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Analog Devices Inc./Maxim Integrated MAX4266ESA
- Part No.:
- MAX4266ESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4266ESA.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,760
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Product details
Overview
MAX4266ESA 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 into 100Ω - optimized for high-frequency ADC drivers and IF amplifiers in telecom signal chains.
For engineers reviewing the MAX4266ESA datasheet, MAX4266ESA pinout, MAX4266ESA application, or MAX4266ESA equivalent, this op amp delivers verified distortion performance, disable-mode power control, and µMAX® package compatibility for space-constrained RF front-ends and high-speed data acquisition systems.
Technical Context
The MAX4266ESA uses proprietary bipolar process technology to achieve low-voltage single-supply operation (+4.5V to +8.0V) while maintaining DC accuracy and AC linearity up to 100MHz. Its decompensated architecture enables higher loop gain at AV = +2V/V versus unity-gain variants, directly improving SFDR and harmonic suppression.
It integrates an active-low DISABLE input that reduces quiescent current to 1.6mA per amplifier and places the output in high-impedance state with 100ns enable time and 750µs disable time - critical for time-multiplexed signal paths and power-gated receiver stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 350MHz at AV = +2V/V, RL = 100Ω - supports wideband IF and baseband signal conditioning without gain peaking. |
| Slew Rate | 900V/µs - enables clean 1Vp-p step response with ≤15ns 0.1% settling time, essential for fast ADC buffer applications. |
| SFDR | -90dBc at fC = 5MHz, -59dBc at fC = 100MHz (1Vp-p, 100Ω) - meets LTE/WiMAX spectral purity requirements for direct-conversion receivers. |
| Input Voltage Noise | 8nV/√Hz at 1kHz - low enough to preserve SNR in 14–16-bit ADC driver stages without noise floor degradation. |
| Output Drive | ±45mA into 100Ω - sustains full swing at high frequencies while driving heavy resistive loads typical in video and RF test equipment. |
| Disable Mode Current | 1.6mA per amplifier - reduces total system power by >90% during idle cycles in burst-mode receivers or TDD transceivers. |
| Supply Range | +4.5V to +8.0V single supply or ±2.25V to ±4.0V dual supply - compatible with standard 5V and 3.3V logic rails and mixed-signal SoC interfaces. |
Pinout & Package
MAX4266ESA is housed in an 8-pin µMAX® package (pin-compatible with SO-8), measuring 3mm × 3mm × 0.8mm with exposed pad for thermal enhancement. The package supports high-density PCB layouts and offers superior RF isolation versus standard SOIC.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | DISABLE | Active-low digital control input; pulls output to high-Z when driven to VEE (0V); enables fast power gating in multi-channel systems. |
| 2 | IN− | Inverting input terminal; accepts differential or single-ended signals with common-mode range from (VEE + 1.6V) to (VCC − 1.6V). |
| 3 | IN+ | Noninverting input terminal; used for gain-setting in noninverting configurations or as summing node in inverting topologies. |
| 4 | VEE | Negative power supply pin; tied to ground in single-supply operation; must be bypassed with 0.1µF ceramic capacitor. |
| 5 | VCC | Positive power supply pin; accepts +4.5V to +8.0V; requires parallel 1nF + 0.1µF ceramic decoupling for broadband stability. |
| 6 | OUT | Amplifier output; drives 100Ω load to within 1.1V of rails; exhibits 0.035Ω closed-loop output resistance for minimal gain error. |
| 7 | N.C. | No internal connection; left unconnected on PCB to avoid parasitic coupling or EMI pickup in RF-sensitive designs. |
| 8 | N.C. | No internal connection; electrically isolated; recommended to tie to ground plane only if required for mechanical symmetry. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low distortion at high frequency | −90dBc SFDR @ 5MHz enables clean signal reconstruction in 100MSps+ ADC interfaces without post-processing correction. |
| High-speed disable mode | 100ns enable / 750µs disable timing allows precise synchronization with RF switch control signals in TDD architectures. |
| Stable gain ≥ +2V/V | Optimized compensation eliminates need for external compensation networks in AV = +2, +3, or +4 configurations - simplifies layout. |
| Low-noise bipolar input stage | 8nV/√Hz input voltage noise + 1pA/√Hz current noise preserves dynamic range in wideband photodiode or antenna preamp front-ends. |
| Robust capacitive load drive | Stable with up to 15pF load; isolation resistor guidance provided for >15pF (e.g., 6Ω for 100pF) - supports coaxial cable and ADC input capacitance. |
Applications
| Base-Station IF Amplifier | High-Frequency ADC Driver |
|---|---|
|
Use Scenario: Amplifying 70–140MHz IF signals in LTE macrocell receivers prior to digitization. IC Role / Device Role / Timing Role: High-linearity gain block providing +2V/V fixed gain with minimal group delay variation across channel bandwidth. Use Value: −90dBc SFDR at 100MHz ensures adjacent-channel leakage ratio (ACLR) compliance without digital predistortion overhead. |
Use Scenario: Buffering analog inputs to 14-bit, 125MSPS pipeline ADCs in software-defined radio front-ends. IC Role / Device Role / Timing Role: Low-settling-time driver delivering full-scale 1Vp-p steps with ≤15ns 0.1% settling to meet aperture jitter specs. Use Value: 900V/µs slew rate and ±45mA drive capability prevent missing codes due to incomplete charging of ADC sample-and-hold capacitor. |
| RF Telecom Signal Processing | High-Speed DAC Output Buffer |
|
