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Analog Devices Inc./Maxim Integrated MAX4433EUA+T
- Part No.:
- MAX4433EUA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4433EUA+T.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:3,028
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Product details
Overview
MAX4433EUA+T from Maxim Integrated is a dual, high-speed, voltage-feedback operational amplifier optimized for driving 14- and 16-bit analog-to-digital converters (ADCs). It features +2V/V minimum stable gain, 215MHz small-signal −3dB bandwidth, 63ns 16-bit (0.0015%) settling time, 2.8nV/√Hz input voltage noise density, and ±60mA output drive capability - enabling precise signal conditioning in high-resolution data acquisition systems.
For engineers reviewing the MAX4433EUA+T datasheet, MAX4433EUA+T pinout, MAX4433EUA+T application, or MAX4433EUA+T equivalent, key selection criteria include closed-loop gain stability at +2V/V, 215MHz bandwidth under AVCL = +2, 63ns settling to 16-bit accuracy, SFDR of 100dB at 1MHz with 4Vp-p output, and compatibility with ≥4Vp-p ADC input dynamic range requirements.
Technical Context
The MAX4433EUA+T employs a voltage-feedback architecture with internal compensation for closed-loop gains of +2V/V or greater - distinguishing it from unity-gain-stable variants like the MAX4432. Its 215MHz small-signal bandwidth and 145V/µs slew rate support fast transient response in ADC driver and IF amplifier roles.
Designed for dual-supply operation (±4.5V to ±5.5V), it delivers rail-to-rail-capable output swing (VEE + 2.6V to VCC − 0.6V into 500Ω) and maintains 110dB minimum open-loop gain across temperature, ensuring precision in closed-loop configurations where gain accuracy and linearity are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal −3dB bandwidth | 215MHz at AVCL = +2 - enables accurate amplification of multi-MHz baseband and IF signals without attenuation. |
| 16-bit settling time | 63ns to 0.0015% - ensures full resolution capture for 14-/16-bit ADCs sampling up to ~15.9MSPS. |
| Input voltage noise density | 2.8nV/√Hz - preserves SNR in low-level preamplifier stages before high-resolution ADCs. |
| Spurious-free dynamic range | 100dB at 1MHz, 4Vp-p output - minimizes harmonic distortion in wide-dynamic-range instrumentation. |
| Output drive current | ±60mA - drives heavy capacitive loads (e.g., ADC input sampling capacitors) without gain error or instability. |
| Open-loop gain | 110dB (min) - supports high-precision closed-loop gain accuracy even with feedback resistor tolerances. |
| Slew rate | 145V/µs - handles large-signal transients (e.g., 4V step) within 40ns rise/fall time. |
Pinout & Package
The MAX4433EUA+T is housed in an 8-pin µMAX package (3mm × 3mm, 0.8mm height), a space-saving surface-mount package with exposed pad for thermal enhancement and compatible with standard SOIC footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | Amplifier A output | Drives external load or ADC input; capable of ±60mA sourcing/sinking into 20Ω. |
| 2 (INA−) | Amplifier A inverting input | High-impedance node (1MΩ common-mode input resistance); requires matched DC impedance for offset minimization. |
| 3 (INA+) | Amplifier A noninverting input | High-impedance node; used for single-ended or differential input configuration with proper termination. |
| 4 (VEE) | Negative power supply | Accepts −4.5V to −5.5V; must be bypassed with 0.1µF ceramic capacitor near pin. |
| 5 (INB+) | Amplifier B noninverting input | Independent input for second channel; shares same noise and bandwidth specs as Channel A. |
| 6 (INB−) | Amplifier B inverting input | Independent input; crosstalk to Channel A is −125dB at 1MHz - suitable for dual-channel isolation-critical designs. |
| 7 (OUTB) | Amplifier B output | Independent output; fully specified for simultaneous operation with OUTA under same thermal conditions. |
| 8 (VCC) | Positive power supply | Accepts +4.5V to +5.5V; requires local 0.1µF ceramic + 10µF tantalum bypassing. |
