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Analog Devices Inc./Maxim Integrated MAX4541CPA
- Part No.:
- MAX4541CPA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX4541CPA.pdf
- Description:
- IC SWITCH SPST-NO X 2 60OHM 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,249
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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, single-supply operation from +2.7V to +12V. 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 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, 100pA max leakage at +25°C, and plastic DIP-8 package suitability for prototyping and legacy through-hole designs.
Technical Context
The MAX4541CPA implements two independent SPST switches with complementary control inputs (IN1/IN2), each connecting COMx to NOx when logic high is applied. Its CMOS transmission-gate architecture supports bidirectional analog signal flow across the full supply range (GND to V+), with rail-to-rail logic input tolerance.
It operates without external biasing, requires no power-up sequencing under normal conditions, and integrates internal ESD protection (>2000V per Method 3015.7). The device does not support break-before-make functionality-this feature is exclusive to MAX4543/MAX4544 variants.
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 systems without level shifting |
| 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 switching or dual-channel data acquisition |
| Charge Injection | 5pC max - limits voltage glitch on sampled nodes in sample-and-hold and ADC multiplexing circuits |
| Leakage Current | 100pA max at +25°C - preserves accuracy in high-impedance sensor interfaces and battery-monitoring circuits |
| Switching Speed | tON = 35ns typ, tOFF = 25ns typ at +5V - supports audio-band and medium-speed data routing up to ~10MHz |
| ESD Protection | >2000V per Method 3015.7 - provides robust handling during board assembly and field service |
Pinout & Package
MAX4541CPA is housed in an 8-pin plastic DIP package (0.300" wide), compatible with standard through-hole prototyping and legacy industrial PCBs. Pin spacing follows JEDEC MS-001 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NO1) | Analog Switch 1 Normally Open Terminal | Output path for Channel 1; connects to COM1 when IN1 = high |
| 2 (COM1) | Analog Switch 1 Common Terminal | Bidirectional signal node for Channel 1; routes between NO1 and NC1 (not used in MAX4541) |
| 3 (IN2) | Digital Control Input 2 | Active-high logic input controlling Channel 2; TTL/CMOS compatible at +5V |
| 4 (GND) | Ground Reference | Return path for supply and logic; must be low-impedance for leakage and noise control |
| 5 (NC2) | Not Connected | No internal connection; left floating or tied to GND for mechanical stability |
| 6 (COM2) | Analog Switch 2 Common Terminal | Bidirectional signal node for Channel 2; routes between NO2 and NC2 (not used in MAX4541) |
| 7 (IN1) | Digital Control Input 1 | Active-high logic input controlling Channel 1; referenced to GND, rail-to-rail tolerant |
| 8 (V+) | Positive Supply Voltage | Single power rail; must be applied before analog signals to prevent latch-up |
Key Features
| Feature | Design Value |
|---|---|
| Low Power Consumption | <5µW quiescent - extends battery life in portable test equipment and handheld diagnostics |
| Low RON Flatness | 6Ω max - maintains consistent gain and linearity across full analog signal swing (0V to V+) |
| TTL/CMOS Logic Compatibility | VINH = 2.4V min, VINL = 0.8V max at +5V - eliminates need for external logic translators |
| Pin Compatibility | Drop-in replacement for MAX323/MAX324/MAX325 - simplifies upgrade of legacy analog switch designs |
| Temperature-Stable Leakage | 10nA max at +85°C - ensures reliable performance in automotive cabin and industrial control environments |
Applications
| Audio Signal Routing | Portable Medical Instrumentation |
|---|---|
Use Scenario: Selecting between multiple microphone inputs or headphone outputs in a clinical voice recorder. IC Role / Device Role / Timing Role: Dual SPST analog switch routing bidirectional audio paths with minimal distortion and crosstalk. Use Value: 5pC max charge injection prevents audible pop/click artifacts during channel switching; 60Ω RON ensures flat frequency response up to 20kHz. | Use Scenario: Multiplexing ECG electrode signals into a single ADC channel in a handheld patient monitor. IC Role / Device Role / Timing Role: Precision analog switch isolating high-impedance biopotential sources while preserving signal integrity. Use Value: 100pA max leakage avoids baseline drift in DC-coupled amplifiers; 2Ω RON matching minimizes common-mode rejection ratio (CMRR) degradation. |
