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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 OPAMP CFA 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:735
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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 device is selected for demanding analog signal paths requiring wide bandwidth, low distortion (DG = 0.02%, DP = 0.04°), and ±3.5V output swing at 80mA drive capability in an 8-pin SO package.
Technical Context
The MAX4118ESA+ employs a current-feedback architecture with open-loop transimpedance (ZOL) of 250–500kΩ, enabling gain-bandwidth independence at AVCL ≥ 8V/V. Its inverting input (IN−) serves as a low-impedance current summing node (~30Ω), while the noninverting input (IN+) provides high-impedance voltage sensing.
Designed for ±4.5V to ±5.5V dual supplies, it achieves 240MHz full-power bandwidth (2VP-P), 270MHz large-signal -3dB bandwidth, and maintains < −75dB crosstalk up to 40MHz - critical for multi-channel video systems where channel isolation and pulse fidelity are essential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 300MHz at AVCL ≥ 8V/V - supports HD video baseband signals without attenuation |
| Slew Rate | 1800V/µs - enables clean 2VP-P pulse response with ≤3ns rise/fall times |
| 0.1dB Gain Flatness | 115MHz - ensures minimal amplitude variation across NTSC/PAL/HD video spectra |
| Output Drive | ±3.5V into 100Ω, 80mA - drives terminated 75Ω coaxial lines with headroom for back-termination |
| Supply Current | 5mA per amplifier - enables dual-channel operation at <10mA total, suitable for power-sensitive imaging modules |
| Differential Gain/Phase | 0.02% / 0.04° at RL = 150Ω - meets broadcast-grade video fidelity requirements |
| Input Voltage Noise | 2.2nV/√Hz - preserves SNR in low-level analog front-ends such as ultrasound receive paths |
Pinout & Package
MAX4118ESA+ is housed in an 8-pin SO (Small Outline) package (S8-2), with exposed pad not electrically connected. Pin 1 is OUTA, Pin 2 is INA−, Pin 3 is INA+, Pin 4 is VCC (+5V), Pin 5 is INB+, Pin 6 is INB−, Pin 7 is OUTB, and Pin 8 is VEE (−5V). Pins 1, 5, and 8 are not internally connected on MAX4112/MAX4113 but are functional on MAX4118ESA+ per datasheet pin table.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | Amplifier A Output | Low-impedance voltage source driving external load or feedback network |
| 2 (INA−) | Amplifier A Inverting Input | Current-summing node (~30Ω); must be driven via feedback resistor (RF) for stability |
| 3 (INA+) | Amplifier A Noninverting Input | High-impedance reference input; sets common-mode level for A channel |
| 4 (VCC) | Positive Power Supply | +4.5V to +5.5V supply rail; requires local 1000pF + 0.01µF bypassing |
| 5 (INB+) | Amplifier B Noninverting Input | Independent high-Z input for second channel; isolated from A channel per pinout |
| 6 (INB−) | Amplifier B Inverting Input | Current-summing node for B channel; separate RF path required for each amplifier |
| 7 (OUTB) | Amplifier B Output | Second independent output; supports dual-video or I/Q signal processing |
| 8 (VEE) | Negative Power Supply | −4.5V to −5.5V supply rail; symmetric bypassing required for PSR > 45dB |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables constant bandwidth across AVCL ≥ 8V/V - eliminates gain-bandwidth trade-off in video gain stages |
| 0.1dB gain flatness to 115MHz | Preserves chroma/luma amplitude integrity across full HD baseband (0–70MHz) without equalization |
| 240MHz full-power bandwidth (2VP-P) | Supports fast transient response in pulse amplifiers and ADC buffer applications without slewing distortion |
| ±3.5V output swing into 100Ω | Drives standard 75Ω video lines with 2× back-termination margin, reducing reflections and settling errors |
| 80mA output current | Delivers 100mA peak into short-term capacitive loads (e.g., cable charging), preventing clipping during edge transitions |
| Differential gain/phase error | 0.02%/0.04° at 3.58MHz - exceeds SMPTE RP-168 broadcast compliance for professional camera outputs |
Applications
| RGB Video Line Driver | High-Definition Surveillance Encoder |
|---|---|
Use Scenario: Driving three synchronized analog RGB signals over 10m coaxial cables to a display controller. IC Role / Device Role / Timing Role: Dual-channel current-feedback op amp configured as unity-gain buffer (AVCL = +1) with external 75Ω termination. Use Value: Maintains 0.02% differential gain and 0.04° phase accuracy across 0–70MHz, eliminating color shift and timing skew between channels. |
Use Scenario: Conditioning composite video output from a 1080p CMOS image sensor before digitization. IC Role / Device Role / Timing Role: Single MAX4118ESA+ channel used as AC-coupled video amplifier with 8V/V gain to match ADC input range. Use Value: 115MHz 0.1dB flatness ensures faithful reproduction of fine detail and motion edges without high-frequency roll-off. |
