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Analog Devices Inc./Maxim Integrated MAX4214EUK
- Part No.:
- MAX4214EUK
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4214EUK.pdf
- Description:
- CLOSED-LOOP, R-R BUFFER
- Quantity:
- Payment:
- Shipping:
Inventory:1,040
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Product details
Overview
The MAX4214EUK from Maxim Integrated is a precision, single-channel, closed-loop +2V/V or −1V/V rail-to-rail output buffer IC optimized for high-speed video and instrumentation signal conditioning. It delivers 230MHz −3dB bandwidth, 600V/µs slew rate, ±120mA output drive, and 0.03%/0.04° differential gain/phase error while consuming only 5.5mA quiescent current. It operates from a single 3.15V–11V supply and is widely used in battery-powered video line drivers and ADC interface circuits.
For engineers reviewing the MAX4214EUK datasheet, MAX4214EUK pinout, MAX4214EUK application, or MAX4214EUK equivalent, key selection criteria include its SOT23-5 package footprint, rail-to-rail output swing with input common-mode range extending 100mV beyond VEE, low 10nV/√Hz voltage noise, and verified performance in NTSC video routing and CCD imaging systems.
Technical Context
The MAX4214EUK employs voltage-feedback architecture enhanced with current-feedback techniques to achieve high slew rate and wide bandwidth without sacrificing DC precision. Its internal 500Ω precision resistors fix closed-loop gain at +2V/V (noninverting) or −1V/V (inverting), eliminating external gain-setting components and reducing layout sensitivity.
Local feedback around the output stage ensures low output impedance (<200mΩ at 10MHz) and demand-driven biasing for ±120mA drive capability. Input protection includes back-to-back Schottky diodes between IN+ and IN−, enabling robust operation under large differential input voltages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 230MHz −3dB - supports full NTSC/PAL video bandwidth and high-speed data acquisition sampling clocks. |
| Slew Rate | 600V/µs - enables clean 2VP-P pulse response with <1ns rise/fall times into 100Ω loads. |
| Output Drive | ±120mA - drives 50Ω/75Ω coaxial cables directly without external buffers or termination adjustments. |
| Supply Current | 5.5mA typical - enables low-power portable instrumentation and battery-operated video gear. |
| Input Noise | 10nV/√Hz voltage noise, 1.3pA/√Hz current noise - preserves SNR in high-gain analog front-ends and CCD readout paths. |
| Differential Error | 0.03% gain error, 0.04° phase error - meets broadcast-grade video fidelity requirements per NTSC standard. |
| Input Range | VEE − 100mV to VCC − 2.25V - supports ground-sensing inputs in single-supply 3.3V/5V systems. |
| Output Swing | Rail-to-rail into 2kΩ; >4VP-P into 150Ω at 5V supply - maximizes dynamic range in ADC driver applications. |
Pinout & Package
MAX4214EUK is housed in a 5-pin SOT23-5 package (JEDEC MO-178AA), measuring 2.9mm × 1.6mm × 1.1mm, with gull-wing leads and exposed pad not present. Pin 1 is marked with a dot or beveled edge.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VEE) | Negative power supply / ground reference | Connect to system ground in single-supply operation; extends input common-mode range 100mV below this rail. |
| 2 (IN−) | Inverting input terminal | 500Ω internal resistor to ground; configure for −1V/V gain or terminate with 56Ω (50Ω systems) or 88Ω (75Ω systems). |
| 3 (IN+) | Noninverting input terminal | High-impedance input (≥3MΩ); use as signal input for +2V/V configuration when IN− is grounded. |
| 4 (VCC) | Positive power supply | Accepts 3.15V–11V single supply; bypass with 0.1µF ceramic capacitor placed adjacent to pin. |
| 5 (OUT) | Amplifier output | Rail-to-rail capable; drives capacitive loads up to 20pF directly; requires isolation resistor (>27Ω) for >20pF loads. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed closed-loop gain | Internal 500Ω resistors set precise +2V/V or −1V/V gain-eliminates external resistor matching errors and board space. |
