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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:2,185
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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 driving applications. It delivers 180MHz small-signal -3dB bandwidth, 37ns 16-bit (0.0015%) settling time, and 2.8nV/√Hz input voltage noise density while operating on ±4.5V to ±5.5V supplies with only 11mA quiescent current per amplifier.
For engineers reviewing the MAX4430EUK+T datasheet, MAX4430EUK+T pinout, MAX4430EUK+T application, or MAX4430EUK+T equivalent, key selection criteria include its unity-gain stability, 4Vp-p output swing capability into ≥500Ω loads, 100dB SFDR at 1MHz, and SOT23-5 package compatibility with space-constrained signal-chain front-ends.
Technical Context
The MAX4430EUK+T employs a voltage-feedback architecture with internal compensation for unconditional unity-gain stability-distinct from the +2V/V minimum gain requirement of the MAX4431 variant. Its 180MHz bandwidth and 145V/µs slew rate (typical) support fast transient response in precision sampling circuits.
Designed for dual-supply operation (±4.5V to ±5.5V), it achieves rail-to-rail output voltage swing (VEE + 2.6V to VCC – 0.6V into 500Ω), 110dB minimum open-loop gain, and maintains 100dB spurious-free dynamic range at 1MHz with 4Vp-p output-critical for preserving ENOB in high-resolution data acquisition systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal -3dB BW | 180MHz - enables accurate amplification of signals up to Nyquist frequency of 90MHz ADCs |
| 16-bit settling time | 37ns - ensures full 16-bit accuracy within one ADC sample period at ≥27MHz sampling rates |
| Input voltage noise | 2.8nV/√Hz - contributes <0.5 LSB noise floor when driving 16-bit, 4Vp-p ADC inputs |
| Open-loop gain | 110dB (min) - provides >100,000× error suppression for precision DC-coupled gain stages |
| Output drive | ±60mA - sustains 4Vp-p swing into 500Ω loads without clipping or distortion degradation |
| Supply current | 11mA per amplifier - balances speed and power efficiency in multi-channel instrumentation |
| Input CMVR | VEE + 2.5V to VCC – 0.9V - supports wide common-mode input ranges in bipolar signal conditioning |
Pinout & Package
The MAX4430EUK+T is housed in a 5-pin SOT23-5 package with exposed pad (thermal enhancement), footprint-compatible with industry-standard SOT23 layouts and suitable for reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Delivers full 4Vp-p swing; requires local 0.1µF ceramic bypass to ground for stability |
| 2 (VEE) | Negative supply | Accepts –4.5V to –5.5V; must be decoupled independently from VCC |
| 3 (IN+) | Noninverting input | High-impedance node (1MΩ typical); sensitive to layout-induced parasitic capacitance |
| 4 (IN–) | Inverting input | Matches IN+ in bias current (±0.35µA max offset); used for feedback network connection |
| 5 (VCC) | Positive supply | Accepts +4.5V to +5.5V; requires dedicated 0.1µF + 10µF bulk bypassing |
Key Features
| Feature | Design Value |
|---|---|
| 16-bit accurate settling | 37ns to 0.0015% - eliminates settling-related aperture uncertainty in high-speed sampling |
| Ultra-low distortion | 100dB SFDR at 1MHz with 4Vp-p output - preserves signal integrity for spectral analysis applications |
| Rail-to-rail output swing | VEE + 2.6V to VCC – 0.6V into 500Ω - maximizes dynamic range utilization of 14-/16-bit ADCs |
| Unity-gain stable | No external compensation required for AV = +1 configurations - simplifies design of buffer and gain-of-one stages |
| Low input voltage noise | 2.8nV/√Hz - limits thermal noise contribution to <1.2µV RMS over 10MHz bandwidth |
Applications
| High-Speed ADC Preamplifier | Low-Distortion Active Filter |
|---|---|
Use Scenario: Driving the analog input of a 16-bit, 100MSPS pipeline ADC in a communications receiver front-end. IC Role / Device Role / Timing Role: Precision voltage buffer and gain stage ensuring full-scale signal delivery with sub-LSB settling error before sampling clock edge. Use Value: 37ns 16-bit settling guarantees complete signal stabilization within 10ns of ADC aperture window, preventing code-dependent missing codes. | Use Scenario: Implementing a 5th-order Butterworth anti-aliasing filter preceding a 14-bit SAR ADC in test equipment. IC Role / Device Role / Timing Role: High-linearity active filter stage maintaining amplitude flatness and phase coherence across 0–40MHz passband. Use Value: 180MHz bandwidth and 100dB SFDR ensure minimal harmonic generation and group delay variation, preserving waveform fidelity. |
| IF Amplifier | Precision Instrumentation Signal Chain |
