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Analog Devices Inc./Maxim Integrated MAX4385EEUK
- Part No.:
- MAX4385EEUK
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4385EEUK.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,545
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Product details
Overview
MAX4385EEUK from Maxim Integrated is a single, rail-to-rail output, voltage-feedback operational amplifier optimized for high-speed video line driving. It delivers 230MHz −3dB bandwidth, 450V/µs slew rate, and ±15kV HBM ESD protection on all pins, operating from a single 5V supply with input common-mode range extending beyond VEE. It is used in surveillance video systems and set-top box video outputs where robustness against external ESD events and wide dynamic range are critical.
For engineers reviewing the MAX4385EEUK datasheet, MAX4385EEUK pinout, MAX4385EEUK application, or MAX4385EEUK equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternative options, and supply-chain support details specific to the SOT23-5 packaged device.
Technical Context
The MAX4385EEUK employs current-feedback techniques within a voltage-feedback architecture to achieve both unity-gain stability and high slew rate (450V/µs). Its input stage supports common-mode voltages down to VEE − 200mV and up to VCC − 2.25V, enabling ground-sensing capability in single-supply systems.
Output stage design ensures rail-to-rail swing within 50mV of each rail under 2kΩ load, while internal compensation guarantees stability at unity gain. The device is explicitly characterized for video applications: differential gain error ≤ 0.02% and differential phase error ≤ 0.01° at NTSC with 150Ω load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3dB Bandwidth | 230MHz - supports full HD video signal bandwidth without attenuation |
| Slew Rate | 450V/µs - enables clean 2VP-P pulse response with 14ns settling to 0.1% |
| ESD Protection | ±15kV HBM, ±8kV IEC 1000-4-2 contact - eliminates need for external TVS diodes in exposed video I/O paths |
| Output Swing | Within 50mV of rails (VCC/VEE) with 2kΩ load - maximizes dynamic range in 5V systems |
| Supply Current | 5.5mA per amplifier - enables low-power video buffering in battery-powered instruments |
| Differential Gain/Phase | 0.02%/0.01° - meets broadcast-grade video fidelity requirements for NTSC signals |
| Input Voltage Range | VEE − 0.2V to VCC − 2.25V - allows direct connection to ground-referenced video sources |
Pinout & Package
MAX4385EEUK is housed in a 5-pin SOT23-5 package (JEDEC MO-178AA), with 1.6mm × 2.9mm footprint and 1.1mm max height. Pin 1 is marked with a dot; device orientation follows standard SOT23 top-view convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Amplifier output - drives 75Ω video loads directly; rail-to-rail swing minimizes headroom loss |
| 2 | VEE | Negative power supply - tied to ground in single-supply operation; enables input common-mode extension below GND |
| 3 | IN+ | Noninverting input - accepts ground-referenced video signals without level-shifting circuitry |
| 4 | IN− | Inverting input - used for feedback in noninverting configurations or as signal input in inverting mode |
| 5 | VCC | Positive power supply - requires local 2.2µF + 0.1µF bypassing to GND for stable high-frequency operation |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output stage | Delivers 4.9VP-P swing from 5V supply, preserving signal integrity in analog video chains |
| Ground-sensing input | Accepts inputs down to VEE − 200mV, enabling direct interface with 0V-referenced CVBS or Y/C signals |
| Integrated ±15kV ESD protection | Meets IEC 1000-4-2 Level 4 without external protection components, reducing BOM count and board area |
| 0.1dB gain flatness to 30MHz | Ensures uniform amplitude response across SD/HD video baseband spectrum (DC–30MHz) |
| Low distortion at 5MHz | −60dBc SFDR and −58dB THD enable clean composite video amplification without visible artifacts |
Applications
| Surveillance Video Systems | Set-Top Box Video Output |
|---|---|
Use Scenario: Driving analog CVBS signals from encoder ASICs to BNC connectors exposed to field environments. IC Role / Device Role / Timing Role: Video line driver with ESD-hardened I/O, providing impedance-matched 75Ω drive and DC restoration capability. Use Value: Eliminates external ESD protection and passive reconstruction networks, reducing component count by ≥3 parts per channel. |
Use Scenario: Buffering decoded YPbPr or composite video before HDMI/TV interface in consumer STB designs. IC Role / Device Role / Timing Role: High-fidelity video amplifier ensuring minimal differential gain/phase error across color subcarriers. Use Value: Maintains NTSC/PAL color fidelity (0.02%/0.01°) without calibration, supporting FCC/CE compliance out-of-box. |
| Battery-Powered Instruments | Analog-to-Digital Converter Interface |
Use Scenario: Portable oscilloscope front-end or handheld video analyzer requiring low quiescent power. IC Role / Device Role / Timing Role: Low-power, high-speed buffer isolating ADC input from noisy digital sections. Use Value: 5.5mA supply current enables >10-hour operation on 2×AA cells while maintaining 230MHz bandwidth. |
Use Scenario: Driving SAR or pipeline ADC inputs with fast-settling, low-distortion analog signals. IC Role / Device Role / Timing Role: Driver amplifier with 14ns 0.1% settling time and −60dBc SFDR at 5MHz. Use Value: Enables 10+ ENOB performance at 5MHz input frequencies without aperture jitter degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed video amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS3201DR | Higher 1.8GHz bandwidth but no integrated ±15kV ESD; requires external protection; 12mA IQ | Better for RF signal chain stages; unsuitable for unshielded video I/O without added protection | Select when bandwidth >1GHz is required and board space allows external ESD components |
| LMH6702MF/NOPB | 220MHz bandwidth, 320V/µs slew rate, ±2kV HBM ESD only; SO-8 package | Lacks IEC-rated ESD robustness; needs external TVS for industrial video ports | Choose for cost-sensitive, non-exposed video routing where external protection is acceptable |
Compared with THS3201DR and LMH6702MF/NOPB, the MAX4385EEUK uniquely integrates IEC-compliant ±15kV ESD protection with rail-to-rail output and ground-sensing input in a 5-pin SOT23, making it the only option that eliminates external protection while fitting ultra-compact layouts.
