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Analog Devices Inc./Maxim Integrated MAX4381EUB+
- Part No.:
- MAX4381EUB+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4381EUB+.pdf
- Description:
- IC OPAMP VFB 2 CIRCUIT 10UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:1,241
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Product details
Overview
MAX4381EUB+ from Maxim Integrated is a dual-channel, rail-to-rail output, high-speed voltage-feedback op amp with independent disable control per channel. It delivers 210MHz -3dB bandwidth, 485V/µs slew rate, and 0.02% differential gain / 0.08° differential phase error-optimized for video line driving, CCD imaging, and analog-to-digital converter interface applications operating from +4.5V to +11V single supply.
For engineers reviewing the MAX4381EUB+ datasheet, MAX4381EUB+ pinout, MAX4381EUB+ application, or MAX4381EUB+ equivalent, this page provides verified electrical parameters, µMAX-10 package layout, disable timing (100ns enable / 1µs disable), and real-world video signal integrity metrics including -65dBc SFDR at 5MHz and 16ns 0.1% settling time.
Technical Context
The MAX4381EUB+ integrates two fully independent amplifiers in a 10-pin µMAX package, each with dedicated IN+, IN-, OUT, and DISABLE pins. Its current-feedback-enhanced voltage-feedback architecture enables simultaneous wide bandwidth and rail-to-rail output swing while maintaining low distortion across video frequencies.
Each amplifier supports single-supply operation down to +4.5V, accepts input common-mode voltages extending 200mV below VEE (ground), and features high-impedance disable mode (35kΩ output resistance) with logic-compatible thresholds (VIH = VCC − 1.25V, VIL = VCC − 3V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 210MHz - supports full HD video baseband (up to ~75MHz) with margin for harmonics and filtering |
| Slew Rate | 485V/µs - enables clean 2Vp-p step response in <16ns without slewing distortion |
| Supply Range | +4.5V to +11V single supply - compatible with 5V and 9V industrial/video rails |
| Differential Gain/Phase | 0.02% / 0.08° - meets NTSC/PAL broadcast-grade video fidelity requirements |
| Disable Output Resistance | 35kΩ - ensures minimal crosstalk in multiplexed video routing when disabled |
| Input Common-Mode Range | VEE − 0.2V to VCC − 2.25V - allows ground-referenced inputs in single-supply systems |
| Spurious-Free Dynamic Range | -65dBc at 5MHz - preserves signal integrity in ADC front-end and IF amplification |
Pinout & Package
The MAX4381EUB+ is housed in a 10-pin µMAX package (3.0mm × 3.0mm, 0.5mm pitch), thermally enhanced for high-speed operation with exposed paddle (EP) tied to VEE for optimal heat dissipation and noise immunity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | INA+ | Noninverting input of Amplifier A - high-impedance node requiring guarded trace routing |
| 2 | INA- | Inverting input of Amplifier A - connects to feedback network; sensitive to parasitic capacitance |
| 3 | OUTA | Amplifier A output - drives 75Ω video loads directly; requires series 24Ω resistor for unity-gain stability |
| 4 | DISABLEA | Active-low shutdown control for Amplifier A - pulls to VEE to disable; 25–60µA input current |
| 5 | VCC | Positive power supply - bypass with 0.1µF ceramic capacitor placed ≤2mm from pin |
| 6 | VEE | Negative power supply (GND in single supply) - low-inductance return path critical for AC performance |
| 7 | INB+ | Noninverting input of Amplifier B - electrically isolated from INA+; enables dual-path signal processing |
| 8 | INB- | Inverting input of Amplifier B - independent feedback path allows different gains per channel |
| 9 | OUTB | Amplifier B output - identical drive capability to OUTA; supports independent video channel routing |
| 10 | DISABLEB | Active-low shutdown control for Amplifier B - enables independent power gating per channel |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Within 50mV of VCC and VEE under 2kΩ load - maximizes dynamic range in 5V systems (4.9Vp-p output) |
| Independent per-channel disable | 35kΩ high-Z state with 2pF output capacitance - enables low-crosstalk video multiplexing without external switches |
| Video-optimized distortion performance | -65dBc SFDR and -63dB THD at 5MHz - meets broadcast video SNR and color fidelity requirements |
| Unity-gain stable with internal compensation | No external compensation required - simplifies layout for 210MHz bandwidth in compact µMAX footprint |
| Ground-sensing input stage | Common-mode range extends 200mV below VEE - supports true DC-coupled video and sensor interfaces |
Applications
| Video Line Driver | Analog-to-Digital Converter Interface |
|---|---|
Use Scenario: Driving 75Ω coaxial cable in set-top box output or surveillance camera feed. IC Role / Device Role / Timing Role: Final-stage buffer amplifier with impedance matching and gain control. Use Value: Delivers 0.02%/0.08° differential gain/phase error and 210MHz bandwidth to preserve composite video fidelity over 100m cable runs. | Use Scenario: Conditioning analog signals before sampling by high-speed ADCs in instrumentation. IC Role / Device Role / Timing Role: Low-noise, fast-settling driver with rail-to-rail output swing. Use Value: 16ns 0.1% settling time and -65dBc SFDR ensure accurate digitization of 5MHz signals without aperture jitter or harmonic corruption. |
| CCD Imaging System | Video Routing and Switching Systems |
