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Analog Devices Inc./Maxim Integrated MAX4541CPA+
- Part No.:
- MAX4541CPA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX4541CPA+.pdf
- Description:
- IC SW DUAL ANLG SPST N/O 8-DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,084
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Product details
Overview
MAX4541CPA+ from Maxim Integrated is a precision dual single-pole/single-throw (SPST) analog switch with normally open (NO) configuration, designed for low-voltage signal routing in +2.7V to +12V single-supply systems. It delivers 60Ω max on-resistance, 2Ω max RON matching between channels, 5pC max charge injection, and operates with <5µW supply current - enabling high-fidelity signal switching in battery-powered instrumentation and portable medical devices.
For engineers reviewing the MAX4541CPA+ datasheet, MAX4541CPA+ pinout, MAX4541CPA+ application, or MAX4541CPA+ equivalent, key selection criteria include guaranteed break-before-make timing (not applicable), TTL/CMOS logic compatibility, SOT23-8/SO/DIP package options, and performance validation at +25°C and full industrial temperature range (0°C to +70°C).
Technical Context
The MAX4541CPA+ implements two independent SPST NO switches controlled by separate CMOS/TTL-compatible digital inputs (IN1, IN2), each driving its own COM–NO path. Its channel architecture supports bidirectional analog signal flow with rail-to-rail voltage handling (GND to V+) and maintains stable RON flatness (≤6Ω) across the full analog range.
It features internal ESD protection (>2000V per Method 3015.7), low leakage (10nA max at +85°C), and fast switching (tON = 35ns typ, tOFF = 25ns typ at +5V), optimized for sample-and-hold circuits and multiplexed sensor interfaces where minimal signal distortion and charge kickback are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +12V single supply - enables direct interface with 3.3V, 5V, and 12V logic and analog subsystems without level shifting. |
| On-Resistance (RON) | 60Ω max at +5V - ensures minimal insertion loss and gain error in precision signal paths (e.g., ADC front-ends). |
| RON Matching | 2Ω max between channels - supports matched gain/attenuation in differential or dual-channel applications like stereo audio switching. |
| Charge Injection | 5pC max - limits voltage glitch on sampled nodes, critical for high-resolution data acquisition and hold capacitor stability. |
| Leakage Current | 10nA max at +85°C - preserves accuracy in high-impedance sensor interfaces and long-duration sample-and-hold operations. |
| Switching Speed | tON = 35ns, tOFF = 25ns (typ at +5V) - supports >10MHz multiplexing rates in automated test equipment and real-time signal routing. |
| ESD Protection | >2000V per Method 3015.7 - provides robust handling during board assembly and field operation without external protection diodes. |
Pinout & Package
MAX4541CPA+ is supplied in an 8-pin Plastic DIP package (0.300" wide), with lead finish Pb-free and RoHS-compliant. Pin spacing is 0.100", and body dimensions conform to JEDEC MS-001.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | COM1 | Analog common terminal for Channel 1 - bidirectional node connected to load or source in SPST NO configuration. |
| 2 | IN1 | Digital control input for Channel 1 - active-high logic; drives switch ON when ≥2.4V (at +5V supply). |
| 3 | GND | Ground reference for analog and digital circuitry - must be low-impedance return path to minimize noise coupling. |
| 4 | IN2 | Digital control input for Channel 2 - independent of IN1; enables asynchronous dual-channel control. |
| 5 | COM2 | Analog common terminal for Channel 2 - electrically isolated from COM1; supports dual independent signal paths. |
| 6 | V+ | Positive supply input - powers internal switch core and logic; accepts +2.7V to +12V with no external regulation required. |
| 7 | NO1 | Normally open terminal for Channel 1 - connects to COM1 only when IN1 = HIGH; defines SPST NO topology. |
| 8 | NO2 | Normally open terminal for Channel 2 - connects to COM2 only when IN2 = HIGH; enables parallel dual-switch operation. |