| Ultrasound Receive Beamformer | Professional Camera Analog Output Stage |
Use Scenario: Amplifying low-amplitude, wideband echo signals (1–15MHz) from phased-array transducers. IC Role / Device Role / Timing Role: Dual-channel configuration: one channel for I-signal, one for Q-signal in quadrature demodulation path. Use Value: 2.2nV/√Hz input voltage noise and 240MHz full-power bandwidth preserve SNR and transient fidelity in time-gain compensation circuits. |
Use Scenario: Final-stage buffering of Y/C or component video outputs in broadcast-grade digital cinema cameras. IC Role / Device Role / Timing Role: Dual MAX4118ESA+ used for simultaneous Y and C signal amplification with matched gain/phase response. Use Value: < −75dB inter-channel crosstalk at 40MHz prevents luminance leakage into chrominance path, preserving color purity. |
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 | Single-channel, 1.8GHz GBW, 4000V/µs slew rate; higher power (11mA/ch), no integrated 0.1dB flatness spec | Requires two devices for dual-channel use; better suited for RF IF amplification than video line driving | Select when >1GHz small-signal bandwidth is required and layout allows dual SO-8 placement |
| LMH6720MA | Dual-channel, 1.8GHz GBW, 3000V/µs slew; higher quiescent current (9.5mA/ch), wider supply range (±2.5V to ±6V) | Superior harmonic distortion (−80dBc @ 5MHz) but lacks documented differential gain/phase specs for video | Prefer for high-fidelity ADC buffering where SNR > 75dB is critical, not for broadcast video compliance |
Compared with THS3202D and LMH6720MA, the MAX4118ESA+ offers tighter video-specific specifications (DG/DP, 0.1dB flatness), lower power (5mA/ch), and guaranteed dual-channel matching in one SO-8 package - making it optimal for space-constrained, standards-compliant video systems.
Availability
MAX4118ESA+ is available at Aetrix Electronics and suitable for RGB video line driving, high-definition surveillance encoder design, and ultrasound receive beamforming requiring stable component supply and long-term production continuity.
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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX4112/MAX4113/MAX4117–MAX4120 family was designed specifically for high-fidelity, high-speed analog signal conditioning in broadcast video, medical imaging, and test equipment - emphasizing bandwidth, low distortion, and dual/quad integration.
FAQ
What is the recommended power-supply bypassing scheme for MAX4118ESA+?
For optimal AC performance, place a 1000pF ceramic capacitor between each supply pin (VCC and VEE) and ground, located as close to the package as possible. Add a 0.01µF ceramic capacitor in parallel with each 1000pF cap, and include a 10µF low-ESR tantalum capacitor at the PCB power entry point. The MAX4118ESA+ requires this multi-tier bypassing to maintain >45dB PSR and prevent oscillation at high frequencies.
Can MAX4118ESA+ drive a 75Ω coaxial cable directly?
Yes - the MAX4118ESA+ is explicitly characterized for 75Ω video line driving. With ±3.5V output swing into 100Ω and 80mA drive capability, it delivers full 2VP-P into a 75Ω load with headroom for back-termination. The datasheet includes Figure 4 showing a standard 75Ω double-terminated configuration using RG and RF resistors, confirming direct compatibility with broadcast video infrastructure.
What is the minimum stable closed-loop gain for MAX4118ESA+?
The MAX4118ESA+ is optimized for closed-loop gains of 8V/V or greater. While it may operate at lower gains, bandwidth, slew rate, and stability margins degrade significantly below AVCL = 8. The datasheet specifies 300MHz -3dB bandwidth and 115MHz 0.1dB flatness only at AVCL ≥ 8V/V; using MAX4118ESA+ at AVCL = 2V/V is not recommended and falls outside guaranteed specifications.
Does MAX4118ESA+ support single-supply operation?
No - the MAX4118ESA+ is specified only for dual-supply operation from ±4.5V to ±5.5V. Its input common-mode range is ±2.5V and output swing is centered around ground (±3.5V into 100Ω), requiring symmetric rails. Attempting single-supply operation (e.g., 0V and +10V) violates absolute maximum ratings and results in undefined behavior, clipping, or damage.
How does MAX4118ESA+ compare to MAX4117ESA+ in video applications?
The MAX4118ESA+ is optimized for AVCL ≥ 8V/V (300MHz BW, 115MHz 0.1dB flatness), while MAX4117ESA+ targets AVCL ≥ 2V/V (400MHz BW, no 0.1dB flatness spec). For RGB video gain stages requiring precise amplitude flatness across HD spectrum, MAX4118ESA+ delivers superior differential gain/phase (0.02%/0.04° vs. 0.02%/0.03°) and guaranteed 115MHz flatness - making it the preferred choice for broadcast-compliant designs.
MAX4118ESA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- 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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