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Analog Devices Inc./Maxim Integrated MAX4389EUT
- Part No.:
- MAX4389EUT
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
MAX4389EUT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:9,512
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Product details
Overview
MAX4389EUT from Maxim Integrated is a single-channel, rail-to-rail output voltage-feedback operational amplifier with disable functionality, designed for high-fidelity video signal conditioning. It delivers 85MHz -3dB bandwidth, 500V/µs slew rate, and 0.015% differential gain error, operating from single 4.5V–11V or dual ±2.25V–±5.5V supplies. It is used in analog video line drivers where low distortion and fast settling are critical.
For engineers reviewing the MAX4389EUT datasheet, MAX4389EUT pinout, MAX4389EUT application, or MAX4389EUT equivalent, key selection criteria include its 6-pin SOT23 package, 21ns settling time to 0.1%, 75Ω video load drive capability, disable-mode current of 450µA, and NTSC-qualified differential phase/gain performance.
Technical Context
The MAX4389EUT employs BiCMOS process technology and combines voltage-feedback architecture with current-feedback techniques to achieve high-speed performance while maintaining unity-gain stability. Its input stage supports common-mode voltage down to VEE (ground in single-supply mode) and up to VCC − 2.25V, enabling direct interfacing with ADCs and video DACs.
It features an active-disable function that places the output in high-impedance state (≥40kΩ) with only 450µA quiescent current, making it suitable for multiplexed video routing and power-sensitive embedded systems. Output drive capability reaches ±50mA into 75Ω loads, supporting standard-definition video line driving without external buffers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 85MHz (measured under dual ±5V supply, ensures full NTSC/PAL baseband signal fidelity) |
| Slew Rate | 500V/µs (enables clean 2VP-P large-signal response up to 90MHz) |
| Settling Time | 21ns to 0.1% (critical for fast-switching video multiplexers and digitizer front-ends) |
| Differential Gain/Phase | 0.015%/0.015° (NTSC-compliant; eliminates color shift in broadcast-quality video paths) |
| Disable Current | 450µA (reduces system standby power in multi-channel video routers) |
| Output Drive | ±50mA into 75Ω (directly drives coaxial video lines without series termination or buffer stages) |
| Supply Range | Single 4.5V–11V or dual ±2.25V–±5.5V (supports both portable and industrial 5V/±5V rails) |
Pinout & Package
The MAX4389EUT is housed in a 6-pin SOT23 package (package code U6-1), with 0.95mm pitch, 2.9mm × 1.6mm footprint, and exposed pad not connected internally. Thermal resistance θJA = 115°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Amplifier output | Rail-to-rail voltage source capable of sourcing/sinking ±50mA into 75Ω; high-Z when DISABLE = low |
| 2 - VEE | Negative supply | Ground reference in single-supply operation; requires 0.1µF bypass capacitor to GND |
| 3 - IN+ | Noninverting input | High-impedance node (3MΩ typical); accepts common-mode voltages down to VEE |
| 4 - IN− | Inverting input | High-impedance node; used with feedback network for gain configuration |
| 5 - DISABLE | Active-low shutdown control | Logic threshold: VIL ≤ VCC − 3V, VIH ≥ VCC − 1.25V; 40ns turn-on, 80ns turn-off |
| 6 - VCC | Positive supply | Primary power rail; requires 0.1µF bypass capacitor to GND; supports up to +11V |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Within 200mV of VCC/VEE at 50mA load - enables full dynamic range utilization in 0–5V video systems |
| Video-optimized distortion | −59dBc SFDR at 5MHz - preserves chroma/luma integrity in SD video transmission |
| Unity-gain stable | No external compensation required - simplifies PCB layout for gain = 1 video buffer applications |
| Low input capacitance | 1pF typical - minimizes high-frequency peaking when driving reactive video loads |
| Fast disable timing | 40ns enable / 80ns disable - supports sub-microsecond channel switching in video MUX designs |
Applications
| Surveillance Video Systems | Analog-to-Digital Converter Interface |
|---|---|
Use Scenario: Driving composite video signals from CCTV cameras over 75Ω coaxial cable to DVR inputs. IC Role / Device Role / Timing Role: High-speed video line driver with DC-coupled rail-to-rail output and disable-controlled channel isolation. Use Value: Eliminates external buffer stages while maintaining <0.015% differential gain error for accurate color reproduction across multiple camera channels. | Use Scenario: Buffering analog outputs of video DACs before sampling by high-speed ADCs in digital video recorders. IC Role / Device Role / Timing Role: Unity-gain follower with 21ns settling time and low noise (13nV/√Hz) to preserve SNR during digitization. Use Value: Prevents DAC output loading and maintains >70dB SFDR at 5MHz, ensuring clean 8–10-bit video digitization. |
| Set-Top Boxes | Video Line Driver |
Use Scenario: Conditioning CVBS output signals for RF modulator or direct composite video output in consumer STBs. IC Role / Device Role / Timing Role: Final-stage video amplifier with disable capability for power gating unused output paths. Use Value: Reduces standby current by >5mA per channel versus always-on op amps, meeting Energy Star requirements. | Use Scenario: Driving 75Ω video distribution networks in broadcast equipment and professional monitors. IC Role / Device Role / Timing Role: High-current, low-distortion line driver with ±50mA output and 0.6Ω output impedance at 5MHz. Use Value: Delivers flat 0.1dB gain up to 24MHz and supports 2VP-P signals without clipping or overshoot. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed video op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6702MF/NOPB | Higher 1.7GHz GBW but no disable function; 12mA quiescent current vs. 5.5mA; SO-8 package | Lacks integrated shutdown - requires external logic and higher board area | Choose LMH6702MF/NOPB only when >100MHz small-signal bandwidth is mandatory and disable is unnecessary |
| ADA4817-1ARMZ | Faster 1GHz GBW and lower 4.3nV/√Hz noise, but no rail-to-rail output; 10-pin MSOP package | Cannot swing to VEE in single-supply video systems - limits dynamic range in 0–5V CVBS paths | Prefer ADA4817-1ARMZ for precision ADC buffering where noise dominates, not video line driving |
Compared with LMH6702MF/NOPB and ADA4817-1ARMZ, the MAX4389EUT uniquely balances video-grade distortion performance, integrated disable, rail-to-rail output, and compact SOT23 footprint - making it optimal for space-constrained, power-aware SD video signal chains.
