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Analog Devices Inc./Maxim Integrated MAX4351EKA+T
- Part No.:
- MAX4351EKA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-8
- Datasheet:
-
MAX4351EKA+T.pdf
- Description:
- IC OPAMP VFB 2 CIRCUIT SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX4351EKA+T from Maxim Integrated is a dual, unity-gain-stable, rail-to-rail output operational amplifier optimized for high-speed video and instrumentation signal conditioning. It operates from ±5V dual supplies, delivers 210MHz -3dB bandwidth, 485V/µs slew rate, and achieves 0.02% differential gain / 0.08° differential phase error into 150Ω loads - making it suitable for NTSC-compliant video line driving and ADC interface buffering.
For engineers reviewing the MAX4351EKA+T datasheet, MAX4351EKA+T pinout, MAX4351EKA+T application, or MAX4351EKA+T equivalent, key selection criteria include its 8-pin SOT23 package, dual-channel isolation (102dB), low 6.9mA per amplifier quiescent current, and guaranteed performance across –40°C to +85°C industrial temperature range.
Technical Context
The MAX4351EKA+T employs voltage-feedback architecture enhanced with current-feedback techniques to achieve wide bandwidth and fast settling (16ns to 0.1%). Its input stage supports common-mode voltages down to VEE and up to VCC – 2.25V, while the rail-to-rail output stage swings within 125mV of both supply rails under 2kΩ load.
It features internal unity-gain compensation and is optimized for AC-coupled video applications using a 24Ω feedback resistor (RF). Channel-to-channel isolation exceeds 102dB at DC, and output impedance remains below 1.5Ω at 10MHz - critical for driving 75Ω or 150Ω transmission lines without external termination.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 210MHz small-signal - enables full HD video bandwidth support (up to ~1080p60 baseband) |
| Slew Rate | 485V/µs - ensures distortion-free reproduction of fast video transients and composite sync edges |
| Differential Gain/Phase | 0.02% / 0.08° @ NTSC, RL = 150Ω - meets broadcast-grade video fidelity requirements |
| Quiescent Current | 6.9mA per amplifier - allows dual-channel operation in power-constrained video front-ends |
| Input Common-Mode Range | VEE to (VCC – 2.25V) - supports ground-referenced inputs in dual-supply systems |
| Output Voltage Swing | Within 125mV of rails @ 2kΩ - maintains >95% dynamic range in ±5V systems |
| Channel Isolation | 102dB @ DC - prevents crosstalk between dual video channels in routing/switching systems |
Pinout & Package
MAX4351EKA+T is housed in an 8-pin SOT23 package (JEDEC MO-178 compliant), measuring 2.80mm × 2.90mm × 1.30mm, with gull-wing leads and pin 1 marked by a dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUTA | Amplifier A Output | Low-impedance rail-to-rail output capable of sourcing/sinking 80mA (sourcing) / 75mA (sinking) into 50Ω |
| 2 - IN- | Inverting Input | Differential input node; 70kΩ differential input resistance, 3MΩ common-mode resistance |
| 3 - IN+ | Noninverting Input | High-impedance input referenced to VEE; common-mode range extends to negative rail |
| 4 - VEE | Negative Power Supply | Connect to –5V (or ground in single-supply mode); supports input down to VEE |
| 5 - VCC | Positive Power Supply | Connect to +5V; input common-mode upper limit is VCC – 2.25V |
| 6 - INB– | Amplifier B Inverting Input | Independent second channel input; matched offset voltage ≤1mV vs. INB+ |
| 7 - INB+ | Amplifier B Noninverting Input | Second channel positive input; identical electrical specs to IN+ |
| 8 - OUTB | Amplifier B Output | Fully independent output; 102dB isolation from OUTA at DC ensures minimal inter-channel coupling |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers >95% of full ±5V supply range into 2kΩ, preserving signal headroom in analog video paths |
| Ultra-low distortion at 5MHz | –65dBc SFDR and –63dB THD enable clean digitization of composite video signals before ADC sampling |
| Optimized for 75Ω/150Ω video loads | Output impedance <1.5Ω @ 10MHz and 0.02%/0.08° DG/DP ensure minimal NTSC/PAL signal degradation |
| Internal unity-gain compensation | Eliminates need for external compensation components in buffer/gain = 1 configurations |
| Low 6.9mA per amplifier supply current | Enables dual-channel high-speed amplification in thermally constrained set-top box or camera modules |
Applications
| Surveillance Video Systems | Video Line Drivers |
|---|---|
Use Scenario: Driving analog CVBS signals over coaxial cable from camera sensor to DVR processing unit. IC Role / Device Role / Timing Role: Dual-channel video buffer and driver, one channel for luminance (Y), one for chrominance (C) in composite video. Use Value: 0.02% differential gain error preserves color saturation; 102dB channel isolation prevents Y/C crosstalk in multi-camera matrix switchers. |
Use Scenario: Amplifying and impedance-matching RGB or YPbPr component video signals on PCB traces before connector output. IC Role / Device Role / Timing Role: Unity-gain line driver with 75Ω source termination capability and rail-to-rail swing. Use Value: 210MHz bandwidth supports 1080p60 timing; 485V/µs slew rate prevents edge ringing on fast pixel transitions. |
| Analog-to-Digital Converter Interface | Video Routing and Switching Systems |
Use Scenario: Buffering analog video prior to sampling by high-speed ADCs in medical imaging or test equipment. IC Role / Device Role / Timing Role: Low-noise, low-distortion driver ensuring signal integrity during acquisition window. Use Value: –65dBc SFDR at 5MHz exceeds typical 10-bit ADC spurious requirements; 10nV/√Hz input noise avoids SNR degradation. |
