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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:324
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Product details
Overview
MAX4541CSA+ from Maxim Integrated is a dual single-pole/single-throw (SPST), normally open analog switch IC designed for precision signal routing in low-voltage, single-supply systems. It operates from +2.7V to +12V, delivers 60Ω max on-resistance, 2Ω max RON matching between channels, and 5pC max charge injection - enabling high-fidelity switching in battery-powered instrumentation and portable audio interfaces.
For engineers reviewing the MAX4541CSA+ datasheet, MAX4541CSA+ pinout, MAX4541CSA+ application, or MAX4541CSA+ equivalent, key selection criteria include guaranteed break-before-make timing (not applicable to MAX4541), TTL/CMOS logic compatibility, SOT23-8 package footprint, and leakage performance of ≤10nA at +85°C.
Technical Context
The MAX4541CSA+ implements two independent SPST NO switches with CMOS control inputs, supporting bidirectional analog signal flow across the full V+ to GND range. Its architecture uses matched FET pairs to achieve ≤2Ω RON matching and ≤6Ω RON flatness over the signal range, ensuring minimal gain error in multiplexed sensor or DAC output paths.
It features integrated ESD protection (>2000V per Method 3015.7), rail-to-rail logic input tolerance, and <5µW quiescent power consumption. Unlike MAX4543/MAX4544, it does not implement break-before-make switching - confirmed by truth table and functional diagram exclusions in the datasheet.
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 |
| RON (max) | 60Ω at +5V - ensures <0.1% gain error in 600Ω impedance paths |
| RON Matching | 2Ω max between channels - critical for matched gain in differential or dual-channel signal paths |
| Charge Injection | 5pC max - limits voltage glitch to <5mV on 1nF hold capacitors in sample-and-hold circuits |
| tON/tOFF | 150ns/100ns max - supports >5MHz multiplexing in data acquisition systems |
| Leakage (85°C) | 10nA max COM on-leakage - preserves accuracy in high-impedance sensor front-ends |
| ESD Rating | >2000V HBM - meets industrial handling requirements without external protection |
Pinout & Package
MAX4541CSA+ is housed in an 8-pin SO (Small Outline) package with standard 1.27mm pitch. Pin 1 is marked with a beveled corner or dot; pin numbering follows counter-clockwise convention when viewing the top marking side.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply input | Accepts +2.7V to +12V; powers internal switch FETs and logic; must be applied before analog signals |
| IN1 | Digital control input 1 | TTL/CMOS-compatible; active-high logic controls channel 1 (COM1–NO1) |
| COM2 | Analog common terminal 2 | Bidirectional path for channel 2; connects to NO2 when IN2 = high |
| NC2 | Not internally connected | No internal bond wire; must be left floating or tied to GND for mechanical stability |
| GND | Ground reference | Return path for supply and logic; forms reference for analog signal range (0V to V+) |
| IN2 | Digital control input 2 | TTL/CMOS-compatible; active-high logic controls channel 2 (COM2–NO2) |
| COM1 | Analog common terminal 1 | Bidirectional path for channel 1; connects to NO1 when IN1 = high |
| NO1 | Normally open terminal 1 | Open-circuit when IN1 = low; connects to COM1 only when IN1 = high |
Key Features
| Feature | Design Value |
|---|---|
| Low RON flatness | 6Ω max variation across 0V–V+ signal range - maintains linearity in precision ADC/DAC interfaces |
| Ultra-low power | <5µW supply current - extends battery life in portable medical and test equipment |
| Guaranteed TTL/CMOS compatibility | VINH = 2.4V, VINL = 0.8V at +5V supply - eliminates need for logic-level translators |
| Low leakage over temperature | 10nA max at +85°C - preserves signal integrity in automotive cabin modules and industrial sensors |
| Pin compatibility | Direct replacement for MAX323/MAX324/MAX325 in SO-8 layout - reduces redesign effort |
Applications
| Audio Signal Routing | Portable Instrumentation |
|---|---|
Use Scenario: Switching between multiple microphone inputs or headphone outputs in handheld audio recorders. IC Role / Device Role / Timing Role: Dual SPST NO switch routing analog audio paths with minimal crosstalk (<−90dB) and distortion. Use Value: 5pC charge injection prevents audible pop/click during channel changes; 60Ω RON avoids bass roll-off in 32Ω headphone loads. | Use Scenario: Multiplexing sensor outputs (thermocouple, RTD, strain gauge) into a shared ADC in field-deployable data loggers. IC Role / Device Role / Timing Role: Precision analog switch providing matched channel resistance and low leakage for ratiometric measurements. Use Value: 2Ω RON matching eliminates inter-channel gain mismatch; 10nA leakage prevents offset drift in high-Z sensor bridges. |
