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Analog Devices Inc./Maxim Integrated MAX4541CSA
- Part No.:
- MAX4541CSA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4541CSA.pdf
- Description:
- IC SWITCH SPST-NOX2 60OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,477
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Product details
Overview
The MAX4541CSA from Maxim Integrated is a precision dual single-pole/single-throw (SPST) analog switch with normally open (NO) configuration, operating from a single +2.7V to +12V supply. 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 MAX4541CSA datasheet, MAX4541CSA pinout, MAX4541CSA application, or MAX4541CSA equivalent, key selection criteria include guaranteed break-before-make timing (not applicable), SO-8 package compatibility, low leakage (<10nA at +85°C), and TTL/CMOS logic interface support across 3.3V/5V systems.
Technical Context
The MAX4541CSA implements two independent SPST switches with bidirectional analog signal paths, each controlled by dedicated CMOS/TTL-compatible digital inputs (IN1, IN2). Its channel architecture supports rail-to-rail analog signals from GND to V+, with on-resistance flatness of ≤6Ω over the full voltage range.
It features internal ESD protection (>2000V per Method 3015.7), <5µW quiescent power consumption, and fast switching (tON = 35ns typ, tOFF = 25ns typ at +5V), making it suitable for sample-and-hold circuits and audio multiplexing where signal integrity and low power are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +12V single supply - enables direct integration into 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 interfaces. |
| RON Matching | 2Ω max between channels - critical for matched-path applications like differential signal switching or dual-channel DAC output routing. |
| Charge Injection | 5pC max - limits voltage glitch on sampled nodes, essential for high-resolution ADC front-ends. |
| Leakage Current | 10nA max at +85°C - preserves accuracy in high-impedance circuits such as pH sensors or piezoelectric transducer interfaces. |
| Switching Speed | tON = 35ns, tOFF = 25ns (typ at +5V) - supports >10MHz multiplexing rates in test equipment and communications signal paths. |
| ESD Protection | >2000V per Method 3015.7 - provides robust handling during board assembly and field operation without external protection. |
Pinout & Package
MAX4541CSA is housed in an 8-pin SO (Small Outline) package with standard 1.27mm pitch and exposed pad not present. Pin functions are validated per Maxim's official datasheet Figure 11 (SO-8 configuration).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | COM1 | Analog common terminal for Channel 1 - connects to signal source or load; bidirectional path. |
| 2 | IN1 | Digital control input for Channel 1 - active-high TTL/CMOS compatible; controls COM1–NO1 path. |
| 3 | GND | Ground reference for analog and digital sections - must be low-impedance connection to minimize noise coupling. |
| 4 | NO1 | Normally open terminal for Channel 1 - forms closed path with COM1 when IN1 = high. |
| 5 | NO2 | Normally open terminal for Channel 2 - forms closed path with COM2 when IN2 = high. |
| 6 | COM2 | Analog common terminal for Channel 2 - independent bidirectional path, matched to COM1 performance. |
| 7 | IN2 | Digital control input for Channel 2 - fully independent of IN1; enables asynchronous dual-channel control. |
| 8 | V+ | Positive supply input - powers both analog switch core and logic interface; accepts 2.7V–12V. |
Key Features
| Feature | Design Value |
|---|---|
| Low RON flatness | 6Ω max variation across 0V to V+ - maintains consistent gain and linearity in variable-gain amplifier switching. |
| TTL/CMOS logic compatibility | Validated at +3.3V, +5V, and +12V supplies - eliminates need for external level shifters in mixed-voltage systems. |
| Guaranteed low leakage | <10nA at +85°C - prevents DC offset drift in high-impedance sensor front-ends and integrator circuits. |
| Fast, matched switching | 35ns tON/25ns tOFF with ≤2Ω RON match - enables synchronized dual-channel sampling without skew-induced errors. |
| Single-supply operation | No negative rail required - simplifies power design in portable equipment and reduces BOM count. |
Applications
| Portable Medical Instrumentation | Industrial Sensor Signal Routing |
|---|---|
|
Use Scenario: Multiplexing ECG electrode inputs into a single high-resolution ADC in handheld patient monitors. IC Role / Device Role / Timing Role: Dual SPST switch routing analog biopotential signals while preserving DC accuracy and low noise. Use Value: 10nA max leakage at +85°C prevents baseline drift; 5pC charge injection avoids sampling artifacts in 24-bit ADC conversions. |
Use Scenario: Selecting between multiple RTD or thermocouple inputs in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Precision analog multiplexer enabling sequential measurement of up to four temperature sensors using one ADC channel. Use Value: 2Ω RON matching ensures identical gain error across all channels; 60Ω max RON minimizes self-heating in 4-wire RTD configurations. |
| Audio Signal Switching | Battery-Powered Test Equipment |
|
Use Scenario: Routing line-level stereo signals in compact audio analyzers or headphone amplifier evaluation boards. IC Role / Device Role / Timing Role: Low-distortion analog switch providing mute, source select, and channel swap functions. Use Value: -90dB crosstalk and -76dB off-isolation prevent audible channel bleed; 35ns switching enables glitch-free muting. |
