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Analog Devices Inc./Maxim Integrated MAX4433EUA
- Part No.:
- MAX4433EUA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4433EUA.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:4,037
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Product details
Overview
The MAX4433EUA 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 215MHz small-signal -3dB bandwidth, 63ns 16-bit (0.0015%) settling time at closed-loop gain ≥+2, 2.8nV/√Hz input voltage noise density, and ±60mA output drive capability - enabling accurate signal conditioning in high-resolution data acquisition systems.
For engineers reviewing the MAX4433EUA datasheet, MAX4433EUA pinout, MAX4433EUA application, or MAX4433EUA equivalent, this page delivers verified technical context, real-world design meaning for key specs, validated dual-amplifier package mapping, and two confirmed alternative op amps with documented functional trade-offs for ADC driver selection.
Technical Context
The MAX4433EUA is internally compensated for stable operation at closed-loop gains of +2 V/V or greater, distinguishing it from the unity-gain-stable MAX4432EUA. Its voltage-feedback architecture delivers 145V/µs slew rate and supports wide output swing (VEE + 2.6V to VCC – 0.6V at RL = 500Ω), critical for driving ADC inputs with ≥4Vp-p dynamic range.
It operates from dual ±4.5V to ±5.5V supplies, draws 11–13.5mA per amplifier, and achieves 100dB spurious-free dynamic range (SFDR) at 1MHz with 4Vp-p output. Input common-mode range extends from VEE + 2.5V to VCC – 0.9V, and crosstalk between channels is –125dB at 1MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 215MHz at AVCL = +2 - enables stable amplification of IF/RF signals up to ~100MHz before 3dB roll-off. |
| 16-Bit Settling Time | 63ns to 0.0015% error at AVCL ≥ +2 - ensures full accuracy within one ADC sampling period at ≥15.9MSPS. |
| Input Voltage Noise | 2.8nV/√Hz - contributes ≤0.4 LSB noise in 16-bit, 1MHz-bandwidth systems with 4Vp-p full-scale. |
| Output Drive Current | ±60mA - drives low-impedance ADC inputs and maintains linearity into 20Ω loads. |
| Open-Loop Gain | 110dB (min) - supports <0.001% gain error in precision closed-loop configurations with feedback resistors ≤10kΩ. |
| Supply Current | 11–13.5mA per amplifier - balances speed and power for dual-channel portable or dense PCB designs. |
| Spurious-Free Dynamic Range | 100dB at 1MHz, 4Vp-p - suppresses harmonic distortion below –100dBc, preserving SNR in wideband receivers. |
Pinout & Package
The MAX4433EUA is housed in an 8-pin µMAX package (3mm × 3mm, 0.8mm height), pin-compatible with industry-standard SO-8 but with significantly reduced footprint and thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | Amplifier A Output | Low-impedance, high-current output capable of ±60mA drive and 4Vp-p swing into 500Ω. |
| 2 (INA–) | Amplifier A Inverting Input | Differential input node; requires matched DC impedance to INA+ for optimal CMRR and offset stability. |
| 3 (INA+) | Amplifier A Noninverting Input | High-impedance input (1MΩ common-mode, 12kΩ differential); sensitive to layout-induced parasitics above 10MHz. |
| 4 (VEE) | Negative Power Supply | Return path for dual-supply operation; must be bypassed with 0.1µF ceramic capacitor placed ≤2mm from pin. |
| 5 (INB+) | Amplifier B Noninverting Input | Independent input for second channel; crosstalk to OUTA is –125dB at 1MHz, enabling simultaneous dual-channel acquisition. |
| 6 (INB–) | Amplifier B Inverting Input | Matched to INB+ for common-mode rejection; shares same bias current (11–30µA) and offset matching (±0.25mV) as Amplifier A. |
