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Analog Devices Inc./Maxim Integrated MAX4721EBL
- Part No.:
- MAX4721EBL
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-WFBGA, CSPBGA
- Datasheet:
-
MAX4721EBL.pdf
- Description:
- IC SWITCH SPST-NO X 2 3OHM 8UCSP
- Quantity:
- Payment:
- Shipping:
Inventory:438
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Product details
Overview
MAX4721EBL from Maxim Integrated is a dual single-pole/single-throw (SPST) analog switch optimized for USB 1.1 and low-voltage audio signal routing. It operates from a single +1.8V to +5.5V supply, delivers 4.5Ω max on-resistance at +3V, features <0.5nA leakage current at +25°C, and supports rail-to-rail analog signal handling up to V+. It is used in portable audio multiplexing and battery-powered USB peripheral switching.
For engineers reviewing the MAX4721EBL datasheet, MAX4721EBL pinout, MAX4721EBL application, or MAX4721EBL equivalent, this page provides verified electrical specs, UCSP-9 package layout, USB 1.1 compliance confirmation, timing performance at 2.7V/3V/5V, and validated alternative options for dual SPST analog switching in space-constrained designs.
Technical Context
The MAX4721EBL implements two independent normally open (NO) SPST switches using BiCMOS process technology. Its break-before-make switching action (1ns delay) prevents signal shorting during channel transitions, and its <2ns differential skew ensures matched propagation across channels for high-fidelity signal routing.
It supports bidirectional analog signal flow with rail-to-rail capability, 15pF on-channel capacitance, and guaranteed operation over –40°C to +85°C. Digital inputs are +1.8V logic compatible even when V+ is as low as +2.7V, enabling interoperability with mixed-voltage systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (max) | 4.5Ω at +3V supply - ensures minimal voltage drop and power loss in low-voltage signal paths |
| RON Matching (max) | 0.3Ω between channels at +3V - enables precise differential or stereo signal tracking |
| Turn-On / Turn-Off Time | <80ns / <40ns at +2.7V - supports fast switching in USB 1.1 (12Mbps) data routing |
| Off-Isolation | –55dB at 10MHz - suppresses crosstalk between inactive and active signal paths |
| Analog Signal Range | 0V to V+ - allows full-rail signal transmission without clipping in single-supply systems |
| Supply Voltage Range | +1.8V to +5.5V - enables direct integration into Li-ion, 3.3V, and 5V systems without level shifting |
| Leakage Current (max) | ±1.5nA at TA = –40°C to +85°C - preserves signal integrity in high-impedance sample-and-hold circuits |
Pinout & Package
The MAX4721EBL is housed in a 1.52mm × 1.52mm wafer-level chip-scale package (UCSP-9) with a 3×3 bump array and 0.5mm bump pitch. This ultra-compact footprint reduces PCB area by >70% versus 8-pin µMAX.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1, IN2 | Digital control input | CMOS-compatible logic inputs; accept 0V/+V+ or 0V/+5.5V regardless of V+ supply |
| COM1, COM2 | Analog common terminal | Bidirectional signal path - connects to source or load depending on routing configuration |
| NO1, NO2 | Analog normally open terminal | Signal output only when corresponding IN_ is high; open-circuit when inactive |
| V+ | Positive analog supply | Single supply pin powering both analog and digital sections; bypass with 0.1µF to GND |
| GND | Digital/analog ground | Common reference for logic inputs and analog signals; must be low-impedance connection |
Key Features
| Feature | Design Value |
|---|---|
| USB 1.1 signal switching | Validated for 12Mbps full-speed data with <2ns propagation delay and <0.5ns skew change |
| Rail-to-rail signal handling | Supports analog signals from GND to V+ without distortion or clipping |
| Low on-channel capacitance | 15pF typical - minimizes bandwidth degradation and loading on high-frequency sources |
| Break-before-make switching | Guaranteed 1ns minimum dead time prevents momentary shorting between channels |
| +1.8V logic compatibility | VIH = 1.4V / VIL = 0.5V at +3V supply - enables direct interface with low-voltage microcontrollers |
Applications
| USB Peripheral Multiplexing | Portable Audio Routing |
|---|---|
Use Scenario: Selecting between multiple USB devices (e.g., keyboard/mouse) sharing one host port in compact docking stations. IC Role / Device Role / Timing Role: Dual SPST switch isolating D+ and D– lines; maintains signal integrity at 12Mbps with matched tON/tOFF. Use Value: Enables hot-plug-capable USB switching without external level shifters or timing compensation circuitry. |
Use Scenario: Routing line-level audio between headphone jack, speaker amplifier, and codec in Bluetooth earbuds or wearables. IC Role / Device Role / Timing Role: Low-RON, low-capacitance analog switch preserving THD <0.03% and bandwidth >300MHz. Use Value: Eliminates audible switching pop and preserves stereo channel matching via 0.3Ω RON match. |
| Low-Voltage Data Acquisition | Sample-and-Hold Signal Gating |
Use Scenario: Multiplexing sensor outputs (e.g., thermistor, photodiode) into a shared ADC input in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Bidirectional analog switch with ±1.5nA leakage - minimizes offset error in high-Z front-end paths. Use Value: Extends battery life via 1µA supply current and avoids gain drift caused by leakage-induced bias errors. |
Use Scenario: Enabling/disabling hold capacitor charging in precision instrumentation amplifiers with sub-microsecond acquisition windows. IC Role / Device Role / Timing Role: Fast-switching gate with tON <80ns at +2.7V - ensures accurate sampling window control. Use Value: Reduces aperture uncertainty and improves effective resolution in 16-bit+ SAR ADC systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPST analog switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4721EUA | Same die, 8-pin µMAX package (3.05mm × 3.05mm); 100% tested at TMAX; no bump-solder profile constraints | Better suited for prototyping and manual rework; less board-area efficient than UCSP | Select when assembly infrastructure lacks UCSP-compatible reflow capability or when thermal derating margin is critical |
| TMUX1574RTER | 4.8Ω RON (max) at 3.3V; 1.2pF lower CON; requires 1.08V–5.5V supply; not USB 1.1 characterized | Optimized for general-purpose low-RON switching; lacks published USB timing validation | Select when USB compliance is not required and lowest possible on-capacitance is prioritized over proven USB signal integrity |
Compared with MAX4721EUA and TMUX1574RTER, the MAX4721EBL uniquely combines USB 1.1 validation, UCSP-9 miniaturization, and guaranteed 4.5Ω RON at +3V - making it the optimal choice for production-grade, space-constrained USB/audio routing where signal fidelity and package size are co-constrained.
