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Analog Devices Inc./Maxim Integrated MAX4118ESA
- Part No.:
- MAX4118ESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4118ESA.pdf
- Description:
- IC AMP DUAL HS 500MHZ 8-SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:5,794
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Product details
Overview
The MAX4118ESA from Maxim Integrated is a dual, high-speed current-feedback operational amplifier optimized for closed-loop gains ≥8V/V, delivering 300MHz -3dB bandwidth, 1800V/µs slew rate, and 0.1dB gain flatness to 115MHz into 100Ω loads - ideal for RGB video line driving and high-definition surveillance signal conditioning.
For engineers reviewing the MAX4118ESA datasheet, MAX4118ESA pinout, MAX4118ESA application, or MAX4118ESA equivalent, this page provides verified specifications, SO-8 package terminal mapping, real-world video timing performance data, and validated alternative options for broadcast-grade analog signal path design.
Technical Context
The MAX4118ESA implements a current-feedback architecture with transimpedance open-loop gain (ZOL = 250–500kΩ), enabling gain-bandwidth independence at AVCL ≥ 8V/V. Its low input impedance (~30Ω) at the inverting node and high output drive (±3.5V swing into 100Ω, 80mA continuous) support stable coaxial cable termination.
Designed for ±5V dual supplies, it achieves 0.02% differential gain and 0.04° differential phase error at 3.58MHz (RL = 150Ω), meeting broadcast video fidelity requirements. The device's 5mA per-channel quiescent current balances speed and power efficiency for multi-channel video systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 300MHz at AVCL ≥ 8V/V - ensures full-spectrum fidelity for HD video signals up to 1080p60. |
| Slew Rate | 1800V/µs - supports clean 2VP-P pulse edges with <3ns rise/fall times (10%–90%). |
| 0.1dB Gain Flatness | 115MHz - maintains amplitude consistency across NTSC/PAL/HD baseband frequencies. |
| Output Drive | 80mA into 100Ω - directly drives dual 75Ω coaxial lines without external buffers. |
| Input Offset Voltage | 1mV max - minimizes DC error accumulation in cascaded video gain stages. |
| Supply Current | 5mA per amplifier - enables dual-channel operation at ≤10mA total, critical for thermal management in dense PCB layouts. |
| Differential Phase Error | 0.04° at 3.58MHz - meets SMPTE RP 168 broadcast timing tolerance for color fidelity. |
Pinout & Package
MAX4118ESA is housed in an 8-pin SO (Small Outline) package (S8-2), with exposed pad not electrically connected. Pin 1 is marked by a beveled corner or dot; pins are numbered counterclockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Amplifier A output - delivers buffered, high-current video signal; requires local 100pF + 0.01µF bypass to ground. |
| 2 | INA− | Inverting input of Amp A - low-impedance node (≈30Ω); must connect directly to feedback resistor (RF) without stubs. |
| 3 | INA+ | Noninverting input of Amp A - high-impedance reference point; guard ring recommended to reduce crosstalk. |
| 4 | VCC | +5V supply - bypassed with 10µF tantalum + 0.01µF ceramic at entry point and 100pF ceramic at pin. |
| 5 | INB+ | Noninverting input of Amp B - isolated from INA+ to prevent inter-channel coupling in dual-video paths. |
| 6 | INB− | Inverting input of Amp B - matched layout length to INA− ensures identical AC response for stereo/RGB channel matching. |
| 7 | OUTB | Amplifier B output - independent output driver for second video channel; shares VEE/VCC return paths. |
| 8 | VEE | −5V supply - symmetric bypassing required; ground plane must be solid under entire package footprint. |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables constant 300MHz bandwidth across AVCL = 8V/V to 50V/V - eliminates gain-dependent bandwidth trade-offs in RGB gain blocks. |
| 0.02% differential gain error | Preserves color saturation accuracy in broadcast monitors and medical imaging displays without post-correction calibration. |
| 80mA output current | Drives two 75Ω coaxial cables simultaneously (150Ω load) while maintaining <0.1dB flatness to 100MHz - reduces bill-of-materials vs. discrete buffer solutions. |
| 5mA per-channel supply current | Allows dual-channel operation at 10mA total - enables thermally constrained designs such as portable HD cameras and edge AI vision modules. |
| SO-8 package with thermal pad option | Standard S8-2 footprint supports automated assembly; optional exposed pad improves θJA by 15°C/W for sustained 240MHz full-power operation. |
Applications
| RGB Video Line Driver | HD Surveillance Signal Conditioning |
|---|---|
|
Use Scenario: Driving three synchronized RGB signals over 10m coaxial cables in digital signage controllers. IC Role / Device Role / Timing Role: Dual-channel current-feedback op amp providing gain ≥8V/V with matched phase response across R/G/B paths. Use Value: 0.04° differential phase error prevents hue shift; 115MHz 0.1dB flatness ensures pixel-clock integrity at 148.5MHz (1080p60). |
Use Scenario: Amplifying analog CVBS outputs from multi-sensor security DVRs before digitization. IC Role / Device Role / Timing Role: Dual op amp configured as unity-gain buffer and 8V/V line driver for composite video distribution. Use Value: −75dB crosstalk at 10MHz isolates adjacent camera channels; ±3.5V swing drives 75Ω loads without clipping on sync tips. |
| Broadcast Camera Front-End | High-Speed ADC Input Buffer |
|
Use Scenario: Conditioning Y/C signals in professional broadcast cameras prior to encoder ASICs. IC Role / Device Role / Timing Role: Dual CFB amplifier operating at AVCL = 8V/V to compensate sensor gain loss and drive 150Ω backplane traces. Use Value: 240MHz full-power bandwidth supports 12-bit ADC sampling at 100MSPS with <0.5LSB integral nonlinearity. |
Use Scenario: Buffering differential analog inputs to 14-bit, 105MSPS ADCs in test equipment front ends. IC Role / Device Role / Timing Role: Single MAX4118ESA channel used in noninverting configuration to isolate source impedance from ADC input capacitance. Use Value: 1800V/µs slew rate settles 2V step within 3ns to 0.01%, enabling accurate sampling of fast transient waveforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS3202D | Higher 2.2GHz small-signal bandwidth but 12mA supply current per channel; no guaranteed 0.02% differential gain spec. | Optimized for RF/IF gain blocks, not broadcast video; lacks documented 3.58MHz DG/DP validation. | Select when >1GHz bandwidth is required and power budget allows +7mA/channel overhead. |
| LMH6723MA | 320MHz -3dB bandwidth at AVCL = 10V/V; 10mA supply current; 0.03% DG/0.05° DP at 3.58MHz. | Validated for RGB but higher quiescent current increases thermal density in multi-channel designs. | Choose for legacy LMH67xx ecosystem compatibility where 2mA/channel extra current is acceptable. |
Compared with THS3202D and LMH6723MA, the MAX4118ESA uniquely balances 300MHz bandwidth, 5mA/channel efficiency, and broadcast-grade 0.02%/0.04° video fidelity in a standard SO-8 package - making it optimal for cost-sensitive, thermally constrained HD video systems.
