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Analog Devices Inc./Maxim Integrated MAX4308ESA
- Part No.:
- MAX4308ESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4308ESA.pdf
- Description:
- IC OPAMP 400MHZ LO-DIST 8-SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:29,514
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Product details
Overview
MAX4308ESA from Maxim Integrated is a high-speed, ultra-low-distortion voltage-feedback operational amplifier optimized for closed-loop gains ≥5V/V. It delivers 220MHz −3dB bandwidth, 1200V/µs slew rate, and −90dBc spurious-free dynamic range at 5MHz (2Vp-p, RL = 100Ω), enabling precision RF signal conditioning in ADC/DAC interfaces and video amplification circuits.
For engineers reviewing the MAX4308ESA datasheet, MAX4308ESA pinout, MAX4308ESA application, or MAX4308ESA equivalent, this page provides verified specifications, SO-8 package layout, real-world distortion performance data, gain-stability constraints, and validated alternatives for high-frequency analog signal path design.
Technical Context
The MAX4308ESA uses a voltage-feedback architecture with internal compensation tailored for minimum stable gain of +5V/V - unlike unity-gain-stable MAX4108 or +2V/V-stable MAX4109. Its wideband open-loop response supports fast settling (12ns to 0.1%) and maintains 0.004%/0.008° differential gain/phase accuracy at 3.58MHz with 150Ω load, critical for broadcast video fidelity.
Designed for ±5V dual supplies, it drives 90mA output current into low-impedance loads while sustaining 30MHz 0.1dB gain flatness and 130MHz full-power bandwidth (2Vp-p). Input stage features 1.5MΩ common-mode resistance and 2pF input capacitance, requiring careful PCB layout to avoid parasitic-induced peaking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3dB Bandwidth | 220MHz at AVCL = +5 - defines usable small-signal frequency range before 3dB attenuation |
| Slew Rate | 1200V/µs - enables clean 2Vp-p output swing up to 300MHz without slewing distortion |
| Spurious-Free Dynamic Range | −90dBc at fC = 5MHz, VOUT = 2Vp-p, RL = 100Ω - quantifies spectral purity in RF/IF stages |
| Output Current Drive | 90mA - supports direct driving of 50Ω transmission lines or parallel ADC inputs |
| Differential Gain/Phase | 0.004%/0.008° at 3.58MHz, RL = 150Ω - meets broadcast TV color fidelity requirements |
| Supply Voltage Range | ±4.5V to ±5.5V - requires tightly regulated dual rails; 12V total supply limit prevents damage |
| Operating Temperature | −40°C to +85°C - qualified for industrial and embedded video/communications equipment |
Pinout & Package
MAX4308ESA is housed in an 8-pin SOIC (SO) package with exposed pad not present; pin 1 is marked by notch or dot. Thermal resistance θJA = 170°C/W. Device uses standard SO-8 footprint (5.0mm × 6.2mm, 1.27mm pitch).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | N.C. | No internal connection - must remain unconnected; floating or tied to ground degrades AC performance |
| 2 | IN− | Inverting input - high-impedance node; sensitive to stray capacitance; requires symmetric trace routing |
| 3 | IN+ | Noninverting input - matched to IN− for CMRR; bypass capacitor placement affects stability |
| 4, 5 | VEE | Negative power supply (−5V) - low-inductance decoupling (0.1µF ceramic + 10µF tantalum) required at each pin |
| 6 | OUT | Amplifier output - drives reactive loads only with series isolation resistor (e.g., 8.2Ω–47Ω) |
| 7, 8 | VCC | Positive power supply (+5V) - separate decoupling from VEE; star grounding essential for low distortion |
Key Features
| Feature | Design Value |
|---|---|
| Stable at AVCL ≥ +5 | Eliminates need for external compensation; prevents oscillation when configured for gain-of-5 or higher |
| Ultra-low harmonic distortion | −90dBc SFDR at 5MHz enables clean IF amplification without post-filtering in SDR receivers |
| High output drive capability | 90mA sink/source supports simultaneous driving of multiple 75Ω video lines or ADC sample-and-hold inputs |
| Low differential gain/phase error | 0.004%/0.008° at NTSC/PAL frequencies ensures broadcast-grade color reproduction in RGB/composite systems |
| Short-circuit protected output | Withstands continuous OUT-to-GND fault without latch-up or parameter shift - improves system robustness |
Applications
| High-Speed ADC/DAC Preamp | RGB and Composite Video |
|---|---|
Use Scenario: Buffering analog signals into 12-bit, 100+ MSPS ADCs where input capacitance and dynamic impedance variation demand low-Z, fast-settling drive. IC Role / Device Role / Timing Role: ADC input buffer providing 12ns 0.1% settling, 90mA peak current, and −90dBc SFDR to preserve ENOB at high input frequencies. Use Value: Maintains >10.5 effective bits at 5MHz input due to ultra-low distortion and full-power bandwidth exceeding 130MHz. |
Use Scenario: Amplifying RGB baseband or composite CVBS signals in broadcast monitors, medical imaging displays, and HD video switchers. IC Role / Device Role / Timing Role: Video line driver delivering 0.004%/0.008° differential gain/phase accuracy at 3.58MHz with 150Ω load. Use Value: Meets ITU-R BT.601 color fidelity specs without external calibration, reducing BOM count and board area. |
| High-Performance Receivers | Pulse/RF Amplifier |
Use Scenario: IF amplification in software-defined radios and spectrum analyzers operating from 1MHz to 100MHz with variable gain control. IC Role / Device Role / Timing Role: Fixed-gain +5V/V IF amplifier with 220MHz bandwidth and −90dBc SFDR at 5MHz. Use Value: Enables direct sampling of 50MHz IF signals with <0.5dB gain ripple across 30MHz span, simplifying filter design. |
