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Analog Devices Inc./Maxim Integrated MAX437ESA
- Part No.:
- MAX437ESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX437ESA.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,950
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Product details
Overview
MAX437ESA from Maxim Integrated is a high-speed, low-power, single-supply operational amplifier with 200MHz gain-bandwidth product, 1200V/µs slew rate, and rail-to-rail output swing. It operates from +2.7V to +11V supply and delivers ±60mA output current, suited for video line driving and active filter applications.
For engineers reviewing the MAX437ESA datasheet, MAX437ESA pinout, MAX437ESA application, or MAX437ESA equivalent, key selection considerations include its 200MHz bandwidth, rail-to-rail output capability, single-supply operation down to +2.7V, and thermal shutdown protection-critical for compact analog signal-path designs.
Technical Context
The MAX437ESA employs a voltage-feedback architecture optimized for wideband performance with minimal phase shift up to 50MHz. Its internal compensation ensures stability with capacitive loads up to 100pF and supports unity-gain configuration without external components.
It integrates thermal shutdown and ESD protection rated to ±2kV (HBM), and features input common-mode range extending 100mV beyond the negative rail-enabling true single-supply sensing in DC-coupled systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 200MHz - enables stable closed-loop operation at ≥10MHz with gain ≥20V/V |
| Slew Rate | 1200V/µs - supports clean 10MHz sine-wave output at ±2V amplitude without distortion |
| Supply Voltage Range | +2.7V to +11V - allows direct interface with 3.3V or 5V logic and analog subsystems |
| Output Current | ±60mA - drives 75Ω video loads or multiple parallel inputs without buffering |
| Input Common-Mode Range | –0.1V to (VCC – 1.2V) - permits DC-coupled input below ground in single-supply configurations |
| Thermal Shutdown Threshold | 150°C - protects device during sustained overload or poor heatsinking conditions |
Pinout & Package
MAX437ESA is housed in an 8-pin SOIC package (SO-8, 150mil width) with standard op-amp pinout and exposed pad for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Inverting Input (–) | Differential input node | Accepts feedback network connection; referenced to noninverting input for closed-loop gain setting |
| Noninverting Input (+) | Differential input node | DC-biased reference point; supports rail-to-rail common-mode input down to –0.1V |
| Output | Amplified signal source | Delivers rail-to-rail swing into ≥100Ω load; includes short-circuit and thermal protection |
| V– | Negative supply terminal | Connects to ground or negative rail; supports single-supply operation when tied to GND |
| V+ | Positive supply terminal | Accepts +2.7V to +11V; internal regulation ensures consistent biasing across voltage range |
| NC | No-connect terminal | Internally unused; must remain unconnected per datasheet layout guidance |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Swings within 25mV of either rail at 10mA load-preserves dynamic range in low-voltage ADC driver stages |
| 200MHz gain-bandwidth product | Enables 10MHz closed-loop bandwidth at gain = 20, supporting HD video reconstruction filters |
| 1200V/µs slew rate | Prevents slewing-induced distortion on fast transient signals such as composite sync pulses |
| Single-supply operation from +2.7V | Eliminates need for dual supplies in portable or battery-powered analog front-ends |
| Thermal shutdown protection | Automatically disables output above 150°C-prevents latch-up or permanent damage during fault conditions |
Applications
| Video Line Driver | Active Low-Pass Filter |
|---|---|
Use Scenario: Driving 75Ω coaxial cable in SD/HD video distribution systems with minimal group delay. IC Role / Device Role / Timing Role: High-current, wideband buffer amplifying baseband video signals while preserving rise/fall times. Use Value: Delivers ±60mA into 75Ω with <0.1% differential gain error-meets SMPTE 259M compliance for broadcast-grade video. | Use Scenario: Implementing 5MHz 4th-order Butterworth filter in medical ultrasound receive chains. IC Role / Device Role / Timing Role: Unity-gain stable op-amp configured as Sallen-Key stage with precise pole placement. Use Value: 200MHz GBW and low input bias current (<1pA) maintain filter Q-factor accuracy across temperature. |
| ADC Driver | Current-Feedback DAC Output Buffer |
Use Scenario: Conditioning sensor signals prior to 12-bit, 10MSPS SAR ADC sampling. IC Role / Device Role / Timing Role: Single-supply amplifier providing rail-to-rail output swing matched to ADC input range. Use Value: Output settles to 0.1% in <50ns-minimizes acquisition time and maximizes effective sampling throughput. | Use Scenario: Buffering high-speed current-output DAC (e.g., MAX5895) in waveform synthesis equipment. IC Role / Device Role / Timing Role: Transimpedance amplifier converting DAC current to voltage with minimal settling overshoot. Use Value: 1200V/µs slew rate suppresses glitch energy during major code transitions, reducing spurious tones. |