| Rail-to-rail output | Swings within 60mV of VCC/VEE into 2kΩ-maximizes usable dynamic range in low-voltage 3.3V systems. |
| Low distortion at 5MHz | −72dBc SFDR and −71dB THD-enables high-fidelity signal chain integrity in CCD imaging and RF IF stages. |
| High-speed settling | 45ns settling time to 0.1% for 2V step-supports multi-MSPS data acquisition and fast video switching. |
| Input overvoltage protection | Back-to-back Schottky diodes between IN+ and IN−-prevents latch-up and damage during hot-plug or cable fault events. |
| Small-footprint packaging | SOT23-5 footprint (2.9mm × 1.6mm)-ideal for space-constrained portable instruments and HD video modules. |
Applications
| Battery-Powered Instruments | Video Line Drivers |
|---|---|
Use Scenario: Portable oscilloscope front-end amplifiers and handheld spectrum analyzers requiring low power and wide bandwidth. IC Role / Device Role / Timing Role: Precision buffer isolating high-impedance sensor signals before ADC sampling, preserving amplitude and phase fidelity. Use Value: 5.5mA supply current extends battery life; 0.03%/0.04° differential error ensures accurate waveform reconstruction in field-deployable test gear. | Use Scenario: Driving 75Ω coaxial video cables in security camera DVRs and broadcast switchers. IC Role / Device Role / Timing Role: Gain-of-2 video driver delivering NTSC/PAL-compliant signal levels with minimal group delay variation. Use Value: ±120mA output drive eliminates need for external emitter followers; rail-to-rail swing maintains >1VP-P headroom at 3.3V supply. |
| Analog-to-Digital Converter Interface | CCD Imaging Systems |
Use Scenario: Buffering high-speed sensor outputs (e.g., CMOS image sensors) into pipeline or sigma-delta ADCs. IC Role / Device Role / Timing Role: Low-noise, low-distortion driver ensuring full ENOB utilization of 12–14-bit ADCs operating at ≥10MSPS. Use Value: 10nV/√Hz input noise prevents degradation of SNR; 230MHz bandwidth supports >5MHz baseband signal capture. | Use Scenario: Output amplification stage in scientific CCD cameras for astronomy or medical imaging. IC Role / Device Role / Timing Role: Low-phase-error buffer driving multiplexed CCD output lines to correlated double sampling (CDS) circuitry. Use Value: 0.04° differential phase error prevents chrominance timing skew across pixel rows; low 1.3pA/√Hz current noise minimizes dark current artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS3201DR | Higher 1.8GHz bandwidth but 15mA supply current; no internal gain resistors; requires external feedback network. | Used in RF IF amplification where bandwidth >1GHz is critical; unsuitable for space-constrained video routing due to SOIC-8 footprint and higher power. | Select THS3201DR only when >1GHz small-signal bandwidth is required and board area/power budget allow. |
| LMH6702MF | 220MHz bandwidth, 1100V/µs slew rate, 12.5mA supply current; rail-to-rail input/output; no internal gain resistors. | Favored in high-fidelity audio line drivers and wideband test equipment; lacks integrated gain-setting, increasing BOM count and layout complexity. | Choose LMH6702MF when ultra-high slew rate is prioritized over quiescent power and component count reduction. |
Compared with THS3201DR and LMH6702MF, the MAX4214EUK offers the lowest power (5.5mA), smallest footprint (SOT23-5), and highest level of integration (internal +2/−1 gain resistors), making it optimal for cost-sensitive, space-limited, battery-powered video and instrumentation designs where 230MHz bandwidth suffices.
Availability
MAX4214EUK is available at Aetrix Electronics and suitable for video line drivers, battery-powered instruments, and analog-to-digital converter interface applications requiring stable component supply, long-term production continuity, and guaranteed RoHS-compliant sourcing.
