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Analog Devices Inc./Maxim Integrated MAX4202EUK
- Part No.:
- MAX4202EUK
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4202EUK.pdf
- Description:
- LOW-POWER, OPEN-LOOP BUFFER
- Quantity:
- Payment:
- Shipping:
Inventory:1,243
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Product details
Overview
MAX4202EUK from Maxim Integrated is a single-channel, ultra-high-speed, open-loop buffer optimized for driving 75Ω transmission lines in high-frequency analog signal paths. It delivers 720MHz -3dB bandwidth, 4200V/µs slew rate, ±90mA output drive, and 2.1nV/√Hz input voltage-noise density, enabling precise buffering of IF/RF signals in video and communications systems.
For engineers reviewing the MAX4202EUK datasheet, MAX4202EUK pinout, MAX4202EUK application, or MAX4202EUK equivalent, this device is selected for high-fidelity coaxial cable driving where back-termination, low group-delay variation (405ps), and minimal harmonic distortion (-47dBc at 10MHz) are critical to signal integrity.
Technical Context
The MAX4202EUK employs a proprietary open-loop architecture with local feedback around its class-AB output stage, eliminating dominant-pole compensation to achieve near-constant group delay and wideband flatness. Its integrated 75Ω back-termination resistor enables direct connection to 75Ω coaxial cables without external components.
This architecture avoids closed-loop stability issues with capacitive loads while maintaining gain stability across temperature and supply variations (±4V to ±5.5V). Input impedance is 500kΩ || 2pF, and output impedance remains low (<6Ω) up to 100MHz due to demand-driven biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 720MHz - supports full HD video and multi-carrier IF signals without attenuation |
| Slew Rate | 4200V/µs - ensures faithful reproduction of fast transient signals up to 2Vp-p |
| Output Drive | ±90mA - drives heavy capacitive loads and 75Ω cables with minimal droop |
| Voltage-Noise Density | 2.1nV/√Hz - preserves SNR in ADC input buffering and low-level RF amplification |
| Supply Current | 2.2mA per buffer - enables low-power operation in space-constrained, high-density designs |
| Input Offset Voltage | 15mV max - maintains DC accuracy in precision analog signal chains |
| Operating Temp Range | -40°C to +85°C - qualified for industrial and broadcast equipment environments |
Pinout & Package
The MAX4202EUK is housed in a 5-pin SOT23-5 package (package code U5-1), with exposed pad not internally connected. Pin 1 is N.C., Pin 2 is VEE (–5V), Pin 3 is IN, Pin 4 is VCC (+5V), and Pin 5 is OUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| N.C. | No Connection | Not internally bonded; must be left floating or grounded per layout best practice |
| VEE | Negative Supply | Reference for dual-supply operation; requires local 0.1µF bypass to ground |
| IN | Buffer Input | High-impedance node (500kΩ || 2pF); sensitive to parasitic capacitance and trace inductance |
| VCC | Positive Supply | Reference for dual-supply operation; requires local 0.1µF bypass to ground |
| OUT | Buffer Output | 75Ω back-terminated output; delivers matched drive to coaxial cable without external resistor |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 75Ω termination | Eliminates external resistor, reduces board area, and ensures impedance match for broadcast video lines |
| 405ps group delay flatness | Minimizes phase distortion across 720MHz bandwidth-critical for multi-tone IF signals |
| Capacitive-load stability | Operates without oscillation into >200pF loads; no external compensation required |
| Low 0.8pA/√Hz current noise | Preserves dynamic range when driving high-Z sources like transformer-coupled antennas |
| 280MHz 0.1dB gain flatness | Maintains amplitude consistency across NTSC/PAL video bandwidth and WLAN IF bands |
Applications
| Video Signal Distribution | IF Amplifier Buffering |
|---|---|
Use Scenario: Driving composite video signals over 75Ω coaxial cable in broadcast monitoring systems. IC Role / Device Role / Timing Role: Single-ended open-loop buffer with integrated 75Ω back-termination. Use Value: Eliminates external termination resistor, reduces group delay variation to <10ps over 0–5.5MHz, and maintains differential gain error <1.3%. |
Use Scenario: Buffering intermediate frequency outputs from mixers in software-defined radio receivers. IC Role / Device Role / Timing Role: High-bandwidth, low-noise voltage follower placed before ADC sampling stage. Use Value: Delivers 720MHz bandwidth and –47dBc SFDR at 10MHz, preserving spectral purity for 14-bit ADC digitization. |
| Digital Transmission Line Driver | High-Speed DAC Output Stage |
Use Scenario: Transmitting high-data-rate serial video (e.g., SMPTE 292M) over long 75Ω coax runs. IC Role / Device Role / Timing Role: Output driver with matched 75Ω source impedance and fast edge response. Use Value: Achieves <12ns settling time to 0.1%, supports >1.485Gbps data rates, and suppresses crosstalk to –65dB. |
Use Scenario: Isolating and driving the output of high-speed DACs in waveform generation equipment. IC Role / Device Role / Timing Role: Low-noise, high-slew-rate buffer between DAC and transmission line or filter network. Use Value: Maintains THD <–72dB at 1MHz and provides ±90mA peak current to charge DAC output capacitance rapidly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar open-loop buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4201EUK-T | Integrated 50Ω termination; 780MHz -3dB bandwidth; identical pinout and supply specs | Optimized for 50Ω RF test equipment and wireless baseband, not 75Ω video | Select when interfacing with SMA-connected instruments or 50Ω PCB traces |
| LMH6723MF/NOPB | Single 5-pin SOT23; 1.8GHz bandwidth; no internal termination; 3.3mA supply current | Requires external 75Ω series resistor; higher power; broader RF spectrum support | Choose for >1GHz IF stages where MAX4202EUK's 720MHz limit is insufficient |
Compared with MAX4201EUK-T and LMH6723MF/NOPB, the MAX4202EUK uniquely combines 75Ω on-die termination, 720MHz bandwidth, and sub-2.5mA quiescent current in SOT23-5-making it the only drop-in solution for legacy SD/HD video distribution without layout revision.
