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Analog Devices Inc./Maxim Integrated MAX4434ESA+T
- Part No.:
- MAX4434ESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4434ESA+T.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,836
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Product details
Overview
The MAX4434ESA+T from Maxim Integrated is a single, unity-gain-stable, voltage-feedback operational amplifier optimized for high-speed 14- and 16-bit ADC driving applications. It delivers 150MHz small-signal -3dB bandwidth, 35ns 16-bit (0.0015%) settling time, 2.2nV/√Hz input voltage noise density, and 65mA output drive capability in an 8-pin SO package.
For engineers reviewing the MAX4434ESA+T datasheet, MAX4434ESA+T pinout, MAX4434ESA+T application, or MAX4434ESA+T equivalent, this op amp is selected for precision, low-distortion signal conditioning where fast settling, wide bandwidth, and rail-to-rail output swing are required in single-supply systems.
Technical Context
The MAX4434ESA+T uses a voltage-feedback architecture with internal unity-gain compensation, enabling stable operation at AVCL = +1 V/V. Its 133V/µs slew rate and 28MHz large-signal -3dB bandwidth support clean amplification of fast transient signals into capacitive ADC inputs.
It operates from a single +4.5V to +5.5V supply, features input common-mode range extending to VEE and within 1V of VCC, and maintains 115dB open-loop gain and 100dB CMRR over temperature - critical for maintaining DC accuracy in high-resolution data acquisition paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal -3dB BW | 150MHz - supports full-power bandwidth requirements for >100MSPS ADC front-ends |
| 16-bit settling time | 35ns (0.0015%) - ensures accurate sampling of fast analog transients before ADC conversion |
| Slew rate | 133V/µs - enables faithful reproduction of high-amplitude, high-frequency step signals |
| Input voltage noise | 2.2nV/√Hz - preserves SNR in low-level signal amplification stages preceding high-resolution ADCs |
| Output drive current | ±65mA - drives heavy loads including 50Ω transmission lines and switched-capacitor ADC inputs |
| Open-loop gain | 115dB (typ) - provides high loop gain for precise closed-loop gain accuracy and linearity |
| Supply voltage range | +4.5V to +5.5V - compatible with standard 5V digital supply rails and LDO-regulated analog domains |
Pinout & Package
MAX4434ESA+T is housed in an 8-pin SO (Small Outline) package, RoHS-compliant and lead(Pb)-free. Pin functions are electrically identical to the SO variants of MAX4434/MAX4436 family members.
| Pin | 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 terminal; accepts feedback network for stable closed-loop configurations |
| 3 | IN+ | Noninverting input terminal; high-impedance node requiring matched trace impedance in RF-sensitive layouts |
| 4 | VEE | Ground reference pin; connects to low-impedance system ground plane to minimize noise coupling |
| 5 | N.C. | No internal connection; must be left unconnected or tied to ground per layout best practice |
| 6 | N.C. | No internal connection; must be left unconnected or tied to ground per layout best practice |
| 7 | OUT | Amplifier output; capable of ±65mA drive and rail-to-rail swing into 500Ω load |
| 8 | VCC | Positive power supply; requires local 0.1µF ceramic + 10µF tantalum bypassing for stability |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stability | Internally compensated for AVCL = +1 V/V - eliminates need for external compensation in buffer/gain=1 designs |
| 16-bit accurate settling | 35ns to 0.0015% - meets timing budget for 25+ MSPS sampling without aperture uncertainty penalty |
| Low distortion performance | −97dB SFDR at 1MHz, 4VP-P - preserves dynamic range when driving 16-bit ADCs with full-scale sine inputs |
| High-output current | 65mA sourcing/sinking - directly drives 50Ω coaxial cables and ADC input capacitance without external buffers |
| Single-supply operation | VCC = +4.5V to +5.5V, VEE = GND - simplifies power architecture in mixed-signal systems with shared 5V rails |
Applications
| High-Speed ADC Preamplifier | IF/RF Signal Conditioning |
|---|---|
|
Use Scenario: Driving the analog input of a 16-bit, 100MSPS pipeline ADC in a software-defined radio receiver. IC Role / Device Role / Timing Role: High-fidelity, low-noise, fast-settling buffer that maintains signal integrity during switched-capacitor sampling events. Use Value: 35ns 16-bit settling ensures <1 LSB error at full sample rate; 2.2nV/√Hz noise avoids degrading ADC's theoretical SNR. |
Use Scenario: Amplifying intermediate frequency (IF) signals at 70MHz in a cellular base station transceiver chain. IC Role / Device Role / Timing Role: Low-distortion, wide-bandwidth gain stage operating in fixed-gain configuration with minimal group delay variation. Use Value: 150MHz bandwidth and −97dBc SFDR preserve adjacent-channel rejection; 133V/µs slew rate prevents slewing-induced distortion on large IF envelopes. |
| 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: Unity-gain stable amplifier in multiple feedback (MFB) topology, providing precise pole placement and amplitude flatness. Use Value: 100dB open-loop gain ensures <0.01% gain error across filter passband; low input bias current minimizes offset drift in high-Z RC networks. |
