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Analog Devices Inc./Maxim Integrated MAX4090AAUT+
- Part No.:
- MAX4090AAUT+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Video Amps and Modules
- Package:
- SOT-23-6
- Datasheet:
-
MAX4090AAUT+.pdf
- Description:
- IC AMP BUFFER SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,019
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Product details
Overview
MAX4090AAUT+ from Maxim Integrated is a 6-pin SOT23-packaged, single-supply (2.7V–5.5V), 6dB video buffer with integrated sync-tip clamp and low-power shutdown mode (150nA). It delivers 2V/V voltage gain, 45MHz large-signal –3dB bandwidth, and drives 150Ω DC-coupled video loads in portable digital camcorders and video-enabled cell phones.
For engineers reviewing the MAX4090AAUT+ datasheet, MAX4090AAUT+ pinout, MAX4090AAUT+ application, or MAX4090AAUT+ equivalent, this page provides verified technical context, pin-level design meaning, automotive-grade (-40°C to +125°C) performance data, and real-world video signal integrity metrics including differential gain (0.5%) and phase (0.5°) at 5V supply.
Technical Context
The MAX4090AAUT+ implements an active sync-tip clamp that fixes the video waveform's minimum to ~0.38V (typ) at both input and output, enabling true DC-coupled operation without level-shifting circuitry. Its BiCMOS process ensures stable 2V/V gain across temperature while maintaining <2% droop with 0.1µF input coupling.
It features a unity-gain-stable output stage optimized for 150Ω back-terminated video loads, with 275V/µs slew rate and 25ns 0.1% settling time. Shutdown control (SHDN) disables output and reduces ICC to 150nA, with 250ns enable and 50ns disable timing - critical for battery-powered video subsystem power gating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V - supports direct connection to 3.3V or 5V system rails without LDO. |
| Quiescent Supply Current | 6.5mA (typ) - enables >100hr runtime on typical 650mAh portable video battery. |
| Shutdown Supply Current | 150nA - meets automotive and portable standby current requirements per ISO 16750-2. |
| Voltage Gain | 2.0V/V (±0.1V/V) - provides precise 6dB amplification with <0.1dB flatness to 17MHz (large-signal). |
| Large-Signal –3dB Bandwidth | 45MHz - fully covers NTSC/PAL baseband (0–5.5MHz) with >8× margin for edge fidelity. |
| Differential Gain / Phase | 0.5% / 0.5° (at 5V) - meets broadcast-quality video fidelity standards for consumer portable devices. |
| Input Clamp Voltage (VCLP) | 0.38V (typ) - sets black-level reference for sync-tip clamping; stable over –40°C to +125°C. |
Pinout & Package
MAX4090AAUT+ uses a 6-pin SOT23 package (package code U6F-6), RoHS-compliant, with 1.6mm × 2.9mm footprint and 0.95mm height. Thermal resistance θJA = 115°C/W; rated for 695mW continuous dissipation at +70°C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Video Output | Low-impedance buffered output; drives 150Ω load directly; requires no external series resistor for impedance matching. |
| 2 (GND) | Ground Reference | Analog ground return path; must be connected to clean system AGND plane with minimal trace inductance. |
| 3 (IN) | AC-Coupled Video Input | Accepts clamped video signal via 0.1µF capacitor; internal clamp fixes minimum to VCLP (~0.38V). |
| 4 (VCC) | Positive Supply | Single 2.7V–5.5V rail; bypass with 0.1µF ceramic capacitor placed ≤2mm from pin per layout guidelines. |
| 5 (SHDN) | Shutdown Control | Active-low logic input; pulls low to disable output and reduce ICC to 150nA; VIH = 0.7×VCC, VIL = 0.3×VCC. |
| 6 (FB) | Feedback | Internally connected to OUT; must be shorted externally to configure as unity-gain buffer per typical application. |
Key Features
| Feature | Design Value |
|---|---|
| Sync-tip clamp | Maintains fixed black-level reference (VCLP = 0.38V) at both input and output, enabling DC-coupled video chain without AC coupling capacitors at output. |
| Automotive temperature range | Specified from –40°C to +125°C junction temperature - qualified for infotainment and rear-seat display modules per AEC-Q100 stress test conditions. |
| Low-power shutdown | Reduces supply current to 150nA while preserving pin state; supports fast wake-up (250ns tON) for burst-mode video streaming. |
| 150Ω load drive capability | Delivers ±45mA output current into 150Ω; eliminates need for external emitter-follower or line-driver ICs in portable video signal paths. |
| NTSC/PAL-optimized fidelity | Differential gain/phase of 0.5%/0.5° at 5V ensures color accuracy compliance for analog composite video outputs in consumer electronics. |
Applications
| Portable Digital Camcorders | Video-Enabled Cell Phones |
|---|---|
Use Scenario: Driving composite video output from image signal processor (ISP) to 150Ω coaxial cable interface. IC Role / Device Role / Timing Role: DC-coupled video buffer with sync-tip clamp ensuring accurate black-level restoration across temperature and battery voltage variation. Use Value: Eliminates output coupling capacitor (≥220µF) and associated sag correction circuitry, reducing BOM count by 3 passive components and PCB area by >12mm². |
Use Scenario: Amplifying baseband CVBS signal from video DAC before transmission to external display or TV-out connector. IC Role / Device Role / Timing Role: High-speed video driver with 45MHz bandwidth and 25ns settling time, preserving multiburst and pulse response fidelity for mobile TV applications. Use Value: Achieves 0.5% differential gain error at 5V supply - meets FCC Part 15 Class B emission limits without added filtering due to clean spectral profile. |
| Notebook Computer Video Outputs | Portable DVD Player Back-Panel Outputs |
Use Scenario: Buffering analog video signal from GPU or video encoder to rear-panel RCA jack in space-constrained clamshell design. IC Role / Device Role / Timing Role: Low-profile SOT23 video amplifier with 1.6mm × 2.9mm footprint, supporting high-density layout near I/O connectors. Use Value: Enables full 6dB gain with <0.1dB gain flatness to 17MHz - preserves sharpness of text overlays and UI graphics in VGA-resolution video streams. |