Use Scenario: Reconstructing wideband modulated waveforms (e.g., 20MHz LTE carriers) after digital upconversion. IC Role / Device Role / Timing Role: Post-DAC reconstruction filter bypass amplifier operating in linear region up to Nyquist frequency. Use Value: 350MHz −3dB bandwidth and flat gain response (<0.1dB ripple to 100MHz) maintain EVM <1.5% at 256-QAM. |
Use Scenario: Isolating and amplifying DAC outputs in high-speed arbitrary waveform generators (AWGs) with >100MHz update rates. IC Role / Device Role / Timing Role: Unity- or low-gain buffer with disable control to suppress DAC switching transients during reconfiguration. Use Value: Active-low DISABLE pin enables glitch-free output muting during DAC code transitions, eliminating spurious spectral artifacts. |
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 |
|---|---|---|---|
| AD8009ARZ | Unity-gain stable; 1GHz GBW; higher 2.2nV/√Hz noise; no disable function; SO-8 package. | Preferred for general-purpose wideband gain blocks where disable mode is unnecessary and higher bandwidth is required. | Select AD8009ARZ when system design prioritizes maximum small-signal bandwidth over SFDR and power-gating capability. |
| LMH6629MA/NOPB | Unity-gain stable; 720MHz GBW; 1.9nV/√Hz noise; no disable; 8-pin SOIC; higher quiescent current (12.5mA). | Better suited for DC-coupled precision applications requiring lower noise floor and rail-to-rail output swing. | Choose LMH6629MA/NOPB for applications demanding lowest possible input-referred noise in sub-100MHz bands, accepting higher power draw. |
Compared with AD8009ARZ and LMH6629MA/NOPB, the MAX4266ESA trades raw bandwidth for superior distortion performance at IF frequencies and adds system-level power control via its dedicated disable pin - making it uniquely suitable for battery-aware or burst-mode RF signal chains.
Availability
MAX4266ESA is available at Aetrix Electronics and suitable for base-station IF amplifiers, high-frequency ADC drivers, RF telecom signal processing, and high-speed DAC buffers requiring stable component supply across industrial temperature ranges (−40°C to +85°C).
Supply support for MAX4266ESA 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, emphasizing integration, power efficiency, and signal integrity.
The MAX4265–MAX4270 product line targets high-speed, low-distortion signal conditioning in RF infrastructure and test equipment - specifically engineered to replace discrete gain stages with monolithic solutions preserving SFDR and settling fidelity.
FAQ
What is the minimum stable gain configuration for MAX4266ESA?
The MAX4266ESA is internally compensated for a minimum stable closed-loop gain of +2V/V. It is not unity-gain stable; attempting AV = +1V/V may cause oscillation or degraded phase margin. For unity-gain applications, use the MAX4265ESA instead. This gain constraint directly enables its 350MHz bandwidth and improved SFDR versus unity-gain variants.
Does MAX4266ESA support single-supply operation?
Yes, MAX4266ESA operates from a single +4.5V to +8.0V supply, with VEE connected to ground. Its input common-mode range extends from (VEE + 1.6V) to (VCC − 1.6V), and output swings to within 1.1V of each rail - enabling true single-supply operation in 5V systems without level-shifting circuitry.
How does the DISABLE pin function on MAX4266ESA?
The DISABLE pin on MAX4266ESA is active-low: driving it to VEE (0V) disables the amplifier, reducing quiescent current to 1.6mA and placing the output in high-impedance state. When left floating or pulled to VCC, the device operates normally. Enable time is 100ns; disable time is 750µs - critical for timing-critical power-gated systems.
What load impedance can MAX4266ESA drive while maintaining specified SFDR?
MAX4266ESA maintains its −90dBc SFDR at 5MHz and −59dBc at 100MHz specifically into a 100Ω load terminated at VCC/2. Driving lighter loads (e.g., 50Ω) increases distortion; heavier loads (e.g., 600Ω) improve SFDR but reduce bandwidth. For optimal SFDR, always terminate into 100Ω as specified in the AC Electrical Characteristics table.
Is MAX4266ESA pin-compatible with other devices in the MAX4265–MAX4270 family?
Yes, MAX4266ESA shares identical 8-pin µMAX® pinout with MAX4265ESA and MAX4267ESA - including DISABLE, IN−, IN+, VEE, VCC, OUT, and two N.C. pins. This allows drop-in replacement within the same gain-compensation class, provided PCB layout accommodates the µMAX® footprint and thermal pad requirements.
MAX4266ESA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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-SOIC
MAX4266ESA FAQ
1.How can I place an order for MAX4266ESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4266ESA 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 MAX4266ESA reliable?
The price and inventory of MAX4266ESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4266ESA is usually 5 days.
3.What payment methods are accepted for MAX4266ESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4266ESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4266ESA?
MAX4266ESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4266ESA 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 MAX4266ESA?
For technical support, including MAX4266ESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4266ESA requirements.
6.How does Aetrix verify that MAX4266ESA is sourced from the original manufacturer or authorized distributors?
All MAX4266ESA 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 MAX4266ESA meets industry standards.
7.What is the process for return or replacement of MAX4266ESA?
All MAX4266ESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4266ESA, 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 MAX4266ESA part is unused and in its original packaging.
Return procedure for MAX4266ESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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