Use Scenario: Buffering and gain-setting output from CCD sensor array in digital cameras or medical imaging. IC Role / Device Role / Timing Role: Low-distortion, low-noise signal conditioner with precise DC offset control. Use Value: Input bias current ≤20µA and 10nV/√Hz input voltage noise prevent pixel-level signal degradation in low-light conditions. | Use Scenario: Selecting between multiple video sources using analog switching with minimal crosstalk. IC Role / Device Role / Timing Role: Channelized amplifier with independent disable control per path. Use Value: 35kΩ disabled output impedance and -102dB channel isolation enable clean source switching without ghosting or transient artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel high-speed op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6702MA/NOPB | Single-channel, 1.8GHz GBW, no disable function, SOIC-8 package | Lacks per-channel shutdown and dual-channel integration; higher power (12.5mA/ch) | Choose when ultra-wide bandwidth (>500MHz small-signal) is required and board space allows separate amplifiers per channel. |
| ADA4817-2ACPZ-R7 | Dual-channel, 1GHz GBW, rail-to-rail output, no disable, LFCSP-16 package | Higher bandwidth but no disable mode; 16-pin package increases PCB area vs. µMAX-10 | Prefer when maximum speed is critical and video-grade differential gain/phase specs are secondary to raw bandwidth. |
Compared with LMH6702MA/NOPB and ADA4817-2ACPZ-R7, the MAX4381EUB+ uniquely combines dual-channel integration, per-channel disable, video-optimized distortion performance, and compact µMAX packaging-making it optimal for space-constrained, multi-source video systems requiring low-power state management.
Availability
MAX4381EUB+ is available at Aetrix Electronics and suitable for video line driving, analog-to-digital converter interface, and CCD imaging applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for MAX4381EUB+ 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 precision analog, mixed-signal, and high-speed ICs for industrial, communications, and consumer applications.
The MAX4381EUB+ belongs to the MAX4380–MAX4384 family of ultra-small, low-cost, 210MHz op amps engineered specifically for video signal conditioning, where rail-to-rail output swing, low differential gain/phase error, and per-amplifier disable capability are essential.
FAQ
What is the operating supply voltage range for the MAX4381EUB+?
The MAX4381EUB+ operates from a single +4.5V to +11V supply or dual ±2.25V to ±5.5V supplies. At +5V single supply, it achieves full 210MHz bandwidth and rail-to-rail output swing. The device maintains specified performance across its entire -40°C to +85°C temperature range, with quiescent current of 7.5–10mA total (3.75–5mA per amplifier) when enabled.
How does the disable function work on the MAX4381EUB+?
The MAX4381EUB+ features independent DISABLEA and DISABLEB pins. Driving either pin low (≤VCC − 3V) places that amplifier's output in high-impedance state (35kΩ typical), reducing quiescent current to 0.45–0.6mA per disabled channel. Enable time is 100ns; disable time is 1µs. This allows dynamic power gating in video multiplexers without external switches.
Can the MAX4381EUB+ drive a 75Ω video load directly?
Yes, the MAX4381EUB+ delivers up to 75mA output current and sustains 2Vp-p signals into 75Ω loads with <0.1dB gain flatness to 55MHz. For optimal stability in unity-gain video line driver configurations, Maxim recommends adding a 24Ω resistor in series with the feedback path to dampen parasitic LC resonance.
What is the input common-mode voltage range of the MAX4381EUB+?
At +5V single supply, the MAX4381EUB+ input common-mode range extends from (VEE − 0.2V) to (VCC − 2.25V), i.e., -0.2V to +2.75V. This ground-sensing capability allows direct interfacing with DC-coupled video sources and sensors without level-shifting circuitry, while maintaining >70dB CMRR across the range.
Does the MAX4381EUB+ require external compensation capacitors?
No, the MAX4381EUB+ is internally compensated for unity-gain stability. No external compensation capacitors are needed. However, for best AC performance in unity-gain configurations, a 24Ω resistor in series with the feedback path is recommended to suppress peaking caused by PCB and parasitic capacitance.
MAX4381EUB+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 485V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 210 MHz
- Current - Input Bias:
- 8.5 µA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 7.5mA (x2 Channels)
- Current - Output / Channel:
- 75 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 11 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-uMAX/uSOP
MAX4381EUB+ FAQ
1.How can I place an order for MAX4381EUB+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4381EUB+ 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 MAX4381EUB+ reliable?
The price and inventory of MAX4381EUB+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4381EUB+ is usually 5 days.
3.What payment methods are accepted for MAX4381EUB+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4381EUB+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4381EUB+?
MAX4381EUB+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4381EUB+ 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 MAX4381EUB+?
For technical support, including MAX4381EUB+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4381EUB+ requirements.
6.How does Aetrix verify that MAX4381EUB+ is sourced from the original manufacturer or authorized distributors?
All MAX4381EUB+ 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 MAX4381EUB+ meets industry standards.
7.What is the process for return or replacement of MAX4381EUB+?
All MAX4381EUB+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4381EUB+, 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 MAX4381EUB+ part is unused and in its original packaging.
Return procedure for MAX4381EUB+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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