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Analog Devices Inc./Maxim Integrated MAX4435EUK+T
- Part No.:
- MAX4435EUK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4435EUK+T.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,687
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Product details
Overview
MAX4435EUK+T from Maxim Integrated is a single, high-speed, voltage-feedback operational amplifier optimized for closed-loop gains ≥ +5V/V, delivering 16-bit accurate settling in 23ns, 150MHz small-signal -3dB bandwidth, and 388V/µs slew rate. It features 2.2nV/√Hz input voltage noise, 97dB SFDR at 1MHz (4VP-P), and 65mA output drive-making it ideal for driving high-speed 14- and 16-bit ADCs in precision data acquisition systems.
For engineers reviewing the MAX4435EUK+T datasheet, MAX4435EUK+T pinout, MAX4435EUK+T application, or MAX4435EUK+T equivalent, key selection criteria include its +5V/V minimum stable gain requirement, SOT23-5 package footprint, ultra-low distortion performance at high output swing, and compatibility with capacitive ADC input loads up to 30pF without sustained oscillation.
Technical Context
The MAX4435EUK+T employs a voltage-feedback architecture with internal compensation tailored for closed-loop gains of +5V/V or greater-distinguishing it from unity-gain-stable variants like the MAX4434. Its 388V/µs slew rate and 23ns 16-bit settling time enable clean signal conditioning for fast sampling ADCs, while its 2.2nV/√Hz voltage noise and 97dB SFDR support high dynamic range at 1MHz.
Designed for single-supply operation from +4.5V to +5.5V, it delivers rail-to-rail output swing capability (within 200mV of VCC and 70mV of VEE) into 500Ω loads, with 115dB open-loop gain and 100dB CMRR over 0–1MHz. Input common-mode range extends from VEE to VCC − 1V, supporting direct interfacing with ground-referenced sensors and ADC reference points.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal -3dB Bandwidth | 150MHz - supports wideband signal conditioning up to Nyquist frequency of >75MSPS ADCs |
| Slew Rate | 388V/µs - enables full-scale 4VP-P step response within 10ns, critical for fast-settling ADC drivers |
| 16-Bit Settling Time | 23ns (0.0015%) - guarantees accuracy for 14-/16-bit converters sampling at ≥43MSPS |
| Input Voltage Noise Density | 2.2nV/√Hz - preserves SNR in low-amplitude, high-resolution sensor front-ends |
| Spurious-Free Dynamic Range | 97dBc at 1MHz, 4VP-P - ensures minimal harmonic distortion in IF/RF receiver chains |
| Output Drive Current | ±65mA - drives 500Ω loads and compensates for ADC input charge kickback |
| Supply Voltage Range | +4.5V to +5.5V - compatible with standard 5V logic and mixed-signal system rails |
| Quiescent Current per Amplifier | 15mA - balances high-speed performance with power-constrained portable instrumentation |
Pinout & Package
MAX4435EUK+T is housed in a RoHS-compliant 5-pin SOT23 package (package code U5-1), optimized for space-constrained PCB layouts. The compact 2.9mm × 1.6mm footprint supports high-density analog signal chains while enabling efficient thermal dissipation (571mW at +70°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Amplifier output node; capable of sourcing/sinking ±65mA into 20Ω loads |
| 2 | VEE | Ground reference terminal; must be connected to low-impedance system ground plane |
| 3 | IN+ | Noninverting input; accepts common-mode voltages from VEE to VCC − 1V |
| 4 | IN− | Inverting input; used for feedback configuration and differential signal rejection |
| 5 | VCC | Positive supply rail; requires local 0.1µF ceramic bypass capacitor placed <1mm from pin |
Key Features
| Feature | Design Value |
|---|---|
| 16-bit accurate settling in 23ns | Enables use with 14-/16-bit ADCs sampling at ≥43MSPS without post-acquisition correction |
| 97dB SFDR at 1MHz, 4VP-P | Maintains spectral purity in IF amplification stages where second/third harmonics must stay below −97dBc |
| 2.2nV/√Hz input voltage noise | Preserves effective number of bits (ENOB) in low-level sensor signal paths (e.g., strain gauges, thermopiles) |
| 65mA high-output current drive | Directly buffers switched-capacitor ADC inputs without external gain-stage buffering |
| Stable at closed-loop gains ≥ +5V/V | Eliminates need for external compensation networks when used in gain-of-5 or higher configurations |
| Maximum capacitive load = 30pF | Supports direct connection to typical 14-/16-bit ADC input capacitances without isolation resistor |
Applications
| High-Speed ADC Preamplifier | Low-Distortion Active Filter |
|---|---|
|
Use Scenario: Driving the analog input of a 16-bit, 40MSPS pipeline ADC in a medical ultrasound digitizer. IC Role / Device Role / Timing Role: High-fidelity voltage buffer and gain stage that settles to 16-bit accuracy before ADC sampling edge. Use Value: 23ns settling ensures full resolution capture of transient echo signals; 97dB SFDR prevents harmonic folding into baseband. |
Use Scenario: Implementing a 5th-order Butterworth anti-aliasing filter preceding a 14-bit SAR ADC in industrial process monitoring. IC Role / Device Role / Timing Role: Low-noise, low-distortion active filter stage with precise gain control and flat group delay. Use Value: 2.2nV/√Hz noise floor avoids degrading ENOB; 150MHz bandwidth maintains filter roll-off integrity up to 10MHz. |
| IF Amplifier in Receiver Chain | Precision Instrumentation Front-End |
|
Use Scenario: Intermediate-frequency amplification in a 100MHz-bandwidth software-defined radio receiver. IC Role / Device Role / Timing Role: Fixed-gain +5V/V IF amplifier providing broadband signal conditioning prior to quadrature demodulation. Use Value: 388V/µs slew rate handles large IF transients; 97dB SFDR prevents intermodulation distortion across multi-tone signals. |
