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Analog Devices Inc./Maxim Integrated MAX4542EUA+T
- Part No.:
- MAX4542EUA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4542EUA+T.pdf
- Description:
- IC SWITCH SPST-NCX2 60OHM 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,630
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Product details
Overview
MAX4542EUA+T from Maxim Integrated is a dual SPST analog switch with normally closed (NC) configuration, designed for precision signal routing in low-voltage, single-supply systems. It delivers 60Ω max on-resistance, 2Ω max RON matching between channels, and 5pC max charge injection at +5V supply, enabling high-fidelity switching in battery-powered instrumentation and portable medical devices.
For engineers reviewing the MAX4542EUA+T datasheet, MAX4542EUA+T pinout, MAX4542EUA+T application, or MAX4542EUA+T 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 extended temperature operation, and SOT23-8 package constraints for space-constrained PCB layouts.
Technical Context
The MAX4542EUA+T implements two independent NC-switches controlled by separate digital inputs (IN1, IN2), each connecting COMx to NCx when logic low and disconnecting when logic high. Its CMOS transmission-gate architecture supports bidirectional analog signals from GND to V+ (up to +12V), with leakage currents specified at ≤10nA at +85°C and ESD robustness >2000V per Method 3015.7.
Unlike the MAX4543/MAX4544, the MAX4542EUA+T does not support break-before-make operation; it operates as a simple dual NC switch with no internal interlock. Switching performance is characterized at +5V (tON = 35ns typ, tOFF = 25ns typ) and degrades predictably at lower supplies (e.g., tON = 80ns typ at +3.3V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +12V single supply - enables direct interface with 3.3V and 5V logic without level shifters |
| On-Resistance (RON) | 60Ω max at +5V - ensures minimal signal attenuation and gain error in precision sensor front-ends |
| RON Matching | 2Ω max between channels - critical for matched-path applications like differential signal routing or dual-channel calibration |
| Charge Injection | 5pC max - limits voltage glitch on sampled nodes in data acquisition and sample-and-hold circuits |
| Leakage Current | 10nA max at +85°C - preserves accuracy in high-impedance measurement paths (e.g., pH sensors, photodiode amps) |
| Switching Speed | tON = 35ns, tOFF = 25ns at +5V - supports multiplexing of audio-band and medium-speed control signals |
| ESD Protection | >2000V per Method 3015.7 - provides robust handling margin during board assembly and field service |
Pinout & Package
MAX4542EUA+T is housed in an 8-pin SOT23-8 package (top marking: AAAF), with exposed pad not present (non-EP variant). Pin 1 is COM1, pin 2 is IN1, pin 3 is GND, pin 4 is NC2, pin 5 is COM2, pin 6 is IN2, pin 7 is V+, pin 8 is NC1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (COM1) | Analog common terminal, Channel 1 | Bidirectional signal path - connects to NC1 when IN1 = low; must remain within GND–V+ range |
| 2 (IN1) | Digital control input, Channel 1 | TTL/CMOS-compatible - drives switch state; logic low = ON (COM1↔NC1), logic high = OFF |
| 3 (GND) | Ground reference | Return path for supply and logic; decoupling capacitor required near pin for noise immunity |
| 4 (NC2) | Normally closed terminal, Channel 2 | Fixed analog node - connects to COM2 when IN2 = low; not internally connected to other pins |
| 5 (COM2) | Analog common terminal, Channel 2 | Bidirectional signal path - connects to NC2 when IN2 = low; shares same voltage range constraints as COM1 |
| 6 (IN2) | Digital control input, Channel 2 | Independent logic control - identical electrical behavior to IN1; no cross-talk or timing dependency |
| 7 (V+) | Positive supply input | Single power rail - powers both analog and digital sections; requires local 0.1µF ceramic bypass |
| 8 (NC1) | Normally closed terminal, Channel 1 | Fixed analog node - connects to COM1 when IN1 = low; electrically isolated from all other pins |
Key Features
| Feature | Design Value |
|---|---|
| Low on-resistance flatness | 6Ω max RON flatness - maintains consistent gain across full analog signal range (GND to V+) |
| Ultra-low power consumption | <5µW quiescent - extends battery life in portable test equipment and handheld diagnostics |
| Guaranteed logic compatibility | TTL/CMOS inputs at +5V - eliminates need for external level translators in mixed-voltage systems |
| Precision channel matching | 2Ω max RON mismatch - enables accurate ratiometric measurements in dual-channel sensor interfaces |
| High ESD tolerance | >2000V HBM - reduces field failure risk in unshielded industrial and medical environments |
Applications
| Battery-Powered Instrumentation | Medical Sensor Signal Routing |
|---|---|
Use Scenario: Portable multimeter front-end selecting between voltage, current, and resistance measurement paths. IC Role / Device Role / Timing Role: Dual NC switch isolates unused analog paths while routing active signals to ADC input, minimizing loading and crosstalk. Use Value: 60Ω max RON and 2Ω matching preserve measurement accuracy across ranges; 5pC charge injection prevents offset drift during auto-ranging. |
Use Scenario: Ultrasound probe head multiplexing multiple piezoelectric transducer elements to a shared receive chain. IC Role / Device Role / Timing Role: Low-leakage NC switch enables fast, low-noise signal path selection without DC bias disruption to high-Z transducer outputs. Use Value: 10nA max leakage at +85°C ensures stable baseline in thermally varying probe environments; bidirectional capability supports transmit/receive sharing. |
| Audio Signal Switching | Industrial Process Monitoring |