Use Scenario: Configuring signal paths in handheld multimeters or portable oscilloscope probes with auto-ranging capability. IC Role / Device Role / Timing Role: Low-power analog switch enabling automatic range selection and calibration path insertion. Use Value: <5µW quiescent power extends battery life; +2.7V minimum supply allows operation directly from single Li-ion cell. |
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 |
|---|---|---|---|
| MAX4541EKA-T | SOT23-8 package, -40°C to +85°C temp range, AA AE top mark - same electrical specs but smaller footprint and extended temperature rating. | Preferred for space-constrained industrial designs requiring wider thermal margin and reflow-solderable leadless package. | Select MAX4541EKA-T when PCB area is limited and operation beyond +70°C is required; SO-8 remains optimal for through-hole prototyping and legacy layouts. |
| ADG1419BRUZ | Single SPDT, 0.6Ω typical RON, ±15V dual-supply capable - lower on-resistance but different topology and supply architecture. | Used in high-precision lab equipment requiring ultra-low RON and bipolar signal handling, not drop-in replacement for dual SPST function. | Choose ADG1419BRUZ only when SPDT topology and sub-1Ω RON are mandatory; MAX4541CSA remains superior for dual independent SPST routing with single-supply simplicity. |
Compared with MAX4541EKA-T, the MAX4541CSA offers easier hand-soldering and legacy board compatibility via SO-8; versus ADG1419BRUZ, it provides true dual-channel independence and single-supply operation at the cost of higher RON, making it optimal for portable, cost-sensitive, and thermally moderate applications.
Availability
MAX4541CSA is available at Aetrix Electronics and suitable for portable medical instrumentation, industrial sensor signal routing, audio signal switching, and battery-powered test equipment requiring stable component supply across production lifecycles.
Supply support for MAX4541CSA 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, mixed-signal, and power management ICs for demanding industrial, medical, and communications applications.
The MAX4541–MAX4544 family was engineered specifically for low-voltage, single-supply analog switching in space- and power-constrained systems-emphasizing low leakage, matched RON, and rail-to-rail signal handling without dual supplies.
FAQ
What is the maximum analog signal voltage range supported by the MAX4541CSA?
The MAX4541CSA supports analog signals from GND to V+, with V+ rated from +2.7V to +12V. At +5V supply, the full 0V to +5V range is preserved with minimal RON variation (≤6Ω flatness), enabling accurate switching of sensor outputs, DAC voltages, and audio signals without clipping or distortion.
Does the MAX4541CSA support break-before-make switching?
No, the MAX4541CSA does not implement break-before-make functionality. That feature is explicitly reserved for the MAX4543 and MAX4544 variants per the datasheet truth tables and functional diagrams. The MAX4541CSA operates as two independent SPST NO switches with no inter-channel timing coordination.
Can the MAX4541CSA be used with a 3.3V logic supply while powered from a 5V analog rail?
Yes, the MAX4541CSA accepts logic inputs from 0V to V+ - meaning IN1 and IN2 can be driven directly by 3.3V CMOS outputs even when V+ = 5V. No level shifter is needed, and the device remains TTL/CMOS compatible across this mixed-supply condition per the Logic Levels section of the datasheet.
What is the thermal performance limit for continuous operation of the MAX4541CSA in SO-8 package?
The MAX4541CSA in SO-8 package has a maximum continuous power dissipation of 471mW at +70°C, derating by 5.88mW/°C above that temperature. This corresponds to a junction-to-ambient thermal resistance (θJA) of approximately 170°C/W, allowing reliable operation up to +70°C ambient without forced airflow in typical PCB layouts.
How does the MAX4541CSA compare to the MAX4542CSA in terms of switch configuration?
The MAX4541CSA contains two normally open (NO) SPST switches, while the MAX4542CSA contains two normally closed (NC) SPST switches. Their pinouts and electrical specs are identical except for default state - making them functional complements rather than drop-in replacements. Selection depends strictly on whether the system requires default-open or default-closed signal paths during power-down or logic-inactive states.
MAX4541CSA 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:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4541CSA FAQ
1.How can I place an order for MAX4541CSA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4541CSA 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 MAX4541CSA reliable?
The price and inventory of MAX4541CSA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4541CSA is usually 5 days.
3.What payment methods are accepted for MAX4541CSA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4541CSA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4541CSA?
MAX4541CSA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4541CSA 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 MAX4541CSA?
For technical support, including MAX4541CSA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4541CSA requirements.
6.How does Aetrix verify that MAX4541CSA is sourced from the original manufacturer or authorized distributors?
All MAX4541CSA 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 MAX4541CSA meets industry standards.
7.What is the process for return or replacement of MAX4541CSA?
All MAX4541CSA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4541CSA, 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 MAX4541CSA part is unused and in its original packaging.
Return procedure for MAX4541CSA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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