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Analog Devices Inc./Maxim Integrated MAX4541CUA+
- Part No.:
- MAX4541CUA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4541CUA+.pdf
- Description:
- IC SWITCH SPST-NOX2 60OHM 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:408
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Product details
Overview
The MAX4541CUA+ from Maxim Integrated is a precision dual single-pole/single-throw (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 +2.7V to +12V supply, delivers 60Ω max on-resistance at +5V, 2Ω max RON matching between channels, 5pC max charge injection, and guarantees break-before-make switching only in SPDT variants (not applicable here). It is commonly used in audio/video switching, sample-and-hold circuits, and +3V/+5V ADC/DAC interfaces.
For engineers reviewing the MAX4541CUA+ datasheet, MAX4541CUA+ pinout, MAX4541CUA+ application, or MAX4541CUA+ equivalent, key selection criteria include verified RON flatness (6Ω max), leakage performance (10nA max at +85°C), TTL/CMOS logic compatibility, SOT23-8 package footprint, and absence of guaranteed break-before-make behavior in this NO/NO configuration.
Technical Context
The MAX4541CUA+ implements a CMOS-based transmission-gate architecture optimized for bidirectional analog signal switching across the full supply rail (GND to V+). Its control inputs accept rail-to-rail logic levels and are TTL-compatible when powered from +5V, enabling direct interfacing with microcontrollers and FPGAs without level-shifting.
It features integrated ESD protection (>2000V per Method 3015.7), low dynamic power consumption (<5µW), and tightly controlled channel-to-channel parametric matching-critical for precision multiplexing and instrumentation applications where gain/offset errors must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2.7V to +12V single supply - supports direct integration into 3.3V and 5V systems without auxiliary rails |
| RON (max) | 60Ω at +5V - ensures minimal signal attenuation and voltage drop in low-current analog paths |
| RON Matching | 2Ω max between channels - enables matched gain/attenuation in differential or dual-path signal chains |
| Charge Injection | 5pC max - reduces settling error and glitch energy in sample-and-hold and data acquisition circuits |
| tON/tOFF | 150ns/100ns max - supports high-speed multiplexing up to ~3MHz without significant timing skew |
| Leakage (85°C) | 10nA max COM on-leakage - preserves accuracy in high-impedance sensor front-ends and battery-monitoring nodes |
| ESD Rating | >2000V HBM - provides robust handling margin during PCB assembly and field operation |
Pinout & Package
The MAX4541CUA+ is housed in an 8-pin µMAX® package (pin-compatible with SO and TDFN variants), measuring 3.0mm × 3.0mm × 0.8mm with exposed pad (EP) connected to V+. This thermally enhanced, space-constrained package supports high-density portable designs while maintaining manufacturability in standard reflow processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (COM1) | Analog common terminal, Channel 1 | Bidirectional signal path node; connects to NO1 when IN1 = high |
| 2 (IN1) | Digital control input, Channel 1 | TTL/CMOS-compatible logic input; active-high enables COM1–NO1 path |
| 3 (GND) | Ground reference | Primary return path for analog signals and supply current; must be low-impedance |
| 4 (NC2) | No-connect terminal | Internally unconnected; no electrical function - leave floating or ground per layout best practice |
| 5 (COM2) | Analog common terminal, Channel 2 | Bidirectional signal path node; connects to NO2 when IN2 = high |
| 6 (IN2) | Digital control input, Channel 2 | TTL/CMOS-compatible logic input; active-high enables COM2–NO2 path |
| 7 (V+) | Positive supply input | Single power rail for analog and digital circuitry; must be bypassed with ≥0.1µF ceramic capacitor |
| 8 (NO1) | Normally open terminal, Channel 1 | Switched output for Channel 1; remains open until IN1 asserts high |
Key Features
| Feature | Design Value |
|---|---|
| Low RON flatness | 6Ω max variation over full analog signal range - maintains consistent gain/attenuation across input voltage swing |
| Ultra-low leakage | 100pA max at +25°C, 10nA max at +85°C - preserves signal integrity in high-Z medical and sensor interfaces |
| Rail-to-rail analog range | Supports GND to V+ signals - eliminates need for external level-shifting in mixed-supply systems |
| Fast switching | 35ns tON/25ns tOFF typical at +5V - enables time-critical sampling and real-time signal routing |
| Logic compatibility | TTL/CMOS inputs with 0.8V/2.4V thresholds at +5V - simplifies interface to legacy and modern digital controllers |
Applications
| Audio Signal Routing | Portable Instrumentation |
|---|---|
Use Scenario: Selecting between multiple microphone or line-level inputs in a handheld audio recorder. IC Role / Device Role / Timing Role: Dual SPST analog switch routing analog audio paths under microcontroller GPIO control. Use Value: 60Ω RON and 5pC charge injection minimize THD and pop/click artifacts during channel switching. | Use Scenario: Multiplexing sensor outputs (e.g., thermocouple, RTD, pH electrode) into a shared ADC front-end. IC Role / Device Role / Timing Role: Precision analog multiplexer providing matched channel resistance and low leakage for accurate ratiometric measurements. Use Value: 2Ω RON matching and 10nA max leakage at +85°C reduce measurement offset and drift across temperature. |
| Medical Vital Signs Monitor | Industrial Data Acquisition |