| 7 (OUTB) | Amplifier B Output | Fully independent output; identical AC/DC performance to OUTA, supporting true dual-channel signal paths. |
| 8 (VCC) | Positive Power Supply | Primary supply rail; requires dedicated 0.1µF + 10µF bypass network to maintain PSRR >75dB up to 100kHz. |
Key Features
| Feature | Design Value |
|---|---|
| 16-bit accurate settling | 63ns to 0.0015% at AVCL ≥ +2 - eliminates timing margin uncertainty when interfacing with 16-bit ADCs sampling at >15MSPS. |
| Ultra-low distortion | 100dB SFDR at 1MHz, 4Vp-p - preserves signal integrity in IF sampling and direct-conversion receiver front-ends. |
| High output drive | ±60mA into 20Ω - directly drives switched-capacitor ADC inputs without external buffers or level-shifting networks. |
| Wide output voltage swing | VEE + 2.6V to VCC – 0.6V (RL = 500Ω) - accommodates ≥4Vp-p ADC input ranges while maintaining linearity across temperature. |
| Low input voltage noise | 2.8nV/√Hz - sets fundamental noise floor for precision wideband preamplifiers in instrumentation and medical imaging. |
Applications
| High-Speed ADC Preamplifier | IF/RF Signal Conditioning |
|---|---|
|
Use Scenario: Driving the input of a 16-bit, 20MSPS pipeline ADC in a software-defined radio receiver. IC Role / Device Role / Timing Role: High-fidelity buffer and gain stage that settles within 63ns to preserve 16-bit accuracy during ADC aperture time. Use Value: Enables full utilization of ADC ENOB by delivering <0.0015% settling error and 100dB SFDR at 1MHz, reducing post-processing correction overhead. |
Use Scenario: Amplifying 70MHz IF signals prior to digitization in a cellular base station transceiver. IC Role / Device Role / Timing Role: Low-distortion, wideband gain block operating at AVCL = +2 with 215MHz bandwidth and 145V/µs slew rate. Use Value: Maintains EVM compliance by limiting 2nd/3rd harmonics to <–100dBc at 1MHz, avoiding adjacent-channel interference in LTE/FDD systems. |
| Low-Distortion Active Filter | Precision Instrumentation Front-End |
|
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 both amplifiers in one MAX4433EUA for matched phase/gain response. Use Value: Achieves <–80dB stopband attenuation with <0.01% passband ripple due to 110dB open-loop gain and low 2.8nV/√Hz noise. |
Use Scenario: Signal conditioning for a 16-bit, low-noise strain gauge bridge amplifier in industrial process control. IC Role / Device Role / Timing Role: Differential input stage with matched IN+/IN– pairs and ±0.25mV input offset matching across channels. Use Value: Reduces system calibration burden by minimizing inter-channel gain/offset drift, supporting <10ppm measurement repeatability over –40°C to +85°C. |
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; 2.1nV/√Hz noise; ±30mA output drive | Better noise performance but lower bandwidth and drive - suited for lower-speed, ultra-low-noise precision apps, not 20MSPS ADCs | Select AD8022ARZ only if gain ≥+1 is required and 215MHz bandwidth is unnecessary; verify stability with capacitive ADC loads. |
| LMH6629MA/NOPB | Gain-of-5 stable; 1.5GHz bandwidth; 0.92nV/√Hz noise; ±100mA drive; higher quiescent current (20mA/amplifier) | Higher speed/noise performance trades off power and layout complexity - best for >50MSPS systems with aggressive SNR targets | Choose LMH6629MA/NOPB when >1GSPS sampling or sub-1nV/√Hz noise is mandatory; requires stricter layout and thermal management. |
Compared with AD8022ARZ and LMH6629MA/NOPB, the MAX4433EUA uniquely balances 215MHz bandwidth, 63ns 16-bit settling, and ±60mA drive at 11mA/amplifier - making it the most cost- and power-efficient solution for 14-/16-bit ADC drivers operating at 10–25MSPS with ≥4Vp-p input requirements.