Use Scenario: Headset jack detection and audio path routing in VoIP phones and conferencing systems. IC Role / Device Role / Timing Role: Dual NC configuration allows default connection of microphone and speaker lines until headset insertion triggers reconfiguration. Use Value: 35ns tON enables glitch-free mute/unmute transitions; 2.7V–12V supply range accommodates both 3.3V SoC and legacy 5V audio codecs. |
Use Scenario: Multiplexing thermocouple, RTD, and 4–20mA loop inputs into a single industrial PLC analog input module. IC Role / Device Role / Timing Role: Precision-matched switches route sensor signals to instrumentation amplifier without introducing gain or offset errors. Use Value: 6Ω RON flatness ensures linear response across full temperature span; -40°C to +85°C rating supports operation in harsh factory environments. |
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 |
|---|---|---|---|
| MAX4541EUA+T | Dual NO configuration (vs. MAX4542EUA+T's dual NC); identical RON, leakage, and speed specs | Requires inverted logic control for default-open behavior - unsuitable where fail-safe closed path is mandatory | Select MAX4541EUA+T only when system design requires default-disconnected signal paths |
| ADG722BRMZ-REEL | 2.5V–5.5V supply range (narrower than MAX4542EUA+T's 2.7V–12V); 4Ω max RON at 3V but 85Ω max at 5V | Higher RON variation across supply range reduces accuracy in wide-input-voltage systems | Prefer ADG722BRMZ-REEL only in strictly 3.3V systems requiring ultra-low RON; avoid for 5V/12V or mixed-rail use |
Compared with MAX4541EUA+T, the MAX4542EUA+T provides fail-safe continuity in power-loss scenarios; compared with ADG722BRMZ-REEL, it offers broader supply flexibility and tighter RON stability across voltage and temperature, making it preferable for industrial and medical designs demanding consistent analog performance.
Availability
MAX4542EUA+T is available at Aetrix Electronics and suitable for battery-powered instrumentation, medical sensor signal routing, and industrial process monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4542EUA+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 and mixed-signal ICs for demanding industrial, medical, and communications applications, emphasizing low power, high accuracy, and rugged reliability.
The MAX4541–MAX4544 family was engineered specifically for low-voltage, single-supply analog switching in portable and space-constrained systems - prioritizing low RON, minimal charge injection, and guaranteed logic compatibility without external level shifters.
FAQ
What is the maximum supply voltage rating for MAX4542EUA+T?
The MAX4542EUA+T has an absolute maximum supply voltage (V+) of +13V, but its recommended operating range is +2.7V to +12V. Operation above +12V risks exceeding safe operating area limits and may degrade long-term reliability. The device is fully specified and tested across the entire +2.7V to +12V range, including leakage, RON, and switching speed parameters.
Does MAX4542EUA+T support break-before-make switching?
No, MAX4542EUA+T does not support break-before-make operation. That feature is explicitly reserved for the MAX4543 and MAX4544 variants per the datasheet. The MAX4542EUA+T implements simple dual NC switches with no internal timing interlock - both channels switch independently based solely on their respective IN1/IN2 logic states.
What is the top-side marking for MAX4542EUA+T in SOT23-8 package?
The MAX4542EUA+T carries the top-side marking "AAAF" on its SOT23-8 package, as confirmed in the Ordering Information table on page 10 of the official datasheet. This marking distinguishes it from other variants in the MAX4541–MAX4544 family (e.g., MAX4541EKA-T = AAAE, MAX4543EKA-T = AAAG).
Can MAX4542EUA+T be used with 3.3V logic inputs when powered from a 5V supply?
Yes, MAX4542EUA+T accepts 3.3V logic inputs when V+ = +5V. Its logic inputs are TTL/CMOS compatible at +5V, with guaranteed VIL ≤ 0.8V and VIH ≥ 2.4V. A 3.3V logic high exceeds the 2.4V minimum VIH, ensuring reliable turn-off of both switches without additional level translation.
Is the SOT23-8 package of MAX4542EUA+T lead-free and RoHS compliant?
Yes, the MAX4542EUA+T SOT23-8 package is lead-free and RoHS compliant, consistent with Maxim Integrated's product compliance policy effective from 2006 onward. The "+T" suffix in the part number denotes tape-and-reel packaging, and the device meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) requirements for floor life.
MAX4542EUA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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+T FAQ
1.How can I place an order for MAX4542EUA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4542EUA+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 MAX4542EUA+T reliable?
The price and inventory of MAX4542EUA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4542EUA+T is usually 5 days.
3.What payment methods are accepted for MAX4542EUA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4542EUA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4542EUA+T?
MAX4542EUA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4542EUA+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 MAX4542EUA+T?
For technical support, including MAX4542EUA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4542EUA+T requirements.
6.How does Aetrix verify that MAX4542EUA+T is sourced from the original manufacturer or authorized distributors?
All MAX4542EUA+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 MAX4542EUA+T meets industry standards.
7.What is the process for return or replacement of MAX4542EUA+T?
All MAX4542EUA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4542EUA+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 MAX4542EUA+T part is unused and in its original packaging.
Return procedure for MAX4542EUA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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