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Analog Devices Inc./Maxim Integrated MAX4430EUK
- Part No.:
- MAX4430EUK
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4430EUK.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:970
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Product details
Overview
The MAX4430EUK from Maxim Integrated is a single, dual-supply, unity-gain-stable voltage-feedback operational amplifier optimized for high-speed 16-bit ADC preamplification. It delivers 180MHz small-signal -3dB bandwidth, 37ns 16-bit (0.0015%) settling time, and 2.8nV/√Hz input voltage noise density, enabling precise signal conditioning in ±5V systems driving ≥4Vp-p ADC inputs.
For engineers reviewing the MAX4430EUK datasheet, MAX4430EUK pinout, MAX4430EUK application, or MAX4430EUK equivalent, key selection criteria include unity-gain stability, 11mA quiescent current per amplifier, 60mA output drive capability, and SOT23-5 package compatibility with space-constrained high-resolution data acquisition layouts.
Technical Context
The MAX4430EUK employs a voltage-feedback architecture with internal unity-gain compensation, distinguishing it from current-feedback amplifiers while meeting demanding dynamic performance requirements. Its 125dB typical open-loop gain and 100dB SFDR at 1MHz support accurate DC-coupled gain stages and low-distortion AC signal paths.
Designed for capacitive-load resilience in ADC driver roles, the device maintains stability with up to 47pF load capacitance and features fast overload recovery (95ns) and minimal output glitch settling (24ns to 16-bit). Input common-mode range extends from VEE + 2.5V to VCC – 0.9V, supporting rail-to-rail output swing of ±2.6V on ±5V supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal -3dB BW | 180MHz - Enables full-power bandwidth for signals up to Nyquist frequency of 90MSPS ADCs |
| 16-bit settling time | 37ns - Guarantees accurate sampling of fast transients in 14-/16-bit SAR and pipeline ADCs |
| Input voltage noise | 2.8nV/√Hz - Limits integrated noise to ~1.2µVRMS over 10MHz bandwidth, preserving ENOB |
| Open-loop gain | 125dB (min 110dB) - Ensures <0.001% gain error in precision closed-loop configurations |
| Output drive current | ±60mA - Drives low-impedance ADC input networks and 50Ω transmission lines directly |
| Supply current | 11mA per amplifier - Supports multi-channel systems without excessive thermal load or power budget impact |
| Input offset voltage | ±5mV max - Maintains DC accuracy in sensor interface and instrumentation front-ends |
Pinout & Package
MAX4430EUK is housed in a 5-pin SOT23-5 package with exposed pad (not electrically connected), optimized for high-density PCB layouts and thermal dissipation in compact analog signal chains.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Amplifier output terminal; capable of ±2.6V swing into 500Ω load on ±5V supplies |
| 2 | VEE | Negative supply pin; must be decoupled with 0.1µF ceramic capacitor placed adjacent to pin |
| 3 | IN+ | Noninverting input; high-impedance node (1MΩ common-mode, 12kΩ differential) requiring matched trace routing |
| 4 | IN- | Inverting input; used for feedback network connection; sensitive to parasitic capacitance affecting phase margin |
| 5 | VCC | Positive supply pin; requires local 0.1µF ceramic bypass to ground for stable high-frequency operation |
Key Features
| Feature | Design Value |
|---|---|
| 16-bit accurate settling in 37ns | Enables direct interface to 14-/16-bit ADCs without additional settling-time margin or external buffering |
| 100dB SFDR at 1MHz, 4Vp-p | Preserves spurious-free resolution in IF/RF sampling applications where harmonic distortion degrades SNR |
| 2.8nV/√Hz input voltage noise | Minimizes contribution to system noise floor in low-level sensor and precision instrumentation signal chains |
| 60mA high output drive | Eliminates need for external buffer when driving ADC input RC networks or 50Ω coaxial traces |
| Unity-gain stable design | Permits use in gain-of-1 configurations (e.g., active filters, level shifters) without external compensation components |
Applications
| High-Speed ADC Preamplifier | Low-Noise Instrumentation Front-End |
|---|---|
Use Scenario: Driving the input of a 16-bit, 100MSPS pipeline ADC in a medical imaging data acquisition system. IC Role / Device Role / Timing Role: High-fidelity voltage buffer and gain stage ensuring sub-LSB settling before sample-and-hold activation. Use Value: 37ns 16-bit settling guarantees full accuracy at maximum conversion rate; 2.8nV/√Hz noise prevents degradation of effective number of bits (ENOB). |
Use Scenario: Amplifying microvolt-level thermocouple outputs in a calibrated industrial temperature controller. IC Role / Device Role / Timing Role: Low-drift, low-noise noninverting amplifier with DC-coupled gain of 100V/V preceding a precision ΣΔ ADC. Use Value: ±5mV max input offset and 7µV/°C TCVOS enable <±0.5°C system accuracy over -40°C to +85°C; 125dB open-loop gain ensures stable gain calibration. |
| IF Amplifier in Communications Receiver | Low-Distortion Active Filter Stage |
Use Scenario: Buffering and amplifying 70MHz IF signals in a software-defined radio (SDR) receiver before digitization. IC Role / Device Role / Timing Role: Wideband gain block maintaining amplitude and phase integrity across 10–100MHz band. Use Value: 180MHz bandwidth and 100dB SFDR at 1MHz ensure minimal intermodulation distortion in multi-tone environments; 145V/µs slew rate supports large-signal fidelity. |
Use Scenario: Implementing a 4th-order Butterworth anti-aliasing filter with 20MHz cutoff in a test equipment signal generator. IC Role / Device Role / Timing Role: Unity-gain stable op amp configured as dual-stage Sallen-Key topology with precise component matching. Use Value: Unity-gain compensation eliminates external compensation; 2.8nV/√Hz noise and low THD preserve spectral purity below -100dBc at 1MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-noise op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8001ARZ | Higher 800MHz bandwidth but only 70dB SFDR at 1MHz; 4.5nV/√Hz noise; requires minimum gain of +2 | Better suited for >200MSPS ADC drivers where speed dominates distortion/noise trade-offs | Select AD8001ARZ only when >500MHz small-signal bandwidth is required and 16-bit settling time is less critical than raw speed |
| LMH6629MA/NOPB | Lower 1.5nV/√Hz noise but 150MHz bandwidth; 110dB open-loop gain; unity-gain stable; 10mA supply current | Preferred for ultra-low-noise, moderate-bandwidth applications like photodiode transimpedance stages | Choose LMH6629MA/NOPB when input-referred noise is the dominant specification and 180MHz bandwidth is excessive |
Compared with AD8001ARZ and LMH6629MA/NOPB, the MAX4430EUK uniquely balances 180MHz bandwidth, 37ns 16-bit settling, and 2.8nV/√Hz noise within a 11mA power envelope - making it optimal for 14-/16-bit ADC interfaces where all three parameters are simultaneously constrained.