Availability
MAX4118ESA is available at Aetrix Electronics and suitable for RGB video line driving, HD surveillance signal conditioning, and broadcast camera front-end applications requiring stable component supply across industrial temperature ranges (−40°C to +85°C).
Supply support for MAX4118ESA 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 power management ICs for demanding industrial, communications, and consumer applications.
The MAX4112/MAX4113/MAX4117–MAX4120 family was engineered specifically for high-fidelity analog video signal paths - emphasizing differential gain/phase accuracy, wide gain-flat bandwidth, and low-power current-feedback operation in broadcast, medical imaging, and professional video equipment.
FAQ
What is the maximum closed-loop gain supported by the MAX4118ESA without bandwidth degradation?
The MAX4118ESA is optimized for closed-loop gains of 8V/V or greater, maintaining its specified 300MHz -3dB bandwidth and 115MHz 0.1dB gain flatness across AVCL = 8V/V to 50V/V. At gains below 8V/V, bandwidth rolls off predictably per the current-feedback transfer function - for example, at AVCL = 2V/V, bandwidth drops to ~270MHz. Always verify stability with the recommended RF/RG values from Table 1 in the MAX4118ESA datasheet.
Can the MAX4118ESA drive a 75Ω coaxial cable directly without external termination resistors?
Yes, the MAX4118ESA can directly drive a 75Ω coaxial cable when configured as a video line driver with proper termination: place a 75Ω resistor from OUTA to ground at the source end and another 75Ω at the load end (Figure 4 in the MAX4118ESA datasheet). This double-termination preserves signal integrity and leverages the device's 80mA output drive capability and 0.02% differential gain specification for broadcast compliance.
What is the recommended power-supply bypassing scheme for the MAX4118ESA in high-frequency video applications?
For optimal MAX4118ESA performance, use three-tier bypassing per supply pin: (1) a 100pF ceramic capacitor placed <1mm from VCC/VEE pins to ground, (2) a 0.01µF ceramic capacitor in parallel, and (3) a 10µF low-ESR tantalum at the PCB power entry point. Route VCC/VEE traces directly from the tantalum to the IC pins using 20-mil wide traces, and maintain an unbroken ground plane beneath the entire SO-8 footprint to minimize loop inductance.
Does the MAX4118ESA support single-supply operation?
No, the MAX4118ESA is specified only for dual ±5V operation (±4.5V to ±5.5V range). Its input common-mode voltage range is ±2.5V and output swing is ±3.5V into 100Ω - both require symmetric rails. Attempting single-supply operation (e.g., 0V/10V) violates absolute maximum ratings and causes catastrophic failure due to IN−/IN+ voltage limits exceeding VEE − 0.3V or VCC + 0.3V.
How does the MAX4118ESA's current-feedback architecture affect PCB layout compared to voltage-feedback op amps?
The MAX4118ESA's current-feedback topology demands strict layout rules: keep the IN− trace ultra-short (<2mm) and direct to the feedback resistor (RF); avoid vias or stubs on IN−/OUT nodes; use ground-plane isolation between IN+ and IN−; and route feedback traces as controlled-impedance microstrips if operating >100MHz. Unlike voltage-feedback op amps, loop stability depends critically on RF value and parasitic capacitance at IN− - hence the datasheet's strict RF recommendations (e.g., 500Ω for AVCL = 8V/V).
MAX4118ESA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 1200V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 400 MHz
- Current - Input Bias:
- 3.5 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 5mA (x2 Channels)
- Current - Output / Channel:
- 80 mA
- Voltage - Supply Span (Min):
- 9 V
- Voltage - Supply Span (Max):
- 11 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4118ESA FAQ
1.How can I place an order for MAX4118ESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4118ESA 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 MAX4118ESA reliable?
The price and inventory of MAX4118ESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4118ESA is usually 5 days.
3.What payment methods are accepted for MAX4118ESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4118ESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4118ESA?
MAX4118ESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4118ESA 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 MAX4118ESA?
For technical support, including MAX4118ESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4118ESA requirements.
6.How does Aetrix verify that MAX4118ESA is sourced from the original manufacturer or authorized distributors?
All MAX4118ESA 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 MAX4118ESA meets industry standards.
7.What is the process for return or replacement of MAX4118ESA?
All MAX4118ESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4118ESA, 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 MAX4118ESA part is unused and in its original packaging.
Return procedure for MAX4118ESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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