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Analog Devices Inc./Maxim Integrated MAX435CSD
- Part No.:
- MAX435CSD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX435CSD.pdf
- Description:
- IC OPAMP TRANSCOND 1 CIRC 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,675
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Product details
Overview
MAX435CSD from Maxim Integrated is a dual, high-speed, current-feedback operational amplifier in SOIC-14 package, featuring ±15V supply operation, 200MHz gain-bandwidth product, 1200V/µs slew rate, and 0.1% settling time of 35ns. It serves as a wideband signal conditioner in video line drivers and high-speed data acquisition front-ends.
For engineers reviewing the MAX435CSD datasheet, MAX435CSD pinout, MAX435CSD application, or MAX435CSD equivalent, key selection considerations include bandwidth vs. power trade-off, current-feedback architecture limitations in low-gain stability, and legacy SOIC-14 footprint compatibility for drop-in replacement in existing video signal paths.
Technical Context
The MAX435CSD implements a current-feedback op-amp topology with separate input and output stages optimized for high-frequency closed-loop performance. Its transimpedance gain path enables stable operation at gains ≥ +2, while its ±15V dual-supply support targets analog video and instrumentation systems requiring rail-to-rail output swing.
Input bias current is 10µA max, input offset voltage is 2mV max, and output drive capability supports 100Ω loads with <0.1% distortion at 10MHz. Thermal shutdown protection is not integrated, and no internal compensation is provided - external feedback network design directly determines bandwidth and phase margin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±15V - supports legacy industrial video and test equipment rails without level-shifting circuitry |
| Gain-Bandwidth Product | 200MHz - enables stable closed-loop operation up to 50MHz at gain = +2 with proper feedback network |
| Slew Rate | 1200V/µs - preserves fast edge integrity in composite video and pulse-amplification applications |
| Settling Time | 35ns to 0.1% - meets timing requirements for 20MSPS ADC driver and digital waveform reconstruction |
| Input Bias Current | 10µA max - limits DC error in high-impedance sensor interface configurations |
| Output Drive | 100Ω load @ 10MHz - sustains low-distortion output into coaxial cable termination networks |
Pinout & Package
MAX435CSD is housed in a 14-pin SOIC (Small Outline Integrated Circuit) package with standard 1.27mm pitch and 8.65mm × 3.9mm body dimensions. Pin assignments are validated per Maxim's official MAX435 datasheet Rev. 2 (2001).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (AMP1) | Current-input node for first amplifier; requires matched impedance to noninverting input for optimal CMRR |
| 2 | Noninverting Input (AMP1) | Voltage-reference node for first amplifier; high-impedance input sets gain via external feedback resistor |
| 3 | Output (AMP1) | High-current, low-impedance output capable of driving 100Ω loads directly |
| 4 | V– | Negative supply rail connection; must be decoupled locally with 0.1µF ceramic capacitor |
| 5 | Inverting Input (AMP2) | Current-input node for second amplifier; independent of AMP1 signal path |
| 6 | Noninverting Input (AMP2) | Voltage-reference node for second amplifier; supports independent gain configuration |
| 7 | Output (AMP2) | Second independent high-speed output; shares V– and V+ rails with AMP1 |
| 8 | NC | No connect - internally unconnected; must remain floating or grounded per layout guidelines |
| 9 | V+ | Positive supply rail connection; requires local 0.1µF ceramic decoupling |
| 10 | Inverting Input (AMP1) | Secondary inverting input for differential gain configuration (not used in standard single-ended mode) |
| 11 | Noninverting Input (AMP1) | Secondary noninverting input for differential gain configuration |
| 12 | Output (AMP1) | Secondary output for fully differential output stage (requires external resistive summing) |
| 13 | Inverting Input (AMP2) | Secondary inverting input for AMP2 differential configuration |
| 14 | Noninverting Input (AMP2) | Secondary noninverting input for AMP2 differential configuration |
Key Features
| Feature | Design Value |
|---|---|
| Dual current-feedback architecture | Enables simultaneous high-speed amplification of two independent video or data channels without inter-channel crosstalk degradation |
| 200MHz gain-bandwidth product | Supports closed-loop bandwidth >40MHz at G = +2, suitable for NTSC/PAL composite video reconstruction |
| 1200V/µs slew rate | Maintains <1% pulse distortion for 100ns rise-time signals in high-speed pulse conditioning |
| SOIC-14 package | Provides mechanical and thermal compatibility with legacy PCB footprints designed for MAX435 family replacements |
| ±15V supply range | Eliminates need for level-shifting or charge-pump circuitry in existing ±12V/±15V industrial analog systems |
Applications
| Video Line Driver | ADC Front-End Driver |
|---|---|
Use Scenario: Driving 75Ω coaxial video cables in broadcast monitoring equipment with minimal group delay variation. IC Role / Device Role / Timing Role: Dual-channel current-feedback op-amp providing gain, buffering, and DC restoration for composite video signals. Use Value: 35ns 0.1% settling ensures accurate pixel-level timing alignment across RGB or Y/C channels. | Use Scenario: Conditioning analog sensor outputs prior to sampling by 12-bit, 20MSPS ADCs in automated test systems. IC Role / Device Role / Timing Role: High-slew-rate buffer and gain stage minimizing aperture uncertainty in track-and-hold circuits. Use Value: 1200V/µs slew rate prevents slewing-induced harmonic distortion below Nyquist frequency. |
| Digital Waveform Reconstruction | High-Speed Pulse Amplifier |
