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Analog Devices Inc./Maxim Integrated MAX4737EUD+T
- Part No.:
- MAX4737EUD+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4737EUD+T.pdf
- Description:
- IC SW SPST-NOX4 4.5OHM 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,579
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Product details
Overview
The MAX4737EUD+T from Maxim Integrated is a quad single-pole/single-throw (SPST) analog switch optimized for USB 1.1 and audio signal routing, operating from a single +1.8V to +5.5V supply with 4.5Ω max on-resistance at +3V, <40ns turn-off time, and 15pF on-channel capacitance. It supports rail-to-rail analog signal handling and features break-before-make switching for channel isolation in portable audio and data-acquisition systems.
For engineers reviewing the MAX4737EUD+T datasheet, MAX4737EUD+T pinout, MAX4737EUD+T application, or MAX4737EUD+T equivalent, this device delivers low-distortion (<0.03% THD), high off-isolation (–55dB at 10MHz), and guaranteed +1.8V logic compatibility - critical for battery-powered USB peripheral switching and precision analog multiplexing.
Technical Context
The MAX4737EUD+T implements four independent normally open (NO) SPST switches using CMOS process technology, enabling bidirectional signal flow with full rail-to-rail voltage support (GND to V+). Its architecture guarantees monotonic on-resistance flatness (≤1.2Ω) and tight matching (≤0.4Ω) across channels at +3V, ensuring minimal gain error in multi-channel signal paths.
Designed specifically for USB 1.1 full-speed (12Mbps) applications, it achieves <2ns differential skew and >300MHz –3dB bandwidth while maintaining sub-nanosecond break-before-make timing (1ns typical). Digital inputs tolerate up to +5.5V regardless of supply voltage, supporting mixed-voltage system interfacing without level shifters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +1.8V to +5.5V single supply - enables direct integration into Li-ion and 3.3V/5V systems without auxiliary rails |
| On-Resistance (RON) | 4.5Ω max at +3V - ensures minimal insertion loss and voltage drop in audio and sensor signal paths |
| On-Resistance Matching | 0.4Ω max between channels at +3V - preserves amplitude consistency across switched analog channels |
| Turn-Off Time (tOFF) | <40ns at +2.7V - supports fast channel reconfiguration in real-time sampling and multiplexing |
| Off-Isolation | –55dB at 10MHz - suppresses crosstalk between inactive and active signal paths in dense PCB layouts |
| On-Channel Capacitance | 15pF - minimizes high-frequency loading and preserves signal integrity up to 300MHz bandwidth |
| Leakage Current | <0.5nA at +25°C - prevents DC offset accumulation in precision sample-and-hold and sensor front-ends |
Pinout & Package
MAX4737EUD+T is packaged in a 14-pin TSSOP (thin shrink small-outline package) with 0.65mm lead pitch, occupying 5.0mm × 4.4mm PCB area. The package is RoHS-compliant and rated for operation from –40°C to +85°C.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 7, 10 | COM1–COM4 | Common analog terminals - bidirectional connection points shared between NO and signal path |
| 2, 5, 8, 11 | NO1–NO4 | Normally open analog terminals - conduct only when corresponding IN_ is HIGH; used for USB D+/D– and audio line routing |
| 3, 6, 9, 12 | IN1–IN4 | Digital control inputs - +1.8V logic compatible; accept 0V to +5.5V swing independent of V+ |
| 13 | V+ | Positive supply - powers analog and digital sections; bypass with 0.1µF capacitor to GND |
| 14 | GND | Digital ground reference - must be connected to system ground plane for noise immunity and leakage control |
Key Features
| Feature | Design Value |
|---|---|
| USB 1.1 Signal Switching | Guaranteed <2ns differential skew and <80ns tON at 12Mbps - maintains USB full-speed timing compliance |
| Rail-to-Rail Analog Handling | Supports signals from GND to V+ - eliminates clipping in audio and sensor interfaces with wide dynamic range |
| Low On-Capacitance | 15pF CON - reduces high-frequency attenuation and phase distortion in video and RF-adjacent signal chains |
| +1.8V Logic Compatibility | VIH = +1.4V, VIL = +0.5V at +2.7V to +3.6V supply - enables direct interface with ultra-low-power microcontrollers |
| Break-Before-Make Timing | 1ns typical - prevents momentary short-circuit between channels during switching transitions |
Applications
| USB Peripheral Multiplexing | Portable Audio Routing |
|---|---|
Use Scenario: Selecting between multiple USB devices (e.g., keyboard, mouse, flash drive) sharing one host controller port in embedded docking stations. IC Role / Device Role / Timing Role: Quad SPST analog switch providing isolated, low-distortion signal paths for D+ and D– lines with precise timing control. Use Value: Enables hot-plug-compatible USB 1.1 switching without violating rise/fall time or skew requirements at 12Mbps. |
Use Scenario: Routing stereo analog audio signals between headphone output, speaker amplifier, and microphone input in Bluetooth headsets. IC Role / Device Role / Timing Role: Low-RON, low-capacitance analog switch preserving signal fidelity and minimizing crosstalk between left/right channels. Use Value: Delivers <0.03% THD and –80dB crosstalk at 10MHz, ensuring clean audio playback and recording with no audible artifacts. |
| Low-Voltage Data Acquisition | Sample-and-Hold Circuits |
Use Scenario: Multiplexing sensor outputs (e.g., thermistor, photodiode, pressure transducer) into a single ADC input in wearable health monitors. IC Role / Device Role / Timing Role: Precision analog switch with <0.5nA leakage and 0.4Ω RON match - minimizes offset and gain errors across channels. Use Value: Maintains measurement accuracy over temperature (–40°C to +85°C) with <1.5Ω RON flatness variation across full analog range. |
