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Analog Devices Inc./Maxim Integrated MAX4907ELA+
- Part No.:
- MAX4907ELA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog Switches - Special Purpose
- Package:
- 8-WFDFN
- Datasheet:
-
MAX4907ELA+.pdf
- Description:
- IC USB SWITCH DUAL 1X2 8UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,286
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Product details
Overview
MAX4907ELA+ from Maxim Integrated is a dual SPST analog switch optimized for USB 2.0 high-speed (480Mbps) signal routing. It delivers 7Ω (max) on-resistance, 7pF (max) on-capacitance, -3dB bandwidth of 1GHz (typ), and +5.5V fault protection on COM1/COM2 terminals. It operates from a single +3.0V to +3.6V supply and supports 1.4V logic-level control in portable USB host-switching applications.
For engineers reviewing the MAX4907ELA+ datasheet, MAX4907ELA+ pinout, MAX4907ELA+ application, or MAX4907ELA+ equivalent, key selection criteria include USB 2.0 compliance, low RON/CON trade-off, fault-protection capability, shutdown current <2µA, and µDFN-8 package compatibility with high-density PCB layouts.
Technical Context
The MAX4907ELA+ implements a charge-pump-assisted n-channel architecture enabling rail-to-rail analog signal switching (0V to V+) with minimal distortion. Its dual independent SPST configuration allows simultaneous, isolated routing of two differential USB D+/D− pairs without crosstalk-induced timing skew.
It features a dedicated SHDN input (not SHDN/EN) that places the device into low-current mode (<2µA) while maintaining functional analog operation within 0–1.5V range; full performance resumes when SHDN is driven low. Fault protection activates at ≥4.0V on COM pins, with 3.0µs response time and 2µs recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 7Ω max - ensures minimal insertion loss and voltage drop across USB 2.0 data lines at 480Mbps. |
| On-Capacitance (CON) | 7pF max - preserves signal integrity and eye diagram opening for high-speed differential signaling. |
| -3dB Bandwidth | 1GHz typ - fully supports USB 2.0 high-speed (480Mbps) and 10/100 Ethernet baseband signals. |
| Fault Protection Threshold | +4.0V min - enables robust +5.5V short-circuit tolerance on COM1/COM2 per USB 2.0 specification. |
| Shutdown Current | <2µA max - reduces system standby power in battery-powered USB peripherals and docking stations. |
| Logic Compatibility | +1.4V VIH - allows direct interface with 1.8V and 1.4V GPIO controllers without level-shifting circuitry. |
| Supply Voltage Range | +3.0V to +3.6V - matches standard 3.3V LDO outputs and eliminates need for auxiliary bias rails. |
Pinout & Package
Package: 8-pin µDFN (2mm × 2mm × 0.8mm, pkg code L822-1), exposed pad, RoHS-compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Digital Control Input | Single logic input controlling both SPST switches; active-high, compatible with 1.4V logic. |
| 2 V+ | Positive Supply | +3.0V to +3.6V analog/digital supply; requires local 0.1µF bypass to GND. |
| 3 NO1 | Analog Output 1 | Normally open terminal of Switch 1; connects to COM1 when IN = high. |
| 4 NO2 | Analog Output 2 | Normally open terminal of Switch 2; connects to COM2 when IN = high. |
| 5 COM2 | Analog Common 2 | Input/output node for Switch 2; bidirectional, fault-protected up to +5.5V. |
| 6 COM1 | Analog Common 1 | Input/output node for Switch 1; bidirectional, fault-protected up to +5.5V. |
| 7 GND | Ground Reference | Analog and digital ground return; must be low-impedance connection to system plane. |
| 8 SHDN | Shutdown Input | Active-high shutdown control; drives device into <2µA quiescent state (analog range reduced to 0–1.5V). |
Key Features
| Feature | Design Value |
|---|---|
| USB 2.0 High-Speed Compliance | Validated at 480Mbps with <100ps bit-to-bit skew and >26dB off-isolation at 500MHz. |
| Dual Independent SPST Architecture | Enables concurrent, non-interfering switching of two differential USB channels without shared control path. |
| +5.5V Fault Protection | Integrated protection on COM1/COM2 prevents latch-up or damage during USB bus shorts. |
| Low Power Shutdown Mode | Reduces supply current to <2µA while retaining partial analog functionality for fast wake-up. |
| 1.4V Logic Compatibility | Supports direct interface with low-voltage microcontrollers and PMICs without external level shifters. |
Applications
| USB Host Switching | USB/SPI Shared-Pin Interface |
|---|---|
Use Scenario: A tablet dynamically routes its single USB transceiver between internal storage and external OTG peripherals using a physical button or software command. IC Role / Device Role / Timing Role: Dual SPST switch isolates D+/D− paths between two hosts; maintains signal integrity during hot-plug transitions. Use Value: Eliminates mechanical relays and reduces BOM count by enabling electronic USB port sharing with sub-100ns switching. | Use Scenario: A compact IoT sensor hub shares its USB data pins with SPI flash programming and GPIO debug interfaces via multiplexing. IC Role / Device Role / Timing Role: MAX4907ELA+ acts as a bidirectional analog gate, enabling tri-state-aware protocol arbitration between USB and SPI masters. Use Value: Reduces PCB layer count and connector footprint by consolidating I/O functions onto one physical port without signal degradation. |
| 10/100 Ethernet PHY Multiplexing | Docking Station Signal Routing |
Use Scenario: A laptop docking station selects between onboard Ethernet and dock-mounted Gigabit Ethernet PHY using a single RJ45 jack. IC Role / Device Role / Timing Role: Routes 10/100 Base-T differential pairs (TX+/TX−, RX+/RX−) with <100ps skew and >30dB isolation at 25MHz. Use Value: Enables seamless network handover without PHY reinitialization or link renegotiation delays. | Use Scenario: A modular docking station routes USB 2.0, audio, and debug signals from multiple peripheral slots to a single host controller. IC Role / Device Role / Timing Role: Provides low-RON, low-CON path selection for high-speed data lanes while maintaining ESD robustness and fault tolerance. Use Value: Supports hot-swap-ready expansion with guaranteed USB 2.0 eye mask compliance across all active configurations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4907FELA+ | Includes +5.5V fault protection on COM1/COM2; otherwise identical pinout, RON, CON, and timing. | Required for USB applications where bus shorts are probable (e.g., consumer-facing ports); adds ~$0.15 cost. | Select MAX4907FELA+ when fault protection is mandated by system safety requirements or regulatory testing. |
| TS3USB221ERGER | Lower RON (6Ω typ), same 8-pin µQFN package, but no fault protection and only 1.8V logic compatible (VIH = 1.4V not guaranteed). | Suitable for space-constrained designs needing marginally better RON but lacking USB bus fault exposure. | Choose TS3USB221ERGER only if fault protection is unnecessary and 1.4V logic compatibility is verified per unit. |
Compared with MAX4907FELA+, the MAX4907ELA+ trades fault protection for lower cost and identical core switching performance; versus TS3USB221ERGER, it guarantees 1.4V logic compatibility and USB 2.0 fault resilience at the expense of slightly higher RON.
