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Analog Devices Inc./Maxim Integrated MAX4224EUT+T
- Part No.:
- MAX4224EUT+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
MAX4224EUT+T.pdf
- Description:
- IC OPAMP CFA 1 CIRCUIT SOT6
- Quantity:
- Payment:
- Shipping:
Inventory:7,107
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Product details
Overview
The MAX4224EUT+T from Maxim Integrated is a single-channel, current-feedback operational amplifier optimized for closed-loop gain ≥ +2 (6dB), delivering 600MHz -3dB bandwidth, 1700V/µs slew rate, and 5ns 0.1% settling time. It operates on ±2.85V to ±5.5V dual supplies, draws only 6mA quiescent current, and features TTL-compatible shutdown control-making it ideal for high-speed video line drivers and ADC input buffering in space-constrained portable systems.
For engineers reviewing the MAX4224EUT+T datasheet, MAX4224EUT+T pinout, MAX4224EUT+T application, or MAX4224EUT+T equivalent, this page provides verified technical context, real-world design meaning of key specs, validated SOT23-6 pin mapping, video-optimized performance tradeoffs, and two confirmed alternative parts with documented functional differences.
Technical Context
The MAX4224EUT+T uses current-feedback topology with transimpedance gain stage, enabling gain-bandwidth independence at AV ≥ +2 - its 600MHz bandwidth remains stable across gains of +2, +5, and +10 when using optimized RF/RG networks (e.g., 470Ω/470Ω for +2V/V). Its internal compensation targets stability only at closed-loop gains ≥ +2, and it exhibits 0.1dB gain flatness to 300MHz with differential gain/phase errors of 0.01% and 0.02°.
Shutdown mode reduces supply current to 350µA and raises output impedance to 100kΩ, supporting multiplexing without external isolation switches. The device drives up to four back-terminated 75Ω video loads to ±2.5V while maintaining <0.02° phase error - a capability enabled by low THD (-60dBc at 10MHz) and high third-order intercept (42dBm at 30MHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 600MHz at AV = +2V/V - supports baseband video (SD/HD) and XDSL signal paths without gain peaking |
| Slew Rate | 1700V/µs - enables clean 2V-step response in ≤5ns, critical for driving fast ADC sample-and-hold inputs |
| THD | -60dBc at 10MHz, RL = 150Ω - ensures minimal harmonic contamination in analog signal chains feeding 10-bit+ ADCs |
| Differential Gain/Phase | 0.01% / 0.02° - meets broadcast-grade video fidelity requirements (SMPTE 253M/421M) |
| Supply Current | 6.0mA per amplifier (normal mode); 0.35mA (shutdown) - enables battery runtime extension in portable test equipment |
| Output Drive | ±2.5V into 4×75Ω back-terminated loads - eliminates need for external buffer stages in multi-channel video distribution |
| Shutdown Isolation | -140dB at 10MHz - allows >60dB channel-to-channel crosstalk suppression in video multiplexer designs |
Pinout & Package
MAX4224EUT+T is housed in a 6-pin SOT23 package (JEDEC MO-178AA), with exposed pad not internally connected. Pin 1 is marked via top-side laser etch "AAAD".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN-) | Inverting Input | Current-feedback node; requires minimal parasitic capacitance - no ground plane beneath pin or feedback resistors |
| 2 (IN+) | Noninverting Input | High-impedance voltage-sensing node; bias current 2µA max at +25°C |
| 3 (VEE) | Negative Supply Rail | Accepts -2.85V to -5.5V; must be bypassed with 10nF ceramic capacitor directly to ground plane |
| 4 (SHDN) | Shutdown Control Input | TTL-compatible: <0.8V = shutdown (350µA IQ), >2.0V = active; drives high-Z output state |
| 5 (OUT) | Amplifier Output | Capable of sourcing/sinking 80mA; 100kΩ output impedance in shutdown mode enables passive muxing |
| 6 (VCC) | Positive Supply Rail | Accepts +2.85V to +5.5V; requires local 10nF ceramic bypass to ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Gain-stable architecture | Compensated for AV ≥ +2V/V - avoids instability when used in +2, +5, or +10 gain configurations |
| Video-optimized linearity | 0.01% DG / 0.02° DP and 300MHz 0.1dB flatness - satisfies NTSC/PAL composite video and RGB component timing |
| Low-power shutdown | 350µA supply current and 100kΩ output Z - enables channel selection in 4:1 video switch without PCB-level relays |
| High-output-current drive | 80mA continuous, ±2.5V swing into 75Ω - directly interfaces with coaxial video transmission lines without external buffers |
| Ultrafast settling | 5ns to 0.1% for 2V step - meets sampling window requirements of 200+ MSPS ADCs |
Applications
| ADC Input Buffers | Video Line Drivers |
|---|---|
Use Scenario: Buffering high-impedance sensor outputs before 12-bit, 100MSPS ADC sampling. IC Role / Device Role / Timing Role: High-slew-rate current-feedback amplifier providing fast charge transfer to ADC's dynamic input capacitance. Use Value: 5ns settling ensures full-scale accuracy within sampling aperture; -60dBc THD prevents harmonic aliasing into Nyquist band. |
Use Scenario: Driving 75Ω coaxial cable runs from camera head to processing unit in broadcast cameras. IC Role / Device Role / Timing Role: Unity-gain stable video driver delivering broadcast-compliant differential gain/phase performance. Use Value: 0.01%/0.02° DG/DP and 300MHz flatness preserve color fidelity and edge sharpness over 100m cable lengths. |
| Video Multiplexing | XDSL Line Drivers |
Use Scenario: Selecting one of four video sources onto a shared display path using passive summing. IC Role / Device Role / Timing Role: Shutdown-enabled amplifier acting as digitally controlled analog switch with high off-isolation. Use Value: 100kΩ shutdown output Z and -140dB isolation at 10MHz prevent crosstalk between inactive channels. |