Key Features
| Feature | Design Value |
|---|---|
| +2V/V minimum stable gain | Enables higher closed-loop bandwidth than unity-gain-stable op amps while maintaining phase margin >45°. |
| 100dB SFDR at 1MHz, 4Vp-p | Supports clean spectral performance in IF amplifiers and direct-conversion receiver chains. |
| 63ns 16-bit settling time | Meets timing budget for 14-/16-bit ADCs operating at ≥15MSPS without dead-time penalties. |
| 2.8nV/√Hz input voltage noise | Preserves effective number of bits (ENOB) when driving ADCs with ≥80dB SNR requirement. |
| 8-pin µMAX package | Reduces PCB area by ~50% vs. standard SO-8 while maintaining thermal performance via exposed pad. |
Applications
| High-Speed ADC Preamplifier | IF Amplifier |
|---|---|
Use Scenario: Driving the input of a 16-bit, 20MSPS pipeline ADC in a software-defined radio front-end. IC Role / Device Role / Timing Role: High-fidelity buffer and gain stage that settles within 63ns to preserve 16-bit accuracy during ADC sampling aperture. Use Value: 215MHz bandwidth and 145V/µs slew rate ensure minimal distortion on 10MHz IF signals, while 100dB SFDR prevents spurious tones from degrading adjacent-channel rejection. | Use Scenario: Amplifying 70MHz intermediate frequency signals in a cellular base station receiver before quadrature demodulation. IC Role / Device Role / Timing Role: Low-noise, low-distortion gain block operating at fixed +2V/V closed-loop gain to maintain group delay flatness. Use Value: 2.8nV/√Hz input noise and −125dB crosstalk between channels enable simultaneous dual-IF processing without intermodulation degradation. |
| Low-Distortion Active Filter | Precision Instrumentation Signal Chain |
Use Scenario: Implementing a 4th-order Butterworth anti-aliasing filter preceding a 14-bit SAR ADC in automated test equipment. IC Role / Device Role / Timing Role: Dual-channel filter section using one amplifier per stage to achieve sharp roll-off and linear phase response. Use Value: 110dB open-loop gain ensures <0.01% gain error over temperature, and 60mA output drive sustains filter Q-factor with reactive loads. | Use Scenario: Conditioning low-amplitude sensor outputs (e.g., strain gauge bridges) before digitization in industrial weigh scales. IC Role / Device Role / Timing Role: Precision differential-to-single-ended converter with gain of +2, rejecting common-mode noise from long cable runs. Use Value: 100dB CMRR and 7µV/°C input offset drift minimize calibration drift, while 215MHz bandwidth accommodates fast step-response verification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, dual op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8022ARZ | Unity-gain stable; 130MHz bandwidth; 2200V/µs slew rate; higher 4.5nV/√Hz noise. | Requires different compensation network for +2V/V gain; better suited for very fast pulse amplification than precision ADC driving. | Select AD8022ARZ only if unity-gain stability and ultra-high slew rate outweigh bandwidth and noise trade-offs. |
| LMH6629MA/NOPB | +2V/V stable; 1.5GHz gain-bandwidth product; 3.9nV/√Hz noise; higher 15mA quiescent current per amp. | Higher bandwidth allows wider loop bandwidth in active filters; increased noise limits ENOB in 16-bit systems. | Choose LMH6629MA/NOPB when >500MHz closed-loop bandwidth is required, accepting higher power and noise. |
Compared with AD8022ARZ and LMH6629MA/NOPB, the MAX4433EUA+T uniquely balances 215MHz bandwidth, 2.8nV/√Hz noise, and 63ns 16-bit settling - making it optimal for cost-sensitive, high-resolution ADC driver applications where SNR and timing accuracy are prioritized over extreme speed or unity-gain flexibility.
Availability
MAX4433EUA+T is available at Aetrix Electronics and suitable for high-speed data acquisition, communications infrastructure, and precision instrumentation requiring stable component supply, consistent parametric performance across temperature, and long-term production continuity.