Use Scenario: Isolating hold capacitors from input sources during acquisition phase in precision instrumentation amplifiers. IC Role / Device Role / Timing Role: Fast-switching SPST element with <40ns tOFF and <5pC charge injection - reduces sampling aperture uncertainty. Use Value: Limits voltage step on hold capacitor to <1mV at 1nF load, enabling 12-bit+ effective resolution in low-power S/H designs. |
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 |
|---|---|---|---|
| MAX4738EUD+T | Four normally closed (NC) switches instead of NO; identical RON, bandwidth, and timing specs | Suitable where default-closed signal paths are required (e.g., fail-safe audio mute, power-on default routing) | Select MAX4738EUD+T only when NC behavior is mandatory; not interchangeable without logic inversion |
| TS5A3157DCKR | Lower RON (0.75Ω typ at 3V) but higher on-capacitance (35pF); no guaranteed USB 1.1 skew spec | Better for low-RON general-purpose switching; unsuitable for high-speed USB or low-distortion audio | Prefer TS5A3157DCKR for cost-sensitive, non-USB applications requiring lowest possible conduction loss |
Compared with MAX4737EUD+T, MAX4738EUD+T provides inverted switch logic for safety-critical defaults, while TS5A3157DCKR trades USB timing assurance for lower on-resistance - making MAX4737EUD+T the optimal choice for USB 1.1 and high-fidelity audio routing where skew, THD, and isolation are design-critical.
Availability
MAX4737EUD+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, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX4737EUD+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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and consumer applications.
The MAX4737EUD+T belongs to Maxim's precision analog switch product line, engineered for low-distortion, high-bandwidth signal routing in battery-powered USB and audio systems where signal integrity and power efficiency are paramount.
FAQ
What is the maximum supply voltage rating for MAX4737EUD+T?
The MAX4737EUD+T has an absolute maximum supply voltage (V+) of +6.0V, but its specified operational range is +1.8V to +5.5V. Operating within this range ensures guaranteed performance for on-resistance, timing, and leakage parameters. Exceeding +5.5V may cause permanent damage or parametric degradation, even if below the +6.0V absolute limit.
Does MAX4737EUD+T support bidirectional analog signal flow?
Yes, MAX4737EUD+T supports fully bidirectional analog signal flow on all COM_, NO_, and NC_ pins. Its CMOS-based SPST architecture imposes no directionality - signals can pass from COM to NO or NO to COM with identical RON, capacitance, and distortion characteristics, making it ideal for symmetric audio and sensor interfaces.
Can MAX4737EUD+T be used in USB 2.0 applications?
No, MAX4737EUD+T is specified and characterized only for USB 1.1 (12Mbps) compliance. Its >300MHz –3dB bandwidth and <2ns skew meet USB 1.1 requirements, but it lacks the signal integrity, ESD robustness, and impedance control needed for USB 2.0's 480Mbps data rate. Use dedicated USB 2.0 switches for high-speed applications.
What is the thermal resistance (θJA) of the MAX4737EUD+T TSSOP package?
The MAX4737EUD+T in 14-pin TSSOP has a junction-to-ambient thermal resistance (θJA) of 158°C/W, derived from its 500mW maximum continuous power dissipation at +70°C ambient and 6.3mW/°C derating above that temperature. This value assumes standard JEDEC 2-layer board conditions and guides heatsinking decisions in high-density layouts.
How does the logic input voltage tolerance work on MAX4737EUD+T?
MAX4737EUD+T logic inputs (IN1–IN4) tolerate voltages from 0V to +5.5V regardless of V+ supply level - e.g., they accept +5V logic signals even when powered from +3.3V or +1.8V. This eliminates external level shifters in mixed-voltage systems and simplifies interface with legacy controllers or FPGAs operating at higher I/O voltages.
MAX4737EUD+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- 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:
- 14-TSSOP
MAX4737EUD+T FAQ
1.How can I place an order for MAX4737EUD+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4737EUD+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 MAX4737EUD+T reliable?
The price and inventory of MAX4737EUD+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4737EUD+T is usually 5 days.
3.What payment methods are accepted for MAX4737EUD+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4737EUD+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4737EUD+T?
MAX4737EUD+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4737EUD+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 MAX4737EUD+T?
For technical support, including MAX4737EUD+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4737EUD+T requirements.
6.How does Aetrix verify that MAX4737EUD+T is sourced from the original manufacturer or authorized distributors?
All MAX4737EUD+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 MAX4737EUD+T meets industry standards.
7.What is the process for return or replacement of MAX4737EUD+T?
All MAX4737EUD+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4737EUD+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 MAX4737EUD+T part is unused and in its original packaging.
Return procedure for MAX4737EUD+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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