Availability
MAX4430EUK is available at Aetrix Electronics and suitable for high-speed data acquisition, precision instrumentation, and communications receiver designs requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for MAX4430EUK 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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing applications.
The MAX4430–MAX4433 family was designed specifically to address the signal-chain challenges of modern high-speed, high-resolution ADCs - delivering unity-gain stability, ultra-low distortion, and fast settling in miniature packages.
FAQ
What is the maximum capacitive load the MAX4430EUK can drive without instability?
The MAX4430EUK is specified to remain stable with up to 47pF of capacitive load at its output without sustained oscillations. For loads exceeding this value, adding a small series isolation resistor (e.g., 10–50Ω) between the output pin and the load restores phase margin while introducing negligible gain error in most ADC driver configurations. This behavior is verified in the Typical Operating Characteristics section of the MAX4430EUK datasheet.
Does the MAX4430EUK support single-supply operation?
No, the MAX4430EUK is explicitly designed for dual-supply operation with specified supply ranges of ±4.5V to ±5.5V. Its input common-mode range (VEE + 2.5V to VCC – 0.9V) and output swing (VEE + 2.6V to VCC – 0.6V) assume symmetric rails; operation on single-ended supplies violates absolute maximum ratings and compromises DC accuracy and dynamic performance. For single-supply applications, consider the MAX44260 or similar rail-to-rail input/output amplifiers.
How does the MAX4430EUK's 16-bit settling time compare to the MAX4431EUK?
The MAX4430EUK achieves 37ns 16-bit (0.0015%) settling time due to its unity-gain compensation, whereas the MAX4431EUK - compensated for minimum gain of +2 - requires 63ns under identical conditions. This 26ns difference reflects the trade-off between stability flexibility and transient response speed; the MAX4430EUK is preferred for unity-gain buffers and fast-settling gain-of-1 stages, while the MAX4431EUK offers higher bandwidth (215MHz vs. 180MHz) in gain-of-2+ configurations.
Can the MAX4430EUK drive a 50Ω transmission line directly?
Yes, the MAX4430EUK can drive a 50Ω load with ±30mA output current (±60mA peak) and maintains 4Vp-p swing into 500Ω. When terminating a 50Ω line, use series back-termination (e.g., 45Ω resistor at the amplifier output) to match impedance and suppress reflections. The device's 145V/µs slew rate and low output impedance (<0.2Ω at 1MHz) ensure clean edge fidelity without overshoot or ringing in properly terminated layouts.
What is the recommended power-supply bypassing scheme for the MAX4430EUK?
Each supply pin (VCC and VEE) of the MAX4430EUK must be bypassed to ground with a 0.1µF surface-mount ceramic capacitor placed as close as possible to the respective pin. Additionally, a 10µF tantalum capacitor should be located at the board's power entry point. Avoid shared vias or long traces between bypass caps and pins; use separate low-inductance paths to the solid ground plane. This configuration suppresses high-frequency supply noise and maintains stability up to 180MHz.
MAX4430EUK 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:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 100V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 180 MHz
- Current - Input Bias:
- 11 µA
- Voltage - Input Offset:
- 1.25 mV
- Current - Supply:
- 11mA
- Current - Output / Channel:
- 60 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-23-5
MAX4430EUK FAQ
1.How can I place an order for MAX4430EUK through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4430EUK 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 MAX4430EUK reliable?
The price and inventory of MAX4430EUK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4430EUK is usually 5 days.
3.What payment methods are accepted for MAX4430EUK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4430EUK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4430EUK?
MAX4430EUK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4430EUK 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 MAX4430EUK?
For technical support, including MAX4430EUK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4430EUK requirements.
6.How does Aetrix verify that MAX4430EUK is sourced from the original manufacturer or authorized distributors?
All MAX4430EUK 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 MAX4430EUK meets industry standards.
7.What is the process for return or replacement of MAX4430EUK?
All MAX4430EUK units undergo pre-shipment inspection (PSI). If there is an issue with MAX4430EUK, 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 MAX4430EUK part is unused and in its original packaging.
Return procedure for MAX4430EUK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4430EUK Tags
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