Use Scenario: Conditioning low-level sensor outputs (e.g., strain gauge bridges) in medical diagnostic equipment requiring 16-bit resolution. IC Role / Device Role / Timing Role: Precision noninverting amplifier with high CMRR and low 1/f noise, configured for G = 100–1000. Use Value: 100dB CMRR rejects common-mode interference from noisy digital subsystems; 4µV/°C TCVOS limits thermal drift in ambient-varying environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-noise op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8009ARZ | Higher slew rate (1000V/µs), lower bandwidth (1GHz), higher quiescent current (17mA vs. 15mA) | Better for >100MHz pulse amplification; less optimized for 16-bit ADC settling due to higher distortion at 1–10MHz | Select AD8009ARZ when ultrafast edge fidelity dominates over SFDR and power efficiency |
| LMH6629MA/NOPB | Lower noise (1.9nV/√Hz), similar bandwidth (1.5GHz), higher supply voltage range (±5V to ±6V) | Requires dual supply; superior for low-noise preamp stages but not pin-compatible or drop-in for single-supply 5V systems | Select LMH6629MA/NOPB only when dual-supply architecture is available and sub-2nV/√Hz noise is mandatory |
Compared with AD8009ARZ and LMH6629MA/NOPB, the MAX4434ESA+T offers the optimal balance of 150MHz bandwidth, 35ns 16-bit settling, −97dB SFDR, and single +5V operation - making it uniquely suited for cost- and power-sensitive high-resolution ADC driver applications without sacrificing AC performance.
Availability
MAX4434ESA+T is available at Aetrix Electronics and suitable for high-speed data acquisition, communications infrastructure, and precision instrumentation requiring stable component supply, long-term manufacturability, and RoHS-compliant packaging.
Supply support for MAX4434ESA+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 computing markets.
The MAX4434ESA+T belongs to the MAX4434–MAX4437 family of ultra-low-distortion, high-speed op amps designed specifically for driving modern 14- and 16-bit ADCs with minimal signal degradation.
FAQ
What is the maximum capacitive load the MAX4434ESA+T can drive without oscillation?
The MAX4434ESA+T can drive up to 30pF without sustained oscillations under typical conditions. For larger capacitive loads - such as ADC input capacitance plus PCB trace capacitance - a series isolation resistor (RISO) of 5Ω to 50Ω is recommended between the output and load to restore phase margin. This technique is validated in the datasheet's Typical Operating Characteristics and Figure 3.
Does the MAX4434ESA+T support rail-to-rail output swing?
The MAX4434ESA+T does not provide true rail-to-rail output swing. Its output voltage swing is specified as VOH = VCC − 65mV (min) and VOL = VEE + 15mV (min) into 10kΩ, meaning it swings within ~65mV of VCC and ~15mV of ground. This near-rail performance is sufficient for driving most 16-bit ADC inputs referenced to VCC/2.
Can the MAX4434ESA+T operate from a single 3.3V supply?
No. The MAX4434ESA+T is specified for operation from +4.5V to +5.5V only. Its internal architecture and biasing require minimum 4.5V to guarantee all AC and DC specifications - including 150MHz bandwidth, 115dB open-loop gain, and 65mA output drive - across temperature. Operation below 4.5V is not characterized and may result in degraded performance or instability.
What is the input common-mode voltage range of the MAX4434ESA+T?
The input common-mode voltage range of the MAX4434ESA+T is from VEE (ground) to VCC − 1V, as guaranteed by CMRR testing. This allows the device to accept signals near ground while rejecting noise on the positive rail - a key advantage in single-supply, high-resolution signal chains where input signals may sit close to either supply rail.
Is the MAX4434ESA+T pin-compatible with other devices in the MAX4434–MAX4437 family?
The MAX4434ESA+T shares the same 8-pin SO pinout with MAX4434ESA, MAX4436ESA, and MAX4437ESA. However, it is not functionally interchangeable with the dual-amplifier MAX4436/MAX4437 variants, nor with the +5V/V-compensated MAX4435/MAX4437. Only MAX4434-series parts (unity-gain stable, single amplifier) are direct functional replacements in the same SO package.
MAX4434ESA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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+T FAQ
1.How can I place an order for MAX4434ESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4434ESA+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 MAX4434ESA+T reliable?
The price and inventory of MAX4434ESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4434ESA+T is usually 5 days.
3.What payment methods are accepted for MAX4434ESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4434ESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4434ESA+T?
MAX4434ESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4434ESA+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 MAX4434ESA+T?
For technical support, including MAX4434ESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4434ESA+T requirements.
6.How does Aetrix verify that MAX4434ESA+T is sourced from the original manufacturer or authorized distributors?
All MAX4434ESA+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 MAX4434ESA+T meets industry standards.
7.What is the process for return or replacement of MAX4434ESA+T?
All MAX4434ESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4434ESA+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 MAX4434ESA+T part is unused and in its original packaging.
Return procedure for MAX4434ESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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