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Analog Devices Inc./Maxim Integrated MAX4761ETX+
- Part No.:
- MAX4761ETX+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 36-WFQFN Exposed Pad
- Datasheet:
-
MAX4761ETX+.pdf
- Description:
- IC SWITCH SPDT X 8 3.5OHM 36TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:172
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Product details
Overview
The MAX4761ETX+ from Maxim Integrated is an octal SPDT analog switch IC designed for high-speed data and audio signal routing in compact portable systems. It operates from a single +1.8V to +5.5V supply, delivers 2.0Ω (typ) on-resistance, 54pF (typ) COM-on capacitance, and supports 150MHz (typ) -3dB bandwidth - enabling USB 2.0 full-speed (12Mbps) signal switching in handheld devices.
For engineers reviewing the MAX4761ETX+ datasheet, MAX4761ETX+ pinout, MAX4761ETX+ application, or MAX4761ETX+ equivalent, this page provides verified electrical parameters, package-specific terminal mapping, real-world use scenarios, and validated alternative options for audio/data multiplexing designs requiring rail-to-rail signal handling and sub-0.2ns skew.
Technical Context
The MAX4761ETX+ implements eight independent SPDT switches with a single logic control input (INA) and active-low enable (EN), allowing simultaneous or selective channel activation. Its CMOS architecture ensures rail-to-rail analog signal handling (0V to V+) and bidirectional signal flow across NO_, NC_, and COM_ terminals.
It features guaranteed 0.2Ω (typ) channel-to-channel on-resistance matching and 0.8Ω (typ) on-resistance flatness over the full signal range, with break-before-make timing of 2ns (typ) and charge injection of only 15pC (typ) - critical for low-distortion audio and glitch-free data switching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +1.8V to +5.5V - supports single-supply operation across Li-ion battery (3.0–4.2V), 3.3V, and 5V systems without level-shifting. |
| On-Resistance (RON) | 2.0Ω (typ) at V+ = 2.7V - enables low insertion loss (<0.1dB) in 50Ω/600Ω audio/data paths. |
| -3dB Bandwidth | 150MHz (typ) - sufficient for USB 2.0 full-speed (12Mbps) differential signaling and wideband audio up to 20kHz with minimal attenuation. |
| COM On-Capacitance | 54pF (typ) - minimizes loading on high-impedance sources and preserves signal integrity in fast-switching applications. |
| THD | 0.03% (typ) at 20Hz–20kHz - meets high-fidelity audio routing requirements in smartphones and headsets. |
| Turn-On/Off Time | 150ns / 60ns (typ, MAX4761) - supports burst-mode data switching with deterministic timing control. |
| Operating Temperature | -40°C to +85°C - qualified for industrial and consumer portable equipment environments. |
Pinout & Package
MAX4761ETX+ is supplied in a 36-pin TQFN-EP (6mm × 6mm) package with exposed pad (EP) connected to GND. Pin numbering follows standard top-view orientation; EP must be soldered to a thermal pad on PCB for optimal power dissipation and EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A1) | NC1 | Analog switch 1 normally closed terminal - connects to COM1 when INA = LOW (MAX4761/MAX4761A logic polarity). |
| 2 (B2) | COM2 | Common terminal for switch 2 - bidirectional I/O node shared between NO2 and NC2 paths. |
| 3 (A2) | NC2 | Analog switch 2 normally closed terminal - forms complementary path to NO2 under control of INA and EN. |
| 4 (A3) | INA | Primary logic control input - HIGH enables NOx connection; LOW enables NCx connection (all 8 switches). |
| 5 (C3,D4) | V+ | Positive supply - bypass with 0.1µF capacitor to GND near pin to suppress switching noise coupling. |
| 11,14,17,29,32,35 | N.C. | No-connect pins - must remain unconnected per design; no internal connection or function. |
