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Analog Devices Inc./Maxim Integrated MAX4543EPA
- Part No.:
- MAX4543EPA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX4543EPA.pdf
- Description:
- IC SW SPST-NO/NCX2 60OHM 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,275
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Product details
Overview
MAX4543EPA from Maxim Integrated is a precision dual SPST analog switch with one normally open (NO) and one normally closed (NC) channel, enabling SPDT functionality in a single +2.7V to +12V supply system. It delivers 60Ω max on-resistance, 2Ω max RON matching between channels, 5pC max charge injection, and guaranteed break-before-make switching-ideal for sample-and-hold circuits and audio/video signal routing in battery-powered test equipment.
For engineers reviewing the MAX4543EPA datasheet, MAX4543EPA pinout, MAX4543EPA application, or MAX4543EPA equivalent, key selection criteria include its -40°C to +85°C industrial temperature rating, 8-pin plastic DIP package, TTL/CMOS logic compatibility, and verified break-before-make timing (2ns min, 10ns max) critical for preventing signal shorting during channel transitions.
Technical Context
The MAX4543EPA implements complementary MOSFET switch pairs per channel with integrated level-shifting logic to ensure rail-to-rail analog signal handling (0V to V+) and robust ESD protection (>2000V per Method 3015.7). Its break-before-make architecture is hardwired-not software-configurable-and active only during logic transitions between IN1/IN2 inputs.
Switch operation is fully bidirectional: COM1/COM2 serve as common terminals, NO1/NC1 and NO2/NC2 as selectable paths, with all analog pins supporting equal current sourcing/sinking (±10mA continuous). Leakage remains ≤10nA at +85°C, and dynamic performance is specified at +5V (tON = 35ns typ, tOFF = 25ns typ) and +3.3V (tON = 80ns typ, tOFF = 50ns typ).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2.7V to +12V single supply-enables direct interface with 3.3V, 5V, and 12V systems without level shifters. |
| On-Resistance (RON) | 60Ω max at +5V-ensures minimal signal attenuation and distortion in precision analog paths. |
| RON Matching | 2Ω max between channels-critical for matched gain/phase in differential or dual-path signal conditioning. |
| Charge Injection | 5pC max-limits voltage glitch on sampled capacitors in data acquisition front-ends. |
| Break-Before-Make Time | 2ns to 10ns-prevents momentary short-circuit between NC and NO paths during switching. |
| ESD Protection | >2000V per Method 3015.7-reduces need for external transient suppression in handheld test gear. |
| Leakage Current | 10nA max at +85°C-maintains accuracy in high-impedance sensor interfaces and battery-monitoring circuits. |
Pinout & Package
MAX4543EPA uses an 8-pin plastic DIP (dual in-line package) with 0.3-inch body width and through-hole mounting. Pin 1 is identified by a notch or dot; pin numbering follows standard DIP convention (counterclockwise from top-left corner).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (V+) | Positive Supply Input | Accepts +2.7V to +12V; must be applied before analog/logic signals to prevent latch-up. |
| 2 (IN1) | Digital Control Input 1 | TTL/CMOS-compatible; controls COM1–NO1/NC1 path; low = NO1 closed (for MAX4543), high = NC1 closed. |
| 3 (COM2) | Analog Switch 2 Common | Bidirectional terminal; connects to NC2 or NO2 based on IN2 state; supports full V+ to GND signal swing. |
| 4 (NC2) | Analog Switch 2 Normally Closed | Internally connected to COM2 when IN2 = low; open when IN2 = high-no external pull required. |
| 5 (GND) | Ground Reference | System ground return; must be low-impedance to minimize noise coupling into analog paths. |
| 6 (IN2) | Digital Control Input 2 | Independent control of COM2–NO2/NC2; enables asynchronous dual-channel switching. |
| 7 (COM1) | Analog Switch 1 Common | Primary signal path terminal; paired with NO1 (pin 8) and NC1 (pin 4); shares same electrical specs as COM2. |
| 8 (NO1) | Analog Switch 1 Normally Open | Connects to COM1 only when IN1 = high; isolated otherwise-supports fail-safe open-circuit default. |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed Break-Before-Make | Hardwired timing ensures NC disconnect occurs before NO connect-eliminates cross-conduction risk in SPDT mode. |
| Low Charge Injection (5pC max) | Minimizes settling error in capacitor-coupled stages like sample-and-hold amplifiers and ADC drivers. |
| 6Ω max RON Flatness | On-resistance varies ≤6Ω across full 0V–V+ analog range-preserves linearity in audio and instrumentation signals. |
| TTL/CMOS Logic Compatibility | Operates with standard 5V logic thresholds; also accepts rail-to-rail inputs up to V+, simplifying controller interfacing. |
| 2000V+ ESD Protection | Withstands repeated human-body-model discharges-reduces field failure rate in unshielded test equipment. |
Applications
| Sample-and-Hold Circuits | Audio Signal Routing |
|---|---|
Use Scenario: Capturing precise voltage levels from sensors or transducers for ADC conversion in portable data loggers. IC Role / Device Role / Timing Role: Dual-channel analog switch isolating hold capacitor from input source during acquisition phase; break-before-make prevents charge sharing. Use Value: 5pC max charge injection limits hold-step error to <1 LSB in 12-bit systems; 60Ω RON ensures fast settling with low-value hold capacitors. | Use Scenario: Selecting between microphone and line-level inputs in battery-powered voice recorders or conference systems. IC Role / Device Role / Timing Role: SPDT function implemented via single MAX4543EPA, routing analog audio paths under microcontroller GPIO control. Use Value: 2Ω RON matching preserves stereo channel balance; 10nA leakage avoids DC offset drift in AC-coupled amplifier stages. |
| Test Equipment Multiplexing | Military Radio Front-Ends |
