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Analog Devices Inc./Maxim Integrated MAX4561EUT-T
- Part No.:
- MAX4561EUT-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SOT-23-6
- Datasheet:
-
MAX4561EUT-T.pdf
- Description:
- IC SWITCH SPDT X 1 70OHM SOT6
- Quantity:
- Payment:
- Shipping:
Inventory:2,604
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Product details
Overview
The MAX4561EUT-T from Maxim Integrated is a single-pole/double-throw (SPDT) CMOS analog switch with ±15kV ESD protection on NO/NC terminals, 70Ω on-resistance at +5V, 2Ω max on-resistance match between channels, and guaranteed break-before-make timing of 5ns - designed for rail-to-rail signal routing in battery-powered audio/video systems.
For engineers reviewing the MAX4561EUT-T datasheet, MAX4561EUT-T pinout, MAX4561EUT-T application, or MAX4561EUT-T equivalent, key selection criteria include ESD robustness in handheld interfaces, low-leakage performance in sample-and-hold circuits, on-resistance flatness across voltage range, and compatibility with 1.8V–12V single-supply operation.
Technical Context
The MAX4561EUT-T implements a CMOS transmission-gate architecture with integrated bidirectional SCRs on NO/NC terminals for ±15kV IEC 1000-4-2 air-gap and contact discharge protection. Its break-before-make switching ensures no transient shorting during SPDT state transitions.
It supports rail-to-rail analog signals from GND to V+, maintains TTL/CMOS logic compatibility with +0.8V to +2.4V input thresholds at +5V supply, and features internal diode clamps plus series current-limiting resistors to prevent latchup during ESD events or improper power sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | 70Ω at +5V supply - enables low insertion loss in precision signal paths |
| On-Resistance Match | ≤2Ω max between NO and NC paths - critical for matched-channel applications like differential switching |
| ESD Protection | ±15kV HBM & IEC 1000-4-2 air-gap on NO/NC - eliminates need for external TVS in portable designs |
| Off-Leakage Current | 0.5nA at +25°C - preserves accuracy in high-impedance sensor or sample-and-hold circuits |
| Break-Before-Make Delay | 5ns typical - prevents momentary short-circuit during SPDT switching in multiplexed systems |
| Supply Range | +1.8V to +12V single supply - supports direct integration into Li-ion, 3.3V, and 5V systems without level shifters |
| Logic Thresholds | +0.8V low / +2.4V high at +5V - ensures reliable control from standard microcontroller GPIOs |
Pinout & Package
The MAX4561EUT-T is housed in a RoHS-compliant 6-pin SOT23 package (U6SN+1 outline), with 0.95mm pitch, 2.9mm × 1.6mm footprint, and thermal pad omitted - suitable for space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Logic control input | Inverts switch state: logic low connects COM to NC; logic high connects COM to NO |
| 2 - NO | Normally open analog terminal | Open-circuit path when IN = low; closed path to COM when IN = high |
| 3 - GND | Analog and digital ground reference | Common return for ESD SCR current and signal integrity - must be low-impedance |
| 4 - NC | Normally closed analog terminal | Closed path to COM when IN = low; open-circuit when IN = high |
| 5 - COM | Common analog terminal | Shared signal port routed to either NO or NC based on IN logic state |
| 6 - V+ | Positive supply rail | Single power source for analog switch core and logic interface - requires 0.1µF local bypass |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog inputs from GND to V+ without clipping - essential for full-scale audio and sensor signals |
| Guaranteed break-before-make | 5ns minimum delay prevents signal shorting during SPDT transition - required in multiplexer safety-critical paths |
| Low on-resistance flatness | ≤4Ω variation over full signal range - minimizes harmonic distortion in AC-coupled video/audio routing |
| ESD-protected NO/NC terminals | ±15kV IEC 1000-4-2 air-gap rating - meets Level 4 system ESD immunity without external components |
| Industry-standard pinout | PIN-compatible with MAX4544 - enables drop-in replacement in existing SOT23-6 layouts |
Applications
| Audio Signal Routing | Portable Medical Sensors |
|---|---|
Use Scenario: Switching microphone or headphone signals in Bluetooth headsets and voice-controlled wearables. IC Role / Device Role / Timing Role: SPDT analog switch selecting between dual audio sources or outputs under MCU GPIO control. Use Value: 70Ω on-resistance and 0.01% THD preserve audio fidelity; ±15kV ESD withstand protects against user-handling discharges. | Use Scenario: Multiplexing low-level biopotential signals (ECG, EEG) into a shared ADC channel. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential sampling of multiple high-impedance electrodes. Use Value: 0.5nA off-leakage at +25°C prevents signal corruption; rail-to-rail support captures full sensor dynamic range. |
| Sample-and-Hold Circuits | Battery-Powered Test Equipment |
Use Scenario: Isolating hold capacitor from input during acquisition phase in precision data loggers. IC Role / Device Role / Timing Role: Low-leakage SPDT switch disconnecting input source while preserving charge on hold capacitor. Use Value: 0.5nA off-leakage limits voltage droop; 5ns break-before-make avoids charge injection errors during switching. | Use Scenario: Configuring signal path gain and filtering in handheld multimeters or oscilloscope probes. IC Role / Device Role / Timing Role: Voltage-range selector and signal-path enabler controlled by embedded ARM Cortex-M0+. Use Value: 1.8V–12V operation allows direct use of single-cell Li-ion or 9V battery; SOT23-6 footprint saves board area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4544EUT-T | Identical pinout, same 6-pin SOT23 package, but rated for −40°C to +70°C (vs. +85°C for MAX4561EUT-T) | Limited high-temperature reliability in industrial enclosures or automotive cabins | Select MAX4544EUT-T only if ambient operating temperature stays ≤+70°C and legacy design reuse is prioritized |
| TMUX1574DSGR | Lower 0.5Ω on-resistance match, but only ±2kV ESD rating on I/O pins and no break-before-make guarantee | Requires external ESD protection in handheld devices; unsuitable for safety-critical break-before-make paths | Choose TMUX1574DSGR only for cost-sensitive, low-ESD environments where leakage and timing are noncritical |
Compared with MAX4544EUT-T, the MAX4561EUT-T extends operational temperature to +85°C and adds guaranteed 5ns break-before-make - critical for industrial sensors and medical devices. Against TMUX1574DSGR, it trades higher on-resistance for ±15kV ESD robustness and deterministic switching behavior without external components.
