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Analog Devices Inc./Maxim Integrated MAX4418EUD+
- Part No.:
- MAX4418EUD+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4418EUD+.pdf
- Description:
- IC OPAMP VFB 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,384
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Product details
Overview
MAX4418EUD+ from Maxim Integrated is a quad-channel, unity-gain stable, rail-to-rail output operational amplifier optimized for low-power, high-speed video and baseband signal conditioning. It delivers 400MHz -3dB bandwidth, 200V/µs slew rate, and ultra-low 1.6mA per-amplifier supply current at +5V, operating from a single +2.7V to +5.5V supply. Its input common-mode range extends from 100mV below ground to within 1.5V of VCC, enabling full-swing operation in portable video line drivers.
For engineers reviewing the MAX4418EUD+ datasheet, MAX4418EUD+ pinout, MAX4418EUD+ application, or MAX4418EUD+ equivalent, key selection criteria include its quad-channel TSSOP-14 footprint, 0.03%/0.15° differential gain/phase performance, 140Ω output impedance at 1MHz, and guaranteed stability without external compensation in unity-gain configurations.
Technical Context
The MAX4418EUD+ employs voltage-feedback architecture with internal unity-gain compensation, delivering flat small-signal response up to 400MHz under AV = +1V/V conditions. Its rail-to-rail output stage uses demand-driven current biasing to maintain low open-loop output impedance (<0.5Ω at DC), minimizing gain sensitivity to load variations across 1kΩ–150Ω loads.
Input stage design supports ground-sensing operation (VEE − 0.1V common-mode lower limit) and achieves 94dB typical CMRR while maintaining <6µV/°C offset drift. Stability with capacitive loads relies on external isolation resistors (e.g., 22Ω for 15pF), as the device is not optimized for direct reactive load driving.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 400MHz at AV = +1V/V - enables full NTSC/PAL video bandwidth (4.2–5.5MHz) with >70dB gain margin |
| Slew Rate | 200V/µs - supports 2Vp-p signals at 100MHz without slewing distortion |
| Supply Current | 1.6mA per amplifier at +5V - allows four channels to operate within 6.4mA total, critical for battery-powered instruments |
| Differential Gain/Phase | 0.03% / 0.15° at NTSC - meets broadcast-grade video fidelity requirements without post-compensation |
| Input Common-Mode Range | VEE − 0.1V to VCC − 1.5V - permits direct interfacing with 0V-referenced sensors and single-supply ADCs |
| Output Voltage Swing | VCC − 0.105V / VEE + 0.035V at 1kΩ - delivers 4.6Vp-p dynamic range in +5V systems |
| Spurious-Free Dynamic Range | −93dBc at 5MHz, +3V supply - ensures clean signal reconstruction in 10-bit+ ADC buffer applications |
Pinout & Package
MAX4418EUD+ is housed in a 14-pin TSSOP package (3.0mm × 4.4mm, 0.65mm pitch) with exposed pad for thermal enhancement. Pin 1 is marked by a dot; pins are numbered counterclockwise starting from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 8, 11 | No Connection | Not internally bonded - must remain unconnected to avoid parasitic coupling |
| 2, 6, 9, 13 | Inverting Input (INA−, INB−, INC−, IND−) | Differential input nodes requiring matched trace lengths to minimize phase mismatch in quad-channel sync |
| 3, 5, 10, 12 | Noninverting Input (INA+, INB+, INC+, IND+) | High-impedance inputs (16MΩ) sensitive to PCB leakage - guard rings recommended for <1pA bias current integrity |
| 4 | VEE | Negative supply reference - must be tied to ground in single-supply operation; bypass with 0.1µF ceramic |
| 7, 1, 8, 14 | Output (OUTA, OUTB, OUTC, OUTD) | Rail-to-rail outputs capable of sourcing/sinking ±75mA - requires series isolation resistor (22Ω) when driving >15pF loads |
| 14 | VCC | Positive supply input - bypassed locally to reduce PSRR degradation above 100kHz |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers >95% of full supply range at 1kΩ load, maximizing SNR in single-supply data acquisition systems |
| Unity-gain stability | Eliminates need for external compensation components in buffer/gain=1 configurations, reducing BOM count |
| Low distortion at 5MHz | −93dBc SFDR and 0.003% THD enable use as front-end buffers for 10-bit, 50MSPS ADCs without signal corruption |
| Quad-channel matching | 0.1dB gain and 0.1° phase matching up to 10MHz - preserves channel coherence in multi-path video processing |
| Capacitive load drive | Stable with up to 120pF when isolated by 22Ω resistor, supporting direct interface to coaxial cable drivers and LCD column lines |
Applications
| Video Line Drivers | Portable Communications |
|---|---|
|
Use Scenario: Driving 75Ω coaxial cables in handheld video recorders and HDMI source devices. IC Role / Device Role / Timing Role: Quad-channel video buffer amplifying composite NTSC/PAL signals with minimal group delay variation. Use Value: 0.03%/0.15° differential gain/phase error maintains color fidelity across all four video channels simultaneously. |
Use Scenario: Baseband signal conditioning in Bluetooth headsets and cellular transceiver IF stages. IC Role / Device Role / Timing Role: Low-noise, high-bandwidth active filter and level-shifting buffer between RF ICs and ADCs. Use Value: 10nV/√Hz input noise density and 400MHz bandwidth preserve EVM in 2.4GHz ISM band receivers. |
| Battery-Powered Instruments | ADC Input Buffers |
|
Use Scenario: Signal conditioning in handheld oscilloscopes and portable spectrum analyzers. IC Role / Device Role / Timing Role: Quad-channel front-end amplifier providing gain, DC offset control, and drive capability for successive-approximation ADCs. Use Value: 1.6mA per amplifier enables four-channel analog front-end operation within 10mA total system budget. |
