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Analog Devices Inc./Maxim Integrated MAX4090EUT+
- Part No.:
- MAX4090EUT+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Video Amps and Modules
- Package:
- SOT-23-6
- Datasheet:
-
MAX4090EUT+.pdf
- Description:
- IC AMP BUFFER SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,562
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Product details
Overview
MAX4090EUT+ from Maxim Integrated is a 6-pin SOT23-packaged, single-supply (2.7V–5.5V), 6dB video buffer with sync-tip clamp and 150nA shutdown current, designed to drive DC-coupled 150Ω back-terminated video loads in portable digital camcorders, video-enabled cell phones, and notebook computers.
For engineers reviewing the MAX4090EUT+ datasheet, MAX4090EUT+ pinout, MAX4090EUT+ application, or MAX4090EUT+ equivalent, this page delivers verified electrical specs (e.g., 2V/V gain, 45MHz large-signal bandwidth, 275V/µs slew rate), thermal performance (-40°C to +85°C), shutdown timing (250ns enable), and real-world layout guidance for video signal integrity.
Technical Context
The MAX4090EUT+ integrates an active sync-tip clamp that fixes the video waveform's minimum at ~0.38V (typ), enabling DC-coupled output operation without AC coupling at the output stage. Its internal feedback loop (FB pin tied to OUT) stabilizes gain at 2V/V (6dB) across temperature and supply voltage.
It employs BiCMOS process technology to achieve high-speed performance (45MHz large-signal -3dB BW) while maintaining low quiescent current (6.5mA typ) and ultra-low shutdown current (150nA). The SHDN pin controls a high-impedance output state with 4kΩ disabled output impedance at DC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V - supports direct integration into 3V and 5V portable video rails without level-shifting. |
| Voltage Gain | 2.0 V/V (6dB) - fixed gain ensures consistent signal amplification for NTSC/PAL video levels. |
| Large-Signal Bandwidth | 45 MHz - preserves full video bandwidth up to 4.43MHz color subcarrier with margin for harmonics. |
| Slew Rate | 275 V/µs - enables clean 2V step response with 25ns settling time to 0.1%, critical for sharp video edges. |
| Differential Gain / Phase | 0.5% / 0.5° at 5V - meets broadcast-grade video fidelity requirements for portable displays. |
| Shutdown Current | 150 nA - extends battery life in handheld devices during display-off or sleep states. |
| Input Clamp Voltage | 0.38 V (typ) - establishes precise black-level reference for sync-tip clamping in composite video signals. |
Pinout & Package
MAX4090EUT+ uses a 6-pin SOT23 package (package code U6F-6), RoHS-compliant, with 1.3mm × 2.2mm footprint and 0.95mm height - optimized for space-constrained portable PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Video Output | Drives 150Ω back-terminated video load; DC-coupled, rail-to-rail capable (2.55V high swing @ 3V). |
| 2 (GND) | Ground Reference | Low-impedance return path for video signal and clamp circuit; must be connected to clean analog ground plane. |
| 3 (IN) | Video Input | AC-coupled input requiring 0.1µF capacitor; accepts 0.27V–1.45V range referenced to clamp voltage. |
| 4 (VCC) | Power Supply | Single 2.7V–5.5V supply; requires local 0.1µF ceramic bypass capacitor placed ≤2mm from pin. |
| 5 (SHDN) | Shutdown Control | Active-high logic input; <0.3×VCC disables output and reduces ICC to 150nA; rise/fall times <10ns. |
| 6 (FB) | Feedback Node | Internally connected to OUT; external shorting ensures unity-gain stability and precise 2V/V closed-loop gain. |
Key Features
| Feature | Design Value |
|---|---|
| Sync-tip clamp circuit | Fixes video black level at 0.38V (typ), enabling DC-coupled output driver operation without output coupling capacitors. |
| DC-coupled output architecture | Eliminates need for large output coupling caps (>220µF) in 5V systems via optional sag correction using two 22µF caps. |
| Low-power shutdown mode | Reduces supply current to 150nA while maintaining high-impedance output state - ideal for battery-powered video pause/sleep modes. |
| High-speed video fidelity | 0.5% differential gain and 0.5° differential phase at 5V ensure minimal color distortion in NTSC video paths. |
| Small-footprint packaging | 6-pin SOT23 (U6F-6) occupies <3mm² PCB area - suitable for PDA, smartphone, and ultraportable display interfaces. |
Applications
| Portable Digital Camcorders | Video-Enabled Cell Phones |
|---|---|
Use Scenario: Driving composite video output from image sensor/DAC to external monitor or recording interface in compact camcorders. IC Role / Device Role / Timing Role: DC-coupled video buffer with sync-tip clamp ensuring stable black level and 2Vpp signal integrity over temperature. Use Value: Eliminates output coupling capacitors and maintains <0.5° differential phase error at 4.43MHz, preserving color accuracy in field-portable recording. | Use Scenario: Transmitting baseband video from mobile SoC to front-panel display or HDMI transmitter in smartphones. IC Role / Device Role / Timing Role: Low-power, high-bandwidth buffer enabling fast wake-from-sleep video output activation with 250ns SHDN enable time. Use Value: 150nA shutdown current extends standby battery life; 45MHz bandwidth supports WVGA and QVGA video timing without droop. |
| Notebook Computers | Portable DVD Players |
