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Analog Devices Inc./Maxim Integrated MAX4737EUD+
- Part No.:
- MAX4737EUD+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4737EUD+.pdf
- Description:
- IC SW SPST-NOX4 4.5OHM 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:536
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Product details
Overview
The MAX4737EUD+ from Maxim Integrated is a quad single-pole/single-throw (SPST) analog switch optimized for USB 1.1 and audio signal routing, featuring 4.5Ω max on-resistance at +3V, <40ns turn-off time, and 15pF on-channel capacitance. It operates from a single +1.8V to +5.5V supply, supports rail-to-rail analog signals, and delivers <0.5nA leakage current at +25°C - enabling low-distortion, high-fidelity switching in portable audio and battery-powered USB interfaces.
For engineers reviewing the MAX4737EUD+ datasheet, MAX4737EUD+ pinout, MAX4737EUD+ application, or MAX4737EUD+ equivalent, key selection criteria include guaranteed 4.5Ω RON (max) at 3V, break-before-make timing (1ns), -80dB crosstalk at 10MHz, and UCSP/TSSOP package compatibility for space-constrained PCB layouts.
Technical Context
The MAX4737EUD+ implements four independent normally open (NO) SPST switches using CMOS process technology, with fully specified operation across -40°C to +85°C and supply voltages from +1.8V to +5.5V. Its digital inputs are +1.8V logic compatible, and analog paths handle rail-to-rail signals without degradation in on-resistance flatness (1.2Ω max).
It achieves <80ns tON and <40ns tOFF at +2.7V with 300Ω load and 35pF capacitance, while maintaining 2ns max differential skew and >300MHz -3dB bandwidth - critical for preserving signal integrity in full-speed USB (12Mbps) data paths and stereo audio channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 4.5Ω max at +3V supply - ensures minimal voltage drop and power loss in low-voltage analog signal paths. |
| RON Matching | 0.4Ω max between channels at +3V - enables precise channel-to-channel signal consistency in multi-path audio or data acquisition. |
| Turn-Off Time (tOFF) | <40ns at +2.7V - supports fast switching in time-critical USB packet routing and sample-and-hold control. |
| Crosstalk | -80dB at 10MHz - prevents audible interference or data corruption between adjacent switched audio or communication lines. |
| On-Channel Capacitance | 15pF - minimizes high-frequency loading and preserves bandwidth in >10MHz analog signal chains. |
| Leakage Current | <0.5nA at +25°C - maintains signal accuracy in high-impedance sensor interfaces and precision sample-and-hold circuits. |
| Supply Range | +1.8V to +5.5V single supply - eliminates need for dual supplies in mixed-voltage portable systems. |
Pinout & Package
The MAX4737EUD+ is housed in a 14-pin TSSOP package (package code U14+1), occupying 5mm × 4.4mm footprint with 0.65mm lead pitch. This surface-mount package supports standard reflow assembly and provides mechanical robustness for industrial and consumer applications.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN1 | Digital control input for switch 1 - active-high logic enables NO1 path when driven ≥1.4V (at +3V supply). |
| 2 | IN2 | Digital control input for switch 2 - compatible with +1.8V logic and tolerant up to +5.5V regardless of V+. |
| 3 | IN3 | Digital control input for switch 3 - allows independent enable/disable of each SPST channel without shared logic resources. |
| 4 | IN4 | Digital control input for switch 4 - supports asynchronous switching sequences in multi-signal routing applications. |
| 5 | COM1 | Common analog terminal for switch 1 - bidirectional node connecting to either NO1 or system ground reference. |
| 6 | COM2 | Common analog terminal for switch 2 - handles rail-to-rail signals from 0V to V+, enabling flexible signal path configuration. |
| 7 | COM3 | Common analog terminal for switch 3 - maintains ≤1.2Ω RON flatness over full analog range, critical for linearity in audio paths. |
| 8 | COM4 | Common analog terminal for switch 4 - supports simultaneous switching of stereo left/right or differential data pairs. |
| 9 | NO1 | Normally open analog output for switch 1 - connects to COM1 only when IN1 is high; isolates signal path otherwise. |
| 10 | NO2 | Normally open analog output for switch 2 - exhibits matched RON (≤0.4Ω difference) with NO1 for balanced channel performance. |
| 11 | NO3 | Normally open analog output for switch 3 - contributes to <2ns differential skew across all four channels at 10MHz. |
| 12 | NO4 | Normally open analog output for switch 4 - enables compact 4-channel routing without external multiplexing logic. |
| 13 | GND | Digital ground reference - must be connected to system ground plane to ensure stable logic thresholds and minimize noise coupling. |
| 14 | V+ | Positive supply input - accepts +1.8V to +5.5V; bypassing with 0.1µF capacitor to GND suppresses switching transients. |
Key Features
| Feature | Design Value |
|---|---|
| USB 1.1 compliance | Guaranteed <2ns propagation delay and <0.5ns skew change at 12Mbps - meets full-speed USB timing margins without external compensation. |
| Rail-to-rail signal handling | Analog range spans 0V to V+ - eliminates level-shifting circuitry in battery-powered systems operating down to +1.8V. |
| Low distortion | 0.03% THD at audio frequencies - preserves fidelity in headphone amplifiers and microphone preamp signal chains. |
| High off-isolation | -55dB at 10MHz - prevents signal bleed between inactive channels in multi-source audio mixers or data-acquisition front ends. |
| +1.8V logic compatibility | VIH = +1.4V / VIL = +0.5V at +3V supply - interoperates directly with low-voltage microcontrollers and FPGAs without level translators. |
Applications
| USB 1.1 Data Switching | Portable Audio Routing |
|---|---|
Use Scenario: Selecting between two USB upstream ports in a dual-host docking station. IC Role / Device Role / Timing Role: Quad SPST analog switch providing bidirectional, low-skew signal path control for D+ and D- lines. Use Value: 4.5Ω RON and <40ns tOFF ensure minimal insertion loss and meet USB full-speed setup/hold timing requirements. |
