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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:4,580
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Product details
Overview
MAX4381EUB from Maxim Integrated is a dual-channel, unity-gain-stable, rail-to-rail output voltage-feedback op amp with disable functionality, operating from +4.5V to +11V single supply or ±2.25V to ±5.5V dual supplies. It delivers 210MHz -3dB bandwidth, 485V/µs slew rate, and 0.02% differential gain error, making it suitable for high-fidelity video line driving in surveillance systems and set-top boxes.
For engineers reviewing the MAX4381EUB datasheet, MAX4381EUB pinout, MAX4381EUB application, or MAX4381EUB equivalent, key selection criteria include its dual-amplifier architecture, 10-pin µMAX package, disable-controlled high-impedance output state, and verified performance in 75Ω video routing with <0.1dB gain flatness to 55MHz.
Technical Context
The MAX4381EUB integrates two independent amplifiers sharing a common disable control per channel (DISABLEA and DISABLEB), each featuring ground-sensing inputs extending beyond VEE and rail-to-rail outputs capable of swinging within 50mV of either supply rail under 2kΩ load. Its current-feedback-enhanced voltage-feedback architecture enables simultaneous wide bandwidth and low distortion.
Each amplifier supports unity-gain stability without external compensation and achieves 16ns settling time to 0.1% with 2V step input. The device maintains 70dB CMRR over DC–10MHz and exhibits –65dBc SFDR at 5MHz, confirming suitability for analog-to-digital converter interface and CCD imaging signal conditioning where harmonic integrity is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 210MHz - Enables full HD video signal amplification up to 1080p60 without attenuation |
| Slew Rate | 485V/µs - Supports fast transient response for composite video sync pulses and digital video edges |
| Differential Gain Error | 0.02% - Preserves color fidelity in NTSC/PAL video transmission over 75Ω coaxial lines |
| Supply Voltage Range | +4.5V to +11V single supply - Compatible with standard 5V and 9V industrial power rails |
| Disable Output Resistance | 35kΩ - Provides effective channel isolation in video multiplexer applications |
| Input Common-Mode Range | Extends 200mV below VEE - Allows ground-referenced signal acquisition in single-supply systems |
| Quiescent Current per Amp | 7.5mA - Enables dual-channel operation in battery-powered instruments with low thermal load |
Pinout & Package
The MAX4381EUB is housed in a 10-pin µMAX package (3.0mm × 3.0mm, 0.5mm pitch), optimized for high-density PCB layouts in space-constrained video modules.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | INA− | Inverting input for Amplifier A - Requires matched trace length and impedance control for video differential signaling |
| 2 | INA+ | Noninverting input for Amplifier A - Accepts ground-referenced or AC-coupled video baseband signals |
| 3 | DISABLEA | Active-low shutdown control for Amplifier A - Driven high to enable; pulls output to high-Z state when low |
| 4 | OUTA | Amplifier A output - Designed for direct 75Ω termination; requires microstrip layout for >100MHz fidelity |
| 5 | VCC | Positive supply - Must be bypassed with 0.1µF ceramic capacitor placed ≤2mm from pin |
| 6 | VEE | Negative supply or ground - Shared return path; requires low-inductance ground plane connection |
| 7 | OUTB | Amplifier B output - Independent channel enables dual-video-path routing or stereo analog processing |
| 8 | DISABLEB | Active-low shutdown control for Amplifier B - Enables independent power gating per channel |
| 9 | INB+ | Noninverting input for Amplifier B - Electrically isolated from INA+; supports separate signal sources |
| 10 | INB− | Inverting input for Amplifier B - Completes second fully differential video amplifier stage |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Within 50mV of VCC and VEE under 2kΩ load - Maximizes dynamic range for 0–5V video signals |
| Channel-to-channel isolation | –102dB at DC - Prevents crosstalk between dual video channels in multi-stream encoders |
| 0.1dB gain flatness | 55MHz - Ensures uniform amplitude response across SD/HD video spectrum (4.2MHz–30MHz) |
| Low-distortion video drive | –65dBc SFDR at 5MHz - Meets broadcast-grade signal purity requirements for ADC front-end buffering |
| High-speed disable recovery | 100ns enable time - Supports rapid channel switching in video matrix routers without visible artifacts |
Applications
| Surveillance Video System | Set-Top Box Signal Routing |
|---|---|
Use Scenario: Driving analog CVBS output from video decoder ASIC to multiple BNC connectors in IP camera DVR chassis. IC Role / Device Role / Timing Role: Dual-channel video line driver with independent disable control per channel for source selection. Use Value: 0.02% differential gain error preserves color saturation across 100m coaxial runs; 35kΩ disabled output prevents loading of active channel. | Use Scenario: Buffering component video (Y/Pb/Pr) signals before HDMI encoder in consumer STB design. IC Role / Device Role / Timing Role: High-bandwidth, low-phase-error amplifier for baseband RGB/YUV signal conditioning. Use Value: 55MHz 0.1dB gain flatness ensures accurate chroma/luma timing alignment; rail-to-rail swing accommodates 1Vpp analog video standards. |