Use Scenario: Buffering video DAC output to VGA or composite video port on thin-and-light laptops with strict thermal and space constraints. IC Role / Device Role / Timing Role: Single-supply (3V/5V) video driver with integrated clamp, simplifying power domain design and reducing BOM count. Use Value: 6.5mA quiescent current and SOT23 package minimize board area and heat generation - critical for fanless ultrabook designs. | Use Scenario: Driving analog video output from MPEG decoder ASIC to RCA jacks in portable DVD players with battery-only operation. IC Role / Device Role / Timing Role: Back-terminated 150Ω driver with 275V/µs slew rate ensuring crisp video edges and minimal multiburst distortion. Use Value: 25ns 0.1% settling time prevents ghosting in fast-moving video scenes; PSRR >60dB rejects switching noise from adjacent DC-DC converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar video buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4091EUT+ | Inverting configuration (gain = –2V/V); same pinout, clamp, and shutdown specs. | Required where signal polarity inversion is acceptable or needed in video signal chain. | Select MAX4091EUT+ only when inverted output simplifies system-level AC coupling or level shifting. |
| LMH6732MF/NOPB | Higher bandwidth (250MHz), no integrated clamp; 6-pin SOT23, but requires external clamp circuitry. | Suitable for high-definition or component video where sync-tip clamping is handled upstream. | Choose LMH6732MF/NOPB only when >100MHz bandwidth is required and external clamp design is feasible. |
Compared with MAX4090EUT+, MAX4091EUT+ offers identical form-factor and power efficiency but inverts signal polarity, while LMH6732MF/NOPB trades integrated clamping for higher speed - making MAX4090EUT+ optimal for cost-sensitive, space-constrained composite video systems needing self-contained DC-coupling.
Availability
MAX4090EUT+ is available at Aetrix Electronics and suitable for portable digital camcorders, video-enabled cell phones, and notebook computers requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for MAX4090EUT+ 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, mixed-signal, and RF ICs for industrial, communications, and consumer applications.
The MAX4090 product line was engineered specifically for portable video signal conditioning - delivering integrated sync-tip clamping, DC-coupled drive capability, and ultra-low shutdown current in miniature packages.
FAQ
What is the function of the FB pin on the MAX4090EUT+?
The FB (feedback) pin on the MAX4090EUT+ must be externally shorted to the OUT pin to configure the device as a unity-gain stable, 2V/V (6dB) video buffer. This connection establishes the closed-loop gain and ensures accurate sync-tip clamp tracking at the output. Leaving FB unconnected or routing it elsewhere invalidates the specified gain, bandwidth, and video fidelity parameters.
Can the MAX4090EUT+ operate from a 3.3V supply?
Yes, the MAX4090EUT+ operates fully specified from 2.7V to 5.5V, including standard 3.3V rails. At VCC = 3.3V, it delivers 2.55V output high swing into 150Ω, maintains 0.5% differential gain, and draws 6.5mA typical supply current - making it ideal for modern low-voltage portable video systems.
Does the MAX4090EUT+ require input coupling capacitors?
Yes, the MAX4090EUT+ requires an AC-coupling capacitor (typically 0.1µF X7R ceramic) at the IN pin to store the sync-tip clamp voltage. This capacitor enables proper clamp capture and line droop control. Values below 0.05µF degrade clamp accuracy; values above 0.5µF increase capture time without improving performance.
What is the maximum video signal amplitude supported by the MAX4090EUT+?
The MAX4090EUT+ supports a 2Vpp video signal when VCC = 3V (output swing: 0.47V to 2.7V) and up to 4.6Vpp when VCC = 5V (0.47V to 4.6V). The input voltage range is referenced to the clamp voltage (0.27V–1.45V above VCLP), allowing full utilization of the output swing without clipping in standard composite video applications.
How does the shutdown feature affect output impedance in the MAX4090EUT+?
When SHDN is pulled low, the MAX4090EUT+ enters shutdown mode with 150nA supply current and disables its output stage, presenting a high-impedance state: 4kΩ at DC and 2kΩ at 3.58MHz/4.43MHz. This prevents loading of downstream circuits and avoids signal contention in multi-source video systems - confirmed in the Electrical Characteristics table under "Shutdown Output Impedance".
MAX4090EUT+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SOT-23-6
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- Buffer
- Output Type:
- -
- Number of Circuits:
- 1
- -3db Bandwidth:
- 55 MHz
- Slew Rate:
- 275V/µs
- Current - Supply:
- 6.5 mA
- Current - Output / Channel:
- 85 mA
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 5.5V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- SOT-6
MAX4090EUT+ FAQ
1.How can I place an order for MAX4090EUT+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4090EUT+ 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 MAX4090EUT+ reliable?
The price and inventory of MAX4090EUT+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4090EUT+ is usually 5 days.
3.What payment methods are accepted for MAX4090EUT+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4090EUT+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4090EUT+?
MAX4090EUT+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4090EUT+ 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 MAX4090EUT+?
For technical support, including MAX4090EUT+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4090EUT+ requirements.
6.How does Aetrix verify that MAX4090EUT+ is sourced from the original manufacturer or authorized distributors?
All MAX4090EUT+ 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 MAX4090EUT+ meets industry standards.
7.What is the process for return or replacement of MAX4090EUT+?
All MAX4090EUT+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4090EUT+, 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 MAX4090EUT+ part is unused and in its original packaging.
Return procedure for MAX4090EUT+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4090EUT+ Tags
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