| Test & Measurement Front-Ends | Battery-Powered Data Loggers |
Use Scenario: Configuring programmable gain and signal path selection in a benchtop multimeter's analog back-end. IC Role / Device Role / Timing Role: Low-leakage, low-RON switch enabling accurate DC voltage/current measurement ranges. Use Value: 6Ω RON flatness ensures consistent gain calibration across input voltage range; >2000V ESD withstand protects against operator discharge events. | Use Scenario: Isolating sensor inputs (thermistor, humidity, gas) during sleep mode in an environmental monitoring node. IC Role / Device Role / Timing Role: Ultra-low-power analog gate enabling selective sensor activation without MCU intervention. Use Value: <5µW supply current reduces standby power by >95% vs. discrete FET solutions; +2.7V minimum supply allows direct Li-ion battery operation. |
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; SO-8 package instead of DIP-8 - smaller footprint, surface-mount only | Preferred for automated SMT production; unsuitable for hand-soldered prototypes or breadboards | Select MAX4541CSA for volume manufacturing where PCB space and assembly efficiency are prioritized over manual serviceability. |
| MAX323ESA | Higher RON (100Ω max), slower switching (tON/tOFF = 120ns), no guaranteed charge injection spec | Legacy design reuse; acceptable where speed and precision are secondary to cost and availability | Choose MAX323ESA only when upgrading existing MAX323-based boards and 60Ω RON or 5pC charge injection are not required. |
Compared with MAX4541CPA, MAX4541CSA offers identical performance in a space-saving SO-8 package but sacrifices through-hole serviceability, while MAX323ESA trades precision and speed for broader legacy support and lower unit cost-making MAX4541CPA optimal for new designs demanding low-leakage, low-distortion analog switching in accessible form factors.
Availability
MAX4541CPA is available at Aetrix Electronics and suitable for battery-operated systems, portable medical instrumentation, and test equipment requiring stable component supply with long-term obsolescence management.
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 and mixed-signal ICs for industrial, communications, and consumer applications.
The MAX4541–MAX4544 family was engineered for precision, low-voltage analog signal routing in space-constrained and power-sensitive systems-emphasizing low leakage, rail-to-rail operation, and robust ESD immunity.
FAQ
What is the maximum operating temperature range for the MAX4541CPA?
The MAX4541CPA is rated for operation from 0°C to +70°C. This commercial-grade temperature range is specified in the Ordering Information table and applies to all MAX4541CPA units. It is distinct from the extended-range MAX4541EPA variant (-40°C to +85°C), and thermal derating must follow the plastic DIP package's 9.09mW/°C specification above +70°C.
Does the MAX4541CPA support break-before-make switching?
No, the MAX4541CPA does not support break-before-make (BBM) switching. BBM is explicitly guaranteed only for the MAX4543 and MAX4544 variants per the Features section and Truth Tables. The MAX4541CPA implements two independent SPST NO switches with no internal timing coordination between channels, so simultaneous conduction during transition is possible.
Can the MAX4541CPA operate from a +3.3V supply?
Yes, the MAX4541CPA supports +3.3V single-supply operation. Electrical Characteristics tables confirm performance at V+ = +3.0V to +3.6V, including RON = 50Ω max, tON = 80ns typ, and leakage within spec. Logic inputs remain compatible when driven 0V to +3.3V, satisfying rail-to-rail control requirements without external level shifters.
What is the meaning of "N.C." on Pin 5 of the MAX4541CPA?
"N.C." on Pin 5 of the MAX4541CPA stands for "Not Connected" - it has no internal bond wire or circuit connection. Per the Pin Description table and functional diagrams, Pin 5 (NC2) is electrically isolated and may be left floating or tied to GND for mechanical stability. It must never be used as a signal or supply path.
Is the MAX4541CPA pin-compatible with the MAX323 series?
Yes, the MAX4541CPA is pin-compatible with the MAX323, MAX324, and MAX325 in the same 8-pin package configurations (DIP, SO, µMAX). The Pin Configurations section confirms identical pin assignments for V+, IN1, COM2, NC2, GND, IN2, COM1, and NO1. However, electrical performance (e.g., RON, charge injection) differs significantly-designers must verify layout compatibility and update decoupling if migrating from MAX323.
MAX4541CPA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
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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