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Analog Devices Inc./Maxim Integrated MAX4741EUA-T
- Part No.:
- MAX4741EUA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4741EUA-T.pdf
- Description:
- IC SW SPST-NOX2 800MOHM 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
MAX4741EUA-T from Maxim Integrated is a dual normally open (NO) single-pole/single-throw (SPST) analog switch IC operating from a single +1.6V to +3.6V supply, featuring 0.8Ω max on-resistance at +3V, 24ns turn-on time, and rail-to-rail analog signal handling. It delivers <1µW quiescent power and supports 150mA continuous current per channel in battery-powered audio routing and low-voltage data-acquisition systems.
For engineers reviewing the MAX4741EUA-T datasheet, MAX4741EUA-T pinout, MAX4741EUA-T application, or MAX4741EUA-T equivalent, key selection criteria include verified RON flatness (0.18Ω max), 1.8V CMOS logic compatibility at +3V supply, break-before-make absence (distinguishing it from MAX4743), and µMAX package thermal derating (4.5mW/°C above +70°C).
Technical Context
The MAX4741EUA-T uses CMOS switch architecture enabling bidirectional, rail-to-rail analog signal switching across GND to V+ with minimal RON variation over voltage and temperature. Its dual NO configuration is controlled by independent digital inputs (IN1, IN2) referenced to the same V+ supply.
Switching dynamics are characterized by tightly specified tON (24ns max) and tOFF (16ns max) at +3V with 50Ω/35pF load, while leakage currents remain below ±5nA (COMOFF, NOOFF) across –40°C to +85°C. Charge injection is 28pC typical, supporting precision signal routing without significant transient error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 0.8Ω max at V+ = +3V, enabling ≤120mV drop at 150mA channel current for low-loss signal path integrity |
| RON Flatness | 0.18Ω max over full analog signal range (0V to V+), ensuring consistent gain and linearity in audio/data paths |
| Turn-On/Off Time | tON = 24ns max, tOFF = 16ns max (V+ = +3V, RL = 50Ω, CL = 35pF), supporting >10MHz switching in multiplexed systems |
| Analog Signal Range | Rail-to-rail (0V to V+), allowing direct interface with ADCs, DACs, and op-amps without level-shifting circuitry |
| Logic Compatibility | 1.8V CMOS input thresholds (VIH = 1.4V, VIL = 0.5V) at +3V supply, compatible with standard low-voltage microcontrollers |
| Supply Voltage Range | +1.6V to +3.6V single supply, supporting Li-ion (3.0–3.6V) and dual-cell alkaline (2.4–3.2V) battery operation |
| Quiescent Current | 0.2µA typical at V+ = +3.6V, minimizing standby power in always-on portable devices |
Pinout & Package
MAX4741EUA-T is housed in an 8-pin µMAX package (U8-1), measuring 3.05mm × 3.05mm × 1.05mm, with exposed pad for thermal enhancement and JEDEC-standard footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | NO1 / NO2 | Normally open analog terminals - connect only when corresponding IN1/IN2 is high; isolated otherwise |
| 2, 7 | COM1 / COM2 | Common analog ports - serve as bidirectional signal entry/exit points for each SPST switch |
| 3, 6 | IN2 / IN1 | Digital control inputs - TTL/CMOS-compatible; drive switches independently without inter-channel coupling |
| 4, 5 | GND | Ground reference for analog and digital domains - must be low-impedance for leakage and noise control |
| 7, 1 | V+ | Single positive supply input - powers both analog switch core and logic interface; requires 0.1µF bypass to GND |
Key Features
| Feature | Design Value |
|---|---|
| Low on-resistance matching | 0.08Ω max RON mismatch between channels ensures balanced signal paths in differential or dual-channel applications |
| Rail-to-rail analog capability | Supports full V+ to GND signal swing without clipping or distortion, critical for audio line-level and sensor interfaces |
| Ultra-low quiescent power | <1µW total supply current enables multi-year battery life in IoT endpoint sensors and wearables |
| High off-isolation | –55dB at 1MHz prevents crosstalk between active and inactive channels in dense PCB layouts |
| Low charge injection | 28pC typical minimizes voltage glitches during switching, preserving accuracy in precision ADC front-ends |
Applications
| Audio Signal Routing | Portable Data Acquisition |
|---|---|
|
Use Scenario: Selecting between multiple microphone inputs or headphone outputs in Bluetooth headsets and voice-controlled remotes. IC Role / Device Role / Timing Role: Dual NO analog switch routing unidirectional audio paths with minimal THD (0.02% typical) and no audible pop/click. Use Value: Enables compact, low-power audio multiplexing without external biasing or level shifters due to rail-to-rail operation and 0.8Ω RON. |
Use Scenario: Multiplexing sensor signals (thermistor, accelerometer, ambient light) into a shared ADC channel in handheld medical monitors. IC Role / Device Role / Timing Role: Low-leakage (<±5nA) analog switch isolating high-impedance sensors during idle cycles to prevent measurement drift. Use Value: Maintains signal fidelity across –40°C to +85°C with <0.18Ω RON flatness, eliminating gain error in calibrated sensor chains. |
| Battery Power Path Control | PCMCIA/CompactFlash Interface |
|
Use Scenario: Managing charge/discharge paths between primary Li-ion and backup coin cell in GPS trackers during sleep/wake transitions. IC Role / Device Role / Timing Role: Low-RON SPST switch enabling/disabling power rails with <120mV drop at 150mA, reducing thermal load. Use Value: Supports 150mA continuous current per channel and withstands ±300mA pulsed peaks, ensuring robust battery switching under load transients. |