Availability
MAX4202EUK is available at Aetrix Electronics and suitable for video signal distribution, IF amplifier buffering, digital transmission line driving, and high-speed DAC output staging requiring stable component supply across industrial and broadcast product lifecycles.
Supply support for MAX4202EUK 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 and mixed-signal ICs for demanding performance applications including communications, industrial, and automotive systems.
The MAX4200–MAX4205 family was engineered specifically for ultra-high-speed, low-noise, open-loop buffering in video, IF, and data-communications signal chains where traditional op-amps fail due to bandwidth or stability constraints.
FAQ
What is the function of the N.C. pin on the MAX4202EUK?
The N.C. (No Connection) pin on the MAX4202EUK is not internally bonded and serves no electrical function. It must be left unconnected or tied to ground per PCB layout best practices to minimize parasitic coupling. This pin does not affect the operation of the MAX4202EUK and is present solely for mechanical compatibility with other SOT23-5 variants in the MAX4200–MAX4205 family.
Does the MAX4202EUK require external compensation for stability?
No, the MAX4202EUK does not require external compensation. Its open-loop architecture eliminates the need for dominant-pole compensation, making it inherently stable into capacitive loads up to 220pF without oscillation. The MAX4202EUK maintains stability even when driving unterminated cables or PCB traces, unlike closed-loop amplifiers that risk instability under similar conditions.
Can the MAX4202EUK operate from a single supply?
No, the MAX4202EUK is specified only for dual-supply operation from ±4V to ±5.5V. It lacks rail-to-rail input/output capability and requires symmetric supplies to maintain specified AC performance, including 720MHz bandwidth and ±90mA output drive. Attempting single-supply operation will result in clipping, reduced headroom, and failure to meet datasheet specifications for the MAX4202EUK.
How does the integrated 75Ω resistor affect signal amplitude in the MAX4202EUK?
The integrated 75Ω back-termination resistor in the MAX4202EUK forms a voltage divider with the 75Ω load, reducing the delivered signal amplitude by 6dB (i.e., half the open-circuit voltage). This is intentional for proper transmission-line matching and is accounted for in system-level gain budgeting. The MAX4202EUK's open-loop gain (~0.96V/V) is calibrated to compensate partially, ensuring accurate end-to-end signal level in 75Ω systems.
What layout guidelines are critical for achieving full bandwidth with the MAX4202EUK?
To achieve the full 720MHz bandwidth of the MAX4202EUK, use microstrip routing with controlled 75Ω impedance, place 0.1µF ceramic bypass capacitors within 2mm of VCC and VEE pins, avoid 90° trace bends, minimize input/output trace length, and use a solid ground plane. Do not use wire-wrap or IC sockets-these introduce inductance and capacitance that degrade MAX4202EUK performance above 100MHz.
MAX4202EUK 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:
- Buffer
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 4200V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 780 MHz
- Current - Input Bias:
- 800 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 2.2mA
- Current - Output / Channel:
- 44 mA
- Voltage - Supply Span (Min):
- 8 V
- Voltage - Supply Span (Max):
- 11 V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX4202EUK FAQ
1.How can I place an order for MAX4202EUK through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4202EUK 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 MAX4202EUK reliable?
The price and inventory of MAX4202EUK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4202EUK is usually 5 days.
3.What payment methods are accepted for MAX4202EUK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4202EUK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4202EUK?
MAX4202EUK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4202EUK 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 MAX4202EUK?
For technical support, including MAX4202EUK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4202EUK requirements.
6.How does Aetrix verify that MAX4202EUK is sourced from the original manufacturer or authorized distributors?
All MAX4202EUK 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 MAX4202EUK meets industry standards.
7.What is the process for return or replacement of MAX4202EUK?
All MAX4202EUK units undergo pre-shipment inspection (PSI). If there is an issue with MAX4202EUK, 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 MAX4202EUK part is unused and in its original packaging.
Return procedure for MAX4202EUK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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