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Analog Devices Inc./Maxim Integrated MAX4565CWP+
- Part No.:
- MAX4565CWP+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog Switches - Special Purpose
- Package:
- -
- Datasheet:
-
MAX4565CWP+.pdf
- Description:
- INTEGRATED CIRCUIT
- Quantity:
- Payment:
- Shipping:
Inventory:3,120
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Product details
Overview
The MAX4565CWP+ from Maxim Integrated is a quad SPST analog switch IC designed for high-frequency RF and video signal routing in 50Ω and 75Ω systems. It features four normally open switches in T-configuration, rail-to-rail bidirectional signal handling up to ±3.5V with ±5V supplies, 60Ω max on-resistance, <2.5Ω matching between channels, and -83dB off-isolation at 10MHz - enabling precise signal switching in test equipment and video infrastructure.
For engineers reviewing the MAX4565CWP+ datasheet, MAX4565CWP+ pinout, MAX4565CWP+ application, or MAX4565CWP+ equivalent, this device supports DC–350MHz bandwidth, low charge injection (25pC), sub-100ns switching times, and TTL/CMOS-compatible logic inputs - critical for high-fidelity RF switching, ATE channel multiplexing, and broadcast-grade video routing where crosstalk and insertion loss must be tightly controlled.
Technical Context
The MAX4565CWP+ implements a true "T-switch" architecture: each channel uses two series N/P-channel MOSFETs plus a shunt N-MOSFET at the junction, actively grounding capacitive coupling during OFF state to achieve -83dB isolation and -87dB crosstalk at 10MHz. This topology enables flat on-resistance (±2Ω over full signal range) and exceptional bandwidth retention beyond 300MHz in 50Ω systems.
It operates from dual ±2.7V to ±6V or single +2.7V to +12V supplies, with independent GND_ pins per switch for optimized RF grounding. Logic-level translation circuitry ensures 0.8V/2.4V thresholds across supply voltages, supporting interoperability with both TTL and CMOS drivers without external level shifters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Signal Bandwidth | DC to 350MHz (-3dB), verified in 50Ω systems - supports full HD video and wideband RF up to UHF. |
| On-Resistance (RON) | 60Ω max at ±5V - ensures minimal insertion loss (<2.5dB at 100MHz) and predictable impedance matching. |
| RON Matching | ≤2.5Ω max between channels - critical for multi-channel synchronization in ATE and phased-array video routing. |
| Off Isolation | -83dB at 10MHz - suppresses leakage between inactive paths in high-density RF switching matrices. |
| Crosstalk | -87dB at 10MHz - prevents signal bleed between adjacent switched channels in video distribution. |
| Charge Injection | 25pC max - limits voltage glitch on sampled nodes in precision data acquisition front-ends. |
| Supply Range | ±2.7V to ±6V dual or +2.7V to +12V single - enables flexible integration into legacy ±5V and modern low-voltage systems. |
Pinout & Package
MAX4565CWP+ is housed in a 20-pin Wide SO (SOIC-W) package with exposed thermal pad (package code W). Pin assignments follow the MAX4565-specific layout: four independent COM_/NO_ switch pairs, dedicated GND_ pins per switch (GND1–GND4), plus two additional isolation grounds (GND5, GND6), dual V+ and V- supply pins, and four IN_ control inputs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | Digital Control Input | TTL/CMOS-compatible logic inputs driving individual SPST switches; threshold 0.8V/2.4V at V+ = 5V. |
| COM1–COM4 | Analog Switch Common | Bidirectional signal terminal - connects to source or load depending on system topology. |
| NO1–NO4 | Analog Switch Normally Open | Open-circuit when INx = 0; completes path to COMx when INx = 1 - no internal NC connection. |
| GND1–GND4 | Per-Switch RF Ground | Isolated ground pins for each switch; must connect to common ground plane to maintain high-frequency isolation. |
| GND5, GND6 | Isolation Enhancement Grounds | Extra RF grounds on MAX4565 only; mandatory connection to ground plane to achieve -83dB off-isolation. |
| V+, V- | Analog Power Supplies | Drive internal CMOS switches; set analog signal swing limits (e.g., ±3.5V with ±5V supplies). |
Key Features
| Feature | Design Value |
|---|---|
| T-switch architecture | Three-transistor configuration per channel delivers -83dB off-isolation and -87dB crosstalk at 10MHz - superior to standard series switches. |
| Rail-to-rail analog operation | Supports ±3.5V signal swing with ±5V supplies - preserves dynamic range in video and RF baseband paths. |
| Independent per-switch grounds | GND1–GND4 enable localized RF return paths, reducing inter-channel coupling in dense PCB layouts. |
| ESD robustness | >2kV HBM per Method 3015.7 - withstands handling and board-level transients without latch-up or parametric shift. |
| Pin compatibility | Direct replacement for industry-standard DG540/DG542/DG643 - allows drop-in upgrade of legacy analog switch designs. |
Applications
| RF Test Signal Routing | SDI/HDMI Video Multiplexing |
|---|---|
Use Scenario: Channel selection in automated test equipment (ATE) for RF stimulus/response path switching between DUT and instruments. IC Role / Device Role / Timing Role: Quad SPST switch providing isolated, low-loss signal paths with sub-100ns switching for synchronized multi-port testing. Use Value: -83dB off-isolation prevents measurement contamination; 350MHz bandwidth covers cellular, WiFi, and Bluetooth frequency bands. |
Use Scenario: Source selection in broadcast video routers handling multiple SDI or HDMI inputs feeding a common processing pipeline. IC Role / Device Role / Timing Role: High-fidelity analog switch managing 75Ω video signals with minimal group delay variation across channels. Use Value: 2.5Ω RON matching ensures consistent gain across video paths; <2.5dB insertion loss preserves signal integrity up to 3G-SDI rates. |
| High-Speed Data Acquisition Front-End | Medical Ultrasound Beamforming |