Use Scenario: Transmitting ADSL2+ upstream signals (up to 2.2MHz) over twisted-pair telephone lines. IC Role / Device Role / Timing Role: High-linearity driver amplifying DAC output to meet ITU-T G.992.5 spectral mask requirements. Use Value: 42dBm IP3 suppresses third-order intermodulation products that would otherwise violate emission limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4225ESA+ | Unity-gain stable (AV ≥ +1), 1GHz bandwidth, higher 1100V/µs slew rate, 8-pin SO package | Better suited for AV = +1 video buffers and wideband instrumentation where gain flexibility is required | Select MAX4225ESA+ when closed-loop gain may drop to +1 and board space allows SO-8; avoid for fixed +2 gain due to potential instability |
| LMH6720MF/NOPB | Unity-gain stable, 1.8GHz bandwidth, 3200V/µs slew rate, 6-pin SOT23, no shutdown pin | Higher speed but lacks power-down capability; requires external enable logic for multiplexing | Choose LMH6720MF/NOPB for maximum bandwidth in non-multiplexed ADC front-ends; use MAX4224EUT+T when shutdown control and video fidelity are prioritized |
Compared with MAX4225ESA+, the MAX4224EUT+T trades 400MHz bandwidth for guaranteed +2V/V stability and integrated shutdown - simplifying video switch design. Against LMH6720MF/NOPB, it sacrifices 1.2GHz bandwidth to deliver 100kΩ shutdown impedance and broadcast-grade DG/DP, reducing system-level BOM count in portable video gear.
Availability
MAX4224EUT+T is available at Aetrix Electronics and suitable for professional video equipment, high-speed data acquisition systems, and portable test instruments requiring stable component supply, extended temperature operation (-40°C to +85°C), and RoHS-compliant packaging.
Supply support for MAX4224EUT+T 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 MAX4223–MAX4228 family was engineered specifically for ultra-high-speed video signal conditioning and multiplexing, emphasizing low distortion, gain flatness, and integrated power control in miniature packages.
FAQ
What is the minimum stable closed-loop gain for the MAX4224EUT+T?
The MAX4224EUT+T is compensated for closed-loop gains of +2V/V (6dB) or greater. Using it at unity gain (+1V/V) risks instability and peaking in frequency response. For AV = +1 applications, select the MAX4223EUT+T or MAX4225ESA+ instead. The MAX4224EUT+T datasheet specifies optimal RF/RG values only for gains ≥ +2, confirming its gain-stable design boundary.
Does the MAX4224EUT+T support single-supply operation?
No - the MAX4224EUT+T requires dual supplies ranging from ±2.85V to ±5.5V. Its input common-mode range is specified as ±2.5V, and output swing is symmetric about ground. Single-supply operation is not supported; attempting to bias inputs or outputs outside the specified VCM and VOUT ranges will cause clipping or malfunction. Use the MAX4224EUT+T only in true dual-rail systems.
How does the shutdown feature of the MAX4224EUT+T affect output impedance?
In shutdown mode (SHDN pin <0.8V), the MAX4224EUT+T output transitions to a high-impedance state with typical impedance of 100kΩ - verified in AC electrical characteristics tables. This allows multiple MAX4224EUT+T outputs to be tied together in video multiplexing applications without loading the active channel. Normal-mode output impedance is <2Ω at DC, dropping further at higher frequencies.
Can the MAX4224EUT+T drive 75Ω back-terminated video lines directly?
Yes - the MAX4224EUT+T is explicitly characterized to drive up to four back-terminated 75Ω loads to ±2.5V while maintaining 0.01% differential gain and 0.02° differential phase error. This capability is confirmed in the General Description and Applications sections of the datasheet, eliminating need for external current-boosting stages in SD/HD video distribution.
What is the recommended feedback resistor value for a +2V/V gain configuration with the MAX4224EUT+T?
The datasheet specifies 470Ω for both RF and RG in +2V/V configurations using the SOT23-6 package (MAX4224EUT+T). This value delivers optimal bandwidth (600MHz), minimal peaking (<0.5dB), and best THD performance. Deviating significantly from 470Ω - especially lower values - increases bandwidth but introduces gain peaking; higher values reduce bandwidth and degrade settling behavior.
MAX4224EUT+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 1700V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 600 MHz
- Current - Input Bias:
- 4 µA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 6mA
- 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:
- SOT-6
MAX4224EUT+T FAQ
1.How can I place an order for MAX4224EUT+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4224EUT+T 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 MAX4224EUT+T reliable?
The price and inventory of MAX4224EUT+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4224EUT+T is usually 5 days.
3.What payment methods are accepted for MAX4224EUT+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4224EUT+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4224EUT+T?
MAX4224EUT+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4224EUT+T 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 MAX4224EUT+T?
For technical support, including MAX4224EUT+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4224EUT+T requirements.
6.How does Aetrix verify that MAX4224EUT+T is sourced from the original manufacturer or authorized distributors?
All MAX4224EUT+T 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 MAX4224EUT+T meets industry standards.
7.What is the process for return or replacement of MAX4224EUT+T?
All MAX4224EUT+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4224EUT+T, 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 MAX4224EUT+T part is unused and in its original packaging.
Return procedure for MAX4224EUT+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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