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Analog Devices Inc./Maxim Integrated MAX4541EKA+T
- Part No.:
- MAX4541EKA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SOT-23-8
- Datasheet:
-
MAX4541EKA+T.pdf
- Description:
- IC SWITCH SPST-NOX2 60OHM SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:10,729
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Product details
Overview
MAX4541EKA+T 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 battery-powered and space-constrained systems. It operates from a single +2.7V to +12V supply, delivers 60Ω max on-resistance at +5V, 2Ω max RON matching between channels, and guarantees ≤5pC charge injection - enabling high-fidelity signal switching in audio, sensor, and data acquisition paths.
For engineers reviewing the MAX4541EKA+T datasheet, MAX4541EKA+T pinout, MAX4541EKA+T application, or MAX4541EKA+T equivalent, key selection criteria include its SOT23-8 package footprint, -40°C to +85°C industrial temperature rating, guaranteed break-before-make timing (not applicable), TTL/CMOS logic compatibility, and low leakage (<10nA at +85°C) for precision sample-and-hold and multiplexed ADC front-ends.
Technical Context
The MAX4541EKA+T implements two independent SPST NO switches in a single monolithic CMOS process, each controlled by dedicated digital inputs (IN1, IN2). Its architecture supports bidirectional analog signal flow across COM/NO terminals with rail-to-rail voltage handling (0V to V+), and features internal ESD protection (>2000V per Method 3015.7) without external clamping diodes under proper supply sequencing.
It exhibits flat on-resistance (6Ω max RON flatness) over the full analog input range and maintains low dynamic distortion - verified by -90dB crosstalk and -76dB off-isolation at 1MHz - making it suitable for high-fidelity audio switching and low-noise instrumentation where channel-to-channel signal integrity is 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 systems without level shifters. |
| On-Resistance (RON) | 60Ω max at +5V - ensures minimal signal attenuation and gain error in precision analog paths. |
| RON Matching | 2Ω max between channels - critical for matched gain/attenuation in differential or dual-path circuits. |
| Charge Injection | 5pC max - limits voltage glitch on sampled capacitors in precision data acquisition and hold circuits. |
| Leakage Current | 10nA max at +85°C - preserves accuracy in high-impedance sensor interfaces and long-duration sample-and-hold. |
| Switching Speed | tON = 35ns, tOFF = 25ns at +5V - supports >10MHz multiplexing rates in high-speed data conversion systems. |
| ESD Protection | >2000V per Method 3015.7 - provides robust handling during board assembly and field operation without external protection. |
Pinout & Package
SOT23-8 package (top mark: AAAE), 1.50mm × 2.30mm body, 0.65mm pitch, exposed pad (EP) not present in this variant - compatible with standard SOT23-8 reflow profiles and automated placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (COM1) | Analog common terminal, Channel 1 | Bidirectional signal path node; connects to NO1 when IN1 = high (logic active). |
| 2 (IN1) | Digital control input, Channel 1 | TTL/CMOS-compatible; drives internal switch gate; low = open, high = closed (NO configuration). |
| 3 (GND) | Ground reference | Return path for supply current and logic thresholds; must be low-impedance for noise immunity. |
| 4 (NC2) | Not internally connected | No electrical connection; left floating or tied to GND for mechanical stability only. |
| 5 (COM2) | Analog common terminal, Channel 2 | Independent of COM1; enables dual-channel signal routing without crosstalk coupling. |
| 6 (IN2) | Digital control input, Channel 2 | Independent logic control; allows asynchronous switching of Channel 2 relative to Channel 1. |
| 7 (V+) | Positive supply voltage | Single power rail for analog and digital sections; must be applied before analog signals per sequencing guidelines. |
| 8 (NO1) | Analog normally open terminal, Channel 1 | Signal path endpoint; connects to COM1 only when IN1 is asserted; no DC continuity otherwise. |
Key Features
| Feature | Design Value |
|---|---|
| Low RON flatness (6Ω max) | Maintains consistent gain/attenuation across full 0V–V+ analog input range - essential for linear signal conditioning. |
| TTL/CMOS logic compatibility | Accepts 0.8V/2.4V thresholds at +5V supply; supports rail-to-rail logic drive at other voltages - simplifies controller interface. |
| Pin compatibility with MAX323/MAX324/MAX325 | Enables drop-in replacement in legacy designs using those older analog switches - reduces redesign effort. |
| Guaranteed low leakage (10nA @ +85°C) | Minimizes offset drift and settling errors in high-Z sensor amplifiers and integrator circuits. |
| Fast switching (35ns tON) | Supports time-multiplexed sampling at >10MHz rates - suitable for multi-channel simultaneous-sampling ADCs. |
Applications
| Audio Signal Routing | Portable Medical Sensors |
|---|---|
|
Use Scenario: Switching between multiple microphone inputs or headphone outputs in compact audio codecs. IC Role / Device Role: Dual SPST analog switch providing low-distortion, low-crosstalk signal path selection. Use Value: 60Ω RON and -90dB crosstalk preserve SNR and channel separation in battery-powered hearing aids and voice recorders. |
Use Scenario: Multiplexing ECG, SpO₂, or temperature sensor outputs into a shared ADC channel. IC Role / Device Role: Precision analog switch isolating high-impedance biopotential sources during sampling. Use Value: 10nA max leakage at +85°C prevents baseline drift and ensures accurate DC-coupled physiological measurements. |