Availability
MAX4561EUT-T is available at Aetrix Electronics and suitable for battery-powered systems, audio signal routing, and low-voltage data-acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4561EUT-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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and consumer applications.
The MAX4561EUT-T belongs to Maxim's ±15kV ESD-protected analog switch family, engineered specifically for robust signal routing in portable, medical, and test equipment where human-handling ESD and low-leakage precision are mandatory.
FAQ
What is the maximum supply voltage the MAX4561EUT-T can tolerate?
The MAX4561EUT-T has an absolute maximum V+ rating of +13V referenced to GND. It operates reliably across a recommended supply range of +1.8V to +12V. Exceeding +13V risks permanent damage. For +12V operation, Maxim recommends placing a 0.1µF ceramic capacitor directly between V+ and GND, as close to the device pins as possible, to suppress supply transients during ESD events.
Does the MAX4561EUT-T require external ESD protection components?
No, the MAX4561EUT-T does not require external ESD protection on its NO and NC terminals. It integrates on-die bidirectional SCRs that provide ±15kV protection per IEC 1000-4-2 air-gap discharge and ±8kV per contact discharge - sufficient to meet Level 4 system ESD immunity. However, V+ should still be bypassed with a 0.1µF capacitor to ground to shunt residual ESD current.
Is the MAX4561EUT-T pin-compatible with other Maxim analog switches?
Yes, the MAX4561EUT-T uses the industry-standard 6-pin SOT23 pinout and is explicitly pin-compatible with the MAX4544. This allows direct PCB replacement without layout changes. It is not pin-compatible with the 5-pin SOT23 MAX4568/MAX4569 variants due to differing pin count and function mapping.
What is the significance of the 'break-before-make' specification for the MAX4561EUT-T?
The MAX4561EUT-T guarantees a minimum 5ns break-before-make delay, meaning the NC path fully opens before the NO path closes during logic transitions. This prevents momentary short-circuiting between two analog sources - a critical requirement in multiplexed sensor systems, audio routing, and any application where signal integrity during switching must be preserved.
Can the MAX4561EUT-T operate from a 1.8V supply while maintaining specified performance?
Yes, the MAX4561EUT-T is fully specified down to +1.8V supply. At 1.8V, on-resistance increases to approximately 160Ω (typical), and logic thresholds scale to +0.6V (low) and +1.2V (high). All key parameters - including leakage, ESD rating, and switching times - remain valid across the full 1.8V–12V range, making it suitable for ultra-low-power IoT edge nodes.
MAX4561EUT-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 70Ohm
- Channel-to-Channel Matching (ΔRon):
- 500mOhm
- Voltage - Supply, Single (V+):
- 1.8V ~ 12V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 150ns, 80ns
- -3db Bandwidth:
- -
- Charge Injection:
- 17pC
- Channel Capacitance (CS(off), CD(off)):
- 20pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX4561EUT-T FAQ
1.How can I place an order for MAX4561EUT-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4561EUT-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 MAX4561EUT-T reliable?
The price and inventory of MAX4561EUT-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4561EUT-T is usually 5 days.
3.What payment methods are accepted for MAX4561EUT-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4561EUT-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4561EUT-T?
MAX4561EUT-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4561EUT-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 MAX4561EUT-T?
For technical support, including MAX4561EUT-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4561EUT-T requirements.
6.How does Aetrix verify that MAX4561EUT-T is sourced from the original manufacturer or authorized distributors?
All MAX4561EUT-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 MAX4561EUT-T meets industry standards.
7.What is the process for return or replacement of MAX4561EUT-T?
All MAX4561EUT-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4561EUT-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 MAX4561EUT-T part is unused and in its original packaging.
Return procedure for MAX4561EUT-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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