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Analog Devices Inc./Maxim Integrated MAX4542EKA
- Part No.:
- MAX4542EKA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SOT-23-8
- Datasheet:
-
MAX4542EKA.pdf
- Description:
- IC SWITCH SPST-NCX2 60OHM SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:3,065
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Product details
Overview
MAX4542EKA from Maxim Integrated is a precision dual single-pole/single-throw (SPST) analog switch with normally closed (NC) configuration, 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 audio and sensor front-ends.
For engineers reviewing the MAX4542EKA datasheet, MAX4542EKA pinout, MAX4542EKA application, or MAX4542EKA equivalent, key selection criteria include guaranteed break-before-make timing (not applicable), NC-only switching topology, SOT23-8 package constraints, and leakage performance at +85°C (10nA max).
Technical Context
The MAX4542EKA implements CMOS transmission-gate architecture with TTL/CMOS-compatible logic inputs and rail-to-rail analog signal handling (0V to V+). Its dual NC topology ensures both switches default to closed state when control inputs are low, supporting fail-safe signal paths in power-sensitive systems.
It features internal ESD protection (>2000V per Method 3015.7), operates across –40°C to +85°C, and maintains low dynamic power consumption (<5µW) via sub-1µA supply current. No break-before-make functionality is implemented-unlike MAX4543/MAX4544 variants-making it unsuitable for SPDT crosspoint or signal multiplexing requiring isolation during transition.
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 systems without level-shifting. |
| RON (max) | 60Ω at +5V-ensures minimal insertion loss and voltage drop in precision analog signal paths. |
| RON Matching | 2Ω max between channels-critical for matched gain/attenuation in differential or dual-path circuits. |
| Charge Injection | 5pC max-reduces glitch-induced settling errors in sample-and-hold and ADC front-end applications. |
| Leakage (85°C) | 10nA max COM off-leakage-preserves accuracy in high-impedance sensor interfaces and battery monitoring. |
| Switching Speed | tON = 35ns, tOFF = 25ns at +5V-enables use in medium-speed data acquisition and audio routing. |
| ESD Rating | >2000V per Method 3015.7-provides robustness against handling and board-level transients. |
Pinout & Package
SOT23-8 package (top mark: AAAF), 1.5mm × 2.3mm body, exposed pad (EP) recommended to be connected to V+ per datasheet.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | COM1 | Analog common terminal for Channel 1-bidirectional, supports rail-to-rail signal swing (0V to V+). |
| 2 | IN1 | Digital control input for Channel 1-TTL/CMOS compatible; low = NC closed, high = NC open. |
| 3 | GND | Ground reference for logic and analog sections-must be low-impedance connection to minimize noise coupling. |
| 4 | NC2 | Normally closed terminal for Channel 2-connects to COM2 when IN2 = low; open when IN2 = high. |
| 5 | COM2 | Analog common terminal for Channel 2-electrically isolated from COM1; shares same V+ and GND domains. |
| 6 | IN2 | Digital control input for Channel 2-independent of IN1; enables asynchronous dual-channel control. |
| 7 | V+ | Positive supply input-must be applied before analog signals to prevent latch-up per sequencing guidelines. |
| 8 | NC1 | Normally closed terminal for Channel 1-completes NC path with COM1; no internal connection to other pins. |
Key Features
| Feature | Design Value |
|---|---|
| Dual NC SPST topology | Provides fail-closed signal path for safety-critical or default-on functions (e.g., bias enable, sensor standby). |
| Low 5pC charge injection | Minimizes voltage step errors in precision sampling circuits-critical for 12-bit+ ADC front-ends. |
| 60Ω max RON at +5V | Ensures <0.1% gain error in 10kΩ source/load impedance networks-suitable for instrumentation amplifiers. |
| 2Ω max RON matching | Enables accurate differential signal routing without channel-to-channel gain skew. |
| TTL/CMOS logic compatibility | Accepts 0.8V/2.4V thresholds at +5V; supports direct interfacing with microcontrollers and FPGAs. |
Applications
| Battery-Operated Sensor Interface | Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing thermistor, RTD, and pressure sensor outputs into a shared ADC channel in portable medical devices. IC Role / Device Role / Timing Role: Dual NC switch routes analog sensor voltages to ADC input while maintaining low-leakage, low-RON paths during active measurement cycles. Use Value: 10nA max off-leakage at +85°C prevents drift in high-impedance sensor bridges; 60Ω RON introduces <0.06% gain error with 100kΩ source impedance. | Use Scenario: Selecting between two microphone preamp outputs before feeding a codec in a handheld voice recorder. IC Role / Device Role / Timing Role: Dual NC configuration allows simultaneous mute of both inputs when control lines are high-enabling clean zero-crossing switching. Use Value: 5pC max charge injection limits pop/click artifacts; 35ns tON supports real-time audio path reconfiguration without audible interruption. |
| Industrial Process Monitoring | Test Equipment Signal Conditioning |
Use Scenario: Isolating faulted current-sense shunt resistors in a 4–20mA loop transmitter during diagnostics. IC Role / Device Role / Timing Role: NC topology ensures shunt remains connected to measurement circuit by default-only opening upon confirmed fault detection. Use Value: Fail-safe behavior eliminates need for external pull-up/down components; 2000V ESD rating withstands field-handling events. | Use Scenario: Calibrating DAC output offsets by switching known reference voltages into the feedback path of an op-amp-based calibration circuit. IC Role / Device Role / Timing Role: Precision RON matching (2Ω max) ensures identical gain error across reference channels-critical for multi-point calibration linearity. Use Value: 2Ω RON match reduces differential offset error to <10µV at 1mA test current-meeting Class I metrology 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 |
|---|---|---|---|
| MAX4541EKA-T | NO (normally open) configuration instead of NC; identical RON, leakage, and speed specs. | Requires inverted logic control for fail-open behavior-unsuitable where default closure is mandatory. | Select MAX4541EKA-T only if system design requires default-open signal path. |
| ADG722BRMZ | 2.5V to 5.5V supply range (vs. +2.7V to +12V); 4Ω typical RON; no guaranteed RON matching spec. | Limited to low-voltage systems; lacks matching guarantee for differential applications. | Choose ADG722BRMZ only for 3.3V-only designs where ultra-low RON outweighs supply flexibility and matching needs. |
Compared with MAX4541EKA-T, the MAX4542EKA provides fail-closed operation essential for safety interlocks; versus ADG722BRMZ, it offers wider supply range and guaranteed matching-making it superior for industrial and mixed-voltage embedded systems.