Use Scenario: Routing stereo line-out signals between headphone jack and speaker amplifier in a tablet PC. IC Role / Device Role / Timing Role: Low-distortion analog switch enabling zero-crossing mute transitions and channel isolation. Use Value: 0.03% THD and -80dB crosstalk prevent audible artifacts and inter-channel leakage during playback. |
| Low-Voltage Data Acquisition | Sample-and-Hold Circuits |
Use Scenario: Multiplexing sensor outputs (e.g., thermistor, photodiode) into a 12-bit ADC in a wearable health monitor. IC Role / Device Role / Timing Role: Precision analog switch with sub-nA leakage minimizing offset errors in high-impedance front ends. Use Value: <0.5nA leakage at +25°C and 15pF CON reduce settling time and maintain DC accuracy across temperature. |
Use Scenario: Isolating hold capacitor from input source during acquisition phase in a precision instrumentation amplifier stage. IC Role / Device Role / Timing Role: Fast-switching SPST element controlling charge transfer timing with minimal charge injection (5pC). Use Value: 5pC charge injection and <80ns tON enable accurate sampling of mV-level signals without pedestal error. |
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 |
|---|---|---|---|
| MAX4737ETE | Same electrical specs; packaged in 4mm × 4mm 16-pin thin QFN instead of 14-pin TSSOP. | Better thermal dissipation (2000mW PD) and lower profile - preferred for high-density, thermally constrained layouts. | Select MAX4737ETE when board space permits smaller footprint and higher power handling is required. |
| MAX4737EBE+T | Same electrical specs; uses 2mm × 2mm 16-bump UCSP package with 0.5mm bump pitch. | Ultra-compact size ideal for wearables and hearing aids; requires specialized assembly but saves >60% board area vs. TSSOP. | Choose MAX4737EBE+T for miniaturized designs where PCB real estate is critical and UCSP reflow capability exists. |
Compared with MAX4737ETE and MAX4737EBE+T, the MAX4737EUD+ offers standardized TSSOP assembly compatibility, moderate thermal performance (500mW), and proven manufacturability - making it optimal for cost-sensitive, medium-volume consumer electronics production.
Availability
The MAX4737EUD+ is available at Aetrix Electronics and suitable for USB interface modules, portable audio subsystems, and low-voltage data-acquisition systems requiring stable component supply and long-term sourcing continuity.
Supply support for MAX4737EUD+ 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+ belongs to Maxim's precision analog switch product line, engineered specifically for low-RON, low-capacitance signal routing in USB 1.1 and portable audio systems where signal integrity and power efficiency are critical.
FAQ
What is the maximum supply voltage rating for the MAX4737EUD+?
The MAX4737EUD+ has an absolute maximum supply voltage (V+) of +6.0V, but its functional operating range is specified from +1.8V to +5.5V. Operation beyond +5.5V risks permanent damage, and all electrical characteristics - including 4.5Ω RON and <40ns tOFF - are guaranteed only within the +1.8V to +5.5V range per the datasheet.
Does the MAX4737EUD+ support rail-to-rail analog signal switching?
Yes, the MAX4737EUD+ supports rail-to-rail analog signal handling: its analog terminals (COM_, NO_) operate from 0V to V+ across the full temperature range. This allows direct interfacing with sensors, audio codecs, and USB transceivers without external level-shifting circuitry, preserving signal fidelity in battery-powered systems.
What is the logic voltage compatibility of the MAX4737EUD+ digital inputs?
The MAX4737EUD+ digital inputs accept logic levels up to +5.5V regardless of supply voltage - meaning IN1–IN4 can be driven by +1.8V, +3.3V, or +5V logic sources. At +3V supply, VIH is +1.4V and VIL is +0.5V; at +5V supply, VIH rises to +2.0V and VIL to +0.8V, ensuring reliable interfacing with diverse controller families.
How does the MAX4737EUD+ achieve low crosstalk in multi-channel audio routing?
The MAX4737EUD+ achieves -80dB crosstalk at 10MHz through optimized internal layout, low 15pF on-channel capacitance, and high off-isolation (-55dB). These features minimize capacitive coupling between adjacent switched paths, preventing audible leakage between left/right stereo channels or interfering with sensitive analog sensor inputs sharing the same PCB layer.
Is the MAX4737EUD+ pin-compatible with other variants in the MAX4737/MAX4738/MAX4739 family?
No - the MAX4737EUD+, MAX4738EUD, and MAX4739EUD share identical pinouts in the 14-pin TSSOP package, but differ functionally: MAX4737EUD has four NO switches, MAX4738EUD has four NC switches, and MAX4739EUD combines two NO and two NC switches. Pin compatibility exists, but logic polarity and default states are not interchangeable without schematic review.
MAX4737EUD+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- 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+ FAQ
1.How can I place an order for MAX4737EUD+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4737EUD+ 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+ reliable?
The price and inventory of MAX4737EUD+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4737EUD+ is usually 5 days.
3.What payment methods are accepted for MAX4737EUD+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4737EUD+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4737EUD+?
MAX4737EUD+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4737EUD+ 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+?
For technical support, including MAX4737EUD+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4737EUD+ requirements.
6.How does Aetrix verify that MAX4737EUD+ is sourced from the original manufacturer or authorized distributors?
All MAX4737EUD+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX4737EUD+?
All MAX4737EUD+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4737EUD+, 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+ part is unused and in its original packaging.
Return procedure for MAX4737EUD+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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