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Home > Products > Integrated Circuits (ICs) > Logic > Signal Switches, Multiplexers, Decoders

Analog Devices Inc./Maxim Integrated MAX4718EBC

Name: MAX4718EBC
Brand: Analog Devices Inc./Maxim Integrated
SKU: MAX4718EBC
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MAX4718EBC

Manufacturer:: Analog Devices Inc./Maxim Integrated

Category:: Signal Switches, Multiplexers, Decoders

Package:: -

Datasheet:: MAX4718EBC.pdf

Description:: MAX4718 DUAL SPDT ANALOG SWITCH

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Product details

Overview

MAX4718EBC from Maxim Integrated is a dual SPDT analog switch IC featuring one 4.5Ω (max) low-R_ON channel and one 20Ω (max) high-R_ON channel, operating from +1.8V to +5.5V. It delivers <80ns t_ON, <40ns t_OFF, >300MHz bandwidth, and rail-to-rail signal handling-designed specifically for USB 1.1 D+/D− switching and headphone routing in portable audio systems.

For engineers reviewing the MAX4718EBC datasheet, MAX4718EBC pinout, MAX4718EBC application, or MAX4718EBC equivalent, key selection criteria include guaranteed R_ON matching (0.3Ω/0.4Ω), break-before-make timing (1ns), 15pF on-capacitance, and UCSP-12 package compatibility with space-constrained PCB layouts.

Technical Context

The MAX4718EBC integrates two independent SPDT switches on a single BiCMOS die: Switch 1 uses low-R_ON architecture optimized for high-fidelity signal paths (e.g., USB data lines), while Switch 2 employs higher-R_ON design for auxiliary functions like audio path selection. Both support break-before-make operation with 1ns delay and tolerate analog signals from GND to V+.

Digital control inputs are +1.8V logic compatible across +2.7V–+3.6V supply range and accept up to +5.5V regardless of V+, enabling mixed-voltage system interfacing. The device guarantees R_ON flatness ≤1.2Ω and matching ≤0.4Ω over full analog voltage range at +3V supply.

Key Specifications

Parameter	Value and Actual Design Meaning
R_ON (SPDT1)	4.5Ω max - enables low-loss USB 1.1 signal routing with minimal insertion loss
R_ON (SPDT2)	20Ω max - balances isolation and power efficiency for auxiliary audio switching
t_ON/t_OFF	<80ns/<40ns at +2.7V - supports fast reconfiguration in dynamic signal-path applications
-3dB Bandwidth	>300MHz - preserves integrity of high-speed digital and wideband analog signals
On-Capacitance	15pF - minimizes loading on high-impedance sources and maintains signal rise time
Off-Isolation	-55dB at 10MHz - suppresses crosstalk between active and inactive channels
Supply Range	+1.8V to +5.5V - supports direct integration into battery-powered and mixed-supply systems

Pinout & Package

The MAX4718EBC is packaged in a 12-bump UCSP (Ultra Compact Silicon Package) measuring 2.0mm × 1.50mm with 0.5mm bump pitch and 4×3 bump array. This chip-scale package reduces PCB footprint by >60% versus µMAX or TDFN alternatives.

Pin/Terminal	Circuit Role	Design Meaning
A1	NC2	Analog Switch 2 Normally Closed terminal - connects to COM2 when IN2 = low
A2	IN2	Digital control input for Switch 2 - CMOS-compatible, accepts 0V/+V+ logic levels
A3	COM2	Common terminal for Switch 2 - bidirectional I/O node shared between NC2 and NO2
A4	NO2	Analog Switch 2 Normally Open terminal - connects to COM2 when IN2 = high
B1	GND	Ground reference - must be low-impedance connection for signal integrity and leakage control
B4	V+	Positive supply input - powers both analog and digital sections; decoupling required
C1	NC1	Analog Switch 1 Normally Closed terminal - connects to COM1 when IN1 = low
C2	IN1	Digital control input for Switch 1 - independent of IN2; enables asynchronous switching
C3	COM1	Common terminal for Switch 1 - handles primary signal path (e.g., USB D+/D−)
C4	NO1	Analog Switch 1 Normally Open terminal - connects to COM1 when IN1 = high