Use Scenario: Signal conditioning for a high-accuracy weigh scale using a 2mV/V bridge sensor and 16-bit ΣΔ ADC. IC Role / Device Role / Timing Role: Low-drift, low-noise instrumentation amplifier front-end with programmable gain. Use Value: 100dB min open-loop gain ensures <0.01% gain error; 4.0µV/°C TCVOS minimizes temperature-induced offset drift. |
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 |
|---|---|---|---|
| MAX4434EUK+T | Unity-gain stable; 133V/µs slew rate; 35ns 16-bit settling; 150MHz bandwidth | Better suited for gain-of-1 buffer or inverting configurations; lower slew limits large-signal fidelity | Select MAX4434EUK+T when circuit requires stable operation at AVCL = +1 and bandwidth >100MHz is sufficient |
| ADA4898-1ARZ | Unity-gain stable; 280V/µs slew rate; 25ns 16-bit settling; 295MHz bandwidth; dual supply only (±5V) | Requires split supplies; superior bandwidth but incompatible with single +5V systems | Choose ADA4898-1ARZ only if dual-supply infrastructure exists and >200MHz small-signal BW is mandatory |
Compared with MAX4434EUK+T, the MAX4435EUK+T trades unity-gain stability for faster settling and higher slew rate-enabling higher closed-loop gain accuracy in ADC driver roles. Against ADA4898-1ARZ, it offers single-supply convenience and lower quiescent current (15mA vs. 18.5mA), at the cost of bandwidth and dual-supply flexibility.
Availability
MAX4435EUK+T is available at Aetrix Electronics and suitable for high-speed data acquisition, precision instrumentation, IF/RF signal conditioning, and low-distortion active filtering requiring stable component supply and long-term production continuity.
Supply support for MAX4435EUK+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) designs high-performance analog, mixed-signal, and RF ICs for demanding industrial, communications, and medical applications.
The MAX4434–MAX4437 family was engineered specifically for high-fidelity, high-speed signal conditioning in 14-/16-bit data conversion systems-prioritizing ultra-low distortion, rapid settling, and robust capacitive-load drive capability.
FAQ
What is the minimum stable closed-loop gain for MAX4435EUK+T?
The MAX4435EUK+T is internally compensated for stable operation at closed-loop gains of +5V/V or greater. Using it at gains below +5V/V may cause peaking, ringing, or oscillation due to insufficient phase margin. This distinguishes it from the unity-gain-stable MAX4434EUK+T and mandates careful gain-setting resistor selection in all designs using MAX4435EUK+T.
Can MAX4435EUK+T drive a typical 14-bit ADC input capacitance directly?
Yes. The MAX4435EUK+T is characterized to drive up to 30pF capacitive load without sustained oscillations, matching typical switched-capacitor input capacitances of modern 14-/16-bit ADCs (e.g., AD7980, LTC2378). For loads >30pF, a series isolation resistor (e.g., 10–50Ω) is recommended per Maxim's layout guidelines to preserve stability while accepting minor gain error.
What is the maximum output voltage swing of MAX4435EUK+T at 5V supply?
At VCC = +5V and VEE = 0V, the MAX4435EUK+T delivers a guaranteed output swing of VCC − 200mV (4.8V) and VEE + 70mV (70mV) into a 10kΩ load. Under heavier 500Ω loading, swing reduces to VCC − 65mV and VEE + 15mV-sufficient to fully utilize the input range of most 5V-rail ADCs without level-shifting circuitry.
Does MAX4435EUK+T require external power-supply decoupling?
Yes. To maintain 150MHz bandwidth and prevent oscillation, the MAX4435EUK+T requires a 0.1µF ceramic capacitor placed ≤1mm from the VCC pin to ground, plus a 1nF capacitor in parallel if board parasitics exceed 100pF. A 10µF tantalum capacitor should also be placed at the power entry point to suppress low-frequency supply noise affecting SFDR performance.
How does the input voltage noise of MAX4435EUK+T compare to other high-speed op amps?
At 2.2nV/√Hz (100kHz), the MAX4435EUK+T achieves among the lowest input voltage noise for op amps with ≥150MHz bandwidth and ≥65mA output drive. This is 30% lower than the AD8009 (3.2nV/√Hz) and matches the noise floor of much slower precision op amps-enabling high-resolution signal integrity without cascading noise-amplifying stages in MAX4435EUK+T-based designs.
MAX4435EUK+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:
- Obsolete
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 388V/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:
- SOT-23-5
MAX4435EUK+T FAQ
1.How can I place an order for MAX4435EUK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4435EUK+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 MAX4435EUK+T reliable?
The price and inventory of MAX4435EUK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4435EUK+T is usually 5 days.
3.What payment methods are accepted for MAX4435EUK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4435EUK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4435EUK+T?
MAX4435EUK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4435EUK+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 MAX4435EUK+T?
For technical support, including MAX4435EUK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4435EUK+T requirements.
6.How does Aetrix verify that MAX4435EUK+T is sourced from the original manufacturer or authorized distributors?
All MAX4435EUK+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 MAX4435EUK+T meets industry standards.
7.What is the process for return or replacement of MAX4435EUK+T?
All MAX4435EUK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4435EUK+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 MAX4435EUK+T part is unused and in its original packaging.
Return procedure for MAX4435EUK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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