| Medical Ultrasound Front-End | Test Equipment Signal Path |
Use Scenario: Selecting transducer elements in portable ultrasound probes operating from single Li-ion cells. IC Role / Device Role / Timing Role: Low-capacitance (8pF off-capacitance), fast-switching (150ns tON) analog switch in time-gain compensation paths. Use Value: 8pF COFF minimizes loading on high-frequency echo signals; 2.7V–12V operation matches battery and boost-regulated rails. | Use Scenario: Configuring signal paths in automated test equipment (ATE) for DUT stimulus/response routing. IC Role / Device Role / Timing Role: Dual-channel SPST switch enabling flexible topology reconfiguration under microcontroller control. Use Value: SO-8 package allows dense PCB layouts; pin compatibility with MAX323 simplifies legacy board upgrades. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4541EKA-T | SOT23-8 package, −40°C to +85°C temp range, top mark AAAE - same electrical specs, smaller footprint | Preferred for space-constrained industrial controllers requiring extended temperature operation | Select when board area is limited and extended temperature range is required; verify solder profile for SOT23-8 |
| MAX323ESA+ | SO-8, 0°C to +70°C, 85Ω max RON, 10pC charge injection - older generation, higher RON and leakage | Suitable for cost-sensitive, non-precision applications where 60Ω RON is not mandatory | Choose only if legacy compatibility or lower unit cost outweighs performance trade-offs in RON and charge injection |
Compared with MAX4541CSA+, MAX4541EKA-T offers identical switching performance in a smaller SOT23-8 package with extended temperature rating, while MAX323ESA+ provides pin-compatible fallback with relaxed RON and charge injection specs - making MAX4541CSA+ the optimal balance of precision, size, and commercial temperature support.
Availability
MAX4541CSA+ is available at Aetrix Electronics and suitable for portable instrumentation, medical ultrasound front-ends, and 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 targets low-voltage, single-supply analog signal routing where low RON, low charge injection, and small footprint are essential - especially in battery-powered and space-constrained systems.
FAQ
What is the maximum supply voltage rating for MAX4541CSA+?
The MAX4541CSA+ has an absolute maximum supply voltage (V+) of +13V, but its specified operational range is +2.7V to +12V. Exceeding +13V risks permanent damage per Absolute Maximum Ratings. For reliable long-term operation, maintain V+ within the +2.7V to +12V range, with derating above +70°C per the SO-8 thermal specification (471mW at +70°C, derated by 5.88mW/°C).
Does MAX4541CSA+ support break-before-make switching?
No, MAX4541CSA+ does not implement break-before-make switching. This feature is explicitly reserved for MAX4543 and MAX4544 variants per the datasheet's Features section and truth tables. MAX4541CSA+ contains two independent SPST NO switches with no internal timing coordination between channels - making it unsuitable for SPDT emulation requiring guaranteed isolation during transition.
What is the typical on-resistance flatness of MAX4541CSA+ at +5V supply?
The typical on-resistance flatness of MAX4541CSA+ is 0.8Ω at +5V supply, with a maximum of 6Ω across the full analog signal range (0V to V+). This specification is measured with ICOM = 1.0mA and VNO or VNC = 3.5V, and directly impacts gain consistency in variable-gain amplifier or programmable filter applications.
Can MAX4541CSA+ be used with a +3.3V supply?
Yes, MAX4541CSA+ is fully specified for +3.3V operation (within the +2.7V to +12V range). At +3.3V, typical RON is 275Ω (max 500Ω), tON is 80ns (max 400ns), and leakage remains ≤10nA at +85°C. Logic inputs remain TTL/CMOS compatible, and analog signals can swing rail-to-rail (0V to +3.3V) without degradation in switching performance.
Is MAX4541CSA+ pin-compatible with MAX323 series devices?
Yes, MAX4541CSA+ is pin-compatible with MAX323, MAX324, and MAX325 in the 8-pin SO package, as confirmed in the datasheet Features section. This allows drop-in replacement in existing layouts, though designers must verify that the improved specifications (lower RON, lower charge injection, tighter matching) do not require adjustments to downstream filtering or settling time budgets.
MAX4541CSA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- 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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