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Analog Devices Inc./Maxim Integrated MAX4390EUK
- Part No.:
- MAX4390EUK
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4390EUK.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:5,238
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Product details
Overview
The MAX4390EUK from Maxim Integrated is a single-channel, rail-to-rail output operational amplifier with disable functionality, designed for high-speed video and communications 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. Its 5-pin SOT23 package and low-power disable mode (450µA) make it ideal for space-constrained video line drivers and ADC interface circuits.
For engineers reviewing the MAX4390EUK datasheet, MAX4390EUK pinout, MAX4390EUK application, or MAX4390EUK equivalent, key selection criteria include its unity-gain stability, rail-to-rail output swing within 200mV of rails, 21ns settling time to 0.1%, 75Ω video load drive capability, and absence of internal disable logic-distinguishing it from the MAX4389/MAX4393/MAX4394/MAX4396 family members that feature active disable control.
Technical Context
The MAX4390EUK is a voltage-feedback op amp employing current-feedback techniques to achieve high slew rate and wide bandwidth while maintaining unity-gain stability. Its input stage supports common-mode voltage down to VEE (ground in single-supply operation) and up to VCC − 2.25V, enabling direct interfacing with video DACs and CCD outputs.
Unlike the MAX4389 and MAX4393–MAX4396, the MAX4390EUK lacks a dedicated DISABLE pin and corresponding high-impedance shutdown mode-its pinout omits disable functionality entirely, resulting in a 5-pin configuration versus the 6-pin SC70/SOT23 variants with disable. This simplifies biasing but removes dynamic power gating capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 85MHz (measured under dual ±5V supply, 100mVP-P small-signal condition) |
| Slew Rate | 500V/µs (enables clean 2VP-P video signal reproduction without distortion) |
| Differential Gain Error | 0.015% (meets NTSC/PAL broadcast-grade video fidelity requirements) |
| Output Drive | ±50mA into 75Ω (directly drives standard video transmission lines without external buffers) |
| Supply Range | Single 4.5V–11V or dual ±2.25V–±5.5V (supports industrial and battery-powered video systems) |
| Input Common-Mode Range | VEE to VCC − 2.25V (accepts ground-referenced video inputs in single-supply configurations) |
| Settling Time | 21ns to 0.1% (ensures accurate pixel-level timing in high-resolution digital video capture) |
Pinout & Package
The MAX4390EUK is housed in a RoHS-compliant 5-pin SOT23 package (package code U5-1), optimized for compact PCB layouts and automated assembly. Pin 1 is OUT, Pin 2 is VEE (GND in single-supply), Pin 3 is IN+, Pin 4 is IN−, and Pin 5 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Amplifier Output | Rail-to-rail output capable of sourcing/sinking ±50mA into 75Ω loads; connects directly to coaxial video output or ADC input |
| 2 | Negative Power Supply | Ground reference in single-supply operation; requires local 0.1µF bypass capacitor |
| 3 | Noninverting Input | High-impedance node accepting video baseband or sensor signals; supports DC-coupled inputs down to VEE |
| 4 | Inverting Input | Feedback node for closed-loop gain configuration; used with precision resistors for stable video gain setting |
| 5 | Positive Power Supply | Primary power input; requires local 0.1µF bypass capacitor; supports 4.5V–11V operation |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Within 200mV of both supply rails at full ±50mA load-preserves dynamic range in low-voltage video systems |
| Unity-gain stable architecture | No external compensation required; enables robust 1× gain video buffering without oscillation risk |
| Low differential phase error | 0.015° (NTSC, RL = 150Ω)-maintains color fidelity and timing integrity in analog video chains |
| High output drive into 75Ω | Delivers 2VP-P signals into standard video impedance without external emitter followers or transformers |
| Low input bias current | 2.5–15µA (ensures minimal DC offset drift when interfacing with high-impedance CCD or DAC outputs) |
Applications
| Surveillance Video Systems | Analog-to-Digital Converter Interface |
|---|---|
Use Scenario: Driving composite video signals from analog camera modules over 75Ω coaxial cable to DVR inputs. IC Role / Device Role / Timing Role: High-fidelity video line driver amplifying baseband CVBS signals with minimal gain/phase distortion. Use Value: 0.015% differential gain and 0.015° phase error preserve color accuracy across temperature; 85MHz bandwidth supports HD-ready resolution. | Use Scenario: Buffering output of 10-bit/12-bit video DACs before digitization in embedded vision processors. IC Role / Device Role / Timing Role: Unity-gain buffer isolating DAC output from ADC input capacitance and trace impedance variations. Use Value: 21ns 0.1% settling time ensures accurate sampling of fast-rising video pixel edges; rail-to-rail swing maximizes SNR. |
| Set-Top Boxes | Video-on-Demand Terminals |
Use Scenario: Conditioning RGB or YPbPr component video outputs for HDMI or legacy SCART connectors. IC Role / Device Role / Timing Role: Triple-amplifier channel driver (using three MAX4390EUK units) for simultaneous red/green/blue signal paths. Use Value: Matched AC performance across channels eliminates color skew; ±50mA drive sustains signal integrity over long PCB traces. | Use Scenario: Amplifying streaming video signals in IPTV set-top boxes prior to RF modulation or direct display output. IC Role / Device Role / Timing Role: Final-stage video driver delivering conditioned baseband signal to RF modulator input or LVDS transmitter. Use Value: 500V/µs slew rate prevents edge rounding on sharp video transitions; low 13nV/√Hz input noise preserves signal clarity. |
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 |
|---|---|---|---|
| MAX4389EUT+T | Includes DISABLE pin (Pin 5), 6-pin SOT23, same bandwidth/slew rate, but adds 450µA shutdown mode | Required where dynamic power gating or multiplexer-style signal routing is needed | Select MAX4389EUT+T only if system-level power sequencing mandates amplifier disable control |
| THS3201DR | Higher 1.8GHz bandwidth, 4500V/µs slew rate, no rail-to-rail output, SO-8 package, higher quiescent current (12.5mA) | Better suited for RF IF amplification or ultra-high-speed pulse applications-not optimized for broadcast video fidelity | Choose THS3201DR only for non-video, high-frequency signal chain stages requiring extreme speed over video linearity |
Compared with the MAX4389EUT+T, the MAX4390EUK saves one PCB pad and eliminates disable logic complexity, while matching core video performance; versus the THS3201DR, it trades raw speed for superior differential gain/phase accuracy and lower power-making it purpose-built for analog video rather than general RF amplification.