| Analog-to-Digital Converter Interface | CCD Imaging System |
Use Scenario: Driving differential inputs of 10-bit/40MSPS ADC in portable test equipment with single +5V supply. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail op amp providing gain-of-two noninverting configuration with precise offset control. Use Value: 16ns 0.1% settling time meets ADC aperture uncertainty budget; –63dB THD avoids quantization noise floor degradation. | Use Scenario: Amplifying low-noise analog output from interline-transfer CCD sensor in medical endoscope camera. IC Role / Device Role / Timing Role: Low-input-bias-current, high-SR amplifier for CCD pixel clock feedthrough suppression and signal restoration. Use Value: 10nV/√Hz input voltage noise minimizes SNR loss in 12-bit dynamic range imaging; 485V/µs slew rate handles fast pixel reset transients. |
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 |
|---|---|---|---|
| LMH6722MA/NOPB | Single +5V supply only; no disable function; 1.8GHz GBW but higher 15mA quiescent current per amp | Lacks channel shutdown capability; unsuitable for power-gated video multiplexers | Select when maximum bandwidth (>500MHz small-signal) is prioritized over power efficiency and disable control |
| ADA4817-2ACPZ-R7 | Faster 1GHz GBW and lower 4.3nV/√Hz noise, but requires dual ±5V supply and has no disable pin | Not compatible with single-supply video systems; lacks output high-Z mode for channel isolation | Prefer for ultra-low-noise, high-precision instrumentation where dual supply and no power gating are acceptable |
Compared with LMH6722MA/NOPB and ADA4817-2ACPZ-R7, the MAX4381EUB uniquely combines dual-channel operation, rail-to-rail output, active disable control, and single-supply compatibility in a 10-pin µMAX package-enabling compact, low-power video signal routing without supply or layout redesign.
Availability
MAX4381EUB is available at Aetrix Electronics and suitable for surveillance video systems, set-top box signal routing, and analog-to-digital converter interface requiring stable component supply across industrial temperature range (–40°C to +85°C).
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 MAX4380–MAX4384 family targets high-fidelity video signal conditioning, delivering rail-to-rail output, disable control, and 210MHz bandwidth in ultra-small packages for space-constrained video infrastructure.
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 guarantees full AC performance including 210MHz bandwidth and 485V/µs slew rate. The device's PSRR remains ≥50dB across this range, ensuring robust operation in noisy power environments typical of video equipment.
Does the MAX4381EUB support rail-to-rail input common-mode voltage?
The MAX4381EUB supports rail-to-rail *output* swing but not rail-to-rail *input*. Its input common-mode voltage range extends 200mV below VEE and to within 2.25V of VCC. For +5V supply, this means –0.2V to +2.75V input range-sufficient for ground-referenced video signals but not for full-rail input acquisition. This design balances speed, distortion, and input stage headroom.
How does the disable function work on the MAX4381EUB?
The MAX4381EUB features independent DISABLEA and DISABLEB pins (pins 3 and 8). When pulled low, each disables its respective amplifier, placing the output in a high-impedance state with 35kΩ resistance and <2pF capacitance. This allows safe channel multiplexing without loading active paths. Enable time is 100ns; disable time is 1µs-fast enough for video frame-rate switching.
What is the recommended PCB layout for MAX4381EUB in video applications?
For optimal MAX4381EUB performance in video applications, use microstrip routing with controlled 75Ω impedance for inputs/outputs, place 0.1µF ceramic bypass capacitors ≤2mm from VCC and VEE pins, avoid 90° trace bends, and implement solid ground planes. Do not use sockets or wire-wrap; surface-mount resistors/capacitors are mandatory. Keep feedback traces short and symmetric to minimize phase error in differential configurations.
Can the MAX4381EUB drive a 75Ω coaxial cable directly?
Yes, the MAX4381EUB is specifically characterized for 75Ω video line driving. With RL = 75Ω to ground, it delivers 0.02% differential gain and 0.08° differential phase error (NTSC), and sustains 485V/µs slew rate into this load. Output voltage swing remains >4.9Vp-p at +5V supply. For best results, terminate the far end of the coax and use series 24Ω resistor in feedback path per the datasheet's unity-gain optimization guidance.
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:
- Bulk
- 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
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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