Use Scenario: Buffering high-impedance sensor outputs into SAR ADC sample-and-hold inputs. IC Role / Device Role / Timing Role: Fast-settling unity-gain buffer charging 10pF ADC input capacitance within 100ns. Use Value: 200V/µs slew rate and 140Ω output impedance at 1MHz ensure <0.1% settling error before ADC conversion window. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6629MA/NOPB | Higher 1.8GHz GBW but consumes 12mA per amplifier; no rail-to-rail output; SOIC-8 single-channel only | Requires external level-shifting for single-supply video; unsuitable for quad-channel space-constrained layouts | Select when >1GHz bandwidth is mandatory and power budget exceeds 20mA |
| ADA4891-4ARUZ | Lower 225MHz bandwidth and 145V/µs slew rate; 1.2mA supply current; same TSSOP-14 package | Meets SD video specs but fails NTSC/PAL differential phase requirements (0.35° vs. required ≤0.15°) | Select for cost-sensitive industrial sensor interfaces where video fidelity is not required |
Compared with LMH6629MA/NOPB and ADA4891-4ARUZ, MAX4418EUD+ uniquely balances 400MHz bandwidth, quad-channel integration, rail-to-rail output, and sub-0.15° differential phase in a single TSSOP-14 package-making it irreplaceable for portable broadcast-grade video systems.
Availability
MAX4418EUD+ is available at Aetrix Electronics and suitable for battery-powered instruments, portable communications equipment, and video line driver designs requiring stable component supply across extended production lifecycles.
Supply support for MAX4418EUD+ 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 company specializing in high-performance analog and mixed-signal ICs for power, sensing, and signal-chain applications.
The MAX4414–MAX4419 family was designed specifically for low-voltage, high-speed portable video and communications systems requiring rail-to-rail operation, ultra-low power, and broadcast-grade distortion performance.
FAQ
What is the maximum capacitive load the MAX4418EUD+ can drive without oscillation?
The MAX4418EUD+ is stable with up to 120pF capacitive load when a 22Ω isolation resistor is placed in series with the output. Without this resistor, oscillation occurs above ~15pF due to phase margin degradation. The optimal RISO value scales with load capacitance per Figure 2 in the datasheet, ranging from 10Ω at 100pF to 30Ω at 1000pF.
Does the MAX4418EUD+ require external compensation for unity-gain operation?
No, the MAX4418EUD+ is internally compensated for unity-gain stability. It operates reliably in buffer configurations without external compensation components. However, a 24Ω feedback resistor is recommended in unity-gain circuits to dampen parasitic LC resonance formed by PCB trace inductance and feedback capacitance.
How does the MAX4418EUD+ perform in differential gain/phase-critical video applications?
The MAX4418EUD+ achieves 0.03% differential gain error and 0.15° differential phase error at NTSC frequencies with 150Ω load, meeting broadcast video standards. This performance is guaranteed across temperature (−40°C to +85°C) and supply voltage (+2.7V to +5.5V), making MAX4418EUD+ suitable for professional portable video equipment.
Can the MAX4418EUD+ operate from a +3.3V supply while maintaining full AC performance?
Yes, the MAX4418EUD+ maintains 400MHz bandwidth and 200V/µs slew rate at +3.3V supply. Supply current drops to 1.4mA per amplifier, and output swing remains rail-to-rail (VOH = VCC − 0.075V, VOL = VEE + 0.025V at 1kΩ), preserving dynamic range in low-voltage portable systems.
What is the purpose of the No-Connect pins (1, 5, 8, 11) on the MAX4418EUD+?
Pins 1, 5, 8, and 11 on the MAX4418EUD+ are No-Connect terminals with no internal bonding. They must remain unconnected on the PCB to prevent parasitic coupling, ground loops, or unintended current paths that could degrade PSRR or introduce crosstalk between the four amplifier channels.
MAX4418EUD+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 200V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 400 MHz
- Current - Input Bias:
- 1.3 µA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 1.6mA (x4 Channels)
- Current - Output / Channel:
- 75 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
MAX4418EUD+ FAQ
1.How can I place an order for MAX4418EUD+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4418EUD+ 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 MAX4418EUD+ reliable?
The price and inventory of MAX4418EUD+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4418EUD+ is usually 5 days.
3.What payment methods are accepted for MAX4418EUD+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4418EUD+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4418EUD+?
MAX4418EUD+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4418EUD+ 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 MAX4418EUD+?
For technical support, including MAX4418EUD+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4418EUD+ requirements.
6.How does Aetrix verify that MAX4418EUD+ is sourced from the original manufacturer or authorized distributors?
All MAX4418EUD+ 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 MAX4418EUD+ meets industry standards.
7.What is the process for return or replacement of MAX4418EUD+?
All MAX4418EUD+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4418EUD+, 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 MAX4418EUD+ part is unused and in its original packaging.
Return procedure for MAX4418EUD+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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