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Analog Devices Inc./Maxim Integrated MAX4269ESD
- Part No.:
- MAX4269ESD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4269ESD.pdf
- Description:
- IC OPAMP VFB 2 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:943
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Product details
Overview
MAX4269ESD from Maxim Integrated is a dual, ultra-low-distortion, voltage-feedback operational amplifier compensated for minimum stable gain of +2V/V, featuring 350MHz -3dB bandwidth, -90dBc SFDR at 5MHz, 900V/µs slew rate, and 8nV/√Hz input voltage noise density. It drives 100Ω loads with ±45mA output capability and supports single-supply operation from +4.5V to +8.0V - ideal for high-frequency ADC drivers in RF telecom infrastructure.
For engineers reviewing the MAX4269ESD datasheet, MAX4269ESD pinout, MAX4269ESD application, or MAX4269ESD equivalent, key selection criteria include its decompensated +2V/V gain stability, disable-mode high-impedance outputs, 16-pin QSOP package thermal performance, and verified SFDR performance under 100Ω load conditions at 5–100MHz.
Technical Context
The MAX4269ESD implements proprietary bipolar process technology optimized for low-voltage, high-bandwidth operation with minimal harmonic distortion. Its decompensated architecture delivers higher loop gain at +2V/V closed-loop gain versus unity-gain-stable variants, enabling superior SFDR and IP3 (35dBm at 20MHz) when driving reactive or resistive loads.
It integrates independent active-low disable inputs per channel (DISABLEA, DISABLEB), enabling multiplexed signal-path control without PCB layout changes. The device maintains 0.1dB gain flatness up to 200MHz and exhibits <0.015% differential gain error at 3.58MHz for video applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 350MHz - enables full-power signal amplification up to 200MHz (FPBW) for wideband IF stages. |
| SFDR @ 5MHz | -90dBc - ensures spurious-free digitization in 14–16-bit ADC front-ends with 100Ω termination. |
| Slew Rate | 900V/µs - supports fast transient response for pulse-shaped RF signals without slewing-induced distortion. |
| Input Voltage Noise | 8nV/√Hz - preserves SNR in low-level signal conditioning paths such as baseband I/Q buffers. |
| Output Drive | ±45mA - sustains linear operation into 100Ω loads while maintaining DC accuracy and AC fidelity. |
| Disable Leakage | ≤2.5µA - minimizes current draw in power-gated channels during sleep mode without signal coupling. |
| Supply Range | +4.5V to +8.0V single supply - simplifies power design in +5V systems with headroom for rail-to-rail swing. |
Pinout & Package
The MAX4269ESD is housed in a 16-pin QSOP package (JEDEC MO-137AA), rated for -40°C to +85°C operation, with 1.27mm pitch and exposed pad for thermal enhancement.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 10 | DISABLEA, DISABLEB | Active-low per-channel disable control; pulls outputs to high-Z state when logic low. |
| 2, 9 | INA-, INB- | Inverting inputs; support differential or single-ended configurations with 40kΩ differential input resistance. |
| 3, 10 | INA+, INB+ | Noninverting inputs; common-mode range extends to within 1.6V of rails for wide dynamic input handling. |
| 4, 5 | VEE | Negative supply pin; tied to ground in single-supply operation; supports dual ±2.25V to ±4.0V. |
| 6, 7 | OUTA, OUTB | Amplifier outputs; deliver ±45mA into 100Ω with 1.1V rail headroom and <0.03° differential phase error. |
| 13, 14 | VCC | Positive supply input; requires local 1nF + 0.1µF ceramic bypassing due to 350MHz bandwidth sensitivity. |
| 11, 12 | N.C. | No internal connection; must remain unconnected per datasheet to avoid parasitic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low distortion | -90dBc SFDR at 5MHz and -59dBc at 100MHz into 100Ω - directly enables high-fidelity RF sampling without post-processing correction. |
| Per-channel disable | Independent DISABLEA/DISABLEB pins reduce system power by >95% per idle channel while preserving signal path isolation. |
| High-speed settling | 15ns to 0.1% for 1V step - meets timing budgets in time-interleaved ADC architectures and burst-mode transceivers. |
| Capacitive load stability | Stable with ≤22pF capacitive loads without external compensation - simplifies layout for PCB trace or filter capacitor interfaces. |
| Video-grade linearity | 0.015% differential gain / 0.03° differential phase at 3.58MHz - qualifies for NTSC/PAL composite video buffering without calibration. |
Applications
| Base-Station IF Amplifier | High-Speed ADC Driver |
|---|---|
Use Scenario: Amplifying 70–140MHz IF signals in LTE macrocell receivers prior to digitization. IC Role / Device Role / Timing Role: Dual-channel wideband gain block with matched channel performance and disable-controlled channel blanking. Use Value: -90dBc SFDR at 5MHz and 350MHz bandwidth preserve EVM in 256-QAM signals; per-channel disable enables TDD slot gating. |
Use Scenario: Driving the input of a 16-bit, 125MSPS pipeline ADC in medical ultrasound beamforming. IC Role / Device Role / Timing Role: Low-noise, low-distortion buffer isolating analog front-end from ADC's dynamic input impedance. Use Value: 8nV/√Hz noise and ±45mA drive ensure full-scale SNR >78dB; 15ns settling guarantees accurate sample capture. |
| RF Telecom Signal Chain | High-Frequency DAC Output Buffer |