| 22 (F4) | EN | Active-low enable - drives all 8 switches into high-impedance state when HIGH; required for power-gating in sleep modes. |
| 23 (C4,D3) | GND | Ground reference - connect to low-impedance system ground plane; ties to EP for thermal and EMI control. |
| 36 (B1) | COM1 | Common terminal for switch 1 - primary signal path node; supports rail-to-rail analog voltage swing (0V to V+). |
| EP | Exposed Pad | Thermal and electrical ground - must be soldered to PCB ground plane for RθJA = 47.9°C/W and EMC compliance. |
Key Features
| Feature | Design Value |
|---|---|
| Octal SPDT configuration | Eight independent, bidirectional SPDT switches enable flexible signal routing without external buffering or direction control logic. |
| Rail-to-rail signal handling | Supports analog inputs from 0V to V+ across full temperature range - eliminates clipping in battery-powered audio interfaces. |
| Low 0.2ns (typ) skew | Ensures matched propagation delay across parallel channels - critical for differential USB 2.0 and stereo audio pair switching. |
| 0.03% THD (typ) | Preserves audio fidelity in headset/speaker switching paths without perceptible harmonic distortion. |
| 1.8V logic-compatible inputs | IN_ and EN accept 0V/+5.5V logic regardless of V+ - simplifies interface with mixed-voltage SoCs and PMICs. |
Applications
| USB 2.0 Full-Speed Switching | Smartphone Audio Routing |
|---|---|
Use Scenario: Dynamic reconfiguration of USB D+/D− lines between host and peripheral roles in dual-role devices. IC Role / Device Role / Timing Role: Octal SPDT switch providing concurrent control of both differential pairs plus VBUS/ID lines via discrete logic. Use Value: Enables single-port USB OTG functionality with <2ns break-before-make timing to prevent bus contention. |
Use Scenario: Selecting between earpiece, speaker, and headset outputs in mobile handsets based on accessory detection. IC Role / Device Role / Timing Role: Low-THD analog switch routing mono/stereo audio paths while maintaining DC-coupled bias integrity. Use Value: Delivers 0.03% THD and 2.0Ω RON to preserve SNR >95dB in 16-bit audio playback chains. |
| Notebook Docking Multiplexer | PDA Data Channel Selection |
Use Scenario: Sharing high-speed data lines (e.g., SDIO, UART, I²C) between base and dock in clamshell notebooks. IC Role / Device Role / Timing Role: Signal-routing hub managing up to eight independent bidirectional channels with common enable control. Use Value: 150MHz bandwidth and 54pF COM capacitance ensure <1% signal degradation at 48MHz SDIO clock rates. |
Use Scenario: Isolating legacy serial peripherals (RS-232, IrDA) from main processor during low-power suspend states. IC Role / Device Role / Timing Role: Low-leakage (±25nA typ) analog switch providing hardware-level channel gating under firmware control. Use Value: COM off-leakage <25nA prevents unintended wake-up events and extends battery life in always-on monitoring modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4761AETX+ | Lower 1.8V logic threshold (VIH = 1.4V min); reduced supply current (12µA max at 5.5V) | Better suited for ultra-low-power battery operation where 1.8V GPIO control is mandatory | Select MAX4761AETX+ when interfacing with 1.8V microcontrollers and minimizing quiescent current is critical |
| TMUX1574RTWR | 4-channel SPDT, 0.5Ω RON, 1.65–5.5V supply, 16-pin QFN - not pin-compatible | Limited channel count requires two devices for octal coverage; higher RON increases insertion loss in RF-sensitive paths | Choose TMUX1574RTWR only for space-constrained designs accepting higher RON and reduced channel density |
Compared with MAX4761ETX+, the MAX4761AETX+ offers tighter logic thresholds and lower I+ for energy-sensitive applications, while the TMUX1574RTWR trades channel count and on-resistance for smaller footprint - making MAX4761ETX+ optimal for balanced performance in 8-channel USB/audio routing.
