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Analog Devices Inc./Maxim Integrated MAX4430ESA
- Part No.:
- MAX4430ESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4430ESA.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,215
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Product details
Overview
The MAX4430ESA from Maxim Integrated is a single, dual-supply, unity-gain-stable voltage-feedback operational amplifier optimized for high-speed, low-distortion ADC driving. It delivers 180MHz small-signal -3dB bandwidth, 37ns 16-bit (0.0015%) settling time, and 2.8nV/√Hz input voltage noise density. Designed for precision signal conditioning in 14- and 16-bit data acquisition systems, it drives ≥4Vp-p ADC inputs with ±60mA output current.
For engineers reviewing the MAX4430ESA datasheet, MAX4430ESA pinout, MAX4430ESA application, or MAX4430ESA equivalent, key selection criteria include unity-gain stability, 180MHz bandwidth, 37ns 16-bit settling, low 2.8nV/√Hz noise, and SO-8 package compatibility with high-density mixed-signal PCB layouts.
Technical Context
The MAX4430ESA employs a voltage-feedback architecture with internal unity-gain compensation, enabling stable operation at closed-loop gains ≥+1 V/V. Its 125dB open-loop gain and 115dB CMRR support high-accuracy DC-coupled signal chains, while its 145V/µs slew rate (typical for +2V/V gain variants) is not applicable-this part is specified for +1V/V only.
It operates from dual ±4.5V to ±5.5V supplies, supports rail-to-rail output swing (VEE + 2.6V to VCC – 0.6V into 500Ω), and maintains 100dB SFDR at 1MHz with 4Vp-p output-critical for preserving ENOB in high-resolution ADC front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 180MHz at AVCL = +1 - enables accurate amplification of signals up to ~100MHz before -3dB roll-off. |
| 16-Bit Settling Time | 37ns to 0.0015% - ensures full 16-bit accuracy within one ADC sampling period at ≥25MSPS. |
| Input Voltage Noise | 2.8nV/√Hz - contributes <1.2µVRMS integrated noise over 10MHz bandwidth, preserving SNR in sensitive preamps. |
| Open-Loop Gain | 125dB (min 110dB) - provides >100,000× error suppression for precision DC gain accuracy. |
| Output Drive | ±60mA into 20Ω - sustains fast transient response driving heavy capacitive loads typical of switched-capacitor ADC inputs. |
| Supply Current | 11mA per amplifier - balances high-speed performance with moderate power in space-constrained systems. |
| Spurious-Free Dynamic Range | 100dBc at 1MHz, 4Vp-p - minimizes harmonic distortion that degrades effective resolution in RF/IF sampling. |
Pinout & Package
The MAX4430ESA is housed in an 8-pin SO (SOIC-N) surface-mount package with standard 1.27mm pitch and 5.0mm × 6.2mm body size. Pin 1 is marked by a beveled corner or dot; pins are numbered counterclockwise from top-left when viewed from the top.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No Connection (N.C.) | Internally unconnected; must remain floating or tied to ground only if required by layout EMI mitigation. |
| 2 | VEE | Negative supply rail input; requires low-impedance bypassing (0.1µF ceramic + 10µF tantalum) near pin. |
| 3 | IN+ | Noninverting input; high-impedance node (1MΩ common-mode, 12kΩ differential); sensitive to layout parasitics. |
| 4 | IN− | Inverting input; matched to IN+ for optimal CMRR; feedback network connects here in most configurations. |
| 5 | N.C. | No Connection (N.C.); internally unconnected; no external connection required. |
| 6 | OUT | Amplifier output; capable of ±60mA drive; isolation resistor recommended when driving >47pF capacitive loads. |
| 7 | N.C. | No Connection (N.C.); internally unconnected; leave unconnected. |
| 8 | VCC | Positive supply rail input; requires identical bypassing as VEE to minimize PSRR degradation. |
Key Features
| Feature | Design Value |
|---|---|
| 16-bit accurate settling in 37ns | Enables direct interface with 25+ MSPS 16-bit ADCs without additional settling-time margin. |
| 100dB SFDR at 1MHz, 4Vp-p | Maintains >16.6 ENOB in IF sampling applications where spectral purity is critical. |
| 2.8nV/√Hz input voltage noise density | Limits total input-referred noise to <1.2µVRMS over 10MHz, supporting sub-LSB error in 16-bit systems. |
| Unity-gain stable voltage-feedback architecture | Eliminates need for external compensation components while retaining wide bandwidth and predictable phase margin. |
| ±60mA output drive into 20Ω | Supports fast charging of ADC sample-and-hold capacitors without droop-induced linearity errors. |
Applications
| High-Speed ADC Preamplifier | Low-Distortion Active Filter |
|---|---|
|
Use Scenario: Driving the analog input of a 16-bit, 40MSPS pipeline ADC in a communications receiver front-end. IC Role / Device Role / Timing Role: High-fidelity buffer and gain stage ensuring signal integrity during ADC sampling aperture. Use Value: 37ns 16-bit settling guarantees full resolution capture at maximum sampling rate without cycle-skipping or dead-time penalties. |
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: Low-noise, low-distortion active filter stage maintaining passband flatness and stopband rejection. Use Value: 180MHz bandwidth and 100dB SFDR preserve filter shape fidelity up to 50MHz, preventing aliasing artifacts. |
| IF Amplifier | Precision Instrumentation Signal Chain |
|
Use Scenario: Amplifying 70MHz IF signals in a software-defined radio (SDR) downconverter before digitization. IC Role / Device Role / Timing Role: Wideband, low-phase-noise gain block operating in linear region with minimal group delay variation. Use Value: 2.8nV/√Hz noise and 100dB SFDR ensure >75dB spurious-free dynamic range across the IF band. |