Availability
MAX4542EKA is available at Aetrix Electronics and suitable for battery-operated sensor interfaces, audio signal routing, industrial process monitoring, and test equipment signal conditioning requiring stable component supply across extended temperature ranges.
Supply support for MAX4542EKA 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 and mixed-signal ICs for industrial, medical, and communications applications.
The MAX4541–MAX4544 family targets low-voltage, single-supply analog switching-optimized for battery life, signal integrity, and reliability in portable and harsh-environment systems.
FAQ
What is the maximum supply voltage rating for the MAX4542EKA?
The MAX4542EKA has an absolute maximum supply voltage of +13V, with recommended operating range from +2.7V to +12V. Exceeding +13V risks permanent damage. The device is fully specified at +5V and +3.3V, delivering 60Ω max RON and 5pC max charge injection within these conditions. Always apply V+ before analog signals to prevent latch-up, per the datasheet's power-sequencing guidance for the MAX4542EKA.
Does the MAX4542EKA support break-before-make switching?
No, the MAX4542EKA does not implement break-before-make functionality. It is a dual NC SPST switch with independent control inputs (IN1, IN2), but no internal timing delay between channel transitions. Break-before-make is explicitly guaranteed only for MAX4543 and MAX4544 variants per the datasheet. For applications requiring isolation during switching-such as SPDT multiplexing-the MAX4542EKA is not suitable; consider MAX4544EUT-T instead.
What is the on-resistance flatness specification for the MAX4542EKA?
The MAX4542EKA specifies 6Ω max RON flatness over the full analog signal range (0V to V+) at +5V supply. This means the variation in on-resistance across the entire input voltage swing is ≤6Ω-critical for minimizing harmonic distortion in audio paths and gain nonlinearity in precision instrumentation. Flatness is measured with 1mA test current and is guaranteed across the –40°C to +85°C operating temperature range, ensuring consistent performance in varying environmental conditions for the MAX4542EKA.
Can the MAX4542EKA operate from a +3.3V supply?
Yes, the MAX4542EKA is fully operational from a +3.3V supply (within its +2.7V to +12V range). At +3.3V, typical on-resistance increases to 125Ω (max 275Ω), turn-on time extends to 80ns (typ), and leakage remains ≤10nA at +85°C. Logic inputs remain compatible-driving IN1/IN2 to 0V or +3.3V meets TTL/CMOS thresholds. System designers must verify signal integrity under these conditions, as higher RON may affect gain accuracy in high-impedance circuits using the MAX4542EKA.
What package type and marking code does the MAX4542EKA use?
MAX4542EKA uses the SOT23-8 package with top-side marking "AAAF". The package measures 1.5mm × 2.3mm, features an exposed pad (EP) that must be connected to V+, and complies with MO229 / WEEC standards. Pin 1 is COM1, and pin orientation follows standard SOT23-8 layout-confirmed by Figure 11 in the MAX4542EKA datasheet. This compact footprint supports high-density PCB layouts in space-constrained portable electronics.
MAX4542EKA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- 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:
- SOT-23-8
MAX4542EKA FAQ
1.How can I place an order for MAX4542EKA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4542EKA 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 MAX4542EKA reliable?
The price and inventory of MAX4542EKA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4542EKA is usually 5 days.
3.What payment methods are accepted for MAX4542EKA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4542EKA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4542EKA?
MAX4542EKA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4542EKA 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 MAX4542EKA?
For technical support, including MAX4542EKA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4542EKA requirements.
6.How does Aetrix verify that MAX4542EKA is sourced from the original manufacturer or authorized distributors?
All MAX4542EKA 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 MAX4542EKA meets industry standards.
7.What is the process for return or replacement of MAX4542EKA?
All MAX4542EKA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4542EKA, 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 MAX4542EKA part is unused and in its original packaging.
Return procedure for MAX4542EKA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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