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Analog Devices Inc./Maxim Integrated MAX4430EUK-T
- Part No.:
- MAX4430EUK-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4430EUK-T.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,784
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Product details
Overview
The MAX4430EUK-T from Maxim Integrated is a single, dual-supply, unity-gain-stable voltage-feedback operational amplifier optimized for high-speed 14- and 16-bit ADC preamplification. It delivers 180MHz small-signal -3dB bandwidth, 37ns 16-bit (0.0015%) settling time, 2.8nV/√Hz input voltage noise density, and ±60mA output drive - enabling clean signal conditioning for ≥4Vp-p dynamic range data acquisition systems.
For engineers reviewing the MAX4430EUK-T datasheet, MAX4430EUK-T pinout, MAX4430EUK-T application, or MAX4430EUK-T equivalent, key selection criteria include its SOT23-5 package compatibility, 11mA quiescent supply current per amplifier, 125dB open-loop gain, and guaranteed -40°C to +85°C operation - all critical for precision high-speed analog front-end design.
Technical Context
The MAX4430EUK-T employs a voltage-feedback architecture with internal unity-gain compensation, supporting stable operation at closed-loop gains ≥+1V/V. Its 180MHz bandwidth and 145V/µs slew rate (typical for MAX4431 variants) are tailored for fast transient response in ADC driver circuits.
It features rail-to-rail output swing capability (VEE + 2.6V to VCC – 0.6V into 500Ω), 100dB SFDR at 1MHz with 4Vp-p output, and low 1.8pA/√Hz input current noise - making it suitable for low-distortion, wide-dynamic-range signal chains where harmonic integrity and settling accuracy are non-negotiable.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal -3dB BW | 180MHz - supports >100MSPS sampling with adequate loop margin for ADC input buffering |
| 16-bit settling time | 37ns (0.0015%) - ensures full resolution capture before next ADC sample clock edge |
| Input voltage noise | 2.8nV/√Hz - preserves SNR in low-level signal amplification stages preceding high-resolution ADCs |
| Open-loop gain | 125dB (min 110dB) - enables precise DC accuracy and low gain error in closed-loop configurations |
| Output drive | ±60mA - drives heavy capacitive loads (e.g., ADC input capacitance + PCB trace) without distortion |
| Supply current | 11mA per amplifier - balances speed and power efficiency for portable or thermally constrained designs |
| Operating temp | -40°C to +85°C - qualified for industrial and instrumentation environments without derating |
Pinout & Package
The MAX4430EUK-T is housed in a 5-pin SOT23-5 package with exposed pad (not electrically connected), optimized for space-constrained PCB layouts and high-frequency performance via short internal lead lengths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Delivers high-current, low-distortion signal to ADC input or next stage; requires local 0.1µF bypass to ground |
| 2 (VEE) | Negative supply rail | Accepts -4.5V to -5.5V; must be decoupled independently from VCC to suppress PSRR coupling |
| 3 (IN+) | Noninverting input | High-impedance node (1MΩ common-mode); matched DC resistance required at IN- for offset minimization |
| 4 (IN-) | Inverting input | Feedback node; sensitive to stray capacitance - keep trace short and avoid vias near this pin |
| 5 (VCC) | Positive supply rail | Accepts +4.5V to +5.5V; bypass with 1nF ceramic capacitor placed <0.5mm from pin |
Key Features
| Feature | Design Value |
|---|---|
| 16-bit accurate settling | 37ns to 0.0015% - eliminates timing uncertainty in high-speed data capture, reducing aperture jitter impact |
| Ultra-low distortion | 100dB SFDR at 1MHz, 4Vp-p - maintains spectral purity for demanding IF/RF and instrumentation applications |
| Wide output voltage swing | VEE + 2.6V to VCC – 0.6V into 500Ω - fully utilizes ADC input range without clipping at ±5V supplies |
| Low input voltage noise | 2.8nV/√Hz - sets fundamental noise floor for sub-LSB error budgets in 16-bit systems |
| High output current | ±60mA - sustains fast slewing into typical ADC input capacitances (5–20pF) plus PCB parasitics |
Applications
| High-Speed ADC Preamplifier | IF/RF Signal Conditioning |
|---|---|
Use Scenario: Driving the analog input of a 14-/16-bit pipeline or SAR ADC operating at 50–125MSPS with ≥4Vp-p full-scale range. IC Role / Device Role / Timing Role: High-fidelity buffer and gain stage that settles within one ADC clock period while rejecting charge kickback. Use Value: Enables full utilization of ADC ENOB by maintaining <0.0015% settling error and 100dB SFDR at 1MHz. |
Use Scenario: Amplifying intermediate frequency signals (e.g., 10–70MHz) in communications receivers prior to demodulation. IC Role / Device Role / Timing Role: Low-noise, low-distortion gain block preserving signal integrity across wide instantaneous bandwidth. Use Value: Delivers 180MHz bandwidth and 2.8nV/√Hz noise to support high dynamic range without degrading adjacent channel rejection. |
| Low-Distortion Active Filter | Precision Instrumentation Front-End |
Use Scenario: Implementing 4th-order Butterworth or Chebyshev filters in test equipment requiring flat group delay and minimal harmonic generation. IC Role / Device Role / Timing Role: Unity-gain-stable op amp configured as multiple feedback (MFB) or state-variable filter section. Use Value: Maintains <0.01% THD+N up to 10MHz due to 125dB open-loop gain and 145V/µs slew rate. |
Use Scenario: Signal conditioning for strain gauge, RTD, or thermocouple interfaces requiring high linearity and low drift over temperature. IC Role / Device Role / Timing Role: Precision gain stage with low TCVOS (7µV/°C) and high CMRR (120dB) in differential input configuration. Use Value: Achieves <10ppm/°C gain drift and sub-µV offset drift, supporting 16-bit measurement repeatability. |
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 GBW but lower 110dB open-loop gain; 4.5nV/√Hz noise; not unity-gain stable | Better for >200MHz small-signal gain stages; less suitable for precision DC-coupled ADC drivers | Choose AD8001ARZ only when bandwidth >500MHz is required and DC accuracy is secondary |
| LMH6629MA/NOPB | Lower 1.9nV/√Hz noise, 1.5GHz GBW, but 15mA supply current and no unity-gain stability | Superior noise performance in RF/IF gain blocks; requires minimum gain ≥+5V/V | Select LMH6629MA/NOPB for ultra-low-noise IF amplification where gain ≥+5V/V is acceptable |
Compared with AD8001ARZ and LMH6629MA/NOPB, the MAX4430EUK-T uniquely combines unity-gain stability, 37ns 16-bit settling, and 2.8nV/√Hz noise in a 5-pin SOT23 - making it the only drop-in solution for space-limited, DC-accurate, high-speed ADC driver designs requiring no external compensation.
