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Analog Devices Inc./Maxim Integrated MAX4542EUA+
- Part No.:
- MAX4542EUA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4542EUA+.pdf
- Description:
- IC SWITCH SPST-NCX2 60OHM 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:123
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Product details
Overview
MAX4542EUA+ from Maxim Integrated is a precision dual normally closed (NC) SPST analog switch operating from a single +2.7V to +12V supply. It delivers 60Ω max on-resistance, 2Ω max RON matching between channels, and 5pC max charge injection-enabling high-fidelity signal routing in battery-powered instrumentation and portable medical devices.
For engineers reviewing the MAX4542EUA+ datasheet, MAX4542EUA+ pinout, MAX4542EUA+ application, or MAX4542EUA+ equivalent, key selection criteria include guaranteed break-before-make timing (for MAX4543/MAX4544 only-excluded here), low leakage (<10nA at +85°C), TTL/CMOS logic compatibility, and µMAX-8 package suitability for space-constrained PCB layouts.
Technical Context
The MAX4542EUA+ implements two independent NC-configured analog switches with bidirectional signal paths, supporting rail-to-rail analog voltages from GND to V+. Its CMOS control inputs accept logic levels compatible with TTL at +5V and rail-to-rail operation at other supply voltages (+3.3V, +12V).
It features internal protection diodes limiting analog input voltage to V+ + 0.3V and −0.3V, with absolute maximum ratings including ±10mA continuous terminal current and >2000V ESD per Method 3015.7. No break-before-make functionality is implemented-unlike MAX4543/MAX4544-making it suitable for non-overlap-critical switching paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +12V single supply - enables direct interface with 3.3V, 5V, and 12V systems without level shifting |
| On-Resistance (RON) | 60Ω max at +5V - ensures minimal signal attenuation and gain error in precision analog paths |
| RON Matching | 2Ω max between channels - supports matched gain/attenuation in differential or dual-path circuits |
| Charge Injection | 5pC max - reduces glitch-induced settling errors in sample-and-hold and multiplexed ADC front-ends |
| Leakage Current | 10nA max at +85°C - preserves accuracy in high-impedance sensor interfaces and battery-monitoring circuits |
| Switching Speed | tON = 35ns, tOFF = 25ns at +5V - supports audio-band and medium-speed data acquisition |
| ESD Protection | >2000V per Method 3015.7 - provides robust handling during board assembly and field operation |
Pinout & Package
The MAX4542EUA+ is housed in an 8-pin µMAX package (pin-compatible with SO-8 and TDFN-8 variants), measuring 3.0mm × 3.0mm × 0.8mm with exposed pad (EP) connected to V+ for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply input | Accepts +2.7V to +12V; EP must be soldered to V+ plane for thermal performance |
| IN1 | Digital control input 1 | Active-low logic controls Channel 1 NC path; TTL/CMOS compatible at +5V |
| COM2 | Analog common terminal 2 | Bidirectional node for Channel 2; connects to NC2 when IN2 = low |
| NC2 | Normally closed terminal 2 | Connected to COM2 when IN2 = low; open when IN2 = high |
| GND | Ground reference | Return path for supply and logic; must be low-impedance for noise immunity |
| IN2 | Digital control input 2 | Active-low logic controls Channel 2 NC path; independent of IN1 |
| COM1 | Analog common terminal 1 | Bidirectional node for Channel 1; connects to NC1 when IN1 = low |
| NC1 | Normally closed terminal 1 | Connected to COM1 when IN1 = low; open when IN1 = high |
Key Features
| Feature | Design Value |
|---|---|
| Dual NC SPST topology | Provides fail-safe closed-path behavior on power loss-critical for safety interlocks and default-on monitoring |
| Low 5µW quiescent power | Extends battery life in portable test equipment and handheld diagnostics without compromising speed |
| 6Ω max RON flatness | Maintains consistent gain across full analog signal range (GND to V+), reducing distortion in audio and sensor signals |
| TTL/CMOS logic compatibility | Eliminates need for external level shifters when interfacing with microcontrollers and FPGAs |
| Pin compatibility with MAX323/324/325 | Enables drop-in replacement in legacy designs using older Maxim analog switches |
Applications
| Battery-Powered Instrumentation | Medical Sensor Signal Routing |
|---|---|
Use Scenario: Portable multimeter front-end multiplexing analog signals from multiple sensors (thermocouple, RTD, voltage) into a shared ADC channel. IC Role / Device Role / Timing Role: Dual NC SPST switch isolating unused sensor paths while maintaining default-closed bias for zero-drift calibration cycles. Use Value: 10nA max leakage at +85°C prevents offset drift in high-Z sensor nodes; 5pC charge injection minimizes hold-step error in successive-approximation sampling. | Use Scenario: Ultrasound probe head with multiple transducer elements requiring sequential activation under microcontroller control. IC Role / Device Role / Timing Role: Channel-select switch enabling one transducer element at a time while keeping others disconnected to prevent crosstalk and loading. Use Value: 35ns turn-on time supports pulse-echo timing resolution down to ~10MHz bandwidth; 60Ω RON ensures minimal insertion loss in 50Ω transmit/receive paths. |
| Audio Signal Switching | Industrial Process Monitoring |