Use Scenario: Amplifying 70MHz IF signals in a software-defined radio downconverter before quadrature demodulation. IC Role / Device Role / Timing Role: Low-noise, wideband gain block providing 20dB fixed gain with minimal added phase noise. Use Value: 2.8nV/√Hz input noise and 180MHz bandwidth enable >75dB SNR at 70MHz, supporting 16-QAM constellation integrity. | Use Scenario: Conditioning low-level sensor outputs (e.g., strain gauge bridge) in a portable medical diagnostic device. IC Role / Device Role / Timing Role: Low-drift, low-noise preamplifier with programmable gain, operating from dual ±5V rails. Use Value: 110dB open-loop gain and ±5mV max input offset enable <0.01% gain error and <1µV offset drift over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-distortion op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8001ARZ | Higher 800MHz GBW but lower 105dB SFDR at 1MHz; requires +5V single supply only | Not suitable for dual-supply ±5V systems; limited to unipolar signal chains | Select only if single-supply operation and >200MHz bandwidth outweigh SFDR and supply flexibility requirements |
| LMH6629MA/NOPB | 2.1nV/√Hz noise, 1.5GHz GBW, but 45ns 16-bit settling and no unity-gain stability guarantee | Requires external compensation for AV = +1; higher power (15.5mA) and cost | Prefer when ultra-low noise dominates and gain ≥+2 is acceptable; avoid for direct ADC buffer use |
Compared with AD8001ARZ and LMH6629MA/NOPB, the MAX4430EUK+T uniquely combines guaranteed unity-gain stability, 37ns 16-bit settling, and dual-supply operation in a 5-pin SOT23-making it the optimal choice for compact, high-fidelity ADC driver designs requiring minimal external components and predictable performance.
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, consistent parametric performance across temperature, and long-term production availability.
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 semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and consumer applications.
The MAX4430–MAX4433 family was designed specifically to address the demanding settling, noise, and distortion requirements of modern 14- and 16-bit ADC drivers-emphasizing speed, accuracy, and ease of use in dual-supply signal chains.
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 when properly bypassed. For loads exceeding this value-such as ADC input capacitance plus PCB trace capacitance-a series isolation resistor (RISO) of 5Ω to 50Ω is recommended to restore phase margin. This configuration is validated in the MAX4430EUK+T datasheet Figure 3 and maintains 37ns 16-bit settling with minimal gain error.
Does the MAX4430EUK+T support single-supply operation?
The MAX4430EUK+T is characterized and guaranteed for dual-supply operation from ±4.5V to ±5.5V. While it may function with asymmetric or single-ended supplies (e.g., VCC = +5V, VEE = 0V), input common-mode range, output swing, and distortion performance are not specified under those conditions. For reliable single-supply designs, consider purpose-built alternatives like the MAX4426 instead of the MAX4430EUK+T.
How does the MAX4430EUK+T differ from the MAX4431EUK+T?
The MAX4430EUK+T is unity-gain stable with 180MHz bandwidth and 37ns 16-bit settling, whereas the MAX4431EUK+T is compensated for minimum +2V/V closed-loop gain, offering 215MHz bandwidth and 63ns settling. Both share the same SOT23-5 package and supply specifications, but the MAX4430EUK+T is preferred for buffer, gain-of-one, or low-gain configurations where stability without external compensation is critical.
Can the MAX4430EUK+T drive a 50Ω transmission line directly?
No-the MAX4430EUK+T is not designed for 50Ω line driving. Its output stage delivers ±60mA into 500Ω loads but cannot sustain continuous 100mA into 50Ω without thermal overload or distortion. For 50Ω interface applications, use a dedicated high-current driver (e.g., THS3091) or add an external current-boosting stage. The MAX4430EUK+T should be terminated with ≥500Ω loads or isolated via a series resistor when interfacing with 50Ω systems.
What is the typical input offset voltage drift over temperature for the MAX4430EUK+T?
The MAX4430EUK+T has a guaranteed input offset voltage temperature coefficient of 7µV/°C maximum. Over the full –40°C to +85°C operating range, this results in a worst-case drift of ±1.05mV relative to the room-temperature offset. Typical units exhibit <3µV/°C drift, contributing less than ±0.3mV total drift-well within the ±5mV max VOS specification and suitable for precision DC-coupled gain stages.
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:
- Last Time Buy
- 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+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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