Use Scenario: Reconstructing wideband digital IF signals (e.g., 0–100MHz) in software-defined radio transmitters. IC Role / Device Role / Timing Role: Final-stage reconstruction amplifier with high OIP3 and low group delay variation. Use Value: 35dBm IP3 at 20MHz and 200MHz 0.1dB gain flatness minimize spectral regrowth; disable mode enables transmit/receive switching. |
Use Scenario: Buffering the current-output stage of a 14-bit, 500MSPS DAC in radar waveform generation. IC Role / Device Role / Timing Role: High-slew-rate, low-distortion voltage converter with rail-swing optimization. Use Value: 900V/µs slew rate supports 100MHz sine wave reconstruction; ±45mA drive sustains 100Ω termination without clipping. |
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 1.9nV/√Hz noise; no disable function. | Preferred for unity-gain video buffers but unsuitable for +2V/V fixed-gain IF amps requiring disable control. | Select MAX4269ESD when gain ≥+2V/V, SFDR-critical operation, or per-channel power gating is required. |
| ADA4899-1ARZ | Single-channel; 1GHz GBW; 1nV/√Hz noise; no disable; SOIC-8 package. | Used in precision low-noise preamps, not dual-channel RF signal chains needing matched performance. | Choose MAX4269ESD for dual-channel synchronization, disable-enabled TDD, and 100Ω load drive with guaranteed SFDR. |
Compared with LMH6629MA/NOPB and ADA4899-1ARZ, the MAX4269ESD uniquely combines dual-channel integration, +2V/V decompensated stability, per-channel disable, and validated -90dBc SFDR at 5MHz - making it irreplaceable in space-constrained, high-dynamic-range RF receiver modules.
Availability
MAX4269ESD is available at Aetrix Electronics and suitable for RF telecom infrastructure, high-speed data acquisition, and medical imaging systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4269ESD 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 signal-chain applications, with emphasis on low-noise, high-speed, and power-efficient solutions.
The MAX4265–MAX4270 product line targets ultra-low-distortion, wideband amplification in communications infrastructure - specifically engineered for ADC/DAC interface, IF amplification, and RF signal conditioning where SFDR and gain stability are critical.
FAQ
What is the operating supply voltage range for the MAX4269ESD?
The MAX4269ESD operates from a single +4.5V to +8.0V supply or dual ±2.25V to ±4.0V supplies. At +5V supply, it delivers specified AC performance including 350MHz -3dB bandwidth and -90dBc SFDR at 5MHz. Supply rejection remains >60dB up to 10MHz, ensuring robustness against rail noise in dense PCB layouts.
Does the MAX4269ESD support unity-gain configuration?
No, the MAX4269ESD is internally compensated for a minimum stable gain of +2V/V and is not unity-gain stable. Attempting unity-gain operation risks instability and peaking. For unity-gain applications, use the pin-compatible MAX4268ESD instead - both share the same 16-pin QSOP package and disable functionality.
How does the disable function behave on the MAX4269ESD?
The MAX4269ESD features two independent active-low disable inputs (DISABLEA and DISABLEB). When pulled low, each channel places its output in a high-impedance state and reduces quiescent current to 1.6mA per amplifier. Enable time is 100ns; disable time is 750µs - enabling precise TDD slot control in wireless transceivers without external switches.
What load conditions achieve the published -90dBc SFDR spec for the MAX4269ESD?
The -90dBc SFDR at 5MHz is measured with VOUT = 1Vp-p into a 100Ω load terminated at VCC/2, using +5V single supply, TA = +25°C, and AV = +2V/V configuration. Performance degrades above 200MHz FPBW or below 100Ω load - confirming the device's optimization for high-fidelity, moderate-impedance signal routing in telecom IF stages.
Is the MAX4269ESD suitable for video signal amplification?
Yes - the MAX4269ESD delivers 0.015% differential gain and 0.03° differential phase error at 3.58MHz with 150Ω load, meeting NTSC broadcast standards. Its wide 350MHz bandwidth and low distortion also support HD-SDI equalization and RGB component video buffering when configured with appropriate gain and termination.
MAX4269ESD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- 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 (x2 Channels)
- Current - Output / Channel:
- 45 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:
- 14-SOIC
MAX4269ESD FAQ
1.How can I place an order for MAX4269ESD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4269ESD 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 MAX4269ESD reliable?
The price and inventory of MAX4269ESD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4269ESD is usually 5 days.
3.What payment methods are accepted for MAX4269ESD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4269ESD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4269ESD?
MAX4269ESD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4269ESD 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 MAX4269ESD?
For technical support, including MAX4269ESD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4269ESD requirements.
6.How does Aetrix verify that MAX4269ESD is sourced from the original manufacturer or authorized distributors?
All MAX4269ESD 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 MAX4269ESD meets industry standards.
7.What is the process for return or replacement of MAX4269ESD?
All MAX4269ESD units undergo pre-shipment inspection (PSI). If there is an issue with MAX4269ESD, 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 MAX4269ESD part is unused and in its original packaging.
Return procedure for MAX4269ESD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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