My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX4265EUA+
- Part No.:
- MAX4265EUA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4265EUA+.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:1,685
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX4265EUA+ from Maxim Integrated is a single-channel, unity-gain stable, ultra-low-distortion voltage-feedback operational amplifier optimized for high-frequency signal conditioning. It delivers 400MHz small-signal bandwidth, -90dBc SFDR at 5MHz (100Ω load), 900V/µs slew rate, and 8nV/√Hz input voltage noise density while operating from a +4.5V to +8.0V single supply. It is engineered for high-speed ADC driver and IF amplifier applications in RF telecom infrastructure.
For engineers reviewing the MAX4265EUA+ datasheet, MAX4265EUA+ pinout, MAX4265EUA+ application, or MAX4265EUA+ equivalent, key selection criteria include its 400MHz unity-gain bandwidth, active-low disable functionality with 100ns enable time, ±45mA output drive into 100Ω, and guaranteed operation across -40°C to +85°C with 8-pin µMAX® packaging.
Technical Context
The MAX4265EUA+ employs proprietary bipolar process technology to achieve ultra-low distortion in single-supply configurations-typically a feature of dual-supply op amps. Its internal unity-gain compensation ensures stability without external phase compensation networks, enabling robust performance in noninverting gain-of-1 configurations driving reactive or resistive loads up to 100Ω.
It features an active-low DISABLE pin that places the output in high-impedance state while reducing quiescent current to 1.6mA per amplifier. The input common-mode range extends from (VEE + 1.6V) to (VCC – 1.6V), and the output swings to within 1.1V of each rail under load-critical for preserving dynamic range in DC-coupled high-speed interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 400MHz at AV = +1V/V - enables baseband-to-IF amplification up to UHF without gain peaking or instability |
| SFDR @ 5MHz | -90dBc into 100Ω - preserves signal integrity in wideband ADC front-ends with >16-bit ENOB capability |
| Slew Rate | 900V/µs - supports clean 1VP-P step response with <15ns 0.1% settling time |
| Input Voltage Noise | 8nV/√Hz at 1kHz - minimizes added noise floor in low-level RF/IF signal chains |
| Output Drive | ±45mA into 100Ω - sustains full-scale swing into matched transmission-line loads |
| Disable Current | 1.6mA per amplifier - reduces system power by >90% during idle or multiplexed channel gating |
| Supply Range | +4.5V to +8.0V single supply - compatible with standard 5V and 3.3V logic rails via LDO or charge pump |
Pinout & Package
The MAX4265EUA+ is housed in an 8-pin µMAX® package (2.1mm × 2.1mm, 0.5mm pitch), optimized for space-constrained RF and high-density PCB layouts. Thermal resistance θJA is 244°C/W, supporting continuous operation at ambient temperatures up to +85°C with minimal heatsinking.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | DISABLE | Active-low digital control input; pulls output to high-Z when logic low (≤ VEE + 0.3V) |
| 2 | IN– | Inverting input terminal; accepts differential or single-ended feedback networks |
| 3 | IN+ | Noninverting input terminal; supports DC-coupled sensor or IF signal injection |
| 4 | VEE | Negative supply pin; tied to ground in single-supply operation |
| 5 | OUT | Amplifier output; drives 100Ω loads directly with <1.1V rail headroom |
| 6 | VCC | Positive supply pin; accepts +4.5V to +8.0V with mandatory 1nF + 0.1µF bypassing |
| 7 | N.C. | No internal connection; must remain unconnected or grounded per layout best practice |
| 8 | N.C. | No internal connection; electrically isolated; avoid routing signals nearby |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stable architecture | Eliminates need for external compensation components in gain-of-1 buffer and line-driver configurations |
| Ultra-low distortion at high frequency | -90dBc SFDR at 5MHz and -47dBc at 100MHz enables clean spectral purity in LTE/5G IF stages |
| High-speed disable mode | 100ns enable time and 750µs disable time support precise timing control in TDD or burst-mode systems |
| Wide supply voltage range | +4.5V to +8.0V operation allows direct interface with 5V analog subsystems and 3.3V logic controllers |
| Robust capacitive load drive | Stable with ≤15pF load; isolation resistor option supports up to 100pF for ADC sampling capacitor charging |
Applications
| Base-Station IF Amplifier | High-Speed ADC Driver |
|---|---|
Use Scenario: Amplifying 70MHz–250MHz intermediate frequency signals in macrocell and small-cell LTE/5G radio units before digitization. IC Role / Device Role / Timing Role: High-linearity, DC-coupled gain block placed between mixer and ADC input, maintaining phase coherence and minimizing intermodulation. Use Value: -90dBc SFDR at 5MHz and 400MHz bandwidth preserve adjacent-channel power ratio (ACPR) and EVM compliance in multi-carrier OFDM waveforms. |
Use Scenario: Driving the switched-capacitor input of 12–16-bit, 100MSPS+ pipeline or SAR ADCs in software-defined radio receivers. IC Role / Device Role / Timing Role: Low-noise, fast-settling buffer that charges ADC input capacitance within 15ns (0.1%) without introducing harmonic distortion. Use Value: 900V/µs slew rate and ±45mA output ensure full-scale 1VP-P steps settle cleanly, preventing missing codes and integral nonlinearity errors. |
| RF Telecom Line Driver | High-Frequency Signal Processing |
Use Scenario: Transmitting conditioned IF or baseband signals over 50Ω/75Ω coaxial traces to modulators or upconverters in point-to-point microwave links. IC Role / Device Role / Timing Role: Single-ended line driver with rail-to-rail output swing capability and controlled impedance matching. Use Value: Output swing to within 1.1V of rails and 100Ω load compatibility eliminate need for external level-shifting or termination resistors. |