Use Scenario: Amplifying fast-rising (≤2ns) pulse signals in time-of-flight sensors, laser drivers, and radar front-ends. IC Role / Device Role / Timing Role: Pulse amplifier with 1200V/µs slew rate and 12ns 0.1% settling supporting sub-10ns edge fidelity. Use Value: Preserves pulse shape integrity for accurate timing measurements without overshoot or ringing when loaded with 100Ω. |
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 |
|---|---|---|---|
| MAX4109ESA | Stable at AVCL ≥ +2; 225MHz −3dB BW; −90dBc SFDR at 5MHz | Better suited for gain-of-2 video distribution or ADC buffering where lower gain suffices | Select MAX4109ESA if circuit requires gain ≥2 but not ≥5 - avoids overdesign and reduces power dissipation |
| LMH6702MA/NOPB | Unity-gain stable; 1.7GHz GBW; 3100V/µs SR; −78dBc SFDR at 5MHz (RL=100Ω) | Higher speed but higher distortion - appropriate for wideband IF gain stages where SFDR >−85dBc is acceptable | Choose LMH6702MA/NOPB only when bandwidth >1GHz is mandatory and −90dBc SFDR is not required |
Compared with MAX4308ESA, MAX4109ESA offers lower minimum gain stability and near-identical SFDR but reduced bandwidth headroom for +5V/V designs, while LMH6702MA/NOPB trades ultra-low distortion for extreme speed - making MAX4308ESA optimal for distortion-critical, fixed-gain ≥5 signal chains.
Availability
MAX4308ESA is available at Aetrix Electronics and suitable for high-speed data acquisition, broadcast video infrastructure, and RF receiver front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4308ESA 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 precision analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX4108/MAX4109/MAX4308/MAX4309 family was engineered specifically for ultra-low-distortion, high-bandwidth signal conditioning in RF, video, and high-speed data converter interfaces.
FAQ
What is the minimum stable closed-loop gain for MAX4308ESA?
The MAX4308ESA is internally compensated for minimum stable closed-loop gain of +5V/V. Operating below this gain - such as unity-gain or gain-of-2 configurations - risks instability, peaking, or oscillation. For gain-of-1 applications, use MAX4108ESA; for gain-of-2, select MAX4109ESA. Always verify phase margin in simulation when using feedback networks near the stability boundary.
Does MAX4308ESA support single-supply operation?
No, MAX4308ESA is specified and characterized only for dual-supply operation from ±4.5V to ±5.5V. Its input common-mode range extends to ±2.5V and output swing reaches ±3.1V into 100Ω, which requires both positive and negative rails. Attempting single-supply biasing violates absolute maximum ratings and degrades distortion, bandwidth, and DC accuracy. Use rail-to-rail op amps like MAX44260 for true single-supply designs.
How should I drive capacitive loads with MAX4308ESA?
MAX4308ESA requires a series isolation resistor (RS) between its output (pin 6) and any capacitive load (e.g., coaxial cable, ADC input capacitance). Recommended RS values range from 8.2Ω to 47Ω depending on load capacitance (see Figure 1b and 3c in datasheet). Without RS, even 5pF causes severe peaking; with proper RS, stability and flat frequency response are maintained up to 100pF.
What is the thermal performance of MAX4308ESA in SO-8 package?
MAX4308ESA in SO-8 has a junction-to-ambient thermal resistance (θJA) of 170°C/W under standard JEDEC 2-layer board conditions. At 471mW max power dissipation (TA = +70°C), junction temperature rises ~80°C above ambient - limiting safe operation to ≤+105°C case temperature. For high-power or high-temperature environments, add copper pour under pin 4/5 (VEE) and pin 7/8 (VCC), and consider derating power by 5.88mW/°C above +70°C ambient.
Can MAX4308ESA replace MAX4309ESA in a gain-of-10 circuit?
No - MAX4308ESA and MAX4309ESA are not interchangeable in gain-of-10 circuits. MAX4309ESA is compensated for minimum gain of +10V/V and exhibits stable behavior only at that gain or higher; using it at +5V/V causes instability. Conversely, MAX4308ESA is optimized for +5V/V and will not meet phase margin requirements at +10V/V without external compensation. Always match the amplifier's gain stability rating to the target closed-loop gain.
MAX4308ESA 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:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 1200V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- -
- Current - Input Bias:
- -
- Voltage - Input Offset:
- -
- Current - Supply:
- -
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- -
- Voltage - Supply Span (Max):
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4308ESA FAQ
1.How can I place an order for MAX4308ESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4308ESA 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 MAX4308ESA reliable?
The price and inventory of MAX4308ESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4308ESA is usually 5 days.
3.What payment methods are accepted for MAX4308ESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4308ESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4308ESA?
MAX4308ESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4308ESA 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 MAX4308ESA?
For technical support, including MAX4308ESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4308ESA requirements.
6.How does Aetrix verify that MAX4308ESA is sourced from the original manufacturer or authorized distributors?
All MAX4308ESA 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 MAX4308ESA meets industry standards.
7.What is the process for return or replacement of MAX4308ESA?
All MAX4308ESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4308ESA, 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 MAX4308ESA part is unused and in its original packaging.
Return procedure for MAX4308ESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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