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Analog Devices Inc./Maxim Integrated MAX4412EXK
- Part No.:
- MAX4412EXK
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX4412EXK.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:7,065
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Product details
Overview
The MAX4412EXK from Maxim Integrated is a single, unity-gain-stable, rail-to-rail output operational amplifier optimized for low-power, high-speed portable applications. It operates from a single +2.7V to +5.5V supply, delivers 500MHz -3dB bandwidth and 140V/µs slew rate, consumes only 1.7mA supply current per amplifier, and features input common-mode range extending 100mV below ground - making it suitable for video line driving in battery-powered instrumentation.
For engineers reviewing the MAX4412EXK datasheet, MAX4412EXK pinout, MAX4412EXK application, or MAX4412EXK equivalent, key selection criteria include its ultra-small SC70-5 package, rail-to-rail output swing (within 105mV of rails at 1kΩ), low differential gain/phase error (0.01%/0.03°), and verified capacitive load drive capability up to 120pF with isolation resistor.
Technical Context
The MAX4412EXK employs a voltage-feedback architecture with internal unity-gain compensation and demand-driven output stage biasing. Its bipolar process enables high slew rate and wide bandwidth while maintaining low distortion - critical for baseband and video signal conditioning where harmonic integrity must be preserved at 5MHz (–93dBc SFDR, 0.003% THD).
It supports ground-sensing inputs (common-mode down to VEE – 0.1V) and rail-to-rail outputs, enabling full dynamic range utilization in single-supply +3V/+5V systems. Stability is maintained with reactive loads only when an external isolation resistor (e.g., 22Ω) is used - no internal compensation for direct capacitive loading.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +5.5V - compatible with Li-ion and regulated 3.3V/5V rails without level-shifting. |
| Small-Signal Bandwidth | 500MHz -3dB - supports high-fidelity amplification of fast video edges and RF IF signals. |
| Slew Rate | 140V/µs - ensures minimal distortion on 2V-step transients (14ns rise time) in video line drivers. |
| Supply Current | 1.7mA per amplifier - enables multi-channel portable designs with tight thermal and battery-life constraints. |
| Input Common-Mode Range | VEE – 0.1V to VCC – 1.5V - allows direct sensing of signals near ground in single-supply systems. |
| Output Voltage Swing | Within 105mV of either rail (RL = 1kΩ) - maximizes usable signal swing in +5V systems (4.6VPP). |
| Differential Gain/Phase | 0.01% / 0.03° (NTSC, RL = 150Ω) - meets broadcast-grade video fidelity requirements. |
Pinout & Package
The MAX4412EXK is housed in a 5-pin SC70 package (package code X5-1), measuring 2.0mm × 1.25mm × 0.9mm, with moisture sensitivity level (MSL) 1 and lead-free finish.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Rail-to-rail output terminal - drives 150Ω video loads or ADC input capacitance with low output impedance (<0.7Ω at 1MHz). |
| 2 | VEE | Negative power supply (typically ground) - reference for input common-mode and output swing. |
| 3 | IN+ | Noninverting input - accepts signals down to VEE – 0.1V; high-impedance (16MΩ) with 1.8pF input capacitance. |
| 4 | IN− | Inverting input - used for feedback configuration; matched to IN+ for precision closed-loop gain. |
| 5 | VCC | Positive power supply - bypass with 0.1µF ceramic capacitor placed adjacent to pin for high-frequency PSRR stability. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output stage | Delivers >95% of full supply voltage swing at 1kΩ, preserving SNR in low-voltage video and instrumentation interfaces. |
| Ultra-low 1.7mA quiescent current | Enables integration into always-on sensor front-ends and battery-operated handheld test equipment without thermal derating. |
| 50MHz 0.1dB gain flatness | Ensures amplitude consistency across NTSC/PAL video bandwidth (4.2–5.5MHz) without post-filtering. |
| Low distortion at 5MHz | –93dBc SFDR and 0.003% THD support high-resolution ADC buffering and composite video transmission. |
| Capacitive load drive | Stable with up to 120pF load when isolated by ≥22Ω series resistor - simplifies coaxial cable driver design. |
Applications
| Video Line Driver | ADC Input Buffer |
|---|---|
Use Scenario: Driving 75Ω coaxial video lines in portable medical imaging or security camera modules. IC Role / Device Role / Timing Role: High-fidelity voltage buffer with minimal group delay and phase nonlinearity. Use Value: 0.01% differential gain error preserves luminance/chrominance separation in NTSC signals. | Use Scenario: Conditioning analog inputs to 10-bit+ SAR or pipeline ADCs sampling at ≥20MSPS. IC Role / Device Role / Timing Role: Low-output-impedance charge reservoir that settles within 100ns to 0.1%. Use Value: 140V/µs slew rate and <0.7Ω output impedance ensure accurate sampling of fast transient signals. |
| Battery-Powered Instrumentation | Portable Communications Baseband |
Use Scenario: Signal conditioning in handheld multimeters or oscilloscope front-ends powered by two AA cells. IC Role / Device Role / Timing Role: Single-supply amplifier supporting rail-to-rail input/output with low offset drift. Use Value: 3μV/°C input offset drift and 1.7mA supply current extend battery life while maintaining DC accuracy. | Use Scenario: IF amplification and filtering in Bluetooth/Wi-Fi transceiver baseband chains. IC Role / Device Role / Timing Role: Low-noise, high-bandwidth gain block before quadrature demodulation. Use Value: 13nV/√Hz input voltage noise and 500MHz bandwidth support clean 20MHz channel filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-power op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4412EUK-T | Identical electrical specs; packaged in 5-pin SOT23 (U5-2) instead of SC70-5 - 2.9mm × 1.6mm footprint vs. 2.0mm × 1.25mm. | Preferred where board assembly uses standard SOT23 pick-and-place tooling or requires higher power dissipation margin (571mW vs. 247mW). | Select MAX4412EUK-T when PCB layout prioritizes thermal robustness over minimal area. |
| ADA4891-1ARJZ-R7 | Lower bandwidth (225MHz), higher supply current (6.5mA), but superior input offset voltage (0.5mV max vs. 9mV max) and rail-to-rail input capability. | Better suited for precision DC-coupled sensor interfaces where speed is secondary to offset and CMRR. | Choose ADA4891-1ARJZ-R7 only when input rail-to-rail operation and sub-mV offset outweigh bandwidth and current requirements. |
Compared with MAX4412EUK-T, the MAX4412EXK saves 37% board area but reduces thermal headroom; compared with ADA4891-1ARJZ-R7, it trades 2.5× higher bandwidth and 3.8× lower supply current for relaxed DC precision - making it optimal for AC-coupled, speed-critical video and communications paths.
