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Analog Devices Inc./Maxim Integrated MAX4741EUA
- Part No.:
- MAX4741EUA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4741EUA.pdf
- Description:
- IC SW SPST-NOX2 800MOHM 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:68,905
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Product details
Overview
MAX4741EUA from Maxim Integrated is a dual SPST analog switch with two normally open (NO) channels, designed for low-voltage signal routing in battery-powered and portable systems. It operates from a single +1.6V to +3.6V supply, delivers 0.8Ω max on-resistance at +3V, 24ns turn-on time, and consumes <1µW quiescent power - enabling high-fidelity audio/video switching and precision data-acquisition paths.
For engineers reviewing the MAX4741EUA datasheet, MAX4741EUA pinout, MAX4741EUA application, or MAX4741EUA equivalent, key selection criteria include rail-to-rail analog signal handling, 150mA continuous current capability, 1.8V CMOS logic compatibility at +3V supply, and µMAX package thermal performance (362mW at +70°C).
Technical Context
The MAX4741EUA uses CMOS switch architecture to support bidirectional, rail-to-rail analog signals (GND to V+) with minimal RON variation across voltage and temperature. Its dual NO configuration enables independent channel control via separate IN1/IN2 logic inputs, each compatible with 1.8V CMOS thresholds when V+ = +3V.
Switching dynamics are optimized for high-speed applications: tON = 24ns and tOFF = 16ns (max) at V+ = +3V, RL = 50Ω, CL = 35pF; charge injection is limited to 28pC, and off-isolation reaches –55dB at 1MHz - critical for low-crosstalk multiplexing in communications circuits and audio paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +1.6V to +3.6V single supply - supports direct integration into Li-ion and coin-cell powered systems without level-shifting. |
| On-Resistance (RON) | 0.8Ω max at +3V - enables <10mV drop at 100mA, preserving signal integrity in low-voltage sensor and DAC output paths. |
| RON Matching | 0.08Ω max between channels - ensures matched gain/attenuation in differential or dual-path signal conditioning. |
| Turn-On/Off Time | tON = 24ns, tOFF = 16ns max - suitable for >10MHz digital signal multiplexing and fast-settling ADC front-ends. |
| Logic Input Compatibility | 1.8V CMOS compatible at +3V supply - interfaces directly with modern low-voltage microcontrollers and FPGAs. |
| Continuous Current Rating | ±150mA per channel - sufficient for driving headphones, small relays, or analog sensor excitation circuits. |
| Quiescent Supply Current | 0.2µA typical at +3.6V - extends battery life in always-on monitoring and sleep-mode wake-up circuits. |
Pinout & Package
MAX4741EUA is housed in an 8-pin µMAX package (U8-1), measuring 3.05mm × 3.05mm × 1.05mm, with exposed pad for thermal enhancement and rated for –40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | NO1 / NO2 | Normally open analog terminals - connect only when corresponding IN1/IN2 is high; isolated from COM when off. |
| 2, 7 | COM1 / COM2 | Common analog I/O nodes - serve as bidirectional signal path junctions between NO and system circuitry. |
| 3, 6 | IN2 / IN1 | Digital control inputs - TTL/CMOS-compatible; high = closed path (NO→COM), low = open circuit. |
| 4, 5 | GND | Analog/digital ground reference - must be low-impedance and decoupled with 0.1µF capacitor near V+ pin. |
| 7, 1 | V+ | Positive supply input - powers internal switch array and logic; requires stable regulation within ±0.3V of nominal. |
Key Features
| Feature | Design Value |
|---|---|
| Low on-resistance flatness | 0.18Ω max RFLAT(ON) at +3V - maintains consistent gain/attenuation across full 0–3V analog signal range. |
| Rail-to-rail signal handling | Supports analog inputs from GND to V+ - eliminates clipping in audio line drivers and sensor interface stages. |
| Ultra-low leakage | ±5nA max COM/NO off-leakage at +3.3V - prevents DC error accumulation in high-impedance precision measurement paths. |
| High off-isolation | –55dB at 1MHz - suppresses crosstalk between active and inactive channels in multi-source audio/video routing. |
| Charge injection control | 28pC max - minimizes voltage glitch on sampled nodes, critical for sample-and-hold and switched-capacitor circuits. |
Applications
| Audio Signal Routing | Portable Data Acquisition |
|---|---|
|
Use Scenario: Switching between multiple microphone inputs or headphone outputs in smartphones and wearables. IC Role / Device Role / Timing Role: Dual NO analog switch enabling concurrent or alternating signal path selection under MCU GPIO control. Use Value: 0.8Ω RON and –55dB off-isolation preserve SNR and prevent audible crosstalk during real-time audio routing. |
Use Scenario: Multiplexing sensor outputs (e.g., thermistor, accelerometer, ambient light) into a shared ADC channel. IC Role / Device Role / Timing Role: Low-leakage, rail-to-rail analog switch providing precise, low-distortion signal transfer to ADC front-end. Use Value: ±5nA off-leakage and 0.08Ω RON matching ensure <0.01% gain error and minimal offset drift across channels. |
| Battery Power Management | PCMCIA/CompactFlash Interface |
|
Use Scenario: Isolating backup battery from main power rail or routing charging current in dual-battery systems. IC Role / Device Role / Timing Role: High-current SPST switch managing up to 150mA continuous load with sub-µW standby consumption. Use Value: 150mA rating and <1µW quiescent power extend operational runtime while maintaining safe thermal profile in sealed enclosures. |
Use Scenario: Enabling/disabling I/O lines or voltage domains during PCMCIA card insertion/ejection sequences. IC Role / Device Role / Timing Role: Fast-switching analog gate controlling signal integrity and hot-swap safety in legacy peripheral interfaces. Use Value: 24ns tON/16ns tOFF ensures clean signal enablement before bus arbitration, preventing protocol violations. |
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 |
|---|---|---|---|
| MAX4741EKA | SOT23-8 package (3.0mm × 2.5mm), higher thermal resistance (7.52mW/°C derating), same electrical specs. | Better suited for manual prototyping or space-constrained boards where µMAX reflow is not feasible. | Select MAX4741EKA if board layout requires larger pitch or hand-soldering; no change to schematic or firmware. |
| TS5A23157DRCR | 0.9Ω RON max at +3V, 30ns tON, –52dB off-isolation, 1.65V–5.5V supply range. | Broader supply range supports mixed-voltage systems but trades off speed and isolation vs. MAX4741EUA. | Choose TS5A23157DRCR only when 5.5V tolerance or DRC (SON-10) package is mandatory; verify THD and crosstalk impact. |
Compared with MAX4741EKA and TS5A23157DRCR, the MAX4741EUA offers superior thermal performance in µMAX packaging, tighter RON matching (0.08Ω vs. 0.15Ω), and faster switching - making it optimal for high-density, low-power portable designs demanding precision analog routing.
