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Analog Devices Inc./Maxim Integrated MAX4543EUA
- Part No.:
- MAX4543EUA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4543EUA.pdf
- Description:
- IC SW SPST-NO/NCX2 60OHM 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:4,630
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Product details
Overview
MAX4543EUA from Maxim Integrated is a precision dual SPST analog switch with one normally open (NO) and one normally closed (NC) channel, designed for single-supply operation from +2.7V to +12V. It delivers 60Ω max on-resistance, 2Ω max RON matching between channels, 5pC max charge injection, and guaranteed break-before-make switching-enabling reliable signal routing in battery-powered instrumentation and audio multiplexing.
For engineers reviewing the MAX4543EUA datasheet, MAX4543EUA pinout, MAX4543EUA application, or MAX4543EUA equivalent, key selection criteria include its -40°C to +85°C temperature rating, µMAX-8 package footprint, dual-channel SPST/SPDT configurability, low leakage (<10nA at +85°C), and TTL/CMOS logic compatibility across supply voltages.
Technical Context
The MAX4543EUA implements two independent CMOS transmission gates with complementary control logic-one NO and one NC-supporting true SPDT functionality without external components. Its break-before-make timing (2ns min, 10ns max at +25°C) prevents signal shorting during state transitions, critical for analog multiplexing in data acquisition systems.
Designed for single-supply operation, it accepts rail-to-rail analog signals (0V to V+) and logic inputs (0V to V+), eliminating level-shifting requirements. Internal ESD protection exceeds 2000V per Method 3015.7, and leakage remains below 10nA over full temperature range, ensuring stability in precision sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +12V single supply - enables direct integration with 3.3V, 5V, and 12V systems without auxiliary rails |
| 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/phase response in differential or dual-path circuits |
| Charge Injection | 5pC max - reduces voltage glitch and settling time in sample-and-hold and ADC front-end applications |
| Turn-On/Off Time | tON = 35ns, tOFF = 25ns at +5V - suitable for high-speed multiplexing up to ~10MHz bandwidth |
| Leakage Current | 10nA max at +85°C - maintains accuracy in high-impedance sensor and medical signal chains |
| ESD Protection | >2000V per Method 3015.7 - enhances robustness in handheld and field-deployable equipment |
Pinout & Package
MAX4543EUA 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 variants. The exposed pad variant is not used in this ordering option.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - COM1 | Analog common terminal, Channel 1 | Bidirectional signal path shared between NO1 and NC1; must remain within 0V to V+ range |
| 2 - IN1 | Digital control input, Channel 1 | TTL/CMOS-compatible; logic high connects COM1 to NO1, logic low connects COM1 to NC1 |
| 3 - GND | Ground reference | System ground return for analog and digital domains; decoupling capacitor required near pin |
| 4 - NC2 | Not internally connected | No internal bond wire; must be left floating or tied to GND for mechanical stability only |
| 5 - COM2 | Analog common terminal, Channel 2 | Independent of COM1; supports simultaneous dual-channel switching |
| 6 - IN2 | Digital control input, Channel 2 | Independent control of Channel 2; supports asynchronous or synchronized operation |
| 7 - V+ | Positive supply input | Single power rail for analog and logic sections; requires 0.1µF ceramic bypass capacitor |
| 8 - NO1 | Normally open terminal, Channel 1 | Connected to COM1 only when IN1 = high; isolated otherwise - defines SPST-NO behavior |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed break-before-make | Ensures no overlap between NO and NC conduction in MAX4543EUA's SPDT mode, preventing momentary shorts in signal routing |
| Low RON flatness (6Ω max) | Maintains consistent on-resistance across full analog signal range (0V to V+), minimizing THD in audio paths |
| Rail-to-rail analog and logic operation | Accepts analog signals and logic inputs spanning full supply range - eliminates external level shifters |
| Ultra-low power consumption (<5µW) | Enables multi-year battery life in portable test equipment and remote sensors without duty cycling |
| Pin compatibility with MAX323/MAX324/MAX325 | Allows drop-in replacement in legacy designs using those older analog switches, reducing redesign effort |
Applications
| Audio Signal Routing | Portable Instrumentation |
|---|---|
Use Scenario: Selecting between microphone and line-in inputs in a handheld audio recorder with single 3.3V supply. IC Role / Device Role / Timing Role: Dual-channel analog switch providing SPDT-like routing via independent NO/NC control, with break-before-make preventing pop/click artifacts. Use Value: 5pC charge injection and 60Ω RON preserve SNR >90dB; low 10nA leakage avoids DC offset drift in high-Z preamp stages. | Use Scenario: Multiplexing multiple sensor outputs (thermocouple, RTD, strain gauge) into a single ADC in a battery-powered data logger. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential sampling with matched channel characteristics and minimal crosstalk (-76dB off-isolation). Use Value: 2Ω RON matching ensures consistent gain scaling across channels; <5µW quiescent power extends operational runtime. |
| Medical Patient Monitoring | Industrial PLC I/O Modules |
Use Scenario: Isolating ECG electrode inputs during lead-off detection while maintaining bias paths in a wearable monitor. IC Role / Device Role / Timing Role: Dual SPST switch implementing programmable NC/NO configuration to route bias currents and disconnect electrodes safely. Use Value: 2000V ESD protection withstands clinical handling; 10nA max leakage at +85°C ensures stable baseline in long-duration monitoring. | Use Scenario: Configuring analog input ranges (±10V, 0–20mA, 4–20mA) in a modular industrial controller using software-selectable signal paths. IC Role / Device Role / Timing Role: High-voltage-tolerant analog switch supporting up to +12V supply, enabling direct interface with industrial transducers and actuators. Use Value: +2.7V to +12V operation eliminates need for separate signal conditioning rails; 60Ω RON flatness ensures accurate scaling across full input range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4543ETA | TDFN-8 package with exposed pad; identical electrical specs and pinout | Better thermal performance (1951mW dissipation vs. 330mW for µMAX); requires different PCB land pattern | Select MAX4543ETA for high-power-density or thermally constrained layouts where board space allows TDFN footprint |
| ADG1419BRUZ | Single SPDT switch (not dual); 4.7Ω RON, 1.5pC charge injection, ±15V dual supply only | Requires dual supply; superior RON and charge injection but lacks second independent channel | Choose ADG1419BRUZ only if single-channel performance outweighs need for dual-channel integration and single-supply operation |
Compared with MAX4543ETA, the MAX4543EUA trades thermal capability for smaller footprint and simpler assembly; versus ADG1419BRUZ, it provides dual-channel flexibility and single-supply convenience at the cost of slightly higher RON and charge injection.
