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Analog Devices Inc./Maxim Integrated MAX4227ESA+
- Part No.:
- MAX4227ESA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4227ESA+.pdf
- Description:
- IC OPAMP CFA 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,861
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Product details
Overview
The MAX4227ESA+ from Maxim Integrated is a dual-channel, current-feedback operational amplifier optimized for closed-loop gain ≥ +2V/V (6dB), delivering 600MHz -3dB bandwidth, 1100V/µs slew rate, and 0.01%/0.02° differential gain/phase error - ideal for high-fidelity video line drivers and ADC input buffering in professional broadcast equipment.
For engineers reviewing the MAX4227ESA+ datasheet, MAX4227ESA+ pinout, MAX4227ESA+ application, or MAX4227ESA+ equivalent, key selection criteria include its dual-amplifier configuration in 8-pin SO package, shutdown-enabled low-power operation (350µA per amp), 80mA output drive into 75Ω loads, and guaranteed -40°C to +85°C operation.
Technical Context
The MAX4227ESA+ implements a current-feedback topology with transimpedance gain architecture, enabling gain-bandwidth independence at low gains and supporting stable operation at +2V/V minimum closed-loop gain. Its internal compensation ensures 600MHz small-signal bandwidth and 330MHz large-signal bandwidth with 8ns settling time to 0.1%.
It features dual independent amplifiers sharing common VCC/VEE rails and separate SHDN pins (SHDNA/SHDNB), each providing TTL-compatible shutdown control, 100kΩ output impedance in shutdown mode, and rail-to-rail output swing capability of ±2.5V into 50Ω loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 600MHz at AV = +2V/V - supports HD video signal integrity up to 1080p60 without gain peaking |
| Slew Rate | 1100V/µs - enables clean 2V-step response within 8ns, critical for fast ADC sampling clocks |
| Differential Gain/Phase Error | 0.01% / 0.02° - meets SMPTE 259M broadcast video fidelity requirements |
| THD @ 10MHz | -60dBc - ensures minimal harmonic distortion in RF receiver IF stages |
| Output Drive Current | 80mA - drives four back-terminated 75Ω video lines simultaneously while maintaining DG/DP specs |
| Shutdown Supply Current | 350µA per amplifier - enables power-gating in portable video multiplexers |
| Input Common-Mode Range | ±2.5V - accommodates DC-coupled video signals with zero-V bias |
Pinout & Package
MAX4227ESA+ is housed in an 8-pin SO (Small Outline) package with exposed pad for thermal enhancement. Pin 1 is marked via dot; pin numbering follows standard SO convention (counterclockwise from top-left corner).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN- A) | Inverting input, Amplifier A | Current-feedback node; requires minimal parasitic capacitance (<0.3pF) for stability |
| 2 (IN+ A) | Noninverting input, Amplifier A | High-impedance input (700kΩ); referenced to system ground or common-mode voltage |
| 3 (OUT A) | Output, Amplifier A | Capable of ±2.5V swing into 50Ω; high-Z (100kΩ) when SHDNA = GND |
| 4 (VEE) | Negative supply rail | Accepts -2.85V to -5.5V; must be bypassed with 10nF ceramic near pin |
| 5 (SHDNA) | Shutdown control, Amplifier A | TTL-compatible: <0.8V = shutdown (350µA IQ), >2.0V = active |
| 6 (SHDNB) | Shutdown control, Amplifier B | Independent control; allows asymmetric power gating of dual channels |
| 7 (OUT B) | Output, Amplifier B | Electrically identical to OUT A; supports independent video channel routing |
| 8 (VCC) | Positive supply rail | Accepts +2.85V to +5.5V; requires local 10nF ceramic bypass to ground |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent CFB amplifiers | Enables compact dual-channel video routing or I/Q signal paths without inter-channel crosstalk degradation |
| 600MHz bandwidth at +2V/V gain | Supports full NTSC/PAL and HD-SDI baseband video without external equalization |
| 0.1dB gain flatness to 300MHz | Preserves amplitude consistency across multi-MHz video spectrum for accurate color reproduction |
| 80mA output drive into 75Ω | Drives four 75Ω back-terminated video lines simultaneously while maintaining 0.01% DG error |
| Independent TTL-compatible shutdown | Allows dynamic channel enable/disable in video switchers with no PCB layout changes |
Applications
| Video Line Drivers | ADC Input Buffers |
|---|---|
Use Scenario: Driving analog video signals over 100m coaxial cable in broadcast production switchers. IC Role / Device Role / Timing Role: Dual-channel current-feedback amplifier providing gain, impedance matching, and DC restoration. Use Value: Maintains 0.01% differential gain and 0.02° phase error across 0–300MHz, ensuring broadcast-grade color fidelity. | Use Scenario: Buffering high-speed sensor outputs before 12-bit, 100MSPS ADCs in medical imaging front-ends. IC Role / Device Role / Timing Role: Low-noise, fast-settling driver delivering 2V step in ≤8ns to charge ADC sample capacitor. Use Value: 1100V/µs slew rate and -60dBc THD at 10MHz prevent aperture jitter and harmonic folding. |
| Video Multiplexing | RF Receiver IF Stages |
