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Analog Devices Inc./Maxim Integrated MAX4722EUA+
- Part No.:
- MAX4722EUA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4722EUA+.pdf
- Description:
- IC SWITCH SPST-NCX2 4.5OHM 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:4,525
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Product details
Overview
MAX4722EUA+ from Maxim Integrated is a dual single-pole/single-throw (SPST) analog switch with two normally closed (NC) channels, designed for low-voltage signal routing in USB 1.1 and audio applications. It operates from a single +1.8V to +5.5V supply, delivers 4.5Ω max on-resistance at +3V, <40ns turn-off time at +2.7V, and supports rail-to-rail analog signal handling up to the supply rails.
For engineers reviewing the MAX4722EUA+ datasheet, MAX4722EUA+ pinout, MAX4722EUA+ application, or MAX4722EUA+ equivalent, this page provides verified electrical specs, µMAX package layout, USB-compliant switching performance, leakage and bandwidth data, and real-world selection guidance for battery-powered and high-fidelity signal-path designs.
Technical Context
The MAX4722EUA+ implements dual NC SPST switches using BiCMOS process technology, enabling guaranteed operation across -40°C to +85°C with break-before-make timing excluded (unlike MAX4723). Its digital inputs are +1.8V logic compatible even when V+ is +2.7V to +3.6V, and it maintains <0.5nA leakage at +25°C with 15pF on-channel capacitance.
Signal integrity is preserved via <2ns differential skew, >300MHz -3dB bandwidth, -80dB crosstalk at 10MHz, and 0.3Ω max RON matching between channels at +3V - all specified under actual operating conditions, not typical-only values.
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 at +3V - enables precise channel-to-channel gain/attenuation tracking in differential or stereo routing |
| Turn-Off Time (max) | 40ns at +2.7V - supports fast switching in USB 1.1 full-speed (12Mbps) data lines without pulse distortion |
| Off-Isolation | -55dB at 10MHz - suppresses unwanted coupling between inactive and active signal paths |
| On-Channel Capacitance | 15pF - minimizes loading on high-impedance sources and preserves bandwidth in audio and RF-adjacent circuits |
| Supply Range | +1.8V to +5.5V - allows 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 - prevents DC error accumulation in precision sample-and-hold or sensor interfaces |
Pinout & Package
MAX4722EUA+ is housed in an 8-pin µMAX package (3.05mm × 3.05mm, 0.65mm pitch), compatible with standard SOIC footprints but with reduced height. The package uses gull-wing leads and requires no special reflow profile.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (V+) | Positive supply input | Accepts +1.8V to +5.5V; must be bypassed with 0.1µF capacitor to GND for noise immunity |
| 2 (IN1) | Digital control input for Channel 1 | Inverts logic sense: logic low = NC1 closed; logic high = NC1 open |
| 3 (COM2) | Common terminal for Channel 2 | Bidirectional analog node; connects to system signal path requiring NC switching |
| 4 (NC2) | Normally closed terminal for Channel 2 | Connected to COM2 when IN2 = low; open when IN2 = high |
| 5 (GND) | Digital and analog ground reference | Must be tied to system ground plane; shared return for supply and logic |
| 6 (IN2) | Digital control input for Channel 2 | Inverts logic sense: logic low = NC2 closed; logic high = NC2 open |
| 7 (COM1) | Common terminal for Channel 1 | Bidirectional analog node; routed to NC1 when IN1 = low |
| 8 (NC1) | Normally closed terminal for Channel 1 | Default connection to COM1; breaks only upon logic high at IN1 |
Key Features
| Feature | Design Value |
|---|---|
| USB 1.1 signal switching compliance | Validated at 12Mbps with <2ns propagation delay variation - meets full-speed USB timing margin requirements |
| Rail-to-rail analog signal handling | Supports signals from GND to V+ without clipping or increased RON - essential for audio line-level and sensor output routing |
| +1.8V logic-compatible inputs | Accepts 0V/+1.8V logic levels independent of V+ (up to +5.5V) - simplifies mixed-supply system interfacing |
| Low 15pF on-capacitance | Maintains >300MHz -3dB bandwidth with 50Ω source/load - preserves edge fidelity in high-speed digital or video switching |
| High off-isolation (-55dB @10MHz) | Prevents signal bleed between adjacent channels in multi-source audio or data-acquisition multiplexing |
Applications
| USB Peripheral Switching | Portable Audio Routing |
|---|---|
Use Scenario: Selecting between two USB upstream ports on a docking station while maintaining full-speed (12Mbps) data integrity. IC Role / Device Role / Timing Role: Dual NC analog switch isolating unused port and connecting active D+/D- pair with sub-2ns skew control. Use Value: Eliminates need for external level shifters or buffers; preserves USB eye diagram margins via 4.5Ω RON and 15pF CON. | Use Scenario: Routing microphone or line-in signals between codec, amplifier, and ADC in a Bluetooth headset. IC Role / Device Role / Timing Role: Low-distortion (0.03% THD), rail-to-rail analog switch enabling zero-crossing mute and source selection without DC offset. Use Value: Prevents pop/click during switching via break-before-make exclusion and <0.5nA leakage - critical for battery-powered audio UX. |
| Low-Voltage Data Acquisition | Sample-and-Hold Signal Gating |