Availability
MAX4741EUA is available at Aetrix Electronics and suitable for audio signal routing, portable data-acquisition systems, and battery power management requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MAX4741EUA 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, mixed-signal, and power-management ICs for industrial, medical, and portable applications.
The MAX4741 series belongs to Maxim's ultra-low-voltage analog switch product line, engineered specifically for rail-to-rail signal integrity and micropower operation in space- and energy-constrained portable electronics.
FAQ
What is the maximum analog signal voltage range supported by the MAX4741EUA?
The MAX4741EUA supports rail-to-rail analog signals from GND to V+, meaning its full operating range spans 0V to the applied positive supply voltage - up to +3.6V. At +3V supply, this delivers true 0–3V signal handling with minimal RON variation, verified across –40°C to +85°C. This behavior is enabled by CMOS switch architecture and confirmed in the device's Typical Operating Characteristics (Figure toc01/toc02).
Can the MAX4741EUA operate reliably from a 1.8V supply?
Yes, the MAX4741EUA is fully specified for 1.6V to 3.6V single-supply operation. At +1.8V, it maintains functional switching with RON ≤ 5Ω (max), tON ≤ 40ns, and logic inputs compatible with 1.0V VIH/0.4V VIL thresholds. However, RON increases and bandwidth decreases versus +3V operation - design validation at 1.8V is recommended for timing- or resistance-critical paths.
Does the MAX4741EUA require external bypass capacitors?
Yes, a 0.1µF ceramic capacitor placed between V+ and GND, as close as possible to the MAX4741EUA pins, is required for stable operation. This reduces supply noise coupling, improves noise margin, and prevents switching transients from propagating to adjacent circuitry - explicitly recommended in the Applications Information section of the MAX4741EUA datasheet.
Is the MAX4741EUA pin-compatible with other variants in the MAX474x family?
No - while MAX4741EUA, MAX4742EUA, and MAX4743EUA share identical µMAX pinout and package dimensions, their internal switch configurations differ: MAX4741EUA has two NO switches, MAX4742EUA has two NC, and MAX4743EUA has one NO + one NC. Swapping them without schematic revision will cause functional failure due to inverted channel behavior.
What is the thermal performance limit of the MAX4741EUA in µMAX package?
The MAX4741EUA in µMAX package (U8-1) has a continuous power dissipation limit of 362mW at +70°C, with derating at 4.5mW/°C above that temperature. Junction temperature must remain ≤ +150°C; at 150mA per channel and 0.8Ω RON, self-heating is ~18mW - well within safe limits for typical PCB layouts with moderate copper area.
MAX4741EUA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 800mOhm
- Channel-to-Channel Matching (ΔRon):
- 50mOhm
- Voltage - Supply, Single (V+):
- 1.6V ~ 3.6V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 24ns, 16ns
- -3db Bandwidth:
- 100MHz
- Charge Injection:
- 28pC
- Channel Capacitance (CS(off), CD(off)):
- 32pF, 32pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -110dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-µMAX
MAX4741EUA FAQ
1.How can I place an order for MAX4741EUA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4741EUA 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 MAX4741EUA reliable?
The price and inventory of MAX4741EUA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4741EUA is usually 5 days.
3.What payment methods are accepted for MAX4741EUA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4741EUA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4741EUA?
MAX4741EUA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4741EUA 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 MAX4741EUA?
For technical support, including MAX4741EUA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4741EUA requirements.
6.How does Aetrix verify that MAX4741EUA is sourced from the original manufacturer or authorized distributors?
All MAX4741EUA 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 MAX4741EUA meets industry standards.
7.What is the process for return or replacement of MAX4741EUA?
All MAX4741EUA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4741EUA, 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 MAX4741EUA part is unused and in its original packaging.
Return procedure for MAX4741EUA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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