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Analog Devices Inc./Maxim Integrated MAX465CWG
- Part No.:
- MAX465CWG
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 24-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX465CWG.pdf
- Description:
- IC SWITCH SPDT X 1 25OHM 24DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,776
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Product details
Overview
The MAX465CWG from Maxim Integrated is a triple-channel, 2-pole video switch and buffer with 2V/V fixed-gain amplifiers optimized for RGB color video routing in broadcast- and medical-grade systems. It delivers ±2V output swing into 75Ω, 90MHz bandwidth, 0.01% differential gain error, and 20ns channel switching time under ±5V supplies.
For engineers reviewing the MAX465CWG datasheet, MAX465CWG pinout, MAX465CWG application, or MAX465CWG equivalent, this device is selected for high-fidelity RGB multiplexing where low crosstalk (<60dB), minimal phase distortion (0.03°), and direct 75Ω coaxial cable drive capability are critical design requirements.
Technical Context
The MAX465CWG integrates three independent 2V/V gain amplifier-switch channels in a single monolithic bipolar IC. Each channel features a 5pF input capacitance (on/off), 250kΩ disabled output resistance, and logic-controlled selection via TTL-compatible A0, CS, EN, and LE inputs with latchable digital interface timing.
Its internal 2V/V closed-loop gain compensates for 50% attenuation in back-terminated 75Ω coaxial configurations, delivering unity gain at the cable end. The device operates across ±4.75V to ±5.25V supplies and supports simultaneous disable of all outputs with high-Z state and reduced power consumption.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Voltage Gain | 2V/V fixed internal gain - enables unity gain at 75Ω back-terminated coax output |
| -3dB Bandwidth | 90MHz - supports full HD RGB signal bandwidth without roll-off |
| Differential Gain Error | 0.01% - preserves color fidelity in broadcast-quality video systems |
| Channel Switching Time | 20ns - ensures glitch-free RGB source transitions in real-time overlay editors |
| Input Capacitance | 5pF (on or off) - maintains consistent source loading and minimizes switching transients |
| Output Swing | ±2V into 75Ω - meets SMPTE/EBU line-driving requirements for RGB distribution |
| Crosstalk | >60dB - prevents color bleed between R/G/B channels in security and medical imaging |
Pinout & Package
MAX465CWG is housed in a 24-pin wide SOIC (SO) package with exposed thermal pad on V− pins for enhanced power dissipation. Pin layout follows standard RGB triple-switch topology with dedicated analog ground shielding around all inputs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN0A, IN1A, IN2A | Channel A analog inputs (R/G/B) | Three independent RGB signal inputs for first source |
| IN0B, IN1B, IN2B | Channel B analog inputs (R/G/B) | Three independent RGB signal inputs for second source |
| OUT0, OUT1, OUT2 | Buffered analog outputs (R/G/B) | 2V/V gain outputs driving 75Ω coax directly |
| A0 | Channel select control | TTL input selecting A (low) or B (high) source per channel |
| EN | Buffer enable/disable | Active-low control enabling/disabling all three output buffers |
| CS | Chip-select latch | Controls transparency/latching of A0 and EN registers |
| LE | Latch-enable | Determines whether EN latches on CS edge or remains transparent |
| V+, V− | Power supply rails | ±5V dual supplies; multiple V− pins provide thermal path and low-noise grounding |
| GND | Analog ground | AC-ground pins isolate inputs and minimize parasitic coupling |
Key Features
| Feature | Design Value |
|---|---|
| 2V/V fixed-gain amplifiers | Enables unity gain at 75Ω back-terminated coax output without external feedback components |
| 20ns channel switching time | Supports real-time RGB source switching in video overlay editors without visible artifacts |
| 5pF input capacitance (on/off) | Eliminates load discontinuity during switching - critical for stable high-frequency video signals |
| Logic disable mode with high-Z outputs | Reduces system power by >50% and allows safe paralleling of multiple MAX465CWG devices |
| >60dB adjacent channel crosstalk | Prevents R→G→B signal leakage in RGB security camera matrix systems |
| ±2V output swing into 75Ω | Meets broadcast-level signal level standards for RGB distribution over coaxial infrastructure |
Applications
| RGB Multiplexing | RGB Color Video Overlay Editors |
|---|---|
Use Scenario: Routing three independent RGB sources (e.g., camera, graphics, playback) to a single display or recorder. IC Role / Device Role / Timing Role: Triple 2-pole analog switch with integrated 2V/V buffers performing source selection and impedance matching. Use Value: Eliminates external gain stages and termination resistors while maintaining <0.03° phase accuracy across R/G/B paths. |
Use Scenario: Real-time compositing of live video with computer-generated graphics in broadcast production. IC Role / Device Role / Timing Role: Low-latency RGB channel selector enabling sub-20ns source transitions without sync loss. Use Value: Preserves pixel-level timing integrity and color fidelity during rapid layer switching in overlay engines. |
| RGB Medical Imaging | RGB Color Video Security Systems |
Use Scenario: Distributing high-resolution RGB outputs from MRI/CT scanners to diagnostic monitors and PACS archives. IC Role / Device Role / Timing Role: Precision video buffer and switch ensuring differential gain error ≤0.01% for diagnostic grayscale accuracy. Use Value: Maintains DICOM-compliant luminance linearity and chromaticity stability across multi-monitor deployments. |
Use Scenario: Centralized switching of RGB feeds from multiple HD security cameras to monitoring walls and recording servers. IC Role / Device Role / Timing Role: High-isolation RGB multiplexer preventing cross-camera signal bleed in matrix switchers. Use Value: Delivers >60dB inter-channel isolation to avoid false color artifacts in forensic video analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RGB video switch and buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX463CWG | Unity-gain (1V/V) amplifiers; same pinout and switching specs | Requires external gain stage for 75Ω back-termination; lower output swing (±2.5V into 150Ω only) | Select when system uses 150Ω termination or requires minimal gain adjustment |
| MAX466CWG | Quad-channel (4× RGB) version in 28-pin SO; 2V/V gain; identical electrical specs | Supports four RGB sources instead of three; larger footprint and higher supply current | Select when expanding to quad-source RGB routing without redesigning board layout topology |
Compared with MAX463CWG and MAX466CWG, the MAX465CWG uniquely balances triple-channel density, 2V/V coax optimization, and 24-pin SO packaging-making it the optimal choice for compact, high-fidelity RGB multiplexers where 75Ω back-termination is mandatory and fourth channel is unnecessary.
