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Analog Devices Inc./Maxim Integrated MAX469CWE-T
- Part No.:
- MAX469CWE-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Video Amps and Modules
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX469CWE-T.pdf
- Description:
- TWO-CHANNEL TRIPLE VIDEO BUFFER
- Quantity:
- Payment:
- Shipping:
Inventory:175
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Product details
Overview
MAX469CWE-T from Maxim Integrated is a triple-channel, unity-gain-stable video buffer IC with 2V/V internal amplifier gain, optimized for RGB video signal conditioning and 75Ω back-terminated coaxial cable driving. It delivers ±2V output swing into 75Ω, 90MHz bandwidth, 0.01% differential gain error, and 20ns channel switching time, enabling broadcast-quality color video overlay and medical imaging systems.
For engineers reviewing the MAX469CWE-T datasheet, MAX469CWE-T pinout, MAX469CWE-T application, or MAX469CWE-T equivalent, this page provides verified specifications, package mapping to 24-pin wide SO (SOIC-W), functional context for RGB buffer deployment, and validated alternative options for 75Ω video signal path design.
Technical Context
The MAX469CWE-T integrates three independent high-speed amplifiers, each internally configured for 2V/V closed-loop gain to achieve unity gain at the output of a 75Ω back-terminated coaxial cable. Its bipolar construction yields 5pF input capacitance (on/off), minimizing source impedance interaction and preserving phase integrity across RGB channels.
Channel selection is absent-unlike switch variants (e.g., MAX465), the MAX469 operates exclusively as a triple video buffer with no analog multiplexing logic. Digital control pins (EN, LE, CS, A0) are present but function only in disable/enable mode; all three outputs remain active unless globally disabled via EN.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Configuration | Fixed 2V/V internal amplifier gain; delivers unity gain at 75Ω cable output with back-termination. |
| Bandwidth | 90MHz at 2V/V gain-supports full NTSC/PAL/RGB video bandwidth without roll-off. |
| Differential Gain Error | 0.01% - preserves color fidelity in broadcast-grade composite and RGB systems. |
| Output Swing | ±2V into 75Ω - meets SMPTE/EBU line-driving requirements for professional video equipment. |
| Slew Rate | 300V/µs - ensures distortion-free reproduction of fast video transients (e.g., sync pulses, edge transitions). |
| Input Capacitance | 5pF (channel on or off) - eliminates impedance discontinuity during signal routing, critical for multi-source RGB boards. |
| Supply Voltage | ±4.75V to ±5.25V - compatible with standard dual-rail video power domains; supports operation up to ±5V. |
Pinout & Package
MAX469CWE-T is housed in a 24-pin wide SOIC (SOIC-W) package with exposed thermal pad (pin 24 = V−, thermally connected). Pin layout follows the MAX463–MAX470 family standard for triple-buffer variants: three matched analog input/output pairs, shared power/ground, and digital control interface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN0, IN1, IN2 | Analog Input 0–2 | High-impedance (300kΩ) buffered inputs for R/G/B signals; 5pF capacitance minimizes source loading. |
| OUT0, OUT1, OUT2 | Analog Output 0–2 | Low-output-impedance (5Ω) drivers capable of ±2V into 75Ω; support paralleling for higher current. |
| V+, V− | Positive/Negative Supply | ±5V rails; V− pins (4,5,12,13) serve dual role as power and thermal conduction paths. |
| GND (pins 2,7,8,9,15) | Analog Ground | AC-grounded pins surround inputs to suppress crosstalk; must connect to low-impedance ground plane. |
| EN | Buffer Enable | TTL-compatible input; low = enable outputs, high = high-Z disable (1kΩ typical disabled resistance). |
| LE, CS, A0 | Digital Control Interface | Retained for compatibility; unused in buffer-only mode but required for proper disable timing per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Back-terminated coaxial drive | Direct 75Ω cable driving with unity gain at load-eliminates external gain-setting resistors and matching networks. |
| Ultra-low differential phase error | 0.03° - prevents hue shifts in color video, validated per Tektronix VM700 test methodology. |
| High-Z disable mode | 1kΩ typical disabled output resistance enables safe paralleling of up to two MAX469 units without signal degradation. |
| Low-noise video amplification | 20nV/√Hz input noise density - preserves SNR in high-resolution RGB and medical imaging signal chains. |
| Thermally enhanced package | Exposed V− pad in SOIC-W improves thermal dissipation under sustained ±80mA supply current per channel. |
Applications
| RGB Medical Imaging | RGB Color Video Security Systems |
|---|---|
Use Scenario: High-fidelity transmission of real-time endoscopic or ultrasound RGB video over 75Ω coaxial cables to display processors. IC Role / Device Role / Timing Role: Triple video buffer conditioning R/G/B baseband signals prior to encoding or long-haul transmission. Use Value: 0.01%/0.03° differential gain/phase error ensures accurate tissue color representation and diagnostic reliability. |
Use Scenario: Centralized switching and distribution of multiple camera feeds to monitoring stations with minimal color distortion. IC Role / Device Role / Timing Role: Buffering RGB outputs from video matrix switchers before feeding to recording or display subsystems. Use Value: 90MHz bandwidth and ±2V swing maintain full HD resolution and chroma integrity across distributed security infrastructure. |
| RGB Color Video Overlay Editors | Broadcast-Quality Color-Signal Multiplexing |
Use Scenario: Real-time compositing of graphics overlays onto live RGB video streams in broadcast production switchers. IC Role / Device Role / Timing Role: Driving RGB signal paths between FPGA-based keyers and output DAC stages with sub-ns timing alignment. Use Value: 5pF input capacitance and matched trace-length support preserve inter-channel phase coherence for pixel-accurate overlay registration. |
Use Scenario: Consolidating RGB outputs from multiple sources (cameras, CG generators) into a single high-fidelity output bus. IC Role / Device Role / Timing Role: Final-stage buffering before multiplexer output stage to ensure consistent drive strength and impedance matching. Use Value: 300V/µs slew rate and 20ns settling time prevent ghosting or smearing during rapid source switching events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple video buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX467CWE-T | Unity-gain (1V/V) configuration; ±2.5V swing into 150Ω; 100MHz bandwidth. | Optimized for 150Ω loads (e.g., un-terminated RGB lines); not suitable for direct 75Ω back-terminated drive. | Select MAX467CWE-T only when driving unterminated or high-Z video paths where gain-of-two is unnecessary. |
| THS7374IPWPR | Quad-channel, 1V/V gain, 100MHz bandwidth, 3.3V/5V single-supply operation. | Designed for modern low-voltage RGB interfaces (e.g., laptop displays); lacks ±5V dual-rail support and back-termination optimization. | Choose THS7374IPWPR for cost-sensitive, single-supply embedded RGB systems-not for broadcast or medical dual-rail designs. |
Compared with MAX467CWE-T and THS7374IPWPR, the MAX469CWE-T uniquely combines 2V/V gain architecture, ±5V operation, and 75Ω back-termination compliance-making it the only drop-in solution for legacy and professional RGB video equipment requiring SMPTE-level signal integrity.