Key Features

Feature	Design Value
USB 1.1 compliance (TID = 4000231)	Validated for D+/D− switching with ≤2ns differential skew - ensures reliable enumeration and data transfer
Rail-to-rail signal handling	Supports analog voltages from GND to V+ without clipping - essential for full-swing audio and sensor signals
Break-before-make switching	Guaranteed 1ns minimum dead time prevents momentary shorting during state transitions
Low 15pF on-channel capacitance	Enables 12Mbps USB 1.1 data rates with minimal signal distortion and timing jitter
+1.8V logic compatibility	Accepts 0V/+V+ control signals with VIH = 1.4V (at +3V supply) - simplifies interface with low-voltage MCUs

Applications

USB 1.1 Signal Routing	Headphone Jack Detection & Switching
Use Scenario: Dynamic reconfiguration of USB D+/D− lines between host and peripheral ports in multi-role devices. IC Role / Device Role / Timing Role: Dual SPDT switch providing isolated, low-distortion signal path selection with guaranteed ≤2ns skew. Use Value: Enables USB On-The-Go (OTG) functionality without external level shifters or timing compensation circuits.	Use Scenario: Automatic detection and routing of stereo audio signals between internal codec and 3.5mm headphone jack. IC Role / Device Role / Timing Role: Low-R_ON channel routes left/right audio; high-R_ON channel senses plug insertion via bias current. Use Value: Eliminates mechanical switching complexity and supports true plug-and-play audio accessory detection.
Low-Voltage Data Acquisition Multiplexing	Portable Audio Signal Path Management
Use Scenario: Channel selection in battery-powered medical sensors or industrial monitoring units with ±100mA analog signal range. IC Role / Device Role / Timing Role: Bidirectional analog switch supporting rail-to-rail input/output with <0.5nA leakage at +25°C. Use Value: Maintains measurement accuracy across temperature and supply variations without calibration drift.	Use Scenario: Dynamic routing of microphone input, speaker output, and auxiliary line-in signals in smartphones and PDAs. IC Role / Device Role / Timing Role: Dual-switch architecture isolates sensitive receive paths from transmit paths during call setup. Use Value: Reduces acoustic feedback and improves SNR by >20dB through high off-isolation (-55dB @10MHz).

USB 1.1 Signal Routing

Headphone Jack Detection & Switching

Use Scenario: Dynamic reconfiguration of USB D+/D− lines between host and peripheral ports in multi-role devices.

IC Role / Device Role / Timing Role: Dual SPDT switch providing isolated, low-distortion signal path selection with guaranteed ≤2ns skew.

Use Value: Enables USB On-The-Go (OTG) functionality without external level shifters or timing compensation circuits.

Use Scenario: Automatic detection and routing of stereo audio signals between internal codec and 3.5mm headphone jack.

IC Role / Device Role / Timing Role: Low-R_ON channel routes left/right audio; high-R_ON channel senses plug insertion via bias current.

Use Value: Eliminates mechanical switching complexity and supports true plug-and-play audio accessory detection.

Low-Voltage Data Acquisition Multiplexing

Portable Audio Signal Path Management

Use Scenario: Channel selection in battery-powered medical sensors or industrial monitoring units with ±100mA analog signal range.

IC Role / Device Role / Timing Role: Bidirectional analog switch supporting rail-to-rail input/output with <0.5nA leakage at +25°C.

Use Value: Maintains measurement accuracy across temperature and supply variations without calibration drift.

Use Scenario: Dynamic routing of microphone input, speaker output, and auxiliary line-in signals in smartphones and PDAs.

IC Role / Device Role / Timing Role: Dual-switch architecture isolates sensitive receive paths from transmit paths during call setup.

Use Value: Reduces acoustic feedback and improves SNR by >20dB through high off-isolation (-55dB @10MHz).

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog switch applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MAX4717EBC-T	Identical dual 4.5Ω SPDT configuration; same UCSP-12 package; -40°C to +85°C temp range vs. 0°C to +70°C for MAX4718EBC	Not suitable for asymmetric R_ON requirements - lacks dedicated 20Ω channel for sensing or auxiliary routing	Select when matched low-R_ON performance across both switches is required and extended temperature operation is needed.
TMUX1574RSVR	Single-supply 1.8V–5.5V dual SPDT; 5.5Ω/12Ω R_ON; 300MHz bandwidth; 12-pin WQFN; no guaranteed R_ON matching spec	Higher R_ON mismatch (typ. 0.8Ω) and no documented USB 1.1 compliance certification	Consider for cost-sensitive designs where USB TID validation is not mandatory and layout space allows WQFN footprint.

