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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-NC X 2 3OHM 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:10,130
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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 maximum on-resistance at +3V, achieves <40ns turn-off time at +2.7V, and supports rail-to-rail analog signal handling up to V+.
For engineers reviewing the MAX4722EUA datasheet, MAX4722EUA pinout, MAX4722EUA application, or MAX4722EUA equivalent, this device is selected for precision low-RON, low-leakage (<0.5nA), high off-isolation (–55dB @10MHz), and tight RON matching (0.3Ω max) in space-constrained battery-powered systems.
Technical Context
The MAX4722EUA implements complementary MOSFET-based SPST switching with break-before-make timing (1ns) and guaranteed operation across –40°C to +85°C. Its BiCMOS process enables 15pF on-channel capacitance and <2ns differential skew, critical for maintaining USB 1.1 full-speed (12Mbps) signal integrity.
Digital inputs are +1.8V logic compatible with supply-independent thresholding (VIH = 1.4V at +3V, 2.0V at +5V), and analog terminals (COM/NC) support bidirectional rail-to-rail signal swing from GND to V+, with leakage currents specified down to ±0.5nA at +25°C.
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 matched gain/attenuation in dual-path audio or instrumentation circuits |
| Turn-Off Time (max) | 40ns at +2.7V - supports fast channel switching in multiplexed data acquisition systems |
| Off-Isolation | –55dB at 10MHz - suppresses crosstalk between inactive and active signal paths in dense PCB layouts |
| Analog Signal Range | 0V to V+ - allows full-rail signal transmission without clipping in single-supply portable audio interfaces |
| Supply Voltage Range | +1.8V to +5.5V - enables direct interface with Li-ion battery (3.0–4.2V), 3.3V logic, and 5V legacy systems |
| Input Logic Compatibility | +1.8V CMOS - permits control from ultra-low-voltage microcontrollers without level-shifting circuitry |
Pinout & Package
The MAX4722EUA is housed in an 8-pin µMAX package (3.05mm × 3.05mm × 1.05mm body, 0.65mm pitch), optimized for compact PCB layouts while maintaining standard surface-mount assembly compatibility.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | V+ | Positive analog supply input - must be bypassed with 0.1µF capacitor to GND for noise immunity |
| 2 | IN1 | Digital control input for Channel 1 - active-high logic controls NC1 switch state |
| 3 | COM2 | Common terminal for Channel 2 - bidirectional analog node connected to NC2 when IN2 = low |
| 4 | NC2 | Normally closed terminal for Channel 2 - forms closed path with COM2 when IN2 = low |
| 5 | GND | Digital/analog ground reference - shared return for supply and logic inputs |
| 6 | IN2 | Digital control input for Channel 2 - independent of IN1, enabling asynchronous dual-channel control |
| 7 | COM1 | Common terminal for Channel 1 - bidirectional analog node connected to NC1 when IN1 = low |
| 8 | NC1 | Normally closed terminal for Channel 1 - forms closed path with COM1 when IN1 = low |
Key Features
| Feature | Design Value |
|---|---|
| USB 1.1 compliance | Guaranteed <2ns differential skew and >300MHz –3dB bandwidth preserve 12Mbps data eye integrity |
| Rail-to-rail signal handling | Analog I/O supports full 0V to V+ swing - eliminates need for external biasing in single-supply audio codecs |
| Low on-capacitance | 15pF typical - minimizes loading on high-impedance sources such as MEMS microphones or sensor amplifiers |
| Ultra-low leakage | <0.5nA at +25°C - prevents DC offset drift in precision sample-and-hold or medical front-end circuits |
| Break-before-make timing | 1ns delay - prevents momentary short-circuit during channel switching in power-sensitive battery systems |
Applications
| USB Peripheral Switching | Portable Audio Routing |
|---|---|
|
Use Scenario: Dynamic reconfiguration of USB D+/D– lines between host and peripheral ports in multi-role devices (e.g., OTG smartphones). IC Role / Device Role / Timing Role: Dual NC switch isolates unused paths while routing active signals with sub-40ns switching latency. Use Value: Maintains USB 1.1 signal fidelity (–55dB off-isolation, <2ns skew) without requiring external termination or equalization. |
Use Scenario: Selecting between microphone and line-in inputs in Bluetooth headsets or voice-controlled wearables. IC Role / Device Role / Timing Role: Low-RON (4.5Ω) and 15pF CON minimize THD (0.03%) and preserve wideband audio frequency response. Use Value: Enables seamless analog source switching with no audible pop/click due to <5pC charge injection. |
| Battery-Powered Data Acquisition | Low-Voltage Sensor Multiplexing |
|