| Industrial Data Acquisition | Test Equipment Signal Path |
|
Use Scenario: Scanning thermocouple or RTD inputs in programmable logic controller (PLC) analog input modules. IC Role / Device Role: Dual-channel SPST switch enabling sequential measurement of up to 16 sensors via one ADC. Use Value: 2Ω RON matching minimizes channel-to-channel gain error; 5pC charge injection reduces hold capacitor settling time. |
Use Scenario: Configuring signal paths in handheld multimeters or automated test equipment (ATE) front-ends. IC Role / Device Role: Low-leakage, low-RON switch routing calibration references, DUT signals, and guard traces. Use Value: >2000V ESD protection withstands repeated probe contact; 6Ω RON flatness ensures measurement repeatability across voltage ranges. |
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 |
|---|---|---|---|
| MAX4542EKA+T | Dual SPST with normally closed (NC) configuration instead of NO; identical RON, leakage, and timing specs. | Used where default-closed signal path is required (e.g., fail-safe sensor disconnect). | Select MAX4542EKA+T only when NC behavior is needed; pinout and package match MAX4541EKA+T exactly. |
| MAX4543EKA+T | Single NO + single NC switch per package; includes guaranteed break-before-make timing (tD = 2ns min). | Required for SPDT-like functionality or preventing momentary short-circuits during switching transitions. | Choose MAX4543EKA+T when break-before-make is mandatory; same SOT23-8 footprint but different truth table and pin mapping. |
Compared with MAX4542EKA+T and MAX4543EKA+T, the MAX4541EKA+T provides the simplest dual-NO control logic and highest channel independence - ideal for non-overlapping, independently gated signal paths in portable instrumentation and audio systems.
Availability
MAX4541EKA+T is available at Aetrix Electronics and suitable for battery-operated systems, precision data acquisition modules, and portable medical devices requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4541EKA+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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The MAX4541–MAX4544 family was engineered for low-voltage, single-supply analog signal routing in space- and power-constrained applications - emphasizing precision, low leakage, and robust ESD tolerance without external protection components.
FAQ
What is the operating temperature range for MAX4541EKA+T?
The MAX4541EKA+T is rated for -40°C to +85°C ambient operation, qualifying it for industrial and extended-temperature embedded applications. This range is confirmed in the Ordering Information table and validated across all electrical specifications including leakage current, on-resistance, and switching speed - unlike commercial-grade variants (e.g., MAX4541CUA) limited to 0°C to +70°C.
Does MAX4541EKA+T support break-before-make switching?
No, the MAX4541EKA+T does not guarantee break-before-make timing. That feature is explicitly specified only for the MAX4543 and MAX4544 variants in the datasheet. The MAX4541EKA+T implements two independent SPST NO switches with no inter-channel timing coordination - meaning both channels can be turned on simultaneously without enforced dead time.
What package type is used for MAX4541EKA+T?
The MAX4541EKA+T uses the SOT23-8 surface-mount package with top marking "AAAE", measuring 1.50mm × 2.30mm and featuring 0.65mm lead pitch. It does not include an exposed thermal pad (EP), distinguishing it from TDFN-EP variants like MAX4541ETA. Pinout matches standard SOT23-8 layout per Figure 11 in the datasheet.
Can MAX4541EKA+T operate from a 3.3V supply?
Yes, the MAX4541EKA+T fully supports +3.3V single-supply operation. Electrical Characteristics tables confirm RON = 125Ω max, tON = 400ns max, and leakage <10nA at +85°C under +3.3V conditions. Logic inputs remain TTL/CMOS-compatible, and analog signal range extends from 0V to V+, preserving full rail-to-rail switching capability.
Is MAX4541EKA+T pin-compatible with older Maxim analog switches?
Yes, the MAX4541EKA+T is pin-compatible with MAX323, MAX324, and MAX325 in the SOT23-8 package. This is explicitly stated in the Features section and verified by identical pin functions (COM1/IN1/GND/NC2/COM2/IN2/V+/NO1) and mechanical dimensions - enabling direct replacement in legacy designs without PCB modification.
MAX4541EKA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-8
MAX4541EKA+T FAQ
1.How can I place an order for MAX4541EKA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4541EKA+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 MAX4541EKA+T reliable?
The price and inventory of MAX4541EKA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4541EKA+T is usually 5 days.
3.What payment methods are accepted for MAX4541EKA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4541EKA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4541EKA+T?
MAX4541EKA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4541EKA+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 MAX4541EKA+T?
For technical support, including MAX4541EKA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4541EKA+T requirements.
6.How does Aetrix verify that MAX4541EKA+T is sourced from the original manufacturer or authorized distributors?
All MAX4541EKA+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 MAX4541EKA+T meets industry standards.
7.What is the process for return or replacement of MAX4541EKA+T?
All MAX4541EKA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4541EKA+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 MAX4541EKA+T part is unused and in its original packaging.
Return procedure for MAX4541EKA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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