAX4266EUA operates from a single +4.5V to +8.0V supply. In this configuration, VEE is connected to ground, and the input common-mode range extends from +1.6V to (VCC – 1.6V). The output swings to within 1.1V of each rail into 100Ω, enabling true single-supply signal chain design without level-shifting circuitry.
What is the purpose of the DISABLE pin on MAX4266EUA?
The DISABLE pin (Pin 1) is an active-low control that places the amplifier output in high-impedance state and reduces quiescent supply current to 1.6mA per amplifier. It supports rapid power gating in burst-mode systems, with 100ns enable time and 750µs disable time. Driving DISABLE low eliminates output loading and saves power without requiring external switches or relays.
Can MAX4266EUA drive a 50Ω transmission line directly?
Yes - the MAX4266EUA delivers ±45mA output current and maintains low distortion into 100Ω loads; it can drive 50Ω lines with appropriate termination. For back-terminated 50Ω lines, connect the output directly to the line with 50Ω series resistor at source and 50Ω shunt at load. This preserves signal integrity and avoids reflections while leveraging the device's 900V/µs slew rate and 350MHz bandwidth.
What are the key layout recommendations for MAX4266EUA?
Use a solid ground plane beneath the µMAX package, bypass VCC with 1nF ceramic in parallel with 0.1µF–1µF ceramic close to Pins 4 (VEE) and 5 (VCC), route DISABLE with short traces to avoid noise coupling, and keep IN+, IN–, and OUT traces symmetric and short. The exposed paddle must be soldered to ground for thermal and RF performance; avoid thermal relief on paddle connections.
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:
- Tube
- 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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