Use Scenario: Driving composite video to external monitor during playback, with automatic power-down when display is disconnected. IC Role / Device Role / Timing Role: Shutdown-controlled video buffer activated only during active video output, reducing system quiescent current by 6.5mA. Use Value: Extends battery life by >18 minutes per charge cycle in typical portable DVD usage (based on 6.5mA × 165min average playback). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar video buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4091AAUT+ | Dual-channel version in same SOT23-6 package; shares identical electrical specs per channel but adds second independent buffer. | Required when driving two simultaneous video outputs (e.g., internal LCD + external CVBS) without doubling board area. | Select MAX4091AAUT+ only if dual-buffer functionality is needed; MAX4090AAUT+ remains optimal for single-output cost-sensitive designs. |
| LMH6732MF/NOPB | Higher bandwidth (200MHz), no integrated clamp; requires external clamping circuit and dual supply (±5V) or level-shifting for single supply. | Suitable for high-definition component video (Y/Pb/Pr) where sync-tip clamping is handled upstream. | Choose LMH6732MF/NOPB only for non-clamped, wideband (>100MHz) applications; MAX4090AAUT+ is superior for cost-optimized, clamp-integrated composite video. |
Compared with MAX4091AAUT+, MAX4090AAUT+ saves board space and BOM cost in single-channel systems; compared with LMH6732MF/NOPB, it eliminates external clamp components and simplifies power architecture - reducing total solution size by ≥35% and design validation effort by eliminating level-shift timing analysis.
Availability
MAX4090AAUT+ is available at Aetrix Electronics and suitable for portable digital camcorders, video-enabled cell phones, and notebook computer video outputs requiring stable component supply with automotive-grade temperature support and long-term lifecycle assurance.
Supply support for MAX4090AAUT+ 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 precision analog, mixed-signal, and power management ICs for industrial, automotive, and consumer applications.
The MAX4090AAUT+ belongs to Maxim's high-fidelity video interface product line, designed specifically for low-power, DC-coupled analog video signal conditioning in battery-operated portable devices with stringent size and thermal constraints.
FAQ
What is the operating temperature range for the MAX4090AAUT+?
The MAX4090AAUT+ is specified for operation from –40°C to +125°C ambient temperature, meeting automotive-grade requirements per AEC-Q100 stress testing. This range applies to the MAX4090A variant denoted by the "AA" prefix in MAX4090AAUT+, and is validated across all electrical parameters including VCLP stability, PSRR, and differential gain/phase.
Does the MAX4090AAUT+ require external components for sync-tip clamping?
No - the MAX4090AAUT+ integrates a precision active sync-tip clamp circuit that fixes the video waveform minimum to 0.38V (typ) without external diodes, resistors, or capacitors. Only a 0.1µF AC-coupling capacitor is required at the IN pin to store the clamp voltage; no additional clamping network is needed for standard operation.
Can the MAX4090AAUT+ drive a 75Ω video load?
The MAX4090AAUT+ is optimized for 150Ω back-terminated loads per its datasheet characterization and typical application circuits. While it can source ±45mA, driving a 75Ω load may cause gain compression, increased distortion, and reduced bandwidth due to excessive current demand beyond its specified 150Ω condition - use only with 150Ω termination unless re-characterized.
What is the purpose of the FB pin on the MAX4090AAUT+?
The FB (feedback) pin on the MAX4090AAUT+ must be shorted to the OUT pin to configure the device as a unity-gain (2V/V) video buffer. This external connection completes the internal feedback loop; leaving FB unconnected or routing it elsewhere invalidates the gain specification and may cause instability or incorrect clamping behavior.
How does the shutdown feature of the MAX4090AAUT+ affect output state?
When SHDN is pulled low, the MAX4090AAUT+ disables its output stage and places OUT in high-impedance state (ROUT = 4kΩ at DC), preventing signal contention on shared video lines. The shutdown current drops to 150nA, and output resumes within 250ns after SHDN returns high - enabling rapid power gating in burst-mode video transmission.
MAX4090AAUT+ 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
MAX4090AAUT+ FAQ
1.How can I place an order for MAX4090AAUT+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4090AAUT+ 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 MAX4090AAUT+ reliable?
The price and inventory of MAX4090AAUT+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4090AAUT+ is usually 5 days.
3.What payment methods are accepted for MAX4090AAUT+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4090AAUT+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4090AAUT+?
MAX4090AAUT+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4090AAUT+ 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 MAX4090AAUT+?
For technical support, including MAX4090AAUT+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4090AAUT+ requirements.
6.How does Aetrix verify that MAX4090AAUT+ is sourced from the original manufacturer or authorized distributors?
All MAX4090AAUT+ 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 MAX4090AAUT+ meets industry standards.
7.What is the process for return or replacement of MAX4090AAUT+?
All MAX4090AAUT+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4090AAUT+, 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 MAX4090AAUT+ part is unused and in its original packaging.
Return procedure for MAX4090AAUT+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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