Supply support for MAX4214EUK 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer markets.
The MAX4214EUK belongs to Maxim's high-speed precision buffer product line, designed specifically for low-voltage, low-power video signal conditioning, CCD/CMOS sensor interfacing, and wideband instrumentation where rail-to-rail operation and minimal external components are critical.
FAQ
What is the operating supply voltage range for the MAX4214EUK?
The MAX4214EUK operates from a single 3.15V to 11V supply or dual ±1.575V to ±5.5V supplies. In single-supply mode, VEE is tied to ground, and VCC accepts 3.15V–11V. The device is fully specified across this range, with performance including 230MHz bandwidth and 600V/µs slew rate validated at 5V and 3.3V. Internal biasing remains stable across the full range, enabling flexible use in both 3.3V portable and 5V/9V industrial systems.
Does the MAX4214EUK have an enable/disable function?
No, the MAX4214EUK does not include an enable/disable feature. That functionality is exclusive to the MAX4215 and MAX4219 variants in the same family. The MAX4214EUK draws a fixed 5.5mA quiescent current per buffer and cannot be placed into a low-power shutdown state. If power gating is required, designers must use external supply switching or select the pin-compatible MAX4215EUA instead, which offers 400µA shutdown current via its EN_ pin.
What is the maximum capacitive load the MAX4214EUK can drive without instability?
The MAX4214EUK is stable driving up to 20pF of capacitive load without external compensation. Beyond 20pF, oscillation risk increases due to added phase lag. For loads >20pF (e.g., long PCB traces or unterminated cables), a series isolation resistor (e.g., 27Ω for 47–68pF) between OUT and the load restores stability and flattens frequency response, as documented in Figure 9 of the datasheet. This resistor value scales with load capacitance per the curve in Figure 8.
Can the MAX4214EUK be used in inverting configuration, and what is required?
Yes, the MAX4214EUK supports inverting configuration with a fixed −1V/V gain using its internal 500Ω resistors. To implement this, connect the signal source to the IN− pin and ground the IN+ pin. Because IN− presents a 500Ω input impedance, proper termination is essential: use a 56Ω series resistor for 50Ω systems or 88Ω for 75Ω video systems to prevent reflections and maintain gain accuracy. The output must also be terminated to match the load impedance.
What is the input common-mode voltage range of the MAX4214EUK?
The input common-mode voltage range of the MAX4214EUK extends from VEE − 100mV to VCC − 2.25V. In single-supply operation (VEE = 0V), this means the inputs accept signals from −100mV to VCC − 2.25V - enabling true ground-sensing capability and supporting input signals that go slightly below ground. This extended range improves dynamic headroom in low-voltage systems and simplifies level-shifting requirements in mixed-signal interfaces.
MAX4214EUK 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, Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 600V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 230 MHz
- Current - Input Bias:
- 5.4 µA
- Voltage - Input Offset:
- 4 mV
- Current - Supply:
- 5.5mA
- Current - Output / Channel:
- 120 mA
- Voltage - Supply Span (Min):
- 3.15 V
- Voltage - Supply Span (Max):
- 11 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX4214EUK FAQ
1.How can I place an order for MAX4214EUK through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4214EUK 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 MAX4214EUK reliable?
The price and inventory of MAX4214EUK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4214EUK is usually 5 days.
3.What payment methods are accepted for MAX4214EUK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4214EUK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4214EUK?
MAX4214EUK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4214EUK 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 MAX4214EUK?
For technical support, including MAX4214EUK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4214EUK requirements.
6.How does Aetrix verify that MAX4214EUK is sourced from the original manufacturer or authorized distributors?
All MAX4214EUK 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 MAX4214EUK meets industry standards.
7.What is the process for return or replacement of MAX4214EUK?
All MAX4214EUK units undergo pre-shipment inspection (PSI). If there is an issue with MAX4214EUK, 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 MAX4214EUK part is unused and in its original packaging.
Return procedure for MAX4214EUK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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