Availability
MAX4761ETX+ is available at Aetrix Electronics and suitable for USB 2.0 interface switching, smartphone audio path management, and notebook docking station signal routing requiring stable component supply across industrial temperature ranges.
Supply support for MAX4761ETX+ 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 precision analog, mixed-signal, and high-frequency ICs for industrial, communications, and consumer applications.
The MAX4761ETX+ belongs to Maxim's high-bandwidth analog switch product line, engineered specifically for low-distortion, low-skew signal routing in portable USB and audio systems operating from single Li-ion or regulated supplies.
FAQ
What is the maximum analog signal voltage range supported by the MAX4761ETX+?
The MAX4761ETX+ supports rail-to-rail analog signals from 0V to V+, where V+ ranges from +1.8V to +5.5V. This allows direct interfacing with unbuffered audio codecs, USB transceivers, and sensor outputs without level-shifting circuitry - confirmed across the full -40°C to +85°C operating range per Electrical Characteristics table.
Does the MAX4761ETX+ require external power-supply decoupling capacitors?
Yes, the MAX4761ETX+ requires a 0.1µF ceramic capacitor placed between V+ (pin 5) and GND (pin 23) as close as possible to the device. This is specified in the Applications Information section to suppress switching noise and maintain noise margin - failure to implement it may cause signal integrity issues in high-speed data paths.
How does the EN pin function on the MAX4761ETX+?
The EN pin on the MAX4761ETX+ is an active-low enable that places all eight SPDT switches into a high-impedance state when driven HIGH. When EN is LOW, the switches respond to the INA control signal. This feature enables hardware-level power gating in battery-operated systems - verified in the Functional Diagram and Pin Description sections.
Is the MAX4761ETX+ compatible with USB 2.0 full-speed (12Mbps) signaling?
Yes, the MAX4761ETX+ is explicitly USB 1.1 and USB 2.0 full-speed compliant per its Features list and 150MHz -3dB bandwidth specification. Its 54pF COM-on capacitance, <0.2ns skew, and 2.0Ω RON ensure minimal jitter and insertion loss on D+/D− differential pairs - validated in Typical Operating Characteristics and Applications Information.
What is the thermal requirement for the exposed pad (EP) on the MAX4761ETX+ TQFN package?
The exposed pad (EP) on the MAX4761ETX+ TQFN package must be soldered to a PCB ground plane to achieve thermal resistance θJA = 47.9°C/W. Per Package Information and Absolute Maximum Ratings, EP is internally connected to GND and serves as primary thermal path - omitting this connection risks junction temperature exceeding +150°C under continuous 100mA per channel operation.
MAX4761ETX+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 8
- On-State Resistance (Max):
- 3.5Ohm
- Channel-to-Channel Matching (ΔRon):
- 200mOhm
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 140ns, 50ns
- -3db Bandwidth:
- 150MHz
- Charge Injection:
- 15pC
- Channel Capacitance (CS(off), CD(off)):
- 25pF
- Current - Leakage (IS(off)) (Max):
- 5nA
- Crosstalk:
- -95dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 36-TQFN (6x6)
MAX4761ETX+ FAQ
1.How can I place an order for MAX4761ETX+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4761ETX+ 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 MAX4761ETX+ reliable?
The price and inventory of MAX4761ETX+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4761ETX+ is usually 5 days.
3.What payment methods are accepted for MAX4761ETX+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4761ETX+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4761ETX+?
MAX4761ETX+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4761ETX+ 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 MAX4761ETX+?
For technical support, including MAX4761ETX+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4761ETX+ requirements.
6.How does Aetrix verify that MAX4761ETX+ is sourced from the original manufacturer or authorized distributors?
All MAX4761ETX+ 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 MAX4761ETX+ meets industry standards.
7.What is the process for return or replacement of MAX4761ETX+?
All MAX4761ETX+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4761ETX+, 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 MAX4761ETX+ part is unused and in its original packaging.
Return procedure for MAX4761ETX+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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