Analog Devices Inc./Maxim Integrated MAX4739EBE+T
- Part No.:
- MAX4739EBE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX4739EBE+T.pdf
- Description:
- IC SWITCH QUAD SPST 16UCSP
- Quantity:
- Payment:

- Shipping:

Inventory:4,671
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Product details
Overview
MAX4739EBE+T from Maxim Integrated is a quad SPST analog switch with two normally open (NO) and two normally closed (NC) channels, designed for USB 1.1 signal routing and low-voltage audio switching. It delivers 4.5Ω max on-resistance at +3V, <40ns turn-off time, and 300MHz -3dB bandwidth in a 2mm × 2mm UCSP package.
For engineers reviewing the MAX4739EBE+T datasheet, MAX4739EBE+T pinout, MAX4739EBE+T application, or MAX4739EBE+T equivalent, this device supports rail-to-rail analog signal handling, break-before-make timing (8ns typ), and +1.8V logic compatibility - critical for portable USB/audio interface design with tight board space constraints.
Technical Context
The MAX4739EBE+T implements a CMOS-based quad SPST architecture with dedicated NO/NC channel pairing per switch: IN1 controls NO1/NC2, IN2 controls NO2/NC4, IN3 controls NO3/NC1, and IN4 controls NO4/NC3. Its break-before-make timing ensures signal integrity during channel transitions in bidirectional data paths.
It operates across +1.8V to +5.5V single supply, with guaranteed performance at both 3V and 5V. Logic inputs tolerate up to +5.5V regardless of V+, enabling mixed-voltage system interfacing while maintaining <0.5nA leakage and -80dB crosstalk at 10MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (max) | 4.5Ω at +3V - ensures minimal voltage drop and power loss in low-voltage signal paths |
| Break-Before-Make Delay | 8ns typical - prevents momentary shorting during channel switching in USB/data lines |
| -3dB Bandwidth | >300MHz - preserves signal fidelity for USB 1.1 full-speed (12Mbps) and audio-band applications |
| On-Channel Capacitance | 15pF - limits loading on high-impedance sources and maintains fast edge response |
| Off-Isolation | -55dB at 10MHz - suppresses coupling between inactive and active signal paths |
| Crosstalk | -80dB at 10MHz - enables clean multi-channel routing without interference |
| Supply Range | +1.8V to +5.5V - supports direct integration into battery-powered and mixed-supply systems |
Pinout & Package
MAX4739EBE+T uses a 16-bump UCSP (2mm × 2mm, 0.5mm bump pitch) with bottom-side bumps. The package occupies minimal PCB area and supports fine-pitch reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | Digital control input | CMOS-compatible logic inputs accepting 0V to V+ or up to +5.5V; drive NO/NC state per channel pair |
| COM1–COM4 | Analog common terminal | Bidirectional signal path hub - connects to source or load depending on switch configuration |
| NO1, NO3 | Normally open analog terminal | Conducts only when corresponding IN_ is HIGH; used for default-open signal routing |
| NC2, NC4 | Normally closed analog terminal | Conducts only when corresponding IN_ is LOW; provides default-closed path for fail-safe operation |
| V+ | Positive supply | Single supply rail supporting full rail-to-rail analog signal swing (0V to V+) |
| GND | Ground reference | Common return for analog and digital domains; requires low-impedance connection to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guaranteed 8ns typ tBBM prevents signal contention in USB/data multiplexing |
| RON matching | 0.4Ω max mismatch between channels ensures balanced gain/attenuation in stereo or differential paths |
| Rail-to-rail signal handling | Supports analog signals from GND to V+ without clipping - essential for audio and sensor interfaces |
| Low charge injection | 5pC typical - minimizes voltage glitch on sampled nodes in data-acquisition and sample-and-hold circuits |
| USB 1.1 compliance | Validated for 12Mbps full-speed signaling with <2ns propagation delay and <0.5ns skew change |
Applications
| USB 1.1 Peripheral Switching | Portable Audio Signal Routing |
|---|---|
Use Scenario: Dynamic selection between multiple USB upstream ports in a dock or hub controller. IC Role / Device Role / Timing Role: Quad SPST switch providing isolated, low-distortion path control for D+/D− pairs with break-before-make timing. Use Value: Enables hot-plug reconfiguration without bus contention; 300MHz bandwidth preserves eye diagram integrity at 12Mbps. |
Use Scenario: Channel-selectable routing of microphone/line-in and headphone/line-out signals in smartphones or wearables. IC Role / Device Role / Timing Role: Bidirectional analog switch managing signal flow between codecs, amplifiers, and connectors. Use Value: 4.5Ω RON and 0.03% THD maintain SNR >95dB; 15pF CON avoids high-frequency roll-off in 20Hz–20kHz band. |
| Low-Voltage Data Acquisition | Sample-and-Hold Circuit Switching |
Use Scenario: Multiplexing sensor outputs (e.g., thermistors, RTDs) into a shared ADC front-end in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Low-leakage (<0.5nA) analog switch isolating inactive channels to prevent measurement error. Use Value: Sub-nA leakage ensures <0.1% gain error over temperature; rail-to-rail operation accommodates wide sensor output ranges. |
Use Scenario: Precision hold capacitor charging/discharge control in instrumentation-grade sample-and-hold amplifiers. IC Role / Device Role / Timing Role: Fast-switching (tOFF <40ns) SPST element enabling accurate acquisition window timing. Use Value: 5pC charge injection limits hold-step error to <1LSB in 16-bit systems; low RON flatness (1.2Ω) ensures consistent settling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4737EBE+T | Four NO-only channels; no NC functionality; identical RON, bandwidth, and package | Suitable where all paths require active-high enable without default closure | Select when system-level fault tolerance does not require NC paths |
| MAX4738EBE+T | Four NC-only channels; complementary logic sense; same electrical specs and UCSP footprint | Used in safety-critical paths requiring default conduction (e.g., bias or standby signal routing) | Choose when fail-safe continuity is mandatory and NO behavior is unnecessary |
Compared with MAX4739EBE+T, MAX4737EBE+T offers pure NO topology for simplified control logic, while MAX4738EBE+T provides NC-only operation for default-on reliability - both share identical timing, leakage, and layout compatibility but lack the hybrid NO/NC flexibility of MAX4739EBE+T.