Compared with MAX4717EBC-T and TMUX1574RSVR, the MAX4718EBC uniquely provides asymmetric R_ON channels with certified USB 1.1 compliance and tighter R_ON matching - making it optimal for mixed-signal systems requiring both high-fidelity routing and precision sensing in one package.

Availability

MAX4718EBC is available at Aetrix Electronics and suitable for USB 1.1 signal routing, portable audio switching, and low-voltage data acquisition systems requiring stable component supply across industrial and consumer production cycles.

Supply support for MAX4718EBC 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 power, sensing, connectivity, and interface applications.

The MAX4717/MAX4718 product line was designed for low-voltage, high-bandwidth analog signal routing in space-constrained portable electronics - emphasizing USB compliance, ultra-low leakage, and chip-scale packaging.

FAQ

What is the maximum supply voltage rating for the MAX4718EBC?

The MAX4718EBC has an absolute maximum supply voltage (V+) rating of +6.0V, but its specified operational range is +1.8V to +5.5V. Operating beyond +5.5V risks permanent damage and voids parametric guarantees. For robust long-term reliability, maintain V+ within the recommended range and observe proper power-supply sequencing (apply V+ before analog signals).

Does the MAX4718EBC support rail-to-rail analog signal switching?

Yes, the MAX4718EBC supports rail-to-rail analog signal handling: its analog terminals (COM_, NO_, NC_) operate from GND to V+ across the full temperature range. This capability is confirmed in the Electrical Characteristics table under "Analog Signal Range" and enables seamless integration with full-swing audio codecs, sensor interfaces, and USB transceivers without external clamping or level-shifting circuitry.

How does the MAX4718EBC achieve USB 1.1 compliance?

The MAX4718EBC achieves USB 1.1 compliance through TID #4000231 certification, which validates ≤2ns differential skew between D+ and D− paths, <80ns turn-on time, and >300MHz bandwidth. Its low 15pF on-capacitance and 4.5Ω R_ON ensure minimal signal degradation and meet USB 1.1 eye-diagram and jitter specifications when used in standard 300Ω/35pF test configurations.

What is the function of the two different R_ON channels in the MAX4718EBC?

The MAX4718EBC integrates two functionally distinct SPDT switches: SPDT1 (4.5Ω max) is optimized for high-fidelity signal paths like USB D+/D− or stereo audio; SPDT2 (20Ω max) provides higher isolation and lower leakage for auxiliary functions such as headphone detection, bias current routing, or low-speed sensor multiplexing - enabling dual-role signal management in a single UCSP-12 package.

Can the MAX4718EBC digital control inputs be driven with 5V logic while operating from a 3V supply?

Yes, the MAX4718EBC digital inputs (IN1, IN2) accept up to +5.5V regardless of V+ supply voltage. When V+ = +3.0V, VIH = +1.4V and VIL = +0.5V, so a 5V-tolerant MCU can directly drive the inputs without level shifters. This feature simplifies mixed-voltage system design and reduces BOM count in portable electronics with heterogeneous logic families.

MAX4718EBC Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc./Maxim Integrated

Series:: *

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Packaging:: Bulk

Product Status:: Active

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Independent Circuits:: -

Current - Output High, Low:: -

Voltage Supply Source:: -

Voltage - Supply:: -

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MAX4718EBC FAQ

1.How can I place an order for MAX4718EBC through Aetrix?

Please submit a Request for Quotation (RFQ) for MAX4718EBC 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 MAX4718EBC reliable?

The price and inventory of MAX4718EBC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4718EBC is usually 5 days.

3.What payment methods are accepted for MAX4718EBC?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4718EBC transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MAX4718EBC?

MAX4718EBC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MAX4718EBC 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 MAX4718EBC?

For technical support, including MAX4718EBC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4718EBC requirements.

6.How does Aetrix verify that MAX4718EBC is sourced from the original manufacturer or authorized distributors?

All MAX4718EBC 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 MAX4718EBC meets industry standards.

7.What is the process for return or replacement of MAX4718EBC?

All MAX4718EBC units undergo pre-shipment inspection (PSI). If there is an issue with MAX4718EBC, 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 MAX4718EBC part is unused and in its original packaging.

Return procedure for MAX4718EBC:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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