Use Scenario: Selecting and distributing multiple video sources to displays in broadcast control rooms or AV distribution hubs. IC Role / Device Role / Timing Role: Dual-channel switch buffer with independent enable/control per channel. Use Value: Independent amplifiers allow simultaneous active routing of two video streams; 16ns settling time supports rapid switching without ghosting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed dual op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6702MA/NOPB | Wider 1.8GHz bandwidth but higher 11.5mA supply current; requires external compensation; no rail-to-rail output | Better suited for RF IF amplification than video line driving due to limited output swing (±3.5V @ ±5V) | Choose LMH6702MA/NOPB only when >1GHz small-signal bandwidth is required and rail-to-rail output is unnecessary. |
| ADA4891-2ARZ | Lower 225MHz bandwidth, 125V/µs slew rate, rail-to-rail I/O, 4.4mA per amp; specified for 3V–5.5V single supply only | Designed for portable battery-powered video systems; lacks dual-supply flexibility and NTSC-optimized DG/DP specs | Choose ADA4891-2ARZ for cost-sensitive, single-supply embedded vision applications where 210MHz bandwidth is not mandatory. |
Compared with LMH6702MA/NOPB and ADA4891-2ARZ, MAX4351EKA+T uniquely balances 210MHz bandwidth, rail-to-rail output, ±5V dual-supply operation, and broadcast-grade video fidelity - making it the only option qualified for NTSC-compliant analog video line driving in industrial temperature range.
Availability
MAX4351EKA+T is available at Aetrix Electronics and suitable for surveillance video systems, analog-to-digital converter interfaces, and video routing and switching systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4351EKA+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 high-speed ICs for industrial, communications, and consumer applications.
The MAX4350/MAX4351 product line targets high-fidelity analog video signal conditioning - specifically engineered for NTSC/PAL-compliant line drivers, CCD/CMOS sensor interfaces, and high-speed data acquisition front-ends.
FAQ
What supply voltages does the MAX4351EKA+T support?
The MAX4351EKA+T operates from dual ±4.5V to ±5.5V supplies, with typical use at ±5V. It is not rated for single-supply operation above 5.5V total span; VCC and VEE must be symmetrically biased relative to system ground to maintain specified AC performance and input common-mode range.
Does the MAX4351EKA+T require external compensation capacitors?
No, the MAX4351EKA+T is internally compensated for unity-gain stability. External compensation is unnecessary in standard noninverting or inverting gain configurations. The datasheet recommends a 24Ω series feedback resistor (RF) for optimal AC response in unity-gain line driver applications.
Can the MAX4351EKA+T drive 75Ω coaxial cable directly?
Yes - the MAX4351EKA+T can drive 75Ω loads with minimal distortion. Its low 1.5Ω output impedance at 10MHz and 0.02%/0.08° differential gain/phase error meet broadcast video standards. For best results, use series 24Ω termination at the amplifier output and parallel 75Ω termination at the load end.
What is the maximum capacitive load the MAX4351EKA+T can drive stably?
The MAX4351EKA+T is not optimized for direct capacitive loading. Stability degrades beyond ~10pF without isolation. To drive larger capacitive loads (e.g., PCB traces, connectors), a 20Ω–30Ω series isolation resistor must be placed between the output and capacitance - verified to maintain stability up to 120pF with 27Ω RISO.
Is the MAX4351EKA+T pin-compatible with other dual op amps in SOT23-8?
No - the MAX4351EKA+T uses a proprietary pinout (OUTA, IN–, IN+, VEE, VCC, INB–, INB+, OUTB) that differs from industry-standard dual op amp configurations like the LMV358 or AD8602. PCB layout must follow Maxim's recommended SOT23-8 footprint and thermal pad guidelines.
MAX4351EKA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 485V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 210 MHz
- Current - Input Bias:
- 7.5 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 6.9mA (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:
- SOT-23-8
MAX4351EKA+T FAQ
1.How can I place an order for MAX4351EKA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4351EKA+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 MAX4351EKA+T reliable?
The price and inventory of MAX4351EKA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4351EKA+T is usually 5 days.
3.What payment methods are accepted for MAX4351EKA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4351EKA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4351EKA+T?
MAX4351EKA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4351EKA+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 MAX4351EKA+T?
For technical support, including MAX4351EKA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4351EKA+T requirements.
6.How does Aetrix verify that MAX4351EKA+T is sourced from the original manufacturer or authorized distributors?
All MAX4351EKA+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 MAX4351EKA+T meets industry standards.
7.What is the process for return or replacement of MAX4351EKA+T?
All MAX4351EKA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4351EKA+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 MAX4351EKA+T part is unused and in its original packaging.
Return procedure for MAX4351EKA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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