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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:3,226
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Product details
Overview
MAX4561EUT+T from Maxim Integrated is a ±15kV ESD-protected, single-pole/double-throw (SPDT) CMOS analog switch operating from +1.8V to +12V. It features 70Ω on-resistance at +5V, 2Ω max on-resistance match between channels, 5ns guaranteed break-before-make timing, and rail-to-rail signal handling-designed for precision signal routing in battery-powered audio systems.
For engineers reviewing the MAX4561EUT+T datasheet, MAX4561EUT+T pinout, MAX4561EUT+T application, or MAX4561EUT+T equivalent, key selection criteria include ESD robustness (±15kV HBM/IEC air-gap), low leakage (0.5nA off-leakage at +25°C), tight on-resistance matching, and SOT23-6 package compatibility with legacy MAX4544 designs.
Technical Context
The MAX4561EUT+T implements a CMOS transmission-gate SPDT architecture with integrated bidirectional SCRs on NO and NC terminals for ±15kV IEC 1000-4-2 ESD protection. Its break-before-make switching ensures no signal shorting during state transitions, critical for multiplexed sensor or audio paths.
It supports rail-to-rail analog signals across its full supply range (+1.8V to +12V), with on-resistance flatness of ≤4Ω over the signal range and logic thresholds (VIH = +2.4V, VIL = +0.8V) ensuring TTL/CMOS compatibility at +5V. The device uses Beyond-the-Rails™ protection without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | SPDT (single-pole/double-throw) with guaranteed break-before-make |
| On-Resistance (RON) | 70Ω max at +5V - enables low insertion loss in 50Ω/600Ω signal paths |
| On-Resistance Match | 2Ω max - ensures channel-to-channel gain tracking in differential or dual-path circuits |
| ESD Protection | ±15kV HBM & IEC 1000-4-2 air-gap on NO/NC - eliminates need for external TVS diodes |
| Off-Leakage Current | 0.5nA at +25°C - preserves accuracy in high-impedance sample-and-hold or sensor front-ends |
| Supply Range | +1.8V to +12V - supports single-supply operation from Li-ion batteries to industrial rails |
| Logic Compatibility | TTL/CMOS with VIH = +2.4V, VIL = +0.8V at +5V - interoperable with standard microcontroller GPIOs |
Pinout & Package
MAX4561EUT+T is housed in a RoHS-compliant 6-pin SOT23 package (U6SN+1 outline), footprint-compatible with industry-standard SOT23-6 land pattern 90-0175. Thermal derating is 8.7mW/°C above +70°C; max continuous power dissipation is 696mW at +70°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NO (Normally Open) | Analog output path closed only when IN = logic high; ESD-protected ±15kV |
| 2 | V+ | Positive supply input; bypass with ≥0.1µF capacitor near pin for ESD stability |
| 3 | GND | Ground reference for logic and analog domains; return path for SCR clamp current |
| 4 | NC (Normally Closed) | Analog output path closed only when IN = logic low; ESD-protected ±15kV |
| 5 | COM | Common analog terminal; handles rail-to-rail signals up to V+ and GND |
| 6 | IN | Logic control input; TTL/CMOS compatible; controls NO/NC switching state |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make timing | Guaranteed 5ns minimum - prevents momentary shorting in multiplexed signal chains |
| Rail-to-rail signal handling | Supports analog inputs from GND to V+ - eliminates level-shifting in low-voltage systems |
| On-resistance flatness | ≤4Ω variation over full signal range - maintains consistent gain/attenuation across voltage swing |
| Charge injection | 17pC max - minimizes voltage glitch in sample-and-hold and ADC front-end applications |
| Industry-standard pinout | PIN-compatible with MAX4544 - enables drop-in replacement without PCB redesign |
Applications
| Audio Signal Routing | Battery-Powered Data Acquisition |
|---|---|
Use Scenario: Switching between microphone inputs and line-level outputs in portable voice recorders or conferencing devices. IC Role / Device Role / Timing Role: SPDT analog switch selecting signal path under microcontroller GPIO control; break-before-make prevents pop/click artifacts. Use Value: ±15kV ESD protection guards against user-handling discharge; 70Ω RON preserves SNR in 20kHz audio bandwidth. | Use Scenario: Multiplexing multiple sensor outputs (thermistor, pressure, accelerometer) into a shared ADC channel. IC Role / Device Role / Timing Role: Low-leakage SPDT switch enabling sequential sampling; 0.5nA off-leakage avoids bias error in high-Z sensor nodes. Use Value: Rail-to-rail capability accommodates varying sensor output ranges; +1.8V min supply extends battery life in coin-cell systems. |