Key Features
| Feature | Design Value |
|---|---|
| Low on-resistance flatness | 6Ω max variation over full analog signal range (0V to V+) - maintains consistent gain/attenuation in variable-voltage signal chains. |
| TTL/CMOS logic compatibility | Validated at +5V supply with VINH = 2.4V, VINL = 0.8V - eliminates need for external level translators in mixed-voltage systems. |
| Guaranteed low charge injection | 5pC max - reduces settling time and residual offset in precision sampling circuits using small hold capacitors (e.g., ≤100pF). |
| Ultra-low power consumption | <5µW quiescent supply current - extends battery life in portable diagnostics, handheld meters, and IoT edge sensors. |
| High ESD immunity | >2000V HBM - allows direct handling and PCB integration without additional ESD protection components. |
Applications
| Battery-Powered Instrumentation | Audio Signal Routing |
|---|---|
Use Scenario: Portable multimeter front-end multiplexing analog signals from multiple sensor inputs into a shared ADC channel. IC Role / Device Role / Timing Role: Dual SPST NO switch routing voltage/current measurement paths under microcontroller GPIO control. Use Value: 60Ω max RON and 2Ω matching ensure consistent scaling across channels; 5pC charge injection prevents hold-capacitor voltage corruption during switching. | Use Scenario: Stereo headphone output switching between DAC outputs and auxiliary line-in sources in compact audio players. IC Role / Device Role / Timing Role: Independent channel control of left/right analog audio paths with simultaneous mute/unmute capability. Use Value: Rail-to-rail analog signal handling (GND to V+) preserves full dynamic range; low THD (<0.01% typical) avoids audible distortion. |
| Medical Sensor Interfaces | Industrial Data Acquisition |
Use Scenario: Isolating and routing ECG electrode signals to amplifier stages while minimizing DC offset drift and noise coupling. IC Role / Device Role / Timing Role: Low-leakage (10nA max at +85°C) SPST switch enabling high-impedance biopotential signal conditioning. Use Value: Sub-10nA off-leakage preserves signal integrity in µV-level biosignal paths; 2000V ESD rating protects against clinical environment transients. | Use Scenario: Multiplexing thermocouple, RTD, and strain gauge inputs into a single precision sigma-delta ADC in PLC analog input modules. IC Role / Device Role / Timing Role: Precision analog switch providing matched channel characteristics for calibrated multi-sensor measurement cycles. Use Value: 2Ω RON matching minimizes inter-channel gain error; 6Ω RON flatness ensures linear response across full sensor voltage range. |
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 |
|---|---|---|---|
| MAX4541CSA+ | Same electrical specs, but in 8-pin SO package (150mil width) - higher thermal resistance and larger PCB footprint than DIP. | Suitable for surface-mount production lines; less suitable for through-hole prototyping or legacy DIP sockets. | Select MAX4541CSA+ when automated SMT assembly is required and board space permits wider SO footprint. |
| ADG1419BRUZ | Higher RON (12Ω typ), lower leakage (1pA typ), ±15V dual-supply operation - not single-supply compatible. | Requires dual-rail supply and level-shifting logic; incompatible with +3.3V/+5V-only systems using MAX4541CPA+. | Choose ADG1419BRUZ only if bipolar supply and ultra-low leakage outweigh single-supply convenience and cost. |
Compared with MAX4541CSA+, the MAX4541CPA+ offers identical performance in a through-hole DIP package ideal for lab evaluation and legacy designs; versus ADG1419BRUZ, it trades ultra-low leakage for single-supply simplicity and broader voltage compatibility - making it optimal for cost-sensitive, battery-operated, and industrial embedded systems.
Availability
MAX4541CPA+ is available at Aetrix Electronics and suitable for battery-powered instrumentation, audio signal routing, medical sensor interfaces, and industrial data acquisition requiring stable component supply across extended product lifecycles.