Availability
MAX4389EUT is available at Aetrix Electronics and suitable for surveillance video systems, set-top boxes, and analog-to-digital converter interface circuits requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX4389EUT 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 industrial, communications, and consumer applications.
The MAX4389EUT belongs to Maxim's ultra-small, low-cost video op amp product line, engineered specifically for NTSC/PAL-compliant video signal conditioning with minimal external components and low power consumption.
FAQ
What is the operating temperature range for the MAX4389EUT?
The MAX4389EUT is specified for operation from −40°C to +85°C ambient temperature. This industrial-grade range ensures reliable performance in surveillance enclosures, set-top box chassis, and automotive infotainment head units. All electrical parameters in the MAX4389EUT datasheet - including bandwidth, slew rate, and differential gain - are guaranteed across this full range, with typical values measured at +25°C.
Does the MAX4389EUT require external compensation for unity-gain stability?
No, the MAX4389EUT is internally compensated and unity-gain stable. When configured as a unity-gain buffer, Maxim recommends adding a 24Ω resistor in series with the feedback path to optimize AC performance by damping parasitic LC resonance. This design choice avoids oscillation while preserving 85MHz bandwidth and 0.1dB gain flatness up to 27MHz - confirmed in the MAX4389EUT's typical operating characteristics.
Can the MAX4389EUT drive a 75Ω video load directly?
Yes, the MAX4389EUT is explicitly characterized to drive 75Ω video loads, delivering ±50mA output current with <0.015% differential gain error and 0.015° differential phase error under NTSC conditions. Its rail-to-rail output swings within 200mV of each supply rail at full load, and its 0.6Ω output impedance at 5MHz ensures minimal signal degradation - eliminating the need for external current-boosting stages in standard-definition video line driver applications.
What is the disable functionality of the MAX4389EUT and how does it behave electrically?
The MAX4389EUT's DISABLE pin (Pin 5) places the amplifier in low-power, high-output-impedance state when pulled low. In disable mode, quiescent current drops to 450µA and output resistance rises to ≥40kΩ (typical 95kΩ), effectively isolating the output node. The disable timing is 40ns turn-on and 80ns turn-off, enabling fast channel switching in video multiplexers. The logic thresholds are VIL ≤ VCC − 3V and VIH ≥ VCC − 1.25V - compatible with standard 3.3V or 5V logic interfaces.
Is the MAX4389EUT pin-compatible with other members of the MAX4389/MAX4390 family?
No, the MAX4389EUT is not pin-compatible with MAX4390 or multi-channel variants. While MAX4389EUT and MAX4390 share the same 6-pin SOT23 footprint, MAX4390 lacks the DISABLE pin (Pin 5 is N.C.), and its internal pinout differs: MAX4390 uses Pin 5 for VCC and has no DISABLE function. Substituting MAX4390 for MAX4389EUT would leave the disable control unconnected and compromise system power management - always verify pin mapping using the official MAX4389EUT pin configuration diagram before layout reuse.
MAX4389EUT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 500V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2.5 µA
- Voltage - Input Offset:
- 7 mV
- Current - Supply:
- 6mA
- Current - Output / Channel:
- 95 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:
- SOT-23-6
MAX4389EUT FAQ
1.How can I place an order for MAX4389EUT through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4389EUT 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 MAX4389EUT reliable?
The price and inventory of MAX4389EUT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4389EUT is usually 5 days.
3.What payment methods are accepted for MAX4389EUT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4389EUT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4389EUT?
MAX4389EUT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4389EUT 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 MAX4389EUT?
For technical support, including MAX4389EUT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4389EUT requirements.
6.How does Aetrix verify that MAX4389EUT is sourced from the original manufacturer or authorized distributors?
All MAX4389EUT 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 MAX4389EUT meets industry standards.
7.What is the process for return or replacement of MAX4389EUT?
All MAX4389EUT units undergo pre-shipment inspection (PSI). If there is an issue with MAX4389EUT, 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 MAX4389EUT part is unused and in its original packaging.
Return procedure for MAX4389EUT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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