Use Scenario: Head-up display (HUD) audio subsystem selecting between Bluetooth, FM radio, and navigation voice prompts. IC Role / Device Role / Timing Role: Low-distortion analog switch routing line-level audio signals without clipping or harmonic generation. Use Value: 6Ω RON flatness preserves frequency response flatness across 20Hz–20kHz; <−90dB crosstalk prevents audible bleed between sources. | Use Scenario: PLC analog I/O module conditioning 4–20mA loop signals before digitization in harsh factory environments. IC Role / Device Role / Timing Role: Isolation switch protecting downstream ADC from transient overvoltage events on field wiring. Use Value: >2000V ESD rating withstands electrostatic discharge during maintenance; 12V max supply tolerance accommodates industrial 10–36V DC rails. |
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 |
|---|---|---|---|
| MAX4542ESA+ | SO-8 package (4.9mm × 6.0mm); same electrical specs and temperature range (−40°C to +85°C) | Better thermal dissipation and hand-solderability; less space-efficient than µMAX | Select for prototyping, manual assembly, or higher-power operation where µMAX thermal limits apply |
| ADG1412BRUZ | Single-supply +5V to +16.5V; 1.3Ω typical RON; no NC configuration-SPST NO only | Lower on-resistance but requires external pull-down for NC behavior; not functionally identical | Select only if NC functionality is implemented externally and ultra-low RON is prioritized over default-closed safety |
Compared with MAX4542ESA+, the MAX4542EUA+ saves >60% board area in compact portable designs; compared with ADG1412BRUZ, it provides native NC behavior essential for fail-safe signal routing without added discrete components.
Availability
MAX4542EUA+ is available at Aetrix Electronics and suitable for battery-powered instrumentation, medical sensor signal routing, audio switching, and industrial process monitoring requiring stable component supply and long-term lifecycle support.
Supply support for MAX4542EUA+ 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 MAX4541–MAX4544 family targets low-voltage, single-supply analog switching in space- and power-constrained systems-emphasizing low leakage, fast switching, and rail-to-rail signal integrity.
FAQ
What is the maximum supply voltage rating for the MAX4542EUA+?
The MAX4542EUA+ has an absolute maximum supply voltage of +13V, with recommended operating range from +2.7V to +12V. Exceeding +13V risks permanent damage. At +12V operation, the device maintains 60Ω max RON, 5pC max charge injection, and full TTL/CMOS logic compatibility-making it suitable for industrial 12V systems without external regulation.
Does the MAX4542EUA+ support break-before-make switching?
No, the MAX4542EUA+ does not implement break-before-make timing. It is a dual normally closed (NC) SPST switch with independent IN1/IN2 control-meaning each channel closes when its input is low and opens when high, with no intentional delay between opening and closing. Break-before-make is only guaranteed for MAX4543 and MAX4544 variants per the datasheet.
What is the leakage current specification of the MAX4542EUA+ at elevated temperature?
The MAX4542EUA+ guarantees ≤10nA max COMON and COMOFF leakage current at +85°C, tested per datasheet conditions (V+ = +5.5V, VCOM = 1V or 4.5V). This low leakage enables accurate DC-coupled measurements in high-impedance sensor interfaces, such as thermistor or pH electrode conditioning circuits, even in hot industrial environments.
Can the MAX4542EUA+ operate from a +3.3V supply?
Yes, the MAX4542EUA+ operates fully specified from +3.0V to +3.6V. At +3.3V, typical RON is 125Ω (max 275Ω), tON is 80ns (max 400ns), and leakage remains ≤10nA at +85°C. Logic inputs remain rail-to-rail compatible-IN1/IN2 should be driven 0V/3.3V-and power consumption stays below 5µW, making it ideal for 3.3V portable systems.
Is the MAX4542EUA+ pin-compatible with older Maxim analog switches?
Yes, the MAX4542EUA+ is pin-compatible with MAX323, MAX324, and MAX325 in the µMAX-8 package. Pin functions (V+, IN1, COM2, NC2, GND, IN2, COM1, NC1) match exactly, allowing direct replacement without PCB modification-provided the NC topology meets the functional requirement, as MAX323/324/325 offer both NO and NC variants.
MAX4542EUA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPST - NC
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
MAX4542EUA+ FAQ
1.How can I place an order for MAX4542EUA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4542EUA+ 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 MAX4542EUA+ reliable?
The price and inventory of MAX4542EUA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4542EUA+ is usually 5 days.
3.What payment methods are accepted for MAX4542EUA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4542EUA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4542EUA+?
MAX4542EUA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4542EUA+ 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 MAX4542EUA+?
For technical support, including MAX4542EUA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4542EUA+ requirements.
6.How does Aetrix verify that MAX4542EUA+ is sourced from the original manufacturer or authorized distributors?
All MAX4542EUA+ 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 MAX4542EUA+ meets industry standards.
7.What is the process for return or replacement of MAX4542EUA+?
All MAX4542EUA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4542EUA+, 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 MAX4542EUA+ part is unused and in its original packaging.
Return procedure for MAX4542EUA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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