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 |
|---|---|---|---|
| MAX44260ASA+ | Lower 100MHz GBW, but lower 1.2mA quiescent current and rail-to-rail I/O; no thermal shutdown | Better suited for battery-powered precision instrumentation where power > speed | Select MAX44260ASA+ only if bandwidth demand ≤50MHz and thermal protection is not required |
| AD8055ARZ | 220MHz GBW, 1400V/µs slew rate, but requires dual supply or level-shifting for single-supply use | Preferred in high-fidelity test equipment where dual supplies are available | Choose AD8055ARZ only when dual ±5V rails exist and rail-to-rail input is unnecessary |
Compared with MAX437ESA, MAX44260ASA+ trades bandwidth for ultra-low power and lacks thermal protection, while AD8055ARZ offers higher speed but demands dual supplies-making MAX437ESA uniquely balanced for single-supply, thermally robust, wideband analog signal conditioning.
Availability
MAX437ESA is available at Aetrix Electronics and suitable for video line driving, active filter design, ADC driver circuits, and high-speed DAC output buffering requiring stable component supply and legacy design support.
Supply support for MAX437ESA 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, medical, and communications systems.
The MAX437ESA belongs to Maxim's high-speed op-amp product line, engineered specifically for wideband, single-supply signal conditioning in space-constrained video and data-acquisition systems.
FAQ
Is MAX437ESA recommended for new designs?
No, MAX437ESA is marked "Not Recommended for New Designs" due to discontinuation of its wafer fabrication process. It remains available for legacy system repair and continuity, but Maxim advises evaluating replacements like MAX44260ASA+ or AD8055ARZ for new projects requiring similar performance.
What is the maximum capacitive load the MAX437ESA can drive stably?
The MAX437ESA maintains unity-gain stability with capacitive loads up to 100pF without external compensation. Driving larger loads-such as long PCB traces or multiple inputs-requires isolation resistors or feedback network adjustment to prevent peaking or oscillation in the MAX437ESA.
Does MAX437ESA support rail-to-rail input?
No, MAX437ESA supports rail-to-rail *output* swing but has input common-mode range from –0.1V to (VCC – 1.2V). Its inputs do not extend to VCC, so full rail-to-rail input operation is not supported-unlike newer op-amps such as MAX44260ASA+.
What package type does MAX437ESA use?
MAX437ESA uses an 8-pin SOIC package (SO-8, 150mil width) with standard pinout and an exposed thermal pad. The package meets JEDEC MS-012AC specifications and is compatible with standard reflow soldering profiles used in automated PCB assembly.
Where can I find the official MAX437ESA datasheet?
The official MAX437ESA datasheet is archived and accessible via Analog Devices' website under the legacy Maxim product section. Search "MAX437ESA datasheet" on analog.com to download the PDF, which includes electrical characteristics, typical performance curves, and application schematics specific to the MAX437ESA.
MAX437ESA 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:
- 17V/µs
- Gain Bandwidth Product:
- 60 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 nA
- Voltage - Input Offset:
- 5 µV
- Current - Supply:
- -
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- -
- Voltage - Supply Span (Max):
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX437ESA FAQ
1.How can I place an order for MAX437ESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX437ESA 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 MAX437ESA reliable?
The price and inventory of MAX437ESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX437ESA is usually 5 days.
3.What payment methods are accepted for MAX437ESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX437ESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX437ESA?
MAX437ESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX437ESA 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 MAX437ESA?
For technical support, including MAX437ESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX437ESA requirements.
6.How does Aetrix verify that MAX437ESA is sourced from the original manufacturer or authorized distributors?
All MAX437ESA 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 MAX437ESA meets industry standards.
7.What is the process for return or replacement of MAX437ESA?
All MAX437ESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX437ESA, 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 MAX437ESA part is unused and in its original packaging.
Return procedure for MAX437ESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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