Availability
The MAX4390EUK is available at Aetrix Electronics and suitable for surveillance video systems, analog-to-digital converter interfaces, and set-top box designs requiring stable component supply, consistent parametric performance, and long-term industrial availability.
Supply support for MAX4390EUK 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 power management ICs for industrial, communications, and consumer applications.
The MAX4390EUK belongs to Maxim's ultra-small, low-cost, 85MHz op amp family targeting video signal conditioning-designed specifically to replace legacy video amplifiers with improved differential gain/phase accuracy, rail-to-rail output, and compact packaging.
FAQ
What is the supply voltage range supported by the MAX4390EUK?
The MAX4390EUK operates from a single 4.5V to 11V supply or dual ±2.25V to ±5.5V supplies. This range accommodates both battery-powered portable video equipment and fixed-line industrial video systems. The device maintains specified AC performance-including 85MHz bandwidth and 500V/µs slew rate-across the full voltage range, with PSRR guaranteed at 48dB minimum.
Does the MAX4390EUK have a disable function like other devices in the MAX4389/MAX439x family?
No, the MAX4390EUK does not include a disable function. Unlike the MAX4389, MAX4393, MAX4394, and MAX4396, which feature a dedicated DISABLE pin and high-impedance shutdown mode drawing only 450µA, the MAX4390EUK has a 5-pin SOT23 configuration with no disable terminal. Its pinout consists solely of OUT, VEE, IN+, IN−, and VCC-making it a simplified, always-active video amplifier.
What is the typical differential gain and phase error of the MAX4390EUK, and why does it matter for video applications?
The MAX4390EUK exhibits 0.015% differential gain error and 0.015° differential phase error under NTSC conditions with a 150Ω load. These values directly impact color fidelity in analog video: low differential gain error prevents saturation shifts between bright/dark areas, while low phase error avoids hue distortion across luminance levels. This performance meets broadcast-grade requirements and exceeds legacy video op amps, ensuring accurate color reproduction in surveillance and STB applications.
Can the MAX4390EUK drive a 75Ω video load with full 2VP-P output swing?
Yes, the MAX4390EUK is specified to deliver ±50mA output current into 75Ω loads, supporting 2VP-P signals with less than 0.1dB gain flatness up to 24MHz. Its rail-to-rail output stage swings within 200mV of each supply rail under full load, enabling full-scale video signal transmission without clipping-even at 5V single-supply operation. This eliminates need for external level-shifting or boost circuitry in standard video line driver designs.
What is the settling time and bandwidth specification of the MAX4390EUK, and how do they affect video signal integrity?
The MAX4390EUK achieves 21ns settling time to 0.1% and an 85MHz small-signal -3dB bandwidth (under dual ±5V supply). These specs ensure faithful reproduction of fast video transients-such as pixel clock edges and sync pulses-without overshoot, ringing, or amplitude droop. The combination enables accurate digitization of HD-ready video formats and preserves rise/fall symmetry critical for chroma/luma separation in composite video systems.
MAX4390EUK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 500V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 72 MHz
- Current - Input Bias:
- 2.5 µA
- Voltage - Input Offset:
- 5 mV
- Current - Supply:
- 3.2mA
- Current - Output / Channel:
- 55 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-23-5
MAX4390EUK FAQ
1.How can I place an order for MAX4390EUK through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4390EUK 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 MAX4390EUK reliable?
The price and inventory of MAX4390EUK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4390EUK is usually 5 days.
3.What payment methods are accepted for MAX4390EUK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4390EUK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4390EUK?
MAX4390EUK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4390EUK 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 MAX4390EUK?
For technical support, including MAX4390EUK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4390EUK requirements.
6.How does Aetrix verify that MAX4390EUK is sourced from the original manufacturer or authorized distributors?
All MAX4390EUK 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 MAX4390EUK meets industry standards.
7.What is the process for return or replacement of MAX4390EUK?
All MAX4390EUK units undergo pre-shipment inspection (PSI). If there is an issue with MAX4390EUK, 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 MAX4390EUK part is unused and in its original packaging.
Return procedure for MAX4390EUK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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