Supply support for MAX4541CPA+ 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, communications, and consumer applications.
The MAX4541–MAX4544 family was engineered for low-voltage, single-supply analog signal routing in space-constrained, power-sensitive systems - emphasizing precision switching, low distortion, and robust operation across commercial temperature ranges.
FAQ
What is the maximum supply voltage rating for MAX4541CPA+?
The MAX4541CPA+ has an absolute maximum supply voltage (V+) of +13V, with recommended operating range from +2.7V to +12V. Exceeding +13V may cause permanent damage. The device is fully specified and tested across this range, delivering guaranteed RON, leakage, and switching performance at +5V and +12V supplies - making MAX4541CPA+ suitable for both low-power portable gear and higher-voltage industrial signal conditioning.
Does MAX4541CPA+ support break-before-make switching?
No, MAX4541CPA+ does not implement break-before-make functionality. It is a dual SPST normally open switch with independent IN1/IN2 controls; each channel operates as a simple ON/OFF path without internal timing coordination between channels. Break-before-make behavior is only guaranteed for MAX4543 and MAX4544 variants - so MAX4541CPA+ should not be used in applications requiring guaranteed isolation during state transitions, such as analog multiplexer crosspoint switching.
What is the on-resistance temperature coefficient of MAX4541CPA+?
The MAX4541CPA+ exhibits a typical on-resistance increase of ~0.15Ω/°C near room temperature, with RON rising from ~33Ω typ at +25°C to ~60Ω max at +70°C (per datasheet Figure 2). This positive temperature coefficient is inherent to the MOSFET-based switch architecture and is fully characterized across 0°C to +70°C - ensuring predictable gain drift in precision applications using MAX4541CPA+ in commercial-temperature environments.
Can MAX4541CPA+ operate with a +3.3V supply?
Yes, MAX4541CPA+ is fully operational with a +3.3V supply. Electrical characteristics are specified down to +2.7V, including RON (max 125Ω at +3.3V), tON/tOFF (max 400ns/175ns), and logic thresholds (VINH = 2.4V, VINL = 0.8V). At +3.3V, MAX4541CPA+ maintains TTL/CMOS compatibility and delivers sub-µW quiescent power - confirming its suitability for modern low-voltage embedded systems where MAX4541CPA+ interfaces directly with 3.3V microcontrollers and ADCs.
Is MAX4541CPA+ pin-compatible with older Maxim analog switches?
Yes, MAX4541CPA+ is pin-compatible with MAX323, MAX324, and MAX325 in the same 8-pin DIP package. Pin assignments for V+, IN1, COM1, GND, IN2, COM2, NO1, and NO2 match identically across these families - enabling drop-in replacement in legacy designs. However, MAX4541CPA+ improves upon those predecessors with lower RON, reduced charge injection, and enhanced ESD protection, so system-level validation is recommended when upgrading from MAX32x parts to MAX4541CPA+.
MAX4541CPA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- -
- Number of Circuits:
- -
- On-State Resistance (Max):
- -
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- -
- Current - Leakage (IS(off)) (Max):
- -
- Crosstalk:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX4541CPA+ FAQ
1.How can I place an order for MAX4541CPA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4541CPA+ 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 MAX4541CPA+ reliable?
The price and inventory of MAX4541CPA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4541CPA+ is usually 5 days.
3.What payment methods are accepted for MAX4541CPA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4541CPA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4541CPA+?
MAX4541CPA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4541CPA+ 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 MAX4541CPA+?
For technical support, including MAX4541CPA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4541CPA+ requirements.
6.How does Aetrix verify that MAX4541CPA+ is sourced from the original manufacturer or authorized distributors?
All MAX4541CPA+ 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 MAX4541CPA+ meets industry standards.
7.What is the process for return or replacement of MAX4541CPA+?
All MAX4541CPA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4541CPA+, 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 MAX4541CPA+ part is unused and in its original packaging.
Return procedure for MAX4541CPA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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