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Analog Devices Inc./Maxim Integrated MAX408ACPA-2
- Part No.:
- MAX408ACPA-2
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX408ACPA-2.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,378
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Product details
Overview
MAX408ACPA-2 from Maxim Integrated is a single high-speed operational amplifier optimized for video-range signal amplification and fast data conversion systems, featuring 100MHz gain bandwidth, 90V/µs slew rate, ±0.1% settling in 150ns, and ±3.5V output swing into 2kΩ at ±5V supply. It operates in non-inverting gain ≥3 configurations and drives 75Ω back-terminated video lines with 5VPP signals.
For engineers reviewing the MAX408ACPA-2 datasheet, MAX408ACPA-2 pinout, MAX408ACPA-2 application, or MAX408ACPA-2 equivalent, key selection considerations include its 150ns ±0.1% settling time, 35nA input offset current, trimmable offset voltage, ±4V minimum supply operation, and compatibility with capacitive loads up to 50pF while maintaining 50°–60° phase margin.
Technical Context
The MAX408ACPA-2 employs internally compensated feedback architecture stable for ACL ≥3, with a dominant-pole open-loop response exhibiting 35MHz 10dB crossover and 50°–60° phase margin even with 50pF capacitive load. Its input stage uses bipolar technology enabling low input offset current (35nA typical) and wide common-mode range (within 1.5V of V+ and 0.5V of V−).
Output stage delivers high current (±10mA short-circuit capable) to drive large capacitive loads at high speed without oscillation under specified layout conditions-requiring ground plane, 0.1µF local bypassing, and minimized trace lengths. Input capacitance totals ≈5pF (3pF common-mode + 2pF differential), necessitating optional 2.5pF feedback capacitor for pole cancellation in critical applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 100MHz - supports stable closed-loop gain of 3 at >30MHz bandwidth |
| Slew Rate | 90V/µs - enables full-scale 6VPP output transitions in <67ns |
| Settling Time | 150ns to ±0.1% - meets timing requirements in 12-bit DAC buffer and waveform generator stages |
| Input Offset Current | 35nA typical - minimizes error in high-impedance sensor interface or photodiode transimpedance circuits |
| Output Voltage Swing | ±3.5V into 2kΩ at ±5V supply - delivers full 7VPP signal headroom for video line driving |
| Supply Voltage Range | ±4V minimum - allows operation from ±4.5V or ±5V rails without derating |
| Common-Mode Input Range | Within 1.5V of V+, 0.5V of V− - accommodates rail-to-rail input signals in single-supply derived systems |
Pinout & Package
MAX408ACPA-2 is housed in an 8-pin plastic DIP package (0.300" width) with through-hole mounting and standard JEDEC MO-001AC outline. Pin 1 is top-left corner when notch faces upward.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | BALANCE | Offset null connection for external trim potentiometer (pins 1 and 5 form null port) |
| 2 | IN− | Inverting input terminal - accepts feedback network and signal inversion path |
| 3 | V− | Negative supply rail connection - must be decoupled locally with 0.1µF capacitor |
| 4 | OUT | Amplifier output - capable of ±10mA short-circuit current and driving 75Ω transmission lines |
| 5 | BALANCE | Offset null connection - paired with pin 1 for VOS trimming without affecting AC performance |
| 6 | IN+ | Non-inverting input terminal - high-impedance node (4MΩ common-mode, 3MΩ differential resistance) |
| 7 | V+ | Positive supply rail connection - requires local 0.1µF bypass to ground |
| 8 | N.C. | No internal connection - left unconnected; not bonded or used in die construction |
Key Features
| Feature | Design Value |
|---|---|
| Internally compensated stability | Guaranteed phase margin ≥50° for ACL ≥3, eliminating need for external compensation components |
| High output drive capability | Drives 75Ω back-terminated video lines at 5VPP with minimal distortion and no peaking |
| Trimmable input offset voltage | Supports ±15mV nulling range via external 10kΩ potentiometer across pins 1 and 5 |
| Low input bias current | 650nA max at +25°C - preserves accuracy in high-source-impedance signal conditioning paths |
| Short-circuit protected output | Withstands indefinite output short to either rail without damage or latch-up |
Applications
| Video Amplifiers | Test Equipment |
|---|---|
Use Scenario: Amplifying composite video signals in broadcast-grade distribution amplifiers before splitting to multiple monitors or recording devices. IC Role / Device Role / Timing Role: Buffer and level-shift video signal while preserving rise/fall times below 7ns and minimizing group delay variation across 4.8MHz full-power bandwidth. Use Value: Delivers 5VPP into 75Ω with <0.1% differential gain/phase error and 90dB crosstalk isolation in multi-channel systems. | Use Scenario: Serving as active filter and pulse amplifier in automated test equipment (ATE) stimulus modules generating calibrated step and square waveforms. IC Role / Device Role / Timing Role: High-fidelity pulse shaping element with 150ns ±0.1% settling ensuring accurate edge placement in 100MHz digital pattern generators. Use Value: Enables sub-100ps jitter accumulation over 1000-cycle sequences due to consistent 90V/µs slew rate and minimal overshoot (<16%). |
| Waveform Generators | Pulse Amplifiers |
Use Scenario: Output stage in arbitrary waveform generators (AWG) producing precision sine, triangle, and sawtooth signals up to 10MHz fundamental frequency. IC Role / Device Role / Timing Role: Final gain stage providing programmable amplitude scaling with DC-coupled output and low harmonic distortion (<0.05% THD+N at 1MHz). Use Value: Maintains spectral purity via 100MHz GBW and 12µVRMS input noise, limiting spurious content in 12-bit DAC reconstruction paths. | Use Scenario: Boosting low-energy logic pulses from FPGA I/O or microcontroller GPIO to drive high-capacitance loads such as coaxial cables or relay coils. IC Role / Device Role / Timing Role: Fast transient amplifier delivering 5V step responses with <200ns total propagation + settling latency. Use Value: Achieves reliable 75Ω line driving at 5VPP with no external termination required, reducing BOM count and PCB area. |