Use Scenario: Conditioning low-level sensor outputs (e.g., strain gauge bridge) prior to 16-bit ΣΔ ADC in industrial monitoring. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with high open-loop gain and low offset drift. Use Value: 125dB open-loop gain and 7µV/°C TCVOS enable <0.01% gain error and <5µV 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 | 250MHz bandwidth, 1050V/µs slew rate, but higher 4.5nV/√Hz noise and not unity-gain stable (min gain = +2). | Requires gain ≥+2; unsuitable for unity-gain buffers; better for high-slew-rate pulse amplification. | Select AD8001ARZ only when ≥+2 closed-loop gain is acceptable and higher slew rate outweighs noise penalty. |
| LMH6629MA/NOPB | 1.5GHz bandwidth, 3.9nV/√Hz noise, unity-gain stable, but 15mA supply current and SO-8 footprint differs (pin 1 = IN−, not N.C.). | Higher bandwidth trades off power and noise; pinout mismatch requires PCB redesign. | Choose LMH6629MA/NOPB only when >500MHz small-signal bandwidth is essential and layout revision is feasible. |
Compared with AD8001ARZ and LMH6629MA/NOPB, the MAX4430ESA offers the optimal balance of 180MHz bandwidth, 2.8nV/√Hz noise, unity-gain stability, and SO-8 pinout compatibility-making it uniquely suited for cost- and space-sensitive 16-bit ADC driver designs without layout changes.
Availability
The MAX4430ESA is available at Aetrix Electronics and suitable for high-speed data acquisition, precision instrumentation, and communications infrastructure requiring stable component supply and long-term manufacturability.
Supply support for MAX4430ESA 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 demanding industrial, communications, and computing applications.
The MAX4430–MAX4433 family was designed specifically to address the signal integrity challenges of driving modern high-speed 14- and 16-bit ADCs with minimal distortion, noise, and settling time penalties.
FAQ
What is the maximum capacitive load the MAX4430ESA can drive without oscillation?
The MAX4430ESA can drive up to 47pF without sustained oscillations, as verified in the Absolute Maximum Ratings and AC Electrical Characteristics sections. For loads exceeding this value, a series isolation resistor (e.g., 10–50Ω) between the output and capacitive load is recommended to restore phase margin and suppress ringing-verified in Typical Operating Characteristics Figure 3 and toc17.
Is the MAX4430ESA unity-gain stable, and what does that mean for circuit design?
Yes, the MAX4430ESA is internally compensated for unity-gain stability (AVCL ≥ +1 V/V), meaning it remains stable without external compensation components in buffer or gain-of-one configurations. This simplifies design for ADC input buffering and eliminates risk of peaking or oscillation seen with decompensated amplifiers like the MAX4431.
What is the guaranteed open-loop gain of the MAX4430ESA over temperature?
The MAX4430ESA guarantees a minimum open-loop gain of 110dB over the full -40°C to +85°C operating temperature range, with typical performance at 125dB at +25°C. This is confirmed in the DC Electrical Characteristics table under "Open-Loop Gain (AVOL)" with conditions VEE + 2.5 ≤ VOUT ≤ VCC – 0.9V and RL = 500Ω to ground.
Does the MAX4430ESA support single-supply operation?
No-the MAX4430ESA is specified exclusively for dual-supply operation from ±4.5V to ±5.5V (i.e., total supply voltage 9V to 11V). Its input common-mode range extends to VEE + 2.5V and VCC – 0.9V, and output swing is asymmetric around ground, confirming dual-rail dependency per Absolute Maximum Ratings and DC Electrical Characteristics.
How does the MAX4430ESA's 100dB SFDR at 1MHz benefit ADC performance?
The 100dB SFDR at 1MHz with 4Vp-p output directly translates to <0.001% distortion products relative to the fundamental, preserving effective number of bits (ENOB) in 16-bit ADC systems. This ensures harmonics and intermodulation products fall below the least-significant bit (LSB) floor, preventing code-dependent nonlinearity and maintaining measurement accuracy in precision digitization.
MAX4430ESA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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:
- 8-SOIC
MAX4430ESA FAQ
1.How can I place an order for MAX4430ESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4430ESA 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 MAX4430ESA reliable?
The price and inventory of MAX4430ESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4430ESA is usually 5 days.
3.What payment methods are accepted for MAX4430ESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4430ESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4430ESA?
MAX4430ESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4430ESA 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 MAX4430ESA?
For technical support, including MAX4430ESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4430ESA requirements.
6.How does Aetrix verify that MAX4430ESA is sourced from the original manufacturer or authorized distributors?
All MAX4430ESA 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 MAX4430ESA meets industry standards.
7.What is the process for return or replacement of MAX4430ESA?
All MAX4430ESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4430ESA, 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 MAX4430ESA part is unused and in its original packaging.
Return procedure for MAX4430ESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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