Availability
MAX4907ELA+ is available at Aetrix Electronics and suitable for USB host switching, docking station signal routing, 10/100 Ethernet PHY multiplexing, and portable device I/O consolidation requiring stable component supply and long-term production support.
Supply support for MAX4907ELA+ 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX4907 series belongs to Maxim's high-speed analog switch product line, designed specifically for USB 2.0 and Ethernet signal routing in space-constrained, low-power portable systems.
FAQ
What is the maximum analog signal voltage range supported by the MAX4907ELA+?
The MAX4907ELA+ supports analog signals from 0V to V+ (i.e., 0V to +3.6V) when operating in normal mode (SHDN = low). In shutdown mode (SHDN = high), the usable analog range is reduced to 0V to +1.5V. This limitation ensures safe operation under low-quiescent-current conditions while preserving basic functionality for fast wake-up sequences. The MAX4907ELA+ maintains bidirectional signal flow across all valid voltage ranges.
Does the MAX4907ELA+ provide +5.5V fault protection on its COM pins?
No, the MAX4907ELA+ does not include +5.5V fault protection. That feature is exclusive to the MAX4907FELA+ variant. The MAX4907ELA+ is rated for COM pin voltages up to +5.5V under absolute maximum conditions but lacks the integrated fault-protection circuitry that actively clamps and isolates during overvoltage events. For USB applications requiring certified fault resilience, the MAX4907FELA+ is the appropriate selection.
Can the MAX4907ELA+ be used in 10/100 Ethernet applications?
Yes, the MAX4907ELA+ is explicitly qualified for 10/100 Ethernet switching. Its 1GHz typical -3dB bandwidth, <100ps output skew, and >30dB off-isolation at 25MHz ensure clean baseband signal routing for 10BASE-T and 100BASE-TX differential pairs. Application diagrams in the MAX4907ELA+ datasheet confirm use cases such as PHY multiplexing in docking stations and embedded network interfaces where low RON and minimal capacitive loading are critical.
What is the logic threshold voltage for the IN and SHDN inputs of the MAX4907ELA+?
The MAX4907ELA+ specifies VIH = +1.1V (min) and VIL = +0.4V (max) for both IN and SHDN inputs, with 100mV of hysteresis. This design enables reliable operation with 1.4V, 1.8V, and 3.3V logic families. The low VIH threshold allows direct interfacing with low-voltage microcontrollers without level-shifting circuitry, reducing system complexity and board area in portable USB devices.
How does the MAX4907ELA+ handle charge injection during switching?
The MAX4907ELA+ exhibits ≤5pC typical charge injection, measured at VCOM = 1.5V with CL = 100pF. This low value minimizes transient glitches on sensitive analog nodes-especially critical in high-resolution USB audio or precision sensor multiplexing. Charge injection remains stable across temperature and supply voltage, as confirmed by characterization curves in the MAX4907ELA+ datasheet, ensuring consistent performance in battery-powered and thermally variable environments.
MAX4907ELA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WFDFN
- Packaging:
- Bulk
- Product Status:
- Active
- Applications:
- USB
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Switch Circuit:
- SPST
- Number of Channels:
- 2
- On-State Resistance (Max):
- 7Ohm
- Voltage - Supply, Single (V+):
- 3V ~ 3.6V
- Voltage - Supply, Dual (V±):
- -
- -3db Bandwidth:
- 1GHz
- Features:
- USB 2.0
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-µDFN (2x2)
MAX4907ELA+ FAQ
1.How can I place an order for MAX4907ELA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4907ELA+ 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 MAX4907ELA+ reliable?
The price and inventory of MAX4907ELA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4907ELA+ is usually 5 days.
3.What payment methods are accepted for MAX4907ELA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4907ELA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4907ELA+?
MAX4907ELA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4907ELA+ 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 MAX4907ELA+?
For technical support, including MAX4907ELA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4907ELA+ requirements.
6.How does Aetrix verify that MAX4907ELA+ is sourced from the original manufacturer or authorized distributors?
All MAX4907ELA+ 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 MAX4907ELA+ meets industry standards.
7.What is the process for return or replacement of MAX4907ELA+?
All MAX4907ELA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4907ELA+, 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 MAX4907ELA+ part is unused and in its original packaging.
Return procedure for MAX4907ELA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4907ELA+ Tags
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