Availability
MAX465CWG is available at Aetrix Electronics and suitable for RGB multiplexing, medical imaging equipment, and broadcast video routing requiring stable component supply across industrial temperature ranges and long-lifecycle programs.
Supply support for MAX465CWG 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 and mixed-signal ICs for demanding signal-chain applications, with emphasis on performance, integration, and reliability.
The MAX465CWG belongs to the MAX463–MAX470 family of RGB video switches and buffers, engineered specifically for broadcast-grade color fidelity, low crosstalk, and direct coaxial cable drive in professional video infrastructure.
FAQ
What is the operating supply voltage range for the MAX465CWG?
The MAX465CWG operates from ±4.75V to ±5.25V dual supplies, with absolute maximum ratings up to ±5.25V. It is specified for ±5V operation and supports input signals up to ±2.5V when driving 150Ω loads - a key requirement for compatibility with standard video signal levels in the MAX465CWG's target applications.
Does the MAX465CWG support back-terminated 75Ω coaxial cable drive?
Yes, the MAX465CWG is explicitly designed for 75Ω back-terminated coaxial cable drive. Its internal 2V/V gain compensates for the 50% attenuation caused by the 75Ω termination resistor, delivering unity gain at the far end of the cable - a core specification confirmed in the MAX465CWG datasheet's "Driving Coaxial Cable" section.
What is the disabled output resistance of the MAX465CWG?
The MAX465CWG exhibits a typical disabled output resistance of 1kΩ, as verified in the Electrical Characteristics table under "Output Resistance, Disabled Mode" (ROUTD). This value is distinct from the 250kΩ seen in unity-gain variants like MAX463CWG and is critical for safe paralleling in multi-device RGB mux architectures.
Can multiple MAX465CWG devices be paralleled for larger RGB networks?
Yes, the MAX465CWG supports output paralleling using its logic disable mode. When disabled, outputs enter high-Z state with 1kΩ resistance, allowing up to two MAX465CWG devices to be safely paralleled with 22Ω isolation resistors - a configuration validated in the "Paralleling MAX466s" application note applicable to MAX465CWG due to identical gain and disable characteristics.
What is the differential phase error specification for the MAX465CWG?
The MAX465CWG has a differential phase error of 0.03°, measured per Note 3 in the datasheet using a 3.58MHz sine wave superimposed on a linear ramp into a 150Ω load. This value is guaranteed across the 0°C to +70°C operating range and is essential for broadcast-quality color reproduction in RGB systems using the MAX465CWG.
MAX465CWG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 25Ohm
- Channel-to-Channel Matching (ΔRon):
- 400mOhm
- Voltage - Supply, Single (V+):
- 4.75V ~ 5.25V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- 225MHz
- Charge Injection:
- 1.5pC
- Channel Capacitance (CS(off), CD(off)):
- 6pF, 6pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -76dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 24-PDIP
MAX465CWG FAQ
1.How can I place an order for MAX465CWG through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX465CWG 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 MAX465CWG reliable?
The price and inventory of MAX465CWG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX465CWG is usually 5 days.
3.What payment methods are accepted for MAX465CWG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX465CWG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX465CWG?
MAX465CWG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX465CWG 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 MAX465CWG?
For technical support, including MAX465CWG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX465CWG requirements.
6.How does Aetrix verify that MAX465CWG is sourced from the original manufacturer or authorized distributors?
All MAX465CWG 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 MAX465CWG meets industry standards.
7.What is the process for return or replacement of MAX465CWG?
All MAX465CWG units undergo pre-shipment inspection (PSI). If there is an issue with MAX465CWG, 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 MAX465CWG part is unused and in its original packaging.
Return procedure for MAX465CWG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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