| High-ESD Industrial Interfaces | Communications Circuit Protection |
Use Scenario: Protecting analog I/O lines on PLC modules exposed to field wiring with frequent human contact. IC Role / Device Role / Timing Role: Front-end ESD guard for analog inputs; SCRs shunt transients to GND before reaching downstream circuitry. Use Value: Eliminates need for discrete TVS diodes and RC filters; 70mA SCR holding current at +85°C informs safe current-limiting design. | Use Scenario: Isolating analog control signals (e.g., VCO tuning voltage, PA bias) in RF transceivers during power cycling or fault conditions. IC Role / Device Role / Timing Role: Signal gate preventing DC leakage or transient coupling between RF and baseband sections. Use Value: 20pF NO/NC off-capacitance minimizes RF crosstalk; 120Ω RON at +3V supports low-power bias control loops. |
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 | Same SOT23-6 pinout, identical RON (70Ω), but rated only to +70°C ambient and lacks ±15kV IEC air-gap ESD rating | Suitable for commercial-grade, non-field-deployed equipment where ESD exposure is controlled | Select MAX4544EUT+T only if temperature range and ESD requirements are relaxed; not drop-in for industrial use. |
| TMUX1574DSGR | Lower RON (0.5Ω typical), wider supply (1.08V–5.5V), but only ±4kV HBM ESD; different pinout (8-pin VSSOP) | Better for ultra-low-loss, high-speed data paths but requires PCB redesign and external ESD protection | Choose TMUX1574DSGR only when sub-1Ω RON is mandatory and layout changes are acceptable. |
Compared with MAX4544EUT+T and TMUX1574DSGR, the MAX4561EUT+T uniquely delivers industrial-grade ±15kV ESD robustness in a compact SOT23-6 package while maintaining tight on-resistance matching and guaranteed break-before-make-making it optimal for field-deployed, battery-operated analog routing where reliability and board space are critical.
Availability
MAX4561EUT+T is available at Aetrix Electronics and suitable for high-ESD environments, battery-powered systems, and audio signal routing requiring stable component supply across extended temperature ranges (-40°C to +85°C).
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 ESD-hardened analog switch family, engineered specifically for reliable signal routing in uncontrolled environments-where ±15kV ESD immunity, rail-to-rail operation, and minimal signal distortion are mandatory.
FAQ
What is the maximum supply voltage rating for MAX4561EUT+T?
The MAX4561EUT+T has an absolute maximum supply voltage (V+) of +13V referenced to GND. Its operational range is +1.8V to +12V. Exceeding +13V risks permanent damage. For +12V operation, a minimum 0.1µF bypass capacitor must be placed directly between V+ and GND near the device to ensure ESD stability and supply integrity.
Does MAX4561EUT+T support rail-to-rail analog signals?
Yes, the MAX4561EUT+T fully supports rail-to-rail analog signal handling-from GND to V+-across its entire supply range (+1.8V to +12V). This capability eliminates the need for external level shifters in low-voltage systems and ensures accurate signal passage without clipping, as confirmed in the device's functional diagrams and electrical characteristics tables.
Is MAX4561EUT+T pin-compatible with any other Maxim analog switches?
Yes, the MAX4561EUT+T features industry-standard pinout and is explicitly pin-compatible with the MAX4544EUT+T in the same 6-pin SOT23 package. This allows direct mechanical replacement in existing layouts, though designers must verify that the MAX4544's lower ESD rating (no ±15kV IEC air-gap) and narrower temperature range (-40°C to +70°C) meet system requirements.
What is the guaranteed break-before-make time for MAX4561EUT+T?
The MAX4561EUT+T guarantees a minimum break-before-make delay of 5ns under specified test conditions (VNO/VNC = 3V, RL = 300Ω, CL = 35pF). This parameter is unique to the MAX4561 among the MAX456x family and is documented in both the Features section and Electrical Characteristics table for +5V supply operation.
How does the ESD protection architecture of MAX4561EUT+T work on NO and NC pins?
The MAX4561EUT+T integrates bidirectional silicon-controlled rectifiers (SCRs) between NO/NC pins and GND to provide ±15kV IEC 1000-4-2 air-gap ESD protection. During an ESD event, the SCR triggers in nanoseconds, clamping the voltage and diverting current safely to ground. System design must current-limit external sources to ≤35mA (half the +85°C SCR holding current of 70mA) to ensure automatic turn-off post-event.
MAX4561EUT+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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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