Use Scenario: Scanning multiple sensor outputs (thermocouples, strain gauges) into a shared precision ADC in benchtop multimeters. IC Role / Device Role / Timing Role: Dual SPST configuration (COM1/NO1 + COM2/NO2) used as independent signal gates, controlled by separate logic lines. Use Value: 60Ω RON flatness maintains consistent gain across measurement ranges; low power (5µW) extends battery life in handheld units. | Use Scenario: Switching antenna paths or IF filters in compact tactical radios operating across wide temperature (-40°C to +85°C). IC Role / Device Role / Timing Role: SPDT reconfiguration of RF front-end components; DIP package enables manual repair and long-term obsolescence resilience. Use Value: Guaranteed -40°C to +85°C operation ensures reliability in extreme environments; 2000V ESD withstand protects against battlefield static discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPST/SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4543ETA | TDFN-EP package (8-pin, exposed pad); 1951mW power dissipation vs. 727mW for DIP; same electrical specs. | Surface-mount assembly; requires thermal pad soldering; unsuitable for through-hole prototyping or manual repair. | Select MAX4543ETA for space-constrained PCBs needing enhanced thermal performance; retain MAX4543EPA for serviceability and legacy DIP layouts. |
| ADG1419BRUZ | Single SPDT, 4.7Ω RON max, ±15V dual supply only; no break-before-make guarantee; different pinout. | Requires dual-supply design; lacks guaranteed transition safety; incompatible pin mapping precludes drop-in replacement. | Choose ADG1419BRUZ only if lower RON and dual-supply operation are mandatory; MAX4543EPA remains preferred for single-supply, safety-critical SPDT routing. |
Compared with MAX4543ETA and ADG1419BRUZ, the MAX4543EPA uniquely combines through-hole manufacturability, guaranteed break-before-make timing, and single-supply flexibility-making it optimal for ruggedized, repairable, and thermally undemanding industrial test platforms.
Availability
MAX4543EPA is available at Aetrix Electronics and suitable for battery-operated systems, sample-and-hold circuits, and military radio front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4543EPA 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, emphasizing low-power, high-reliability performance.
The MAX4541–MAX4544 family targets low-voltage, single-supply analog switching in portable and harsh-environment systems-prioritizing low leakage, fast switching, and robust ESD tolerance over ultra-low RON.
FAQ
What is the maximum supply voltage rating for MAX4543EPA?
The MAX4543EPA has an absolute maximum supply voltage (V+) of +13V, but its recommended operating range is +2.7V to +12V. Exceeding +13V risks permanent damage per Absolute Maximum Ratings. At +12V, RON drops to ~30Ω (typ), improving signal fidelity in high-voltage analog paths while maintaining 5pC charge injection and 2000V ESD protection.
Does MAX4543EPA support rail-to-rail analog signal switching?
Yes, the MAX4543EPA supports rail-to-rail analog signals from GND to V+ across all channels (COM1/NO1/NC1 and COM2/NO2/NC2). This is enabled by its CMOS switch architecture and internal level-shifting logic, ensuring minimal on-resistance variation (<6Ω flatness) and <10nA leakage at +85°C-critical for accurate signal transmission in data acquisition systems using the MAX4543EPA.
Is break-before-make timing guaranteed for MAX4543EPA?
Yes, break-before-make timing is guaranteed for the MAX4543EPA, with a specified delay (tD) of 2ns minimum to 10ns maximum at +25°C (RL = 300Ω, CL = 35pF). This hardwired feature prevents simultaneous conduction between NC and NO paths during logic transitions-essential for safe SPDT operation in the MAX4543EPA and confirmed in Figures 3a and 3b of the datasheet.
What is the thermal performance of MAX4543EPA in plastic DIP package?
The MAX4543EPA in plastic DIP has a continuous power dissipation of 727mW at +70°C, derating linearly at 9.09mW/°C above that temperature. At +85°C ambient, usable power drops to ~591mW. This allows reliable operation in enclosed test equipment enclosures without forced airflow, provided PCB copper area around pins 1 (V+) and 5 (GND) is maximized for heat spreading in the MAX4543EPA layout.
Can MAX4543EPA replace MAX323 in existing designs?
The MAX4543EPA is pin-compatible with the MAX323 per datasheet Feature list, sharing identical pin functions and logic behavior in DIP packages. However, the MAX4543EPA offers superior specs: 60Ω vs. 100Ω RON, 5pC vs. 15pC charge injection, and guaranteed break-before-make-making it a functional upgrade. No PCB changes are needed, but verify timing margins given faster tON/tOFF in the MAX4543EPA.
MAX4543EPA 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
MAX4543EPA FAQ
1.How can I place an order for MAX4543EPA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4543EPA 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 MAX4543EPA reliable?
The price and inventory of MAX4543EPA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4543EPA is usually 5 days.
3.What payment methods are accepted for MAX4543EPA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4543EPA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4543EPA?
MAX4543EPA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4543EPA 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 MAX4543EPA?
For technical support, including MAX4543EPA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4543EPA requirements.
6.How does Aetrix verify that MAX4543EPA is sourced from the original manufacturer or authorized distributors?
All MAX4543EPA 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 MAX4543EPA meets industry standards.
7.What is the process for return or replacement of MAX4543EPA?
All MAX4543EPA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4543EPA, 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 MAX4543EPA part is unused and in its original packaging.
Return procedure for MAX4543EPA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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