Use Scenario: Channel selection in handheld multimeters or portable environmental monitors using single-cell Li-ion supplies (3.0–4.2V). IC Role / Device Role / Timing Role: Dual NC configuration provides fail-safe default connection when power is lost or control logic resets. Use Value: Guaranteed operation down to +1.8V allows direct interface with buck-boost regulators, reducing BOM count. |
Use Scenario: Multiplexing outputs from multiple temperature, humidity, or gas sensors in IoT edge nodes. IC Role / Device Role / Timing Role: 0.3Ω RON matching ensures consistent gain scaling across channels in ratiometric ADC measurements. Use Value: Sub-nA leakage prevents measurement drift over extended sampling intervals in battery-operated deployments. |
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 |
|---|---|---|---|
| MAX4723EUA | One NO and one NC channel vs. MAX4722EUA's dual NC configuration | Suitable where fail-open behavior is required for one path (e.g., safety disconnect) | Select MAX4723EUA only if mixed NO/NC functionality is needed; otherwise MAX4722EUA provides superior default-closed reliability |
| TS5A23157DGSR | Higher RON (9Ω max at 3V), lower bandwidth (200MHz), and no guaranteed USB 1.1 compliance | Acceptable for non-critical audio or general-purpose signal routing where USB timing margins are not constrained | Choose TS5A23157DGSR for cost-sensitive designs where 4.5Ω RON and >300MHz bandwidth are not mandatory |
Compared with MAX4723EUA and TS5A23157DGSR, the MAX4722EUA uniquely delivers dual NC topology with USB-optimized AC performance and lowest RON in its voltage class-making it optimal for fail-safe, high-fidelity signal routing in portable electronics.
Availability
MAX4722EUA is available at Aetrix Electronics and suitable for USB peripheral switching, portable audio routing, and battery-powered data acquisition requiring stable component supply across industrial temperature ranges.
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 MAX472x family was engineered specifically for low-voltage, low-distortion analog signal routing in space-constrained portable systems-emphasizing USB 1.1 compliance, rail-to-rail operation, and ultra-low leakage.
FAQ
What is the maximum operating supply voltage for the MAX4722EUA?
The MAX4722EUA supports a continuous supply voltage range from +1.8V to +5.5V, with absolute maximum rating of +6.0V on the V+ pin. Operation beyond +5.5V risks permanent damage per the Absolute Maximum Ratings table, and all electrical specifications are guaranteed only within the +1.8V to +5.5V range. The MAX4722EUA maintains 4.5Ω RON (max) at +3V and improves to 3Ω (max) at +5V.
Does the MAX4722EUA support bidirectional analog signal flow?
Yes, the MAX4722EUA supports fully bidirectional analog signal routing on all COM and NC pins. Its CMOS-based switch architecture imposes no inherent directionality-signals may pass from COM to NC or NC to COM with identical RON, capacitance, and distortion characteristics. This enables flexible use in both source-selection and load-driving configurations without redesigning the signal path.
How does the MAX4722EUA differ from the MAX4721EUA and MAX4723EUA?
The MAX4722EUA features two normally closed (NC) switches, whereas MAX4721EUA has two normally open (NO) switches and MAX4723EUA combines one NO and one NC switch. All three share identical electrical specs (RON, bandwidth, leakage), but their default states under logic-low control differ-making MAX4722EUA ideal for fail-safe closed-path applications like battery backup routing or default audio output paths.
What is the thermal performance limit for the MAX4722EUA in µMAX package?
The MAX4722EUA in 8-pin µMAX package has a maximum continuous power dissipation of 362mW at +70°C ambient, derating by 4.5mW/°C above that temperature. Junction temperature must not exceed +150°C, and the device is rated for operation from –40°C to +85°C. Thermal design requires a minimum 0.1µF V+/GND bypass capacitor and adherence to JEDEC J-STD-020 moisture sensitivity level (MSL) guidelines during reflow.
Can the MAX4722EUA be used with 1.8V logic control signals while powered from a 5V supply?
Yes, the MAX4722EUA accepts logic inputs up to +5.5V regardless of V+ supply voltage. With a +5V V+ supply, VIH is specified at +2.0V (min), so a 1.8V logic high meets the requirement only marginally-but Maxim guarantees +1.8V CMOS compatibility at V+ = +2.7V to +3.6V. For robust 1.8V logic interfacing, operate the MAX4722EUA at V+ = +3.3V and verify VIH = +1.4V (min) per the datasheet.
MAX4722EUA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- SPST - NC
- 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-µMAX
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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