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Analog Devices Inc./Maxim Integrated MAX4434ESA
- Part No.:
- MAX4434ESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4434ESA.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,585
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Product details
Overview
MAX4434ESA from Maxim Integrated is a single, unity-gain-stable, voltage-feedback operational amplifier optimized for high-speed 14- and 16-bit ADC preamplification. It delivers 150MHz small-signal -3dB bandwidth, 35ns 16-bit (0.0015%) settling time, and 2.2nV/√Hz input voltage noise density while operating on +5V single supply with 15mA quiescent current per amplifier.
For engineers reviewing the MAX4434ESA datasheet, MAX4434ESA pinout, MAX4434ESA application, or MAX4434ESA equivalent, key selection criteria include its unity-gain stability, SO-8 package compatibility, 115dB open-loop gain, 65mA output drive capability, and suitability for precision high-speed signal conditioning in data acquisition systems.
Technical Context
The MAX4434ESA uses a voltage-feedback architecture with internal compensation for unconditional unity-gain stability. Its 133V/µs slew rate and 28MHz large-signal -3dB bandwidth support fast transient response into 500Ω loads, enabling accurate driving of modern switched-capacitor ADC inputs.
It features rail-to-rail output swing (within 200mV of VCC and 70mV of VEE at RL = 10kΩ), low 1mV input offset voltage, and 100dB minimum CMRR - all specified over -40°C to +85°C, making it suitable for industrial-grade signal chain front-ends requiring low distortion and high dynamic range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 150MHz at AVCL = +1 - supports wideband signal amplification without phase degradation up to Nyquist frequencies of ≥75MHz sampling systems. |
| 16-Bit Settling Time | 35ns (0.0015% error) - ensures full accuracy before next ADC sample clock edge in ≥28MSPS systems. |
| Input Voltage Noise | 2.2nV/√Hz - preserves SNR in low-level sensor or IF signal paths; contributes <0.5 LSB noise in 16-bit 4VP-P full-scale systems. |
| Open-Loop Gain | 115dB typical - enables high closed-loop accuracy and low gain error even with feedback resistors >10kΩ. |
| Output Drive | ±65mA - drives 500Ω loads directly and sustains 4VP-P output swing without clipping or distortion. |
| Supply Current | 15mA per amplifier - balances speed and power efficiency for battery-sensitive or thermally constrained designs. |
| Input Offset Voltage | 1mV max - limits DC error contribution in precision DC-coupled gain stages before ADC. |
Pinout & Package
MAX4434ESA is housed in an 8-pin SO (Small Outline) package, RoHS-compliant, with standard JEDEC MO-153 footprint (package code S8-2). Pin 1 is located at the top-left corner adjacent to the index mark.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | N.C. | No internal connection; must be left unconnected or tied to ground per layout best practice. |
| 2 | IN− | Inverting input; high-impedance node requiring matched trace length and impedance to IN+ for common-mode rejection. |
| 3 | IN+ | Noninverting input; reference point for differential input stage; sensitive to PCB parasitic capacitance. |
| 4 | VEE | Ground reference terminal; must connect to low-impedance analog ground plane with minimal trace inductance. |
| 5 | N.C. | No internal connection; electrically isolated; avoid routing signals nearby to prevent coupling. |
| 6 | OUT | Amplifier output; capable of sourcing/sinking ±65mA; requires local 0.1µF ceramic bypass capacitor. |
| 7 | N.C. | No internal connection; floating; recommended to tie to ground if unused to reduce EMI susceptibility. |
| 8 | VCC | +5V supply input; must be decoupled with 1nF ceramic + 10µF tantalum capacitors placed within 2mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| Unity-Gain Stability | Internally compensated for stable operation at AVCL = +1 - eliminates need for external compensation networks in buffer/gain-of-one configurations. |
| 16-Bit Accurate Settling | 35ns to 0.0015% error - guarantees full resolution settling before ADC aperture time, critical for 28MSPS+ sampling. |
| Low Distortion Performance | 97dB SFDR at 1MHz with 4VP-P output - maintains spurious-free dynamic range required for high-fidelity IF/RF signal chains. |
| High Output Current | ±65mA drive into 20Ω - enables direct interface to 50Ω transmission lines or low-impedance ADC input networks without external buffers. |
| Single-Supply Operation | +4.5V to +5.5V range with rail-to-rail output swing - simplifies system power architecture and supports true single-supply data acquisition front-ends. |
Applications
| High-Speed ADC Preamplifier | Low-Distortion Active Filter |
|---|---|
Use Scenario: Driving the switched-capacitor input of a 16-bit, 40MSPS pipeline ADC in a medical imaging data acquisition module. IC Role / Device Role / Timing Role: Precision voltage buffer and gain stage that settles fully within 35ns to preserve 16-bit linearity during ADC sampling aperture. Use Value: Enables >97dB SFDR at 1MHz input frequency, directly supporting ENOB >15.2 bits without external calibration. | Use Scenario: Implementing a 5th-order Butterworth anti-aliasing filter preceding a high-speed SAR ADC in test equipment. IC Role / Device Role / Timing Role: High-fidelity active filter stage with flat gain response up to 80MHz (0.1dB bandwidth) and minimal group delay variation. Use Value: Maintains <−97dB harmonic distortion at 2VP-P output, preventing aliasing artifacts from folding into baseband. |
| IF Amplifier | Precision Instrumentation Front-End |