Use Scenario: Real-time filtering, gain adjustment, and signal summation in wideband test equipment (e.g., vector signal analyzers, arbitrary waveform generators). IC Role / Device Role / Timing Role: Precision gain stage in closed-loop feedback paths requiring flat group delay and minimal phase distortion up to 100MHz. Use Value: 100MHz 0.1dB gain flatness and <0.03° differential phase error maintain waveform fidelity in complex modulation schemes (QAM, OFDMA). |
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 | Higher 1GHz bandwidth but higher 13nV/√Hz noise and no disable function; requires dual ±5V supplies for optimal distortion | Better suited for DC-coupled photodiode preamps than RF IF buffering where low SFDR dominates | Select AD8009ARZ only if >500MHz bandwidth is required and disable functionality is unnecessary |
| LMH6629MA/NOPB | Lower 2.5nV/√Hz noise but 200MHz bandwidth and no integrated disable; operates down to +2.7V supply | Preferred for battery-powered portable instrumentation, not fixed infrastructure with strict SFDR requirements | Choose LMH6629MA/NOPB when ultra-low noise dominates over wideband distortion performance |
Compared with AD8009ARZ and LMH6629MA/NOPB, the MAX4265EUA+ uniquely balances 400MHz bandwidth, -90dBc SFDR at 5MHz, active disable, and single-supply operation-making it the optimal choice for cost-sensitive, space-constrained RF IF amplifiers where spectral purity and power gating are co-primary requirements.
Availability
MAX4265EUA+ is available at Aetrix Electronics and suitable for RF telecom infrastructure, high-speed data acquisition systems, and precision test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4265EUA+ 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) is a semiconductor design house specializing in high-performance analog, mixed-signal, and power-management ICs for communications, industrial, and automotive markets.
The MAX4265–MAX4270 family was designed specifically for ultra-low-distortion, wideband signal conditioning in RF and high-speed data converter interfaces-targeting applications where SFDR, slew rate, and disable-controlled power efficiency are simultaneously critical.
FAQ
What is the maximum load capacitance the MAX4265EUA+ can drive without external isolation?
The MAX4265EUA+ maintains stability with capacitive loads up to 15pF and less than 2dB peaking in small-signal gain response. For larger loads-such as ADC sampling capacitors exceeding 15pF-an external series isolation resistor (e.g., 6Ω–18Ω depending on load value) is required between the MAX4265EUA+ output and the capacitive node to preserve phase margin and prevent oscillation.
Does the MAX4265EUA+ require dual supplies to achieve its specified SFDR performance?
No. The MAX4265EUA+ achieves its -90dBc SFDR at 5MHz and -47dBc at 100MHz using a single +5V supply (within the +4.5V to +8.0V range). Its proprietary bipolar process enables ultra-low distortion in single-supply operation-a key differentiator versus most high-speed op amps that demand dual ±5V rails for comparable SFDR.
How does the disable function affect output state and system power consumption?
When DISABLE is pulled low, the MAX4265EUA+ output enters a true high-impedance state (not clamped or weakly driven), and quiescent supply current drops to 1.6mA per amplifier-reducing total power by >90% versus normal operation (28mA typical). This enables precise channel gating in multiplexed signal paths without loading downstream circuitry.
Can the MAX4265EUA+ drive a 50Ω transmission line directly?
Yes-the MAX4265EUA+ delivers ±45mA into 100Ω and can drive 50Ω loads with appropriate gain-setting network design. For 50Ω back-terminated lines, configure as a gain-of-2 noninverting amplifier with 50Ω series output resistor to match characteristic impedance and minimize reflections, preserving signal integrity up to 200MHz.
What is the input common-mode voltage range for the MAX4265EUA+ at +5V supply?
At VCC = +5V and VEE = 0V, the MAX4265EUA+ supports an input common-mode voltage range from +1.6V to +3.4V (i.e., VEE + 1.6V to VCC – 1.6V). This allows DC-coupled interfacing with mid-supply referenced sources such as mixers or DAC outputs without level-shifting circuitry.
MAX4265EUA+ 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:
- Last Time Buy
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 900V/µs
- Gain Bandwidth Product:
- 400 MHz
- -3db Bandwidth:
- 400 MHz
- Current - Input Bias:
- 3.5 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 28mA
- Current - Output / Channel:
- -
- 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
MAX4265EUA+ FAQ
1.How can I place an order for MAX4265EUA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4265EUA+ 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 MAX4265EUA+ reliable?
The price and inventory of MAX4265EUA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4265EUA+ is usually 5 days.
3.What payment methods are accepted for MAX4265EUA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4265EUA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4265EUA+?
MAX4265EUA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4265EUA+ 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 MAX4265EUA+?
For technical support, including MAX4265EUA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4265EUA+ requirements.
6.How does Aetrix verify that MAX4265EUA+ is sourced from the original manufacturer or authorized distributors?
All MAX4265EUA+ 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 MAX4265EUA+ meets industry standards.
7.What is the process for return or replacement of MAX4265EUA+?
All MAX4265EUA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4265EUA+, 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 MAX4265EUA+ part is unused and in its original packaging.
Return procedure for MAX4265EUA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4265EUA+ Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