Supply support for MAX4433EUA+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 for high-fidelity, high-speed signal conditioning in 14-/16-bit data conversion systems - emphasizing low noise, fast settling, and robust drive capability into capacitive ADC inputs.
FAQ
What is the minimum stable closed-loop gain for the MAX4433EUA+T?
The MAX4433EUA+T is internally compensated for closed-loop gains of +2V/V or greater. It is not unity-gain stable - attempting to use it at AVCL = +1 may result in oscillation or degraded phase margin. This design choice optimizes bandwidth and slew rate for fixed-gain ADC driver applications, and the 215MHz −3dB bandwidth is specified only under AVCL = +2 conditions.
Does the MAX4433EUA+T support dual-supply operation, and what are the allowable voltage ranges?
Yes, the MAX4433EUA+T operates from dual supplies with VCC ranging from +4.5V to +5.5V and VEE from −4.5V to −5.5V - yielding a total supply range of ±4.5V to ±5.5V. Operation outside this range violates absolute maximum ratings and risks permanent damage. The device achieves its full AC performance (e.g., 215MHz bandwidth, 100dB SFDR) only within this specified dual-supply window.
How does the MAX4433EUA+T perform when driving capacitive loads typical of ADC inputs?
The MAX4433EUA+T can drive capacitive loads up to 47pF without sustained oscillations, as verified in production testing. For larger loads (e.g., 100pF+ typical of switched-capacitor ADC inputs), adding a 10Ω–50Ω isolation resistor (RISO) in series with the output restores stability and reduces ringing - though it introduces minor gain error. This behavior is documented in Figure 3 and Typical Operating Characteristics of the MAX4433EUA+T datasheet.
What is the 16-bit settling time specification for the MAX4433EUA+T, and under what conditions is it measured?
The MAX4433EUA+T achieves 63ns settling time to 16-bit accuracy (0.0015%), measured for a 0V to 4V output step under AVCL = +2, RL = 500Ω, VCC = +5V, VEE = −5V, and TA = +25°C. This value is guaranteed across the full −40°C to +85°C operating temperature range, supporting reliable timing closure in high-speed data acquisition systems using 14-/16-bit ADCs.
Is the MAX4433EUA+T pin-compatible with other devices in the MAX4430–MAX4433 family?
No - the MAX4433EUA+T uses an 8-pin µMAX package with a specific dual-amplifier pinout (OUTA, INA−, INA+, VEE, INB+, INB−, OUTB, VCC), while the single-amplifier MAX4431 uses a 5-pin SOT23 and the MAX4430 uses either 5-pin SOT23 or 8-pin SO. Even within the dual variants, MAX4432EUA (unity-gain stable) and MAX4433EUA+T (+2V/V stable) share identical pinouts but differ electrically - substitution requires circuit validation due to gain-stability differences.
MAX4433EUA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 145V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 215 MHz
- Current - Input Bias:
- 11 µA
- Voltage - Input Offset:
- 1.25 mV
- Current - Supply:
- 11mA (x2 Channels)
- 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-uMAX/uSOP
MAX4433EUA+T FAQ
1.How can I place an order for MAX4433EUA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4433EUA+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 MAX4433EUA+T reliable?
The price and inventory of MAX4433EUA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4433EUA+T is usually 5 days.
3.What payment methods are accepted for MAX4433EUA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4433EUA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4433EUA+T?
MAX4433EUA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4433EUA+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 MAX4433EUA+T?
For technical support, including MAX4433EUA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4433EUA+T requirements.
6.How does Aetrix verify that MAX4433EUA+T is sourced from the original manufacturer or authorized distributors?
All MAX4433EUA+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 MAX4433EUA+T meets industry standards.
7.What is the process for return or replacement of MAX4433EUA+T?
All MAX4433EUA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4433EUA+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 MAX4433EUA+T part is unused and in its original packaging.
Return procedure for MAX4433EUA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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