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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:2,909
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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 low-voltage data acquisition systems.
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 - not applicable), TTL/CMOS logic compatibility, -40°C to +85°C industrial temperature range, and µMAX-8 package footprint for space-constrained PCB layouts.
Technical Context
The MAX4542EUA implements two independent NC 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 +3.3V, +5V, or +12V supplies without external level shifting.
Each channel features matched on-resistance (ΔRON ≤ 2Ω), flat on-resistance over voltage (RFLAT(ON) ≤ 6Ω), and ultra-low leakage (≤10nA at +85°C), making it suitable for precision sample-and-hold and multiplexed sensor front-ends where channel-to-channel crosstalk and offset drift must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2.7V to +12V single supply - supports direct integration with 3.3V, 5V, and 12V system rails without auxiliary regulators |
| Max RON | 60Ω at +5V - ensures minimal signal attenuation and gain error in precision analog paths |
| RON Matching | 2Ω max between channels - enables accurate differential or ratiometric measurements across dual-switch configurations |
| Charge Injection | 5pC max - reduces settling error and pedestal distortion in sampling circuits and DAC output switching |
| Leakage Current | 10nA max at +85°C - preserves accuracy in high-impedance sensor interfaces and long-integration-time applications |
| Switching Speed | tON = 35ns, tOFF = 25ns at +5V - supports >10MHz multiplexing rates in high-speed data acquisition |
| ESD Protection | 2000V per Method 3015.7 - provides robust handling during board assembly and field operation |
Pinout & Package
MAX4542EUA is housed in an 8-pin µMAX package (3.0mm × 3.0mm, 0.8mm height), pin-compatible with industry-standard SO-8 and TDFN-8 footprints but with reduced board area. Exposed pad is not present in µMAX variant.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | COM1 | Analog common terminal for Channel 1 - bidirectional path connected to NC1 when IN1 = LOW |
| 2 | IN1 | Digital control input for Channel 1 - active-low logic; switch closes (COM1–NC1) when driven LOW |
| 3 | GND | Ground reference for analog and digital circuitry - must be low-impedance return path for signal integrity |
| 4 | NC2 | Normally closed terminal for Channel 2 - internally connected to COM2 when IN2 = LOW |
| 5 | COM2 | Analog common terminal for Channel 2 - bidirectional path connected to NC2 when IN2 = LOW |
| 6 | IN2 | Digital control input for Channel 2 - active-low logic; switch closes (COM2–NC2) when driven LOW |
| 7 | V+ | Positive supply input - powers internal CMOS switch array and logic; accepts +2.7V to +12V |
| 8 | NC1 | Normally closed terminal for Channel 1 - internally connected to COM1 when IN1 = LOW |
Key Features
| Feature | Design Value |
|---|---|
| Dual NC SPST topology | Provides fail-safe closed-path default state - maintains signal continuity during power loss or logic reset |
| 6Ω max RON flatness | Ensures consistent gain and linearity across full analog input range (GND to V+), critical for wide-dynamic-range sensors |
| TTL/CMOS logic compatibility | Accepts standard 0V/3.3V or 0V/5V logic thresholds without external biasing - simplifies interface with microcontrollers and FPGAs |
| 5µW typical supply current | Enables multi-year battery life in portable medical devices and remote IoT nodes with intermittent switching duty cycles |
| Pin compatibility with MAX323/324/325 | Allows drop-in replacement in legacy designs using older Maxim analog switches - reduces redesign effort and qualification time |
Applications
| Medical Instrumentation | Industrial Data Acquisition |
|---|---|
Use Scenario: Multiplexing thermocouple or RTD inputs into a shared ADC channel in handheld diagnostic equipment. IC Role / Device Role / Timing Role: Dual NC SPST switch routes analog sensor signals while maintaining default connectivity during MCU boot or sleep states. Use Value: Eliminates need for external pull-up/pull-down networks and ensures no open-circuit condition during power transitions - improving measurement reliability and safety compliance. | Use Scenario: Selecting between multiple 4–20mA current-loop transmitters feeding a PLC analog input module. IC Role / Device Role / Timing Role: Precision analog switch isolates individual transmitter outputs under microcontroller control, preserving signal integrity across varying loop loads. Use Value: 2Ω RON matching minimizes channel-to-channel gain mismatch, enabling calibrated multi-sensor correlation without per-channel software correction. |