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 |
|---|---|---|---|
| LMH6629MA/NOPB | Higher 1.5GHz GBW but fixed 5V supply only; no dual-rail support; 1.2mA quiescent current vs. 10mA for MAX408ACPA-2 | Optimized for single-supply 5V systems; lacks trimmable offset and ±4V min supply flexibility | Select LMH6629MA/NOPB only when GHz-range bandwidth is mandatory and dual-supply operation is unnecessary |
| AD8001ARZ | Lower 800MHz GBW but superior 2500V/µs slew rate; 2.5mA IS vs. 10mA; no BALANCE pins for offset nulling | Better suited for ultra-fast pulse amplification where settling <5ns is required, but less ideal for precision video gain stages | Choose AD8001ARZ when nanosecond-scale transient fidelity outweighs DC accuracy and offset adjustability needs |
Compared with LMH6629MA/NOPB and AD8001ARZ, the MAX408ACPA-2 provides unique trade-offs: lower bandwidth but guaranteed stability at ACL ≥3, trimmable offset for calibration-critical systems, dual-supply flexibility down to ±4V, and proven 75Ω video line drive capability-making it irreplaceable in legacy analog video infrastructure where long-term supply continuity and design validation are prioritized.
Availability
MAX408ACPA-2 is available at Aetrix Electronics and suitable for video distribution, test equipment signal conditioning, and pulse amplification applications requiring stable component supply and long-lifecycle support.
Supply support for MAX408ACPA-2 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 computing applications.
The MAX408 family was developed specifically for high-fidelity analog signal processing in video, instrumentation, and fast data acquisition systems where speed, settling accuracy, and output drive capability are jointly critical.
FAQ
Is MAX408ACPA-2 still in production and supported by Maxim?
MAX408ACPA-2 is Not Recommended for New Designs per Maxim's official documentation due to discontinuation of its wafer process. However, Aetrix Electronics maintains active inventory and offers traceable, fully tested units for legacy system repair and continuity programs. Technical support remains accessible through Analog Devices' archived resources and Aetrix engineering assistance.
What is the maximum capacitive load the MAX408ACPA-2 can drive stably?
The MAX408ACPA-2 is characterized for stable operation with up to 50pF capacitive load while maintaining ≥50° phase margin at ACL ≥3. Driving larger loads (e.g., >100pF) requires external compensation-such as a 2.5pF feedback capacitor-to neutralize the ≈5pF input capacitance pole and prevent peaking above 70MHz.
Can the MAX408ACPA-2 operate from a single +10V supply?
No-the MAX408ACPA-2 requires dual supplies (e.g., ±4V to ±6V). Its input common-mode range extends within 1.5V of V+ and 0.5V of V−, and output swing is specified only for symmetric rails. Single-supply operation would violate input/output voltage limits and cause clipping or malfunction.
Does the MAX408ACPA-2 have built-in ESD protection on its inputs?
The MAX408ACPA-2 includes standard bipolar-input ESD protection diodes rated to ±2kV HBM per MIL-STD-883 Method 3015.7. These diodes clamp transient overvoltage but require external series current-limiting resistors if exposed to sustained overvoltage beyond absolute maximum ratings (e.g., >±9V differential input).
How does the BALANCE pin configuration affect offset nulling in MAX408ACPA-2?
The MAX408ACPA-2 uses pins 1 and 5 as a dedicated offset null port: connecting a 10kΩ potentiometer between them and tying the wiper to V− adjusts input offset voltage across ±15mV. This method leaves AC performance unaffected because neither pin connects to the signal path-confirmed in Maxim's Figure 2 schematic and application note.
MAX408ACPA-2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 90V/µs
- Gain Bandwidth Product:
- 100 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 650 nA
- Voltage - Input Offset:
- 5 mV
- Current - Supply:
- 7mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 8 V
- Voltage - Supply Span (Max):
- 8 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
MAX408ACPA-2 FAQ
1.How can I place an order for MAX408ACPA-2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX408ACPA-2 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 MAX408ACPA-2 reliable?
The price and inventory of MAX408ACPA-2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX408ACPA-2 is usually 5 days.
3.What payment methods are accepted for MAX408ACPA-2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX408ACPA-2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX408ACPA-2?
MAX408ACPA-2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX408ACPA-2 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 MAX408ACPA-2?
For technical support, including MAX408ACPA-2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX408ACPA-2 requirements.
6.How does Aetrix verify that MAX408ACPA-2 is sourced from the original manufacturer or authorized distributors?
All MAX408ACPA-2 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 MAX408ACPA-2 meets industry standards.
7.What is the process for return or replacement of MAX408ACPA-2?
All MAX408ACPA-2 units undergo pre-shipment inspection (PSI). If there is an issue with MAX408ACPA-2, 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 MAX408ACPA-2 part is unused and in its original packaging.
Return procedure for MAX408ACPA-2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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