Availability
MAX4721EBL is available at Aetrix Electronics and suitable for USB peripheral switching, portable audio routing, low-voltage data acquisition, and sample-and-hold gating requiring stable component supply across industrial, medical, and consumer electronics programs.
Supply support for MAX4721EBL 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, mixed-signal, and power-management ICs for demanding industrial, automotive, and communications applications.
The MAX4721EBL belongs to Maxim's high-performance analog switch product line, engineered specifically for low-RON, low-leakage, and high-bandwidth signal routing in battery-powered and USB-compliant systems.
FAQ
What is the maximum operating temperature range for the MAX4721EBL?
The MAX4721EBL is specified for continuous operation from –40°C to +85°C. Its electrical characteristics-including on-resistance, leakage current, and switching times-are guaranteed across this full industrial temperature range, with testing performed per Maxim's design-guarantee methodology for UCSP packages.
Does the MAX4721EBL support bidirectional analog signal flow?
Yes, the MAX4721EBL supports fully bidirectional analog signal routing. The COM1/COM2 and NO1/NO2 terminals have no intrinsic directionality-signals may pass from COM to NO or NO to COM with identical RON, capacitance, and leakage performance, enabling flexible PCB layout in audio and sensor interfaces.
Can the MAX4721EBL be used with a 1.8V supply voltage?
Yes, the MAX4721EBL is fully operational at +1.8V supply. Its digital inputs remain compatible (VIH = 1.0V min, VIL = 0.6V max), on-resistance is 6.5Ω (typ) at +1.8V, and all AC specifications-including tON/tOFF and bandwidth-are maintained, making it suitable for ultra-low-power wearable applications.
What is the recommended PCB layout practice for the UCSP-9 package of the MAX4721EBL?
For the MAX4721EBL UCSP-9 package, use JEDEC J-STD-020A-compliant IR/VPR reflow profiles with preheating; avoid hand or wave soldering. Implement 0.1µF ceramic bypass capacitors directly between V+ and GND pins, and route analog traces away from digital control lines to minimize coupling. Thermal pads under the die are not electrically connected.
How does the MAX4721EBL differ from the MAX4722EBL and MAX4723EBL?
The MAX4721EBL contains two normally open (NO) switches, the MAX4722EBL has two normally closed (NC) switches, and the MAX4723EBL integrates one NO and one NC switch. All share identical RON, timing, and package specifications-but their truth tables and default states differ, requiring correct selection based on system-level fail-safe requirements.
MAX4721EBL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 3Ohm
- Channel-to-Channel Matching (ΔRon):
- 100mOhm
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 80ns, 40ns
- -3db Bandwidth:
- 300MHz
- Charge Injection:
- 5pC
- Channel Capacitance (CS(off), CD(off)):
- 9pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -80dB @ 10MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-UCSP (1.52x1.52)
MAX4721EBL FAQ
1.How can I place an order for MAX4721EBL through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4721EBL 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 MAX4721EBL reliable?
The price and inventory of MAX4721EBL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4721EBL is usually 5 days.
3.What payment methods are accepted for MAX4721EBL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4721EBL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4721EBL?
MAX4721EBL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4721EBL 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 MAX4721EBL?
For technical support, including MAX4721EBL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4721EBL requirements.
6.How does Aetrix verify that MAX4721EBL is sourced from the original manufacturer or authorized distributors?
All MAX4721EBL 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 MAX4721EBL meets industry standards.
7.What is the process for return or replacement of MAX4721EBL?
All MAX4721EBL units undergo pre-shipment inspection (PSI). If there is an issue with MAX4721EBL, 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 MAX4721EBL part is unused and in its original packaging.
Return procedure for MAX4721EBL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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