Analog Devices Inc./Maxim Integrated MAX4541ESA-T
- Part No.:
- MAX4541ESA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4541ESA-T.pdf
- Description:
- IC SWITCH SPST-NOX2 60OHM 8SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:1,138
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Product details
Overview
MAX4541ESA-T 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 audio systems.
For engineers reviewing the MAX4541ESA-T datasheet, MAX4541ESA-T pinout, MAX4541ESA-T application, or MAX4541ESA-T equivalent, key selection criteria include guaranteed break-before-make timing (not applicable), TTL/CMOS logic compatibility, SOT23-8 package footprint, -40°C to +85°C industrial temperature range, and <5µW quiescent power consumption.
Technical Context
The MAX4541ESA-T implements two independent SPST NO switches in a single monolithic CMOS process, supporting bidirectional analog signal flow across the full supply rail (GND to V+). Its architecture features integrated ESD protection (>2000V per Method 3015.7) and rail-to-rail logic inputs that scale with V+, ensuring reliable switching at +3.3V, +5V, or +12V supplies.
Unlike the MAX4543/MAX4544, it lacks break-before-make functionality and does not integrate NC paths. Channel isolation is maintained via low leakage (10nA max at +85°C) and high off-isolation (-76dB at 1MHz), while fast switching (tON = 35ns typ, tOFF = 25ns typ at +5V) supports sampling rates up to ~10MHz in sample-and-hold circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2.7V to +12V single supply - enables direct integration into 3.3V and 5V systems without level-shifting. |
| RON (max) | 60Ω 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 - reduces voltage glitch and settling time in high-resolution ADC/DAC multiplexing. |
| tON/tOFF | 35ns/25ns typ at +5V - supports >10MHz switching frequency in test equipment and communications front-ends. |
| Leakage Current | 10nA max at +85°C - preserves accuracy in high-impedance sensor nodes and battery-monitoring circuits. |
| ESD Rating | >2000V per Method 3015.7 - provides robust handling during PCB assembly and field operation. |
Pinout & Package
MAX4541ESA-T is housed in an 8-pin SO (Small Outline) package with standard 1.27mm pitch, compatible with automated surface-mount assembly and IPC-7351B land patterns.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NO1) | Analog Switch 1 - Normally Open terminal | Connects to COM1 when IN1 = high; open-circuit otherwise - used as signal output or input depending on system topology. |
| 2 (COM1) | Analog Switch 1 - Common terminal | Primary signal path node for channel 1; bidirectional - must be routed with controlled impedance in RF-sensitive applications. |
| 3 (IN2) | Digital Control Input 2 | CMOS/TTL-compatible logic input controlling channel 2; threshold scales with V+ - no external pull-up required. |
| 4 (GND) | Ground reference | System ground return for analog and digital domains; requires low-inductance connection to minimize switching noise coupling. |
| 5 (NC2) | Not Connected | No internal connection - must remain unconnected; floating or tied to GND per layout best practices. |
| 6 (COM2) | Analog Switch 2 - Common terminal | Primary signal path node for channel 2; electrically isolated from COM1 - enables true dual-channel independence. |
| 7 (IN1) | Digital Control Input 1 | CMOS/TTL-compatible logic input controlling channel 1; identical electrical behavior to IN2 - supports synchronous or independent control. |
| 8 (V+) | Positive Supply Voltage | +2.7V to +12V analog/digital supply; requires local 0.1µF ceramic decoupling within 5mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| Low RON flatness | 6Ω max over full analog signal range - maintains consistent gain and linearity when switching varying DC or AC signals. |
| TTL/CMOS logic compatibility | Guaranteed at +5V supply - eliminates need for external level translators in microcontroller-driven systems. |
| Pin compatibility | With MAX323/MAX324/MAX325 - allows drop-in replacement in legacy designs without PCB revision. |
| Low power consumption | <5µW typical - extends battery life in portable medical devices and handheld test gear. |
| High off-isolation | -76dB at 1MHz - prevents crosstalk between active and inactive channels in multi-signal routing applications. |
Applications
| Audio Signal Routing | Portable Instrumentation |
|---|---|
Use Scenario: Selecting between multiple microphone inputs or headphone outputs in a handheld audio recorder. IC Role / Device Role / Timing Role: Dual SPST analog switch providing low-distortion, low-noise signal path selection with minimal THD. Use Value: 5pC max charge injection and 60Ω max RON preserve audio fidelity and dynamic range without requiring post-switch amplification. | Use Scenario: Multiplexing sensor outputs (thermocouple, RTD, strain gauge) into a shared ADC in a field-deployable data logger. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential sampling of high-impedance sources with matched channel characteristics. Use Value: 2Ω max RON matching and 10nA max leakage at +85°C ensure measurement consistency across temperature and channel pairs. |
| Medical Ultrasound Beamforming | Industrial PLC I/O Conditioning |
Use Scenario: Routing echo-return signals from transducer arrays to receive amplifiers in portable ultrasound units. IC Role / Device Role / Timing Role: High-speed, low-leakage analog switch supporting precise time-of-flight measurements in pulsed-echo systems. Use Value: 35ns/25ns switching times and >2000V ESD rating meet reliability and timing demands of clinical-grade imaging hardware. | Use Scenario: Isolating analog input channels from field wiring in programmable logic controller modules operating in noisy factory environments. IC Role / Device Role / Timing Role: Industrial-grade analog switch providing galvanic separation and transient suppression for 4–20mA loop interfaces. Use Value: -40°C to +85°C operating range and 60Ω max RON ensure stable performance under wide ambient temperature swings and long-term calibration drift. |
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 (vs. SO); same electrical specs and temperature range (-40°C to +85°C) | Preferred for space-constrained PCBs where 3.0mm × 3.0mm footprint is mandatory | Select MAX4541EKA-T when board area is limited and reflow profile supports fine-pitch SOT23 assembly. |
| ADG1419BRMZ | Single SPDT switch (vs. dual SPST); 1.5Ω typical RON, but higher 12V supply requirement and no 3.3V guarantee | Used where SPDT topology and ultra-low RON outweigh need for dual independent channels | Choose ADG1419BRMZ only if SPDT function is required and system operates exclusively at ≥4.5V. |
Compared with MAX4541EKA-T, the MAX4541ESA-T offers identical switching performance in a larger SO package suitable for manual prototyping and thermal management; versus ADG1419BRMZ, it provides dual-channel flexibility and guaranteed 3.3V operation at the cost of slightly higher RON.