Availability
MAX4412EXK is available at Aetrix Electronics and suitable for video line drivers, portable instrumentation front-ends, and high-speed ADC buffer circuits requiring stable component supply across extended temperature ranges (–40°C to +85°C).
Supply support for MAX4412EXK 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 MAX4412EXK belongs to Maxim's high-speed, low-power op amp family targeting portable video, instrumentation, and baseband signal chains - engineered for unity-gain stability, rail-to-rail operation, and minimal distortion in space-constrained +3V/+5V systems.
FAQ
What is the maximum capacitive load the MAX4412EXK can drive without oscillation?
The MAX4412EXK is not internally compensated for direct capacitive loading and will oscillate if driven into >10pF without isolation. With a 22Ω series isolation resistor, it remains stable driving up to 120pF - verified in Typical Operating Characteristics Figure MAX4412 toc04. For coaxial cables or PCB traces, proper termination at both ends eliminates reactive loading effects. Always verify stability under actual load conditions using small-signal pulse response testing.
Does the MAX4412EXK support rail-to-rail input operation?
No, the MAX4412EXK does not support rail-to-rail input. Its input common-mode voltage range extends from VEE – 0.1V to VCC – 1.5V - meaning it senses down to 100mV below ground but cannot accept signals within 1.5V of the positive rail. This limitation is intentional to preserve high CMRR and low distortion. For true rail-to-rail input, consider alternatives like the ADA4891-1, but note trade-offs in bandwidth and supply current.
What is the recommended power supply bypassing for the MAX4412EXK?
Maxim specifies a 0.1µF ceramic capacitor placed as close as possible to the VCC pin (Pin 5) and grounded to minimize high-frequency supply impedance. No additional bulk capacitance is required due to the device's low 1.7mA supply current and internal PSRR optimization (77dB typical at DC, >60dB up to 100MHz). Avoid long traces between capacitor and pin - parasitic inductance degrades effectiveness above 10MHz.
Can the MAX4412EXK be used in a unity-gain inverting configuration?
Yes, the MAX4412EXK is unity-gain stable in both inverting and noninverting configurations. For unity-gain inverting use, a 24Ω feedback resistor (RF) is recommended to optimize AC response by damping parasitic LC resonance - as specified in the Applications Information section. Ensure input and feedback resistors are ≤1kΩ to avoid bandwidth degradation from interaction with 1.8pF input capacitance and PCB stray capacitance.
What is the guaranteed operating temperature range for the MAX4412EXK?
The MAX4412EXK is specified and production-tested over the industrial temperature range of –40°C to +85°C. All DC and AC electrical characteristics - including supply current (1.5–3.5mA), input offset voltage (0.4–9mV), and bandwidth (500MHz typ.) - are guaranteed across this full range. Thermal performance data (e.g., supply current vs. temperature in Figure MAX4412 toc31) confirms monotonic behavior with no anomalies at extremes.
MAX4412EXK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 220V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 500 MHz
- Current - Input Bias:
- 1.6 µA
- Voltage - Input Offset:
- 400 µV
- Current - Supply:
- 1.7mA
- Current - Output / Channel:
- 75 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
MAX4412EXK FAQ
1.How can I place an order for MAX4412EXK through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4412EXK 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 MAX4412EXK reliable?
The price and inventory of MAX4412EXK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4412EXK is usually 5 days.
3.What payment methods are accepted for MAX4412EXK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4412EXK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4412EXK?
MAX4412EXK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4412EXK 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 MAX4412EXK?
For technical support, including MAX4412EXK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4412EXK requirements.
6.How does Aetrix verify that MAX4412EXK is sourced from the original manufacturer or authorized distributors?
All MAX4412EXK 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 MAX4412EXK meets industry standards.
7.What is the process for return or replacement of MAX4412EXK?
All MAX4412EXK units undergo pre-shipment inspection (PSI). If there is an issue with MAX4412EXK, 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 MAX4412EXK part is unused and in its original packaging.
Return procedure for MAX4412EXK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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