Use Scenario: Multiplexing multiple sensor outputs (e.g., thermistor, photodiode) into a single SAR ADC input in a wearable health monitor. IC Role / Device Role / Timing Role: Dual NC switch providing low-leakage (<1.5nA), low-RON path selection before ADC sampling phase. Use Value: Minimizes settling error and charge injection-induced voltage step (5pC typ) - improves effective resolution in 12–14-bit systems. | Use Scenario: Enabling/disabling hold capacitor charging in a precision sample-and-hold circuit used for oscilloscope front-end signal conditioning. IC Role / Device Role / Timing Role: Fast-turnoff (<40ns), low-capacitance switch isolating hold capacitor from input during acquisition phase. Use Value: Reduces aperture uncertainty and droop rate via 0.3Ω RON match and 1.2Ω RON flatness - extends usable sampling window. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4722EBL-T+ | Same die in 9-bump UCSP (1.52mm × 1.52mm); requires JEDEC-compliant reflow profile and specialized PCB layout | Better board-area efficiency but higher assembly complexity; unsuitable for hand-soldering or wave soldering | Select MAX4722EBL-T+ only when space-constrained PCBs justify UCSP process controls and reliability validation |
| TMUX1574RTER | 4.2Ω RON (max) at 3.3V; 1.5pF lower CON; supports 5.5V supply but not USB 1.1-validated | Lacks documented USB 1.1 timing compliance; higher crosstalk (-70dB vs -80dB) limits multi-channel audio separation | Prefer TMUX1574RTER for general-purpose low-RON switching where USB certification is not required |
Compared with MAX4722EBL-T+, the MAX4722EUA+ offers proven manufacturability in µMAX and broader design support; versus TMUX1574RTER, it delivers USB-specific timing validation and superior off-isolation for noise-sensitive mixed-signal systems.
Availability
MAX4722EUA+ is available at Aetrix Electronics and suitable for USB peripheral switching, portable audio routing, and low-voltage data-acquisition systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MAX4722EUA+ 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 power-management ICs for industrial, communications, and consumer applications.
The MAX4721/MAX4722/MAX4723 family was designed specifically for low-voltage, low-RON, high-bandwidth analog signal routing in space- and power-constrained systems such as portable USB peripherals and battery-powered audio devices.
FAQ
What is the maximum supply voltage rating for MAX4722EUA+?
The MAX4722EUA+ has an absolute maximum supply voltage (V+) of +6.0V, but its functional operating range is strictly +1.8V to +5.5V per datasheet specifications. Operating above +5.5V risks permanent damage and violates guaranteed performance parameters including RON, leakage, and switching speed. Always observe the +5.5V upper limit in production designs using MAX4722EUA+.
Does MAX4722EUA+ support break-before-make switching?
No, MAX4722EUA+ does not implement break-before-make (BBM) switching. BBM is exclusive to the MAX4723 variant (which combines one NO and one NC switch). The MAX4722EUA+ contains two normally closed (NC) switches with overlapping conduction during logic transitions - confirmed by truth tables and absence of tBBM specification in its electrical characteristics table. Use MAX4723EUA+ if BBM is required.
What is the logic polarity of the control inputs on MAX4722EUA+?
The control inputs (IN1 and IN2) on MAX4722EUA+ are active-low: a logic low (≤0.5V at +3V supply) closes the NC switch (connects COMx to NCx), while a logic high (≥1.4V at +3V supply) opens it. This inverted logic sense is consistent across all MAX4721/MAX4722/MAX4723 variants and is explicitly shown in the µMAX truth tables and functional diagrams for MAX4722EUA+.
Can MAX4722EUA+ handle analog signals beyond the supply rails?
No, MAX4722EUA+ cannot safely handle analog signals beyond the supply rails. Its absolute maximum ratings specify COM_, NO_, and NC_ pins must remain within -0.3V to (V+ + 0.3V). Exceeding this range forward-biases internal ESD diodes, risking latch-up or permanent damage. The device supports true rail-to-rail signaling - i.e., from GND to V+ - but not beyond. This limitation applies identically to MAX4722EUA+ and all members of the family.
Is MAX4722EUA+ qualified for automotive temperature range?
No, MAX4722EUA+ is rated for industrial temperature range only: -40°C to +85°C. It is not AEC-Q100 qualified nor specified for extended automotive ranges (-40°C to +125°C). While some electrical parameters (e.g., leakage, RON) are guaranteed over -40°C to +85°C, junction temperature limits (+150°C) and reliability testing do not meet automotive qualification standards. For automotive use, consider alternatives explicitly qualified to AEC-Q100 Grade 2 or 3.
MAX4722EUA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 4.5Ohm
- 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:
- -110dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
MAX4722EUA+ FAQ
1.How can I place an order for MAX4722EUA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4722EUA+ 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 MAX4722EUA+ reliable?
The price and inventory of MAX4722EUA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4722EUA+ is usually 5 days.
3.What payment methods are accepted for MAX4722EUA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4722EUA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4722EUA+?
MAX4722EUA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4722EUA+ 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 MAX4722EUA+?
For technical support, including MAX4722EUA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4722EUA+ requirements.
6.How does Aetrix verify that MAX4722EUA+ is sourced from the original manufacturer or authorized distributors?
All MAX4722EUA+ 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 MAX4722EUA+ meets industry standards.
7.What is the process for return or replacement of MAX4722EUA+?
All MAX4722EUA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4722EUA+, 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 MAX4722EUA+ part is unused and in its original packaging.
Return procedure for MAX4722EUA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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