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Analog Devices Inc./Maxim Integrated MAX4854ETE
- Part No.:
- MAX4854ETE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
MAX4854ETE.pdf
- Description:
- IC SW SPSTX4 9OHM 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:260
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Product details
Overview
MAX4854ETE from Maxim Integrated is a quad SPST analog switch IC designed for high-fidelity USB 2.0 full-speed (12Mbps) signal routing in portable systems. It operates from a single +2V to +5.5V supply, delivers 7Ω typical on-resistance, 30pF on-capacitance, and passes analog signals up to +5.5V - exceeding its supply rail - with minimal distortion. Its primary circuit role is bidirectional D+/D− switching in USB multiplexer or port-selection applications.
For engineers reviewing the MAX4854ETE datasheet, MAX4854ETE pinout, MAX4854ETE application, or MAX4854ETE equivalent, key selection criteria include over-rail signal handling capability, sub-1ns channel skew, 150MHz –3dB bandwidth, 1.8V logic compatibility, and low 0.01µA supply current in extended temperature operation.
Technical Context
The MAX4854ETE integrates four independent CMOS SPST switches with matched on-resistance (ΔRON ≤ 0.5Ω) and tightly controlled dynamic timing (tSKEW ≤ 1ns, tPD ≤ 2ns). Each switch supports rail-to-rail analog signal swing (0V to +5.5V) regardless of VCC (as low as +2V), enabled by internal level-shifting control architecture that decouples digital input thresholds from supply voltage.
Its 30pF COM on-capacitance and 13pF NO off-capacitance minimize signal loading and crosstalk (–95dB at 1MHz), while charge injection (8pC) and THD (0.04% over 20Hz–20kHz) ensure integrity for audio and data signals. The device uses a thin QFN package with exposed paddle for thermal stability under continuous 50mA channel current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | +2.0V to +5.5V - enables direct interface with 2.5V, 3.3V, and 5V system rails without level shifters. |
| On-Resistance (RON) | 7Ω typ. at VCC = +3V - ensures minimal insertion loss and voltage drop for USB D+/D− signals. |
| On-Capacitance (CON) | 30pF - preserves signal edge rate and minimizes loading on high-speed 12Mbps USB data lines. |
| –3dB Bandwidth | 150MHz - supports full USB 2.0 full-speed eye diagram integrity with margin. |
| Logic Compatibility | 1.8V input threshold at VCC ≥ +3.6V - allows direct connection to low-voltage microcontrollers and FPGAs. |
| Supply Current (ICC) | 0.01µA typ. - eliminates standby power concerns in battery-powered handheld devices. |
| Operating Temperature | –40°C to +85°C - qualified for industrial and mobile end-equipment environments. |
Pinout & Package
MAX4854ETE is housed in a 16-pin, 3mm × 3mm × 0.8mm thin QFN package with exposed thermal pad (EP) that must be soldered to PCB ground for optimal thermal performance and signal integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 7, 10 (NO1–NO4) |
Normally Open analog terminal per switch | Bidirectional signal path endpoint; connects to D+ or D− when switch is enabled. |
| 4, 8, 12, 16 (COM1–COM4) |
Common analog terminal per switch | Central signal node - routed to USB connector or host/device PHY; bidirectional I/O. |
| 3, 9, 13, 15 (IN1–IN4) |
Digital control input (active-high) | Accepts 1.8V–5.5V logic levels; no external pull-up required; drives switch ON/OFF state. |
| 6 | GND | Analog and digital reference ground; ties to exposed paddle for low-impedance return path. |
| 14 | VCC | Single analog/digital supply input; requires local 0.01µF bypass capacitor to GND. |
| 2, 11 | N.C. | No internal connection - must remain unconnected; not usable as spare pins or grounds. |
Key Features
| Feature | Design Value |
|---|---|
| Over-rail signal handling | Passes analog signals up to +5.5V even when VCC = +2.0V - eliminates need for external clamping or level translation in mixed-supply USB systems. |
| Sub-1ns channel skew | tSKEW ≤ 1ns guarantees matched propagation delay across all four switches - critical for preserving USB D+/D− differential timing integrity. |
| Low 8pC charge injection | Minimizes transient glitches on analog nodes during switching - essential for glitch-free USB hot-plug detection and audio paths. |
| –95dB crosstalk at 1MHz | Prevents coupling between active and inactive USB channels - maintains signal separation in multi-port hub or docking applications. |
| 1.8V logic-compatible inputs | Supports direct interfacing with modern low-voltage SoCs and PMICs without additional GPIO translators. |
Applications
| USB 2.0 Port Multiplexing | Mobile Device Docking Stations |
|---|---|
|
Use Scenario: Selecting between two USB hosts (e.g., laptop and tablet) to share a single peripheral such as a keyboard or flash drive. IC Role / Device Role / Timing Role: Quad SPST switch routes D+/D− pairs bidirectionally under digital control, maintaining signal fidelity and skew matching. Use Value: Enables seamless host-swapping without signal degradation or re-enumeration delays, leveraging 150MHz bandwidth and <1ns skew. |
Use Scenario: A compact docking station supporting simultaneous USB 2.0 connections to multiple peripherals (mouse, storage, camera) via a single upstream port. IC Role / Device Role / Timing Role: Acts as a low-loss, low-power analog switch matrix managing D+/D− routing between host controller and downstream ports. Use Value: Delivers 7Ω RON and 30pF CON to preserve eye diagram margins across all channels, enabling reliable 12Mbps operation in space-constrained layouts. |
| Smartphone USB Switching | Notebook Internal USB Sharing |
|
Use Scenario: Routing USB signals between baseband processor and application processor in dual-SoC smartphones to support OTG and peripheral mode. IC Role / Device Role / Timing Role: Provides rail-independent analog switching of D+/D− with over-rail capability - critical when VCC = 2.8V but USB signals reach 3.3V. Use Value: Eliminates external voltage translators and reduces BOM count while ensuring robust hot-plug detection via low 8pC charge injection. |