Availability
MAX4385EEUK is available at Aetrix Electronics and suitable for surveillance video systems, set-top box video outputs, and battery-powered instruments requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for MAX4385EEUK 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 demanding industrial, communications, and consumer applications.
The MAX4385EEUK belongs to Maxim's high-speed video amplifier product line, engineered specifically for ESD-hardened, low-power, rail-to-rail video line driving in space-constrained consumer and security equipment.
FAQ
What is the maximum capacitive load the MAX4385EEUK can drive without oscillation?
The MAX4385EEUK is not optimized for direct capacitive loading. Driving >10pF without isolation causes peaking and instability. A series isolation resistor (10Ω–15Ω) is required for loads >10pF; Figure 3 in the datasheet shows optimal RISO vs. CLOAD. For example, a 68pF load requires ~27Ω isolation to maintain flat frequency response. This design constraint is inherent to its high-speed architecture and must be implemented in layout.
Does the MAX4385EEUK support dual-supply operation?
Yes, the MAX4385EEUK supports dual-supply operation with VCC and VEE ranging from −0.3V to +6V total supply. However, its specified performance - including rail-to-rail output swing and input common-mode range extending beyond VEE - is fully characterized only for single 5V operation (VCC = 5V, VEE = 0V). Dual-supply use requires validation of offset, bandwidth, and distortion at the chosen rail voltages.
Can the MAX4385EEUK drive a 75Ω coaxial cable directly?
Yes, the MAX4385EEUK is explicitly designed as a video line driver for 75Ω loads. Its output stage delivers up to 50mA sourcing/sinking current and maintains 0.02%/0.01° differential gain/phase error into 150Ω (per NTSC test condition), which scales favorably to 75Ω. The typical operating circuit in the datasheet shows direct 75Ω termination with no series resistor required.
What is the purpose of the 24Ω feedback resistor recommended in unity-gain configuration?
The 24Ω resistor in the feedback path of the MAX4385EEUK reduces peaking caused by parasitic LC resonance between feedback capacitance and PCB trace inductance. It damps the Q-factor of this unintended resonant circuit, improving AC response flatness and phase margin. This resistor is not needed for gain >1 configurations but is critical for stable unity-gain video buffering per Maxim's application guidance.
Is the MAX4385EEUK pin-compatible with other devices in the MAX438x family?
No, the MAX4385EEUK (SOT23-5) is not pin-compatible with quad variants like MAX4386E (14-pin TSSOP/SO). Pin mapping differs fundamentally: MAX4385EEUK uses pins 1–5 for OUT, VEE, IN+, IN−, VCC, whereas MAX4386E allocates multiple pins per channel. Substituting packages requires PCB redesign; only the MAX4385E-series SOT23-5 variants share identical pinout.
MAX4385EEUK 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:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 450V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 230 MHz
- Current - Input Bias:
- 6.5 µA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 5.5mA
- Current - Output / Channel:
- 55 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX4385EEUK FAQ
1.How can I place an order for MAX4385EEUK through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4385EEUK 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 MAX4385EEUK reliable?
The price and inventory of MAX4385EEUK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4385EEUK is usually 5 days.
3.What payment methods are accepted for MAX4385EEUK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4385EEUK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4385EEUK?
MAX4385EEUK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4385EEUK 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 MAX4385EEUK?
For technical support, including MAX4385EEUK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4385EEUK requirements.
6.How does Aetrix verify that MAX4385EEUK is sourced from the original manufacturer or authorized distributors?
All MAX4385EEUK 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 MAX4385EEUK meets industry standards.
7.What is the process for return or replacement of MAX4385EEUK?
All MAX4385EEUK units undergo pre-shipment inspection (PSI). If there is an issue with MAX4385EEUK, 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 MAX4385EEUK part is unused and in its original packaging.
Return procedure for MAX4385EEUK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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