Availability
MAX4543EUA is available at Aetrix Electronics and suitable for battery-operated systems, precision instrumentation, medical monitoring devices, and industrial I/O modules requiring stable component supply across extended temperature ranges.
Supply support for MAX4543EUA 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, medical, and communications markets.
The MAX4541–MAX4544 family was engineered for low-voltage, single-supply analog signal routing in space-constrained, power-sensitive applications-emphasizing precision, reliability, and ease of integration without external support circuitry.
FAQ
What is the operating temperature range for MAX4543EUA?
The MAX4543EUA is rated for operation from -40°C to +85°C. This extended industrial temperature range is confirmed in the Ordering Information table and Absolute Maximum Ratings section of the datasheet. All electrical specifications-including on-resistance, leakage current, and switching times-are guaranteed across this full range, making MAX4543EUA suitable for deployment in harsh environments such as factory automation and outdoor instrumentation.
Does MAX4543EUA support rail-to-rail analog signal switching?
Yes, MAX4543EUA supports rail-to-rail analog signal switching from 0V to V+. The datasheet specifies an analog signal range of "0 to V+" under Electrical Characteristics, and Applications Information confirms bidirectional operation with minimal RON variation across the full voltage span. This capability eliminates the need for external level-shifting circuitry when interfacing with op-amps, ADCs, or DACs operating at the same supply rail.
Is MAX4543EUA pin-compatible with older Maxim analog switches?
Yes, MAX4543EUA is explicitly stated as pin-compatible with MAX323, MAX324, and MAX325 in the Features section. All share the same 8-pin µMAX/SO/TDFN pinout and functional assignment (e.g., Pin 1 = COM1, Pin 2 = IN1, Pin 3 = GND). This allows direct replacement in legacy designs without PCB modification, provided the improved performance parameters (e.g., lower RON, reduced charge injection) are acceptable.
What is the guaranteed break-before-make time for MAX4543EUA?
The guaranteed break-before-make time for MAX4543EUA is 2ns minimum to 10ns maximum at +25°C, as specified in the Electrical Characteristics table under "Break-Before-Make Time Delay". This parameter applies only to the MAX4543 and MAX4544 variants and ensures no overlap between NO and NC conduction states during logic transitions-critical for avoiding signal shorting in SPDT configurations.
Can MAX4543EUA operate from a +3.3V supply?
Yes, MAX4543EUA is fully specified for +3.3V operation. The Electrical Characteristics section includes dedicated rows for "Single +3.3V Supply", listing RON = 50Ω max, tON = 80ns typ, tOFF = 50ns typ, and leakage ≤10nA at +85°C. Logic inputs remain compatible with 0V/3.3V levels, and analog signals can swing from 0V to 3.3V-making MAX4543EUA ideal for modern low-voltage embedded systems.
MAX4543EUA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO/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
MAX4543EUA FAQ
1.How can I place an order for MAX4543EUA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4543EUA 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 MAX4543EUA reliable?
The price and inventory of MAX4543EUA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4543EUA is usually 5 days.
3.What payment methods are accepted for MAX4543EUA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4543EUA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4543EUA?
MAX4543EUA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4543EUA 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 MAX4543EUA?
For technical support, including MAX4543EUA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4543EUA requirements.
6.How does Aetrix verify that MAX4543EUA is sourced from the original manufacturer or authorized distributors?
All MAX4543EUA 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 MAX4543EUA meets industry standards.
7.What is the process for return or replacement of MAX4543EUA?
All MAX4543EUA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4543EUA, 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 MAX4543EUA part is unused and in its original packaging.
Return procedure for MAX4543EUA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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