| Portable Test Equipment | Automotive Body Control |
Use Scenario: Routing audio test tones or calibration waveforms through different filter banks in a handheld oscilloscope accessory. IC Role / Device Role / Timing Role: Low-charge-injection (5pC) dual switch enables glitch-free waveform switching without post-switch settling delays. Use Value: Fast 35ns turn-on time supports real-time reconfiguration of signal paths during automated test sequences - reducing overall test cycle time. | Use Scenario: Managing redundant sensor inputs (e.g., dual brake pressure sensors) in ADAS domain controllers. IC Role / Device Role / Timing Role: Fail-safe NC configuration ensures primary sensor path remains active unless explicitly overridden by fault-handling firmware. Use Value: 10nA max leakage at +85°C prevents erroneous voltage shifts in high-impedance sensor bias networks - maintaining functional safety integrity per ISO 26262 ASIL-B requirements. |
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 | Same electrical specs; SO-8 package (4.9mm × 6.0mm) vs. µMAX-8 (3.0mm × 3.0mm) | Preferred for prototyping or manual soldering due to larger pitch (1.27mm) and visibility; less suitable for high-density portable designs | Select MAX4542ESA when board assembly uses through-hole or standard SOIC reflow processes and space is not constrained. |
| ADG722BRMZ | 2.5V to 5.5V supply only; 4Ω typical RON; 25ns switching; no guaranteed -40°C to +85°C spec in base grade | Better RON and speed at 5V, but incompatible with 12V or wide-supply systems; requires separate logic-level translation for 3.3V control | Choose ADG722BRMZ only if operating strictly at 3.3V/5V and requiring sub-5Ω RON, with full thermal validation across target temperature range. |
Compared with MAX4542ESA, the MAX4542EUA saves >70% PCB area and supports identical performance in industrial temperature grades; versus ADG722BRMZ, it offers wider supply flexibility and guaranteed operation across automotive-grade thermal extremes - at the cost of slightly higher RON.
Availability
MAX4542EUA is available at Aetrix Electronics and suitable for battery-operated instrumentation, industrial data acquisition, and portable test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
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 was engineered specifically for low-voltage, single-supply analog signal routing - prioritizing low leakage, matched RON, and rail-to-rail operation in space- and power-constrained systems.
FAQ
What is the maximum analog signal voltage range supported by the MAX4542EUA?
The MAX4542EUA supports analog signals from GND to V+, with full rail-to-rail operation verified across its +2.7V to +12V supply range. At +5V supply, the analog input range is 0V to +5V; at +12V, it extends to 0V to +12V - confirmed in Electrical Characteristics tables and Typical Operating Characteristics plots (Figure 1).
Does the MAX4542EUA support break-before-make switching?
No, the MAX4542EUA does not implement break-before-make functionality. That feature is explicitly specified only for the MAX4543 and MAX4544 variants in the datasheet's Features section and Truth Tables. The MAX4542EUA is a dual NC SPST device with independent channel control and no interlocked timing.
Can the MAX4542EUA be used with a 3.3V logic controller while powered from a 5V supply?
Yes, the MAX4542EUA accepts TTL/CMOS logic inputs across its full supply range. When V+ = +5V, VINH = 2.4V and VINL = 0.8V are guaranteed - fully compatible with 3.3V GPIO outputs. No level-shifting circuitry is required, as confirmed in the Logic Levels section and Electrical Characteristics table.
What is the thermal resistance (θJA) of the MAX4542EUA µMAX package?
The MAX4542EUA µMAX package has a junction-to-ambient thermal resistance of 4.10mW/°C above +70°C, corresponding to θJA ≈ 244°C/W. This value is derived from the "Continuous Power Dissipation" specification: 330mW at +70°C, derating linearly at 4.10mW/°C - consistent with JEDEC JESD51-2 standards for this package type.
Is the MAX4542EUA pin-compatible with the MAX323 series?
Yes, the MAX4542EUA is explicitly stated as pin-compatible with MAX323/MAX324/MAX325 in the datasheet's Features section. Pin functions (V+, IN1, COM1, NC1, GND, IN2, COM2, NC2) align directly across all three packages - enabling drop-in replacement in existing designs without layout modification.
MAX4542EUA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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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