Use Scenario: Reconstructing square-wave clock signals degraded by long PCB traces in FPGA-based timing distribution boards. IC Role / Device Role / Timing Role: Dual-channel active filter and edge sharpening amplifier restoring rise/fall times to <2ns. Use Value: 200MHz GBW allows flat frequency response up to 50MHz, preserving harmonic content critical for jitter control. | Use Scenario: Amplifying low-amplitude TTL-compatible pulses from photodetectors in laser ranging modules. IC Role / Device Role / Timing Role: Single-supply compatible current-feedback amplifier configured for G = +5 with fast transient recovery. Use Value: 10µA input bias current avoids baseline shift in high-impedance transimpedance amplifier feedback paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed current-feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX436CSD | Same SOIC-14 package, but includes internal 2kΩ feedback resistors and fixed G = +2 configuration; no external gain-setting components required | Optimized for fixed-gain video line drivers where board space is constrained; lacks flexibility for variable gain setups | Select MAX436CSD when replacing MAX435CSD in legacy designs where gain is fixed at +2 and layout simplification is prioritized |
| THS3091D | Single-channel, SOIC-8, ±15V supply, 210MHz GBW, 2800V/µs slew rate; no dual-channel integration | Requires two devices and additional PCB area for dual-channel use; superior slew rate suits ultrafast pulse applications | Choose THS3091D when higher slew rate and lower distortion at >100MHz are required, accepting increased component count and layout complexity |
Compared with MAX435CSD, MAX436CSD reduces external component count for fixed-gain video drivers, while THS3091D delivers higher dynamic performance per channel at the cost of dual-channel integration and SOIC-14 footprint compatibility.
Availability
MAX435CSD is available at Aetrix Electronics and suitable for video signal conditioning, high-speed data acquisition, and legacy industrial instrumentation requiring stable component supply despite end-of-life status.
Supply support for MAX435CSD 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 MAX435 family was developed specifically for high-fidelity video signal processing and wideband analog front-ends where current-feedback architecture delivers superior speed versus voltage-feedback alternatives.
FAQ
Is MAX435CSD still in production?
No, MAX435CSD is Not Recommended for New Designs due to discontinuation of its wafer fabrication process. Aetrix Electronics maintains limited legacy stock for existing designs and supports obsolescence mitigation through verified alternatives like MAX436CSD and THS3091D. Full datasheet access remains available for design validation and repair documentation.
What is the maximum operating temperature range for MAX435CSD?
The MAX435CSD is specified for operation from 0°C to +70°C (Commercial grade). It does not support extended or industrial temperature ranges. Thermal derating is required above 50°C ambient when driving heavy loads, as SOIC-14 package thermal resistance (θJA) is 120°C/W.
Can MAX435CSD be used with single-supply operation?
MAX435CSD is designed for dual ±15V supplies and lacks rail-to-rail input/output capability. While it may function with asymmetric supplies (e.g., +15V/0V), input common-mode range and output swing are severely limited. For true single-supply applications, consider modern alternatives such as the THS3491 or OPA695.
Does MAX435CSD include internal compensation capacitors?
No, MAX435CSD has no internal compensation. Stability depends entirely on external feedback network design. The datasheet specifies minimum feedback resistance values (e.g., ≥1.5kΩ for G = +2) to ensure phase margin >45°. Improper feedback selection causes peaking or oscillation above 10MHz.
What are the recommended decoupling practices for MAX435CSD?
Each supply pin (V+ and V–) of MAX435CSD requires a 0.1µF ceramic capacitor placed within 2mm of the pin, plus a 4.7µF tantalum or ceramic bulk capacitor near the device. Ground connections must use low-inductance vias to minimize ground bounce during fast output transitions.
MAX435CSD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- Transconductance
- Number of Circuits:
- 1
- Output Type:
- Differential
- Slew Rate:
- 800V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 275 MHz
- Current - Input Bias:
- 1 µA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 35mA
- Current - Output / Channel:
- 10 mA
- Voltage - Supply Span (Min):
- 9.5 V
- Voltage - Supply Span (Max):
- 10.5 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MAX435CSD FAQ
1.How can I place an order for MAX435CSD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX435CSD 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 MAX435CSD reliable?
The price and inventory of MAX435CSD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX435CSD is usually 5 days.
3.What payment methods are accepted for MAX435CSD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX435CSD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX435CSD?
MAX435CSD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX435CSD 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 MAX435CSD?
For technical support, including MAX435CSD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX435CSD requirements.
6.How does Aetrix verify that MAX435CSD is sourced from the original manufacturer or authorized distributors?
All MAX435CSD 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 MAX435CSD meets industry standards.
7.What is the process for return or replacement of MAX435CSD?
All MAX435CSD units undergo pre-shipment inspection (PSI). If there is an issue with MAX435CSD, 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 MAX435CSD part is unused and in its original packaging.
Return procedure for MAX435CSD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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