Use Scenario: Isolating ECG lead inputs during calibration or lead-off detection in a wearable patient monitor. IC Role / Device Role / Timing Role: Low-power, high-isolation analog switch enabling safe signal path reconfiguration without disturbing bias networks. Use Value: <5µW quiescent power extends battery life; >2000V ESD rating protects against clinical environment discharge events. | Use Scenario: Switching between reference voltages and sensor bridges in a programmable logic controller (PLC) analog input module. IC Role / Device Role / Timing Role: Robust analog switch supporting industrial supply rails (+12V) and surviving harsh electromagnetic environments. Use Value: +2.7V to +12V operation allows direct use with PLC backplane supplies; 60Ω RON stable across voltage range ensures consistent scaling. |
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 |
|---|---|---|---|
| MAX4542CUA+ | Two normally closed (NC) switches instead of NO; identical RON, leakage, and timing specs | Suitable where default-closed signal paths are required (e.g., fail-safe sensor monitoring) | Select MAX4542CUA+ only if NC behavior is mandatory; pinout and footprint are identical |
| ADG721BRMZ-REEL | 3.3V/5V-only supply (no +12V support); 4Ω RON typ but 8Ω max; 1.5pC charge injection | Better suited for ultra-low-distortion, low-voltage portable devices where 12V operation is unnecessary | Choose ADG721BRMZ-REEL for lower charge injection and tighter RON tolerance in 3.3V systems; not drop-in due to different supply range and pinout |
Compared with MAX4542CUA+, the MAX4541CUA+ provides normally open default state essential for power-gated or safety-critical paths; versus ADG721BRMZ-REEL, it offers wider supply flexibility and proven robustness in industrial +12V environments, albeit with higher charge injection.
Availability
MAX4541CUA+ is available at Aetrix Electronics and suitable for audio/video switching, portable instrumentation, and medical vital signs monitoring requiring stable component supply across extended product lifecycles.
Supply support for MAX4541CUA+ 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, communications, and computing markets.
The MAX4541–MAX4544 family was designed specifically for low-voltage, single-supply analog signal routing in space-constrained, battery-operated equipment - emphasizing precision, low power, and robust ESD tolerance.
FAQ
What is the maximum supply voltage rating for the MAX4541CUA+?
The MAX4541CUA+ has an absolute maximum supply voltage of +13V, with recommended operating range from +2.7V to +12V. Operation beyond +12V risks exceeding safe operating area limits and may degrade long-term reliability. The device's internal protection diodes clamp signals to V+ ±0.3V, so analog inputs must remain within that window relative to V+ and GND.
Does the MAX4541CUA+ support break-before-make switching?
No, the MAX4541CUA+ does not guarantee break-before-make operation. That feature is explicitly specified only for the MAX4543 and MAX4544 SPDT variants. As a dual NO SPST device, the MAX4541CUA+ switches each channel independently, and simultaneous conduction during transition cannot be ruled out - critical in applications requiring strict signal isolation during reconfiguration.
What is the thermal performance of the MAX4541CUA+ in its µMAX package?
The MAX4541CUA+ in the 8-pin µMAX package has a thermal resistance θJA of 244°C/W (derating 4.10mW/°C above +70°C), with a maximum continuous power dissipation of 330mW at +70°C ambient. For reliable operation at elevated temperatures, ensure adequate PCB copper area under the exposed pad and maintain ambient below +85°C per the C-grade specification.
Can the MAX4541CUA+ be used with 3.3V logic control signals when powered from +5V?
Yes, the MAX4541CUA+ accepts 3.3V logic high signals when V+ = +5V, as its input high threshold (VINH) is guaranteed at 2.4V min. However, for lowest power and optimal noise immunity, driving IN1/IN2 rail-to-rail (0V to +5V) is recommended. With 3.3V logic, ensure the driver can source/sink sufficient current to meet the 1µA max input leakage requirement.
Is the MAX4541CUA+ pin-compatible with older Maxim analog switches like the MAX323?
Yes, the MAX4541CUA+ is explicitly stated as pin-compatible with the MAX323, MAX324, and MAX325 in the same µMAX, SO, and DIP packages. This allows direct replacement in legacy designs without PCB modification, provided the improved specifications (lower RON, reduced charge injection, higher ESD rating) do not introduce unintended interactions in the existing circuit.
MAX4541CUA+ 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:
- 2
- On-State Resistance (Max):
- 60Ohm
- Channel-to-Channel Matching (ΔRon):
- 800mOhm
- Voltage - Supply, Single (V+):
- 2.7V ~ 12V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 100ns, 75ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF, 8pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -90dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
MAX4541CUA+ FAQ
1.How can I place an order for MAX4541CUA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4541CUA+ 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 MAX4541CUA+ reliable?
The price and inventory of MAX4541CUA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4541CUA+ is usually 5 days.
3.What payment methods are accepted for MAX4541CUA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4541CUA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4541CUA+?
MAX4541CUA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4541CUA+ 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 MAX4541CUA+?
For technical support, including MAX4541CUA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4541CUA+ requirements.
6.How does Aetrix verify that MAX4541CUA+ is sourced from the original manufacturer or authorized distributors?
All MAX4541CUA+ 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 MAX4541CUA+ meets industry standards.
7.What is the process for return or replacement of MAX4541CUA+?
All MAX4541CUA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4541CUA+, 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 MAX4541CUA+ part is unused and in its original packaging.
Return procedure for MAX4541CUA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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