Use Scenario: Multiplexing sensor outputs (e.g., strain gauges, thermocouples) into a shared ADC channel in industrial DAQ systems. IC Role / Device Role / Timing Role: Low-charge-injection (25pC) SPST switch minimizing sampling glitches and baseline drift during channel scanning. Use Value: Flat 2Ω RON over ±3.5V range ensures linear scaling across full input span; <5nA off-leakage maintains DC accuracy. |
Use Scenario: Transmit/receive (T/R) switching in phased-array ultrasound probes to isolate sensitive receive amplifiers from high-voltage transmit pulses. IC Role / Device Role / Timing Role: Fast turn-off (≤100ns) T-switch protecting LNA inputs while maintaining >80dB isolation at 5MHz fundamental frequency. Use Value: Shunt-grounded OFF state clamps transient energy; >2kV ESD rating survives probe handling and cable discharge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4565CPP+ | Same die, 20-pin plastic DIP package - larger footprint, higher parasitic inductance, lower thermal dissipation (640mW vs. 800mW). | Preferred for through-hole prototyping or legacy DIP-based test fixtures; unsuitable for high-density RF layouts. | Select MAX4565CPP+ only when DIP mounting is required; MAX4565CWP+ offers superior RF performance and thermal capability in surface-mount systems. |
| ADG1414BRUZ | Quad SPST, 4.5Ω RON max, -90dB isolation at 1MHz, but limited to 170MHz bandwidth and requires ≥±4.5V supplies. | Better for precision low-RON instrumentation; insufficient for 350MHz video or UHF RF routing. | Choose ADG1414BRUZ when ultra-low on-resistance and DC accuracy dominate; MAX4565CWP+ remains optimal for wideband RF/video where bandwidth and isolation are primary. |
Compared with MAX4565CPP+ and ADG1414BRUZ, the MAX4565CWP+ uniquely balances 350MHz bandwidth, -83dB isolation, and SOIC-W manufacturability - making it the only option among the three qualified for broadcast video routing and 5G FR1 test switching without layout compromise.
Availability
MAX4565CWP+ is available at Aetrix Electronics and suitable for RF test equipment, broadcast video infrastructure, high-speed data acquisition systems, and medical ultrasound requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX4565CWP+ 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, mixed-signal, and RF solutions for industrial, communications, and consumer applications.
The MAX4565CWP+ belongs to Maxim's high-frequency analog switch product line, engineered specifically for broadband signal routing in RF, video, and test equipment where isolation, bandwidth, and switching fidelity are critical.
FAQ
What is the maximum operating frequency supported by the MAX4565CWP+?
The MAX4565CWP+ supports DC to 350MHz (-3dB bandwidth) in 50Ω systems, as confirmed in the datasheet's Typical Operating Characteristics (Figure MAX4565 TOC11). Performance is validated under ±5V supplies with proper RF grounding - bandwidth degrades at lower supply voltages or with inadequate bypassing.
Does the MAX4565CWP+ support single-supply operation?
Yes, the MAX4565CWP+ operates from a single +2.7V to +12V supply when V- is tied to ground. However, the datasheet states it is optimized for ±5V dual supplies; single-supply operation increases on-resistance, reduces off-isolation, and degrades distortion - especially below +5V.
How many ground pins does the MAX4565CWP+ have, and why are they separate?
The MAX4565CWP+ has six dedicated ground terminals: GND1–GND4 (one per switch), plus GND5 and GND6 (isolation enhancement grounds). They are not internally connected to minimize crosstalk and allow localized RF return paths - all must be soldered to a solid ground plane to achieve specified -83dB off-isolation.
Is the MAX4565CWP+ pin-compatible with older industry-standard switches?
Yes, the MAX4565CWP+ is explicitly pin-compatible with DG540, DG542, and DG643 according to the datasheet Features section. This enables direct replacement in existing designs without PCB modification, preserving layout integrity while upgrading bandwidth and isolation performance.
What is the typical on-resistance flatness of the MAX4565CWP+ over its signal range?
The MAX4565CWP+ exhibits ≤2Ω on-resistance flatness (RFLAT(ON)) over its full specified analog signal range when operated with ±5V supplies. This flatness ensures minimal harmonic distortion and consistent gain across the signal swing - critical for video and RF applications.
MAX4565CWP+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Applications:
- -
- Multiplexer/Demultiplexer Circuit:
- -
- Switch Circuit:
- -
- Number of Channels:
- -
- On-State Resistance (Max):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- -
- -3db Bandwidth:
- -
- Features:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
MAX4565CWP+ FAQ
1.How can I place an order for MAX4565CWP+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4565CWP+ 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 MAX4565CWP+ reliable?
The price and inventory of MAX4565CWP+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4565CWP+ is usually 5 days.
3.What payment methods are accepted for MAX4565CWP+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4565CWP+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4565CWP+?
MAX4565CWP+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4565CWP+ 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 MAX4565CWP+?
For technical support, including MAX4565CWP+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4565CWP+ requirements.
6.How does Aetrix verify that MAX4565CWP+ is sourced from the original manufacturer or authorized distributors?
All MAX4565CWP+ 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 MAX4565CWP+ meets industry standards.
7.What is the process for return or replacement of MAX4565CWP+?
All MAX4565CWP+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4565CWP+, 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 MAX4565CWP+ part is unused and in its original packaging.
Return procedure for MAX4565CWP+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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