Use Scenario: Sharing a single USB controller between internal modules (e.g., fingerprint sensor and SIM card reader) in ultrabook designs. IC Role / Device Role / Timing Role: Functions as a low-leakage (±10nA off-state), low-power (0.01µA ICC) analog selector activated only during module access. Use Value: Reduces standby current and prevents signal coupling between idle and active modules using –80dB off-isolation and –95dB crosstalk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS3USB30E | Single-channel, 6Ω RON, 10pF CON, supports USB 2.0 but lacks over-rail capability beyond VCC. | Requires VCC ≥ signal swing; unsuitable for mixed-rail USB systems where analog signals exceed supply. | Choose TS3USB30E only when all signal voltages stay within VCC range and quad integration is unnecessary. |
| ADG732BRUZ | 32-channel, 4Ω RON, 35pF CON, wider supply (1.8V–5.5V), but no guaranteed USB 2.0 skew or bandwidth specs. | Not characterized for USB timing; higher capacitance may degrade 12Mbps eye opening. | Prefer ADG732BRUZ for general-purpose multichannel switching, not USB-critical signal routing. |
Compared with TS3USB30E and ADG732BRUZ, the MAX4854ETE uniquely combines quad integration, over-rail signal handling, sub-1ns skew, and USB-optimized bandwidth - making it the only option qualified for high-reliability, mixed-supply USB 2.0 switching in portable electronics.
Availability
MAX4854ETE is available at Aetrix Electronics and suitable for USB 2.0 port multiplexing, smartphone OTG routing, and notebook internal peripheral sharing requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for MAX4854ETE 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 MAX4854ETE belongs to Maxim's precision analog switch product line, engineered specifically for USB 2.0 full-speed signal integrity in space-constrained, battery-sensitive portable devices.
FAQ
What is the maximum analog signal voltage the MAX4854ETE can pass when operating at VCC = +2.0V?
The MAX4854ETE can pass analog signals from 0V to +5.5V - including voltages exceeding its +2.0V supply - without distortion or clipping. This over-rail capability is explicitly specified in the Absolute Maximum Ratings and Electrical Characteristics tables, enabling use in mixed-supply USB systems where D+/D− swing exceeds VCC.
Does the MAX4854ETE support bidirectional signal flow on each switch channel?
Yes, the MAX4854ETE supports fully bidirectional analog signal flow between NO_ and COM_ terminals. The device has no intrinsic directionality - either pin may serve as input or output depending on system topology. This is confirmed in the Detailed Description section and validated by symmetric on-resistance and capacitance specifications.
Can the digital control inputs (IN1–IN4) be driven with 5V logic while VCC = +3.3V?
Yes, the IN_ inputs accept logic-high voltages up to +5.5V regardless of VCC level. With VCC = +3.3V, VIH is guaranteed at +1.8V, so a 5V-tolerant microcontroller GPIO can directly drive MAX4854ETE without level-shifting circuitry - a key feature documented in the Digital I/O section.
What is the thermal requirement for the exposed paddle (EP) on the MAX4854ETE package?
The exposed paddle (EP) of the MAX4854ETE must be soldered to a PCB ground plane to ensure proper thermal dissipation and electrical stability. The datasheet specifies "CONNECT EXPOSED PADDLE TO PC BOARD GROUND" and characterizes thermal performance assuming this connection - omitting it risks junction temperature exceedance under 50mA continuous channel load.
How does the MAX4854ETE maintain USB 2.0 signal integrity at 12Mbps?
The MAX4854ETE maintains USB 2.0 signal integrity through 150MHz –3dB bandwidth, <1ns channel skew, 30pF on-capacitance, and 7Ω on-resistance - all measured and guaranteed across –40°C to +85°C. These parameters collectively preserve rise/fall times, differential timing, and eye opening required for reliable 12Mbps operation, as verified in the Typical Operating Circuit and Frequency Response plots.
MAX4854ETE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - Open
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 9Ohm
- Channel-to-Channel Matching (ΔRon):
- 200mOhm
- Voltage - Supply, Single (V+):
- 2V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 60ns, 40ns
- -3db Bandwidth:
- 150MHz
- Charge Injection:
- 8pC
- Channel Capacitance (CS(off), CD(off)):
- 13pF
- Current - Leakage (IS(off)) (Max):
- 2nA
- Crosstalk:
- -95dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TQFN-EP (3x3)
MAX4854ETE FAQ
1.How can I place an order for MAX4854ETE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4854ETE 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 MAX4854ETE reliable?
The price and inventory of MAX4854ETE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4854ETE is usually 5 days.
3.What payment methods are accepted for MAX4854ETE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4854ETE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4854ETE?
MAX4854ETE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4854ETE 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 MAX4854ETE?
For technical support, including MAX4854ETE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4854ETE requirements.
6.How does Aetrix verify that MAX4854ETE is sourced from the original manufacturer or authorized distributors?
All MAX4854ETE 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 MAX4854ETE meets industry standards.
7.What is the process for return or replacement of MAX4854ETE?
All MAX4854ETE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4854ETE, 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 MAX4854ETE part is unused and in its original packaging.
Return procedure for MAX4854ETE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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