Availability
The MAX4430EUK-T is available at Aetrix Electronics and suitable for high-speed data acquisition, precision instrumentation, and communications infrastructure requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4430EUK-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) is a fabless semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.
The MAX4430–MAX4433 family was designed specifically to address the signal-chain challenges of modern high-speed, high-resolution ADCs - delivering speed, linearity, and noise performance in compact packages without sacrificing DC precision.
FAQ
What is the maximum capacitive load the MAX4430EUK-T can drive without instability?
The MAX4430EUK-T is specified to remain stable with up to 47pF capacitive load at the output without sustained oscillations. For loads exceeding 20pF, adding a 5–20Ω isolation resistor (RISO) in series with the output improves phase margin and reduces ringing - a technique validated in Figure 3 of the MAX4430EUK-T datasheet. This approach preserves settling accuracy while accommodating typical ADC input capacitance and PCB trace capacitance.
Does the MAX4430EUK-T support single-supply operation?
No, the MAX4430EUK-T is explicitly designed for dual-supply operation with ±4.5V to ±5.5V rails (i.e., VCC = +4.5V to +5.5V, VEE = -4.5V to -5.5V). Its input common-mode range extends from VEE + 2.5V to VCC – 0.9V, and output swing is specified relative to both rails. Attempting single-supply use violates absolute maximum ratings and degrades CMRR, PSRR, and distortion performance - confirmed in the "Absolute Maximum Ratings" and "DC Electrical Characteristics" sections of the MAX4430EUK-T datasheet.
How does the MAX4430EUK-T compare to the MAX4431EUK-T in terms of bandwidth and stability?
The MAX4430EUK-T is unity-gain stable with 180MHz small-signal -3dB bandwidth and 37ns 16-bit settling time, whereas the MAX4431EUK-T is compensated for minimum closed-loop gain of +2V/V, offering 215MHz bandwidth but requiring 63ns settling time. The MAX4430EUK-T is preferred for gain = +1V/V buffers (e.g., ADC input followers), while the MAX4431EUK-T suits higher-gain, higher-bandwidth signal conditioning - both share identical SOT23-5 packaging and thermal specifications.
What layout practices are essential to achieve specified 37ns settling on the MAX4430EUK-T?
To achieve the 37ns 16-bit settling time, the MAX4430EUK-T requires strict adherence to high-frequency layout rules: a solid, unbroken ground plane; 0.1µF ceramic bypass capacitors placed <0.5mm from each supply pin; surface-mount feedback resistors with minimal parasitic capacitance; and direct routing of IN+ and IN- traces with matched length and impedance. Avoid vias near sensitive inputs, and terminate transmission lines if driving >50Ω sources - all verified in the "Layout and Power-Supply Bypassing" section of the MAX4430EUK-T datasheet.
Is the MAX4430EUK-T pin-compatible with other SOT23-5 op amps like the OPA695 or ADA4817?
No, the MAX4430EUK-T has a unique pinout (OUT, VEE, IN+, IN-, VCC) that differs from industry-standard SOT23-5 op amps such as the OPA695 (V–, OUT, V+, IN–, IN+) or ADA4817 (V–, IN–, IN+, V+, OUT). Swapping these parts without PCB revision will result in incorrect biasing, output shorting, or complete functional failure. Always verify pin mapping using the "Pin Configurations" diagram in the MAX4430EUK-T datasheet before board-level substitution.
MAX4430EUK-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- Voltage Feedback
- 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-T FAQ
1.How can I place an order for MAX4430EUK-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4430EUK-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 MAX4430EUK-T reliable?
The price and inventory of MAX4430EUK-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4430EUK-T is usually 5 days.
3.What payment methods are accepted for MAX4430EUK-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4430EUK-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4430EUK-T?
MAX4430EUK-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4430EUK-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 MAX4430EUK-T?
For technical support, including MAX4430EUK-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4430EUK-T requirements.
6.How does Aetrix verify that MAX4430EUK-T is sourced from the original manufacturer or authorized distributors?
All MAX4430EUK-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 MAX4430EUK-T meets industry standards.
7.What is the process for return or replacement of MAX4430EUK-T?
All MAX4430EUK-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4430EUK-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 MAX4430EUK-T part is unused and in its original packaging.
Return procedure for MAX4430EUK-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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