Availability
MAX469CWE-T is available at Aetrix Electronics and suitable for RGB medical imaging, broadcast-quality video multiplexing, and color video security systems requiring stable component supply and long-term industrial availability.
Supply support for MAX469CWE-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 and mixed-signal ICs for precision signal conditioning, power management, and interface applications.
The MAX469 belongs to the MAX463–MAX470 family of video switches and buffers, designed specifically for broadcast-grade RGB and composite video signal routing, amplification, and termination-critical applications.
FAQ
What is the operating temperature range for MAX469CWE-T?
The MAX469CWE-T is specified for 0°C to +70°C ambient operation (Commercial grade), as indicated by the 'C' suffix in the part number. This aligns with the MAX469CWE-T's qualification per JEDEC standards for industrial video equipment deployed in controlled environments such as broadcast studios and medical imaging consoles.
Does MAX469CWE-T support pin-compatible replacement with MAX465CWE-T?
No. While both are 24-pin SOIC-W devices in the same family, MAX465CWE-T is a triple SPDT video switch with channel-select logic (A0/CS/LE), whereas MAX469CWE-T is a triple buffer with no switching functionality. Their pinouts differ in analog I/O assignment and digital control usage-direct replacement would require PCB redesign.
Can MAX469CWE-T drive 50Ω coaxial cables?
Yes. The MAX469CWE-T drives 50Ω and 75Ω back-terminated coaxial cables directly, delivering ±2.5V into 150Ω (equivalent to 75Ω back-terminated) and maintaining full 90MHz bandwidth. Its 5Ω output impedance ensures minimal mismatch loss on 50Ω lines when used with appropriate termination.
What is the disabled output resistance of MAX469CWE-T?
The MAX469CWE-T exhibits a typical disabled output resistance of 1kΩ when EN is high, as confirmed in the Electrical Characteristics table for MAX465/MAX466/MAX469/MAX470. This value enables limited paralleling (up to two units) without significant signal attenuation in shared-bus video architectures.
Is external gain-setting required for MAX469CWE-T in 75Ω applications?
No. The MAX469CWE-T features internally fixed 2V/V amplifier gain, engineered to deliver unity gain at the far end of a 75Ω back-terminated coaxial cable. No external resistors or feedback networks are needed-simplifying layout and eliminating gain drift due to component tolerance.
MAX469CWE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Applications:
- Video
- Output Type:
- Single-Ended
- Number of Circuits:
- 3
- -3db Bandwidth:
- 90 MHz
- Slew Rate:
- 300V/µs
- Current - Supply:
- 80 mA
- Current - Output / Channel:
- -
- Voltage - Supply, Single/Dual (±):
- ±4.75V ~ 5.25V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-SOIC
MAX469CWE-T FAQ
1.How can I place an order for MAX469CWE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX469CWE-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 MAX469CWE-T reliable?
The price and inventory of MAX469CWE-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX469CWE-T is usually 5 days.
3.What payment methods are accepted for MAX469CWE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX469CWE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX469CWE-T?
MAX469CWE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX469CWE-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 MAX469CWE-T?
For technical support, including MAX469CWE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX469CWE-T requirements.
6.How does Aetrix verify that MAX469CWE-T is sourced from the original manufacturer or authorized distributors?
All MAX469CWE-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 MAX469CWE-T meets industry standards.
7.What is the process for return or replacement of MAX469CWE-T?
All MAX469CWE-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX469CWE-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 MAX469CWE-T part is unused and in its original packaging.
Return procedure for MAX469CWE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX469CWE-T Tags
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LT6552CS8#PBF
Analog Devices Inc.
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LT6205IS5#TRPBF
Analog Devices Inc.
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LT6206IMS8#TRPBF
Analog Devices Inc.
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LT6552IS8#PBF
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LT1252CS8#PBF
Analog Devices Inc.
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AD818ARZ-REEL7
Analog Devices Inc.
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MAX4310EUA+
Analog Devices Inc./Maxim Integrated
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AD829ARZ
Analog Devices Inc.
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AD810ARZ
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MAX4310ESA+
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MAX4313ESA+
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