Use Scenario: Amplifying 70MHz IF signals in a software-defined radio receiver before quadrature demodulation. IC Role / Device Role / Timing Role: Wideband, low-noise gain block with 150MHz bandwidth and 2.2nV/√Hz input noise to maximize receiver sensitivity. Use Value: Delivers −98dBc SFDR at 100kHz offset, ensuring clean IF signal integrity for digital downconversion. | Use Scenario: Conditioning low-level thermocouple or strain gauge outputs in a calibrated industrial process controller. IC Role / Device Role / Timing Role: Low-drift, high-PSRR (110dB) instrumentation amplifier input stage with 100dB CMRR over temperature. Use Value: Limits total input-referred offset drift to <4µV/°C, preserving ±0.02% full-scale accuracy across −40°C to +85°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8009ARZ | Higher 1GHz bandwidth but lower 100dB open-loop gain; 2.7nV/√Hz noise; not unity-gain stable - requires minimum gain of +2. | Better suited for RF gain blocks >100MHz; less ideal for precision unity-gain buffering or ADC driving where stability and DC accuracy are critical. | Select AD8009ARZ only when bandwidth >500MHz is mandatory and gain ≥+2 can be guaranteed in layout. |
| LMH6629MA/NOPB | 2.1nV/√Hz noise, 1.5GHz GBW, but 25mA quiescent current; unity-gain stable; 105dB open-loop gain. | Superior noise and bandwidth for ultra-high-resolution systems; higher supply current may limit use in power-constrained portable instruments. | Prefer LMH6629MA/NOPB when 16-bit settling <20ns and sub-2.2nV/√Hz noise are required, and thermal/power budget allows +10mA extra per channel. |
Compared with AD8009ARZ and LMH6629MA/NOPB, MAX4434ESA provides optimal balance of unity-gain stability, 150MHz bandwidth, 35ns 16-bit settling, and 15mA power consumption - making it uniquely suited for cost- and space-sensitive high-speed data acquisition where robust DC precision and AC performance must coexist.
Availability
MAX4434ESA is available at Aetrix Electronics and suitable for high-speed data acquisition, precision instrumentation, and communications infrastructure requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX4434ESA 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 MAX4434–MAX4437 family was designed specifically for high-fidelity, high-speed signal conditioning in precision data converters - emphasizing ultra-low distortion, fast settling, and single-supply operability in compact packages.
FAQ
What is the maximum capacitive load the MAX4434ESA can drive without oscillation?
The MAX4434ESA can drive up to 30pF without sustained oscillations, as specified in the Absolute Maximum Ratings table. For larger loads (e.g., ADC input capacitance + PCB trace), a series isolation resistor (RISO) of 5–20Ω is recommended to maintain phase margin. Layout practices - including short traces, ground-plane proximity, and proper VCC/VEE decoupling - are equally critical to ensure stability with capacitive loads.
Does the MAX4434ESA support dual-supply operation?
No, the MAX4434ESA is designed exclusively for single-supply operation from +4.5V to +5.5V (VEE = ground). Its input common-mode range extends from VEE to VCC − 1V, and output swings within 200mV of VCC and 70mV of VEE. Dual-supply use is not characterized or guaranteed; applying negative voltage to VEE may damage the device.
Is the MAX4434ESA pin-compatible with other devices in the MAX4434–MAX4437 family?
No - the MAX4434ESA (single amplifier, SO-8) shares the same 8-pin SO package footprint with MAX4435ESA, MAX4436ESA, and MAX4437ESA, but pin functions differ. Specifically, pins 1, 5, and 7 are N.C. in MAX4434ESA/MAX4435ESA, whereas MAX4436ESA/MAX4437ESA use those pins for dual-amplifier I/O. Direct substitution without schematic and layout revision is not possible.
What is the typical power supply rejection ratio (PSRR) of the MAX4434ESA at 1MHz?
The MAX4434ESA exhibits −101dB AC PSRR at 100kHz (AC Electrical Characteristics table); at 1MHz, PSRR degrades to approximately −60dB based on the PSRR vs. Frequency plot (Figure MAX4434-37 toc17). This means 1mV of 1MHz supply ripple translates to ~1µV of output error - acceptable for most high-speed ADC driver applications when combined with proper local decoupling.
Can the MAX4434ESA be used in inverting configuration with gain = −1?
Yes - the MAX4434ESA supports stable inverting configurations down to gain = −1, as confirmed by its unity-gain stability specification (AVCL = +1 or −1). However, layout must ensure matched input impedances at IN+ and IN− to preserve CMRR, and the series resistor RS (between source and IN−) must remain ≤500Ω to maintain dynamic stability per Applications Information guidelines.
MAX4434ESA 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:
- 133V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 150 MHz
- Current - Input Bias:
- 14 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 15mA
- Current - Output / Channel:
- 65 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4434ESA FAQ
1.How can I place an order for MAX4434ESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4434ESA 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 MAX4434ESA reliable?
The price and inventory of MAX4434ESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4434ESA is usually 5 days.
3.What payment methods are accepted for MAX4434ESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4434ESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4434ESA?
MAX4434ESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4434ESA 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 MAX4434ESA?
For technical support, including MAX4434ESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4434ESA requirements.
6.How does Aetrix verify that MAX4434ESA is sourced from the original manufacturer or authorized distributors?
All MAX4434ESA 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 MAX4434ESA meets industry standards.
7.What is the process for return or replacement of MAX4434ESA?
All MAX4434ESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4434ESA, 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 MAX4434ESA part is unused and in its original packaging.
Return procedure for MAX4434ESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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