Availability
The MAX4433EUA is available at Aetrix Electronics and suitable for high-speed data acquisition, communications infrastructure, precision instrumentation, and medical imaging systems requiring stable component supply across extended temperature ranges (–40°C to +85°C).
Supply support for MAX4433EUA 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 as ultra-low-distortion, high-speed op amps for driving modern 14- and 16-bit ADCs - emphasizing fast settling, wide output swing, and robust capacitive-load drive capability.
FAQ
What is the minimum stable closed-loop gain for the MAX4433EUA?
The MAX4433EUA is internally compensated for stable operation at closed-loop gains of +2 V/V or greater. Attempting to use it at unity gain (AVCL = +1) may result in peaking, overshoot, or oscillation due to insufficient phase margin. For unity-gain applications, the MAX4432EUA - the unity-gain-stable variant in the same family - must be selected instead. Always verify stability under actual load conditions using the recommended 0.1µF + 10µF bypass network.
Can the MAX4433EUA drive a capacitive ADC input directly?
Yes, the MAX4433EUA can drive capacitive ADC inputs directly, but stability depends on load capacitance. The datasheet specifies a maximum capacitive load of 47pF without sustained oscillations. For typical switched-capacitor ADC inputs (e.g., 10–30pF), direct connection is safe. If load exceeds 47pF, add a small series isolation resistor (e.g., 10–50Ω) between MAX4433EUA output and ADC input to restore phase margin - though this introduces minor gain error that must be calibrated.
What is the guaranteed operating temperature range for the MAX4433EUA?
The MAX4433EUA is specified and production-tested over the industrial temperature range of –40°C to +85°C. All key parameters - including 63ns 16-bit settling time, 215MHz bandwidth, ±60mA output drive, and 100dB SFDR - are guaranteed across this full range. The device's 150°C maximum junction temperature and thermal resistance characteristics support reliable operation in enclosed enclosures with moderate airflow.
How does the MAX4433EUA compare to the MAX4432EUA in terms of bandwidth and settling time?
The MAX4433EUA offers 215MHz small-signal –3dB bandwidth and 63ns 16-bit (0.0015%) settling time, optimized for closed-loop gains ≥+2. In contrast, the MAX4432EUA provides 180MHz bandwidth and 37ns settling time but is unity-gain stable. The trade-off is stability vs. speed: MAX4432EUA suits gain-of-1 applications like I/V conversion; MAX4433EUA excels in higher-gain, higher-speed ADC driver roles where 215MHz bandwidth and faster large-signal response are critical.
Is the MAX4433EUA pin-compatible with other 8-pin µMAX op amps?
The MAX4433EUA uses the standard 8-pin µMAX footprint (3mm × 3mm), which matches the physical outline and pad layout of other µMAX-packaged dual op amps from Maxim (e.g., MAX4472, MAX4230). However, pin functions differ: MAX4433EUA assigns pins 1/7 to outputs, 2/6 to inverting inputs, 3/5 to noninverting inputs, and 4/8 to VEE/VCC - a configuration not shared by most legacy µMAX op amps. Always verify pin mapping against the specific device's datasheet before board reuse.
MAX4433EUA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- 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 FAQ
1.How can I place an order for MAX4433EUA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4433EUA 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 reliable?
The price and inventory of MAX4433EUA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4433EUA is usually 5 days.
3.What payment methods are accepted for MAX4433EUA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4433EUA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4433EUA?
MAX4433EUA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4433EUA 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?
For technical support, including MAX4433EUA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4433EUA requirements.
6.How does Aetrix verify that MAX4433EUA is sourced from the original manufacturer or authorized distributors?
All MAX4433EUA 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 meets industry standards.
7.What is the process for return or replacement of MAX4433EUA?
All MAX4433EUA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4433EUA, 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 part is unused and in its original packaging.
Return procedure for MAX4433EUA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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