Availability
MAX4739EBE+T is available at Aetrix Electronics and suitable for USB peripheral switching, portable audio routing, and low-voltage data-acquisition systems requiring stable component supply and long-term industrial availability.
Supply support for MAX4739EBE+T 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 and mixed-signal ICs for demanding industrial, communications, and consumer applications.
The MAX4737/MAX4738/MAX4739 family targets low-voltage, high-fidelity analog signal routing - specifically engineered for USB 1.1 compliance, audio path switching, and space-constrained portable electronics.
FAQ
What is the function of the NC and NO terminals in MAX4739EBE+T?
The MAX4739EBE+T integrates two normally open (NO1, NO3) and two normally closed (NC2, NC4) switches. When the control input is LOW, NO terminals are open and NC terminals conduct; when HIGH, NO terminals close and NC terminals open. This hybrid configuration enables flexible signal path control - for example, using NO for active signal routing and NC for default-bypass or fail-safe paths - all within a single 2mm × 2mm UCSP package.
Does MAX4739EBE+T support rail-to-rail analog signal operation?
Yes, MAX4739EBE+T supports true rail-to-rail analog signal handling from GND to V+. Its CMOS process and internal architecture allow analog voltages spanning the full supply range (0V to V+) to pass with minimal distortion or RON variation - confirmed by <1.2Ω RON flatness across the signal range at +3V. This makes MAX4739EBE+T suitable for audio, sensor, and data-acquisition interfaces where signal headroom is constrained.
What is the maximum supply voltage rating for MAX4739EBE+T?
MAX4739EBE+T is rated for continuous operation from +1.8V to +5.5V on the V+ pin. Absolute maximum ratings permit V+ up to +6.0V, but functional operation is guaranteed only within the 1.8V–5.5V range. At +5V supply, MAX4739EBE+T achieves 3Ω max on-resistance and maintains full AC performance including >300MHz bandwidth and <40ns tOFF, making it compatible with both battery-powered and 5V-system designs.
How does the break-before-make timing of MAX4739EBE+T benefit USB 1.1 applications?
MAX4739EBE+T guarantees an 8ns typical break-before-make (BBM) delay, preventing momentary shorting between USB D+ and D− lines during port switching. This eliminates bus contention and signal corruption in USB 1.1 full-speed (12Mbps) hubs or docking stations. Combined with <2ns differential skew and 300MHz bandwidth, MAX4739EBE+T preserves signal integrity and meets USB electrical compliance requirements without external protection circuitry.
Is MAX4739EBE+T pin-compatible with other variants in the MAX4737/MAX4738/MAX4739 family?
Yes, MAX4739EBE+T shares identical 16-bump UCSP pinout, footprint, and solder pad layout with MAX4737EBE+T and MAX4738EBE+T. All three variants use the same bump map (A1–D4 grid), enabling drop-in replacement on PCBs designed for the family - though logic behavior differs: MAX4739EBE+T implements mixed NO/NC switching, while MAX4737EBE+T is NO-only and MAX4738EBE+T is NC-only. No layout changes are required when substituting within the same UCSP package variant.
MAX4739EBE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- -
- Number of Circuits:
- -
- On-State Resistance (Max):
- -
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- -
- Current - Leakage (IS(off)) (Max):
- -
- Crosstalk:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX4739EBE+T FAQ
1.How can I place an order for MAX4739EBE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4739EBE+T 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 MAX4739EBE+T reliable?
The price and inventory of MAX4739EBE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4739EBE+T is usually 5 days.
3.What payment methods are accepted for MAX4739EBE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4739EBE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4739EBE+T?
MAX4739EBE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4739EBE+T 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 MAX4739EBE+T?
For technical support, including MAX4739EBE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4739EBE+T requirements.
6.How does Aetrix verify that MAX4739EBE+T is sourced from the original manufacturer or authorized distributors?
All MAX4739EBE+T 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 MAX4739EBE+T meets industry standards.
7.What is the process for return or replacement of MAX4739EBE+T?
All MAX4739EBE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4739EBE+T, 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 MAX4739EBE+T part is unused and in its original packaging.
Return procedure for MAX4739EBE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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