Use Scenario: Isolating I/O lines between host controller and PCMCIA card during hot-insertion to prevent bus contention. IC Role / Device Role / Timing Role: Fast-switching (24ns tON) analog gate controlling data/address lines before and after card detection logic asserts. Use Value: Delivers –110dB crosstalk and –55dB off-isolation at 1MHz, preventing signal corruption during card enumeration sequences. |
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 |
|---|---|---|---|
| MAX4742EUA-T | Two normally closed (NC) switches instead of NO; identical RON, timing, and package | Suitable where default-closed signal paths are required (e.g., fail-safe sensor monitoring) | Select MAX4742EUA-T only when NC behavior is mandatory; not interchangeable without schematic revision |
| TMUX1574DBVR | Lower RON (0.5Ω typ), wider supply (1.08–3.6V), but higher leakage (±20nA) and no µMAX package | Better for ultra-low-drop applications but less suitable for extended temperature industrial use due to leakage drift | Prefer TMUX1574DBVR for sub-1Ω RON priority; retain MAX4741EUA-T for guaranteed –40°C to +85°C leakage performance and µMAX footprint |
Compared with MAX4742EUA-T (NC variant) and TMUX1574DBVR (lower-RON alternative), the MAX4741EUA-T uniquely balances NO functionality, industry-standard µMAX packaging, and validated –40°C to +85°C leakage stability-making it optimal for space-constrained, battery-operated systems requiring predictable default-open behavior.
Availability
MAX4741EUA-T is available at Aetrix Electronics and suitable for audio signal routing, portable data-acquisition systems, and battery power path control requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for MAX4741EUA-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, mixed-signal, and power-management ICs for demanding industrial, medical, and communications applications.
The MAX4741EUA-T belongs to Maxim's low-voltage analog switch family, engineered specifically for rail-to-rail signal integrity and ultra-low power consumption in portable and battery-critical systems.
FAQ
What is the maximum continuous current rating for each channel of the MAX4741EUA-T?
The MAX4741EUA-T supports 150mA continuous current per channel (COM1/NO1 and COM2/NO2) under all operating conditions within its –40°C to +85°C temperature range. This rating is validated across the full supply range (+1.6V to +3.6V) and aligns with its 0.8Ω max on-resistance specification at +3V, resulting in ≤120mV voltage drop at rated current.
Does the MAX4741EUA-T support break-before-make switching?
No, the MAX4741EUA-T does not implement break-before-make (BBM) switching. BBM is exclusive to the MAX4743 variant (one NO + one NC). The MAX4741EUA-T contains two normally open switches with independent control; simultaneous activation of both channels may cause momentary overlap, so external timing control is required if BBM behavior is needed.
Can the MAX4741EUA-T operate from a +1.8V supply, and what performance changes occur?
Yes, the MAX4741EUA-T operates from +1.8V (within its +1.6V to +3.6V range). At +1.8V, RON increases to 2.5Ω max (vs. 0.8Ω at +3V), tON/tOFF extend to 35ns/30ns max, and logic thresholds adjust to VIH = 1.0V/VIL = 0.4V. All other parameters-including leakage, bandwidth, and temperature range-remain fully specified.
What is the thermal derating specification for the MAX4741EUA-T in its µMAX package?
The MAX4741EUA-T in the 8-pin µMAX package has a thermal derating factor of 4.5mW/°C above +70°C, with a maximum continuous power dissipation of 362mW at +70°C ambient. This reflects its package construction and is critical for thermal design in enclosed or high-density layouts.
Is the MAX4741EUA-T pin-compatible with the MAX4743EUA-T?
No, the MAX4741EUA-T and MAX4743EUA-T are not pin-compatible. Although both use the same µMAX package and share V+, GND, COM1, COM2, IN1, and IN2 pin locations, the MAX4741EUA-T assigns pins 1 and 8 to NO1 and NO2, whereas the MAX4743EUA-T assigns pin 1 to NO1 and pin 5 to NC2-requiring PCB layout changes for substitution.
MAX4741EUA-T 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-T FAQ
1.How can I place an order for MAX4741EUA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4741EUA-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 MAX4741EUA-T reliable?
The price and inventory of MAX4741EUA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4741EUA-T is usually 5 days.
3.What payment methods are accepted for MAX4741EUA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4741EUA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4741EUA-T?
MAX4741EUA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4741EUA-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 MAX4741EUA-T?
For technical support, including MAX4741EUA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4741EUA-T requirements.
6.How does Aetrix verify that MAX4741EUA-T is sourced from the original manufacturer or authorized distributors?
All MAX4741EUA-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 MAX4741EUA-T meets industry standards.
7.What is the process for return or replacement of MAX4741EUA-T?
All MAX4741EUA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4741EUA-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 MAX4741EUA-T part is unused and in its original packaging.
Return procedure for MAX4741EUA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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