Availability
MAX4541ESA-T is available at Aetrix Electronics and suitable for portable instrumentation, medical ultrasound systems, and industrial PLC I/O conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4541ESA-T 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 fabless semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, medical, and communications markets.
The MAX4541–MAX4544 family was engineered for low-voltage, single-supply analog signal routing in space- and power-constrained systems - emphasizing precision, speed, and robustness without external support components.
FAQ
What is the maximum supply voltage rating for MAX4541ESA-T?
The MAX4541ESA-T has an absolute maximum supply voltage of +13V referenced to GND, with recommended operating range from +2.7V to +12V. Exceeding +13V may cause permanent damage. The device is fully specified at +5V and +3.3V supplies, delivering 60Ω max RON and 35ns/25ns switching times within these conditions. Always observe proper power-supply sequencing - apply V+ before analog or logic signals.
Does MAX4541ESA-T support break-before-make switching?
No, the MAX4541ESA-T does not support break-before-make switching. That feature is exclusive to the MAX4543 and MAX4544 variants in the same family. The MAX4541ESA-T implements two independent normally open (NO) SPST switches with no internal timing coordination between channels. For applications requiring guaranteed isolation during state transitions, consider the MAX4543ESA or MAX4544ESA instead.
What is the thermal performance of MAX4541ESA-T in the SO package?
The MAX4541ESA-T in the 8-pin SO package has a continuous power dissipation rating of 471mW at +70°C, derating by 5.88mW/°C above that temperature. At maximum rated junction temperature (+125°C), usable power drops to approximately 170mW. Thermal resistance θJA is ~213°C/W. For sustained operation near thermal limits, use copper pour and thermal vias under the exposed pad (if present) - though the SO variant lacks an exposed pad unlike TDFN versions.
Can MAX4541ESA-T operate with a 3.3V logic interface while powered from 5V?
Yes, the MAX4541ESA-T accepts logic inputs from 0V to V+, so a 3.3V logic signal is fully compatible when V+ = 5V. Its TTL/CMOS-compatible inputs have guaranteed thresholds (VINL ≤ 0.8V, VINH ≥ 2.4V) at +5V supply, making 3.3V logic levels safely detectable. Driving inputs rail-to-rail minimizes supply current - critical for low-power designs. No level-shifter is needed.
Is MAX4541ESA-T pin-compatible with older Maxim analog switches?
Yes, the MAX4541ESA-T is pin-compatible with the MAX323, MAX324, and MAX325 in the same 8-pin SO package. This allows direct replacement in legacy designs without PCB modification. Electrical specifications differ - notably lower RON (60Ω vs. 100Ω), faster switching (35ns vs. 120ns), and improved charge injection (5pC vs. 25pC) - so performance upgrades are achieved without layout changes.
MAX4541ESA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4541ESA-T FAQ
1.How can I place an order for MAX4541ESA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4541ESA-T 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 MAX4541ESA-T reliable?
The price and inventory of MAX4541ESA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4541ESA-T is usually 5 days.
3.What payment methods are accepted for MAX4541ESA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4541ESA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4541ESA-T?
MAX4541ESA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4541ESA-T 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 MAX4541ESA-T?
For technical support, including MAX4541ESA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4541ESA-T requirements.
6.How does Aetrix verify that MAX4541ESA-T is sourced from the original manufacturer or authorized distributors?
All MAX4541ESA-T 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 MAX4541ESA-T meets industry standards.
7.What is the process for return or replacement of MAX4541ESA-T?
All MAX4541ESA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4541ESA-T, 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 MAX4541ESA-T part is unused and in its original packaging.
Return procedure for MAX4541ESA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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