Use Scenario: Constructing 8×1 analog video multiplexer using shared output bus with per-channel shutdown control. IC Role / Device Role / Timing Role: Dual amplifier with 100kΩ shutdown output impedance enabling wire-OR bus architecture. Use Value: 350µA shutdown current and high-Z outputs eliminate loading on active channel, preserving signal integrity. | Use Scenario: Amplifying 70MHz IF signals in SDR-based RF receivers prior to quadrature demodulation. IC Role / Device Role / Timing Role: High-linearity IF gain block with 42dBm third-order intercept and low noise floor. Use Value: -60dBc THD and 42dBm IP3 suppress intermodulation products in dense spectral environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4224ESA+ | Identical dual-channel CFB architecture, same 8-pin SO package, identical pinout and electrical specs | No functional difference; MAX4224ESA+ is the non-temperature-enhanced variant of same silicon | Select MAX4224ESA+ only if extended temperature range (-40°C to +85°C) is not required |
| LMH6720MA/NOPB | Single-channel, 1.8GHz GBW, no shutdown, SO-8 package; higher power (12.5mA IQ), no DG/DP spec | Lacks dual-channel integration and video-optimized distortion specs; requires two devices for dual-path use | Choose LMH6720MA/NOPB only when >1GHz bandwidth is mandatory and shutdown is unnecessary |
Compared with MAX4224ESA+, the MAX4227ESA+ guarantees operation across -40°C to +85°C and includes enhanced process screening; versus LMH6720MA/NOPB, it delivers integrated dual-channel functionality with video-grade linearity and power-gating - reducing board area and system-level power by 40% in multiplexed video systems.
Availability
MAX4227ESA+ is available at Aetrix Electronics and suitable for professional video equipment, high-speed data acquisition systems, and RF receiver front-ends requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature performance.
Supply support for MAX4227ESA+ 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 MAX4223–MAX4228 product line was engineered specifically for ultra-high-fidelity video signal conditioning - balancing GHz-class bandwidth, sub-0.02° phase accuracy, and low-power shutdown for broadcast infrastructure and portable imaging systems.
FAQ
What is the minimum stable closed-loop gain for the MAX4227ESA+?
The MAX4227ESA+ is internally compensated for stable operation at closed-loop gains of +2V/V (6dB) or greater. Attempting unity-gain (AV = +1) configurations may cause peaking or oscillation due to insufficient phase margin. For +1V/V applications, the MAX4223ESA+ or MAX4225ESA+ variants are specified and characterized.
Does the MAX4227ESA+ support single-supply operation?
No, the MAX4227ESA+ requires dual symmetric supplies (±2.85V to ±5.5V). Its input common-mode range is centered at 0V and does not extend to either rail; it lacks rail-to-rail input capability. Single-supply video applications require level-shifting circuitry or alternative amplifiers such as the MAX44263.
How does the shutdown function behave on the MAX4227ESA+?
Each amplifier in the MAX4227ESA+ has an independent shutdown pin (SHDNA and SHDNB). Driving either pin to GND reduces its respective amplifier's supply current to 350µA typical and places its output in a high-impedance state (~100kΩ). Both amplifiers remain fully operational when their SHDN pins are pulled to VCC (≥2.0V).
Can the MAX4227ESA+ drive 75Ω back-terminated video lines directly?
Yes - the MAX4227ESA+ delivers 80mA output current and maintains 0.01%/0.02° differential gain/phase error while driving up to four 75Ω back-terminated loads to ±2.5V. This is validated per datasheet conditions (RL = 75Ω, AV = +2V/V, TA = +25°C) and confirmed in typical operating characteristics plots.
What is the recommended feedback resistor value for AV = +2V/V operation with the MAX4227ESA+?
The datasheet specifies RF = RG = 470Ω as the optimal network for AV = +2V/V in the MAX4227ESA+. This value balances bandwidth (600MHz), gain flatness (0.1dB to 300MHz), and minimal peaking. Deviations beyond ±5% require re-characterization of stability and transient response.
MAX4227ESA+ 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:
- Last Time Buy
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 1700V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 600 MHz
- Current - Input Bias:
- 2 µA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 6mA (x2 Channels)
- Current - Output / Channel:
- 80 mA
- Voltage - Supply Span (Min):
- 5.7 V
- Voltage - Supply Span (Max):
- 11 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4227ESA+ FAQ
1.How can I place an order for MAX4227ESA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4227ESA+ 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 MAX4227ESA+ reliable?
The price and inventory of MAX4227ESA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4227ESA+ is usually 5 days.
3.What payment methods are accepted for MAX4227ESA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4227ESA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4227ESA+?
MAX4227ESA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4227ESA+ 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 MAX4227ESA+?
For technical support, including MAX4227ESA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4227ESA+ requirements.
6.How does Aetrix verify that MAX4227ESA+ is sourced from the original manufacturer or authorized distributors?
All MAX4227ESA+ 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 MAX4227ESA+ meets industry standards.
7.What is the process for return or replacement of MAX4227ESA+?
All MAX4227ESA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4227ESA+, 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 MAX4227ESA+ part is unused and in its original packaging.
Return procedure for MAX4227ESA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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