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Analog Devices Inc./Maxim Integrated MAX4627EUK+T
- Part No.:
- MAX4627EUK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4627EUK+T.pdf
- Description:
- IC SW SPST-NOX1 500MOHM SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:5,245
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Product details
Overview
The MAX4627EUK+T from Maxim Integrated is a normally closed (NC), low-on-resistance SPST analog switch operating from a single +1.8V to +5.5V supply, delivering 0.5Ω max RON at +5V, 50ns max tON, and integrated overcurrent protection - used for battery-powered signal routing in portable audio and data-acquisition systems.
For engineers reviewing the MAX4627EUK+T datasheet, MAX4627EUK+T pinout, MAX4627EUK+T application, or MAX4627EUK+T equivalent, key selection criteria include NC default state, SOT23-5 footprint compatibility with MAX4515, guaranteed RON flatness ≤0.1Ω, and thermal-current limiting behavior under sustained short-circuit conditions.
Technical Context
The MAX4627EUK+T implements a CMOS transmission-gate architecture with rail-to-rail analog signal handling (0V to V+), TTL-compatible digital control inputs (VINH = 2.4V, VINL = 0.8V @ +5V), and bidirectional current paths supporting ±400mA continuous switching. Its internal current-limit circuit triggers at ~2.4A and cycles off/on with 5ms recovery intervals under overload.
It features low charge injection (40pC), high off-isolation (–51dB @ 1MHz), and stable on-capacitance (130pF) - enabling low-distortion audio routing and precision low-voltage data sampling without signal degradation across the full analog range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RON (max) | 0.5Ω @ +5V supply - enables <10mV drop at 20mA, critical for low-voltage sensor interfaces |
| RON flatness (max) | 0.1Ω @ +5V - ensures consistent gain/attenuation across 0–5V signal swing in ADC front-ends |
| tON/tOFF | 50ns/30ns max - supports >10MHz switching in high-speed multiplexing applications |
| Overcurrent threshold | 2.4A typical - protects downstream circuitry during accidental shorts in power-routing paths |
| Analog signal range | 0V to V+ - allows full-rail signal pass-through without clipping in single-supply systems |
| Logic input voltage range | 0.8V low / 2.4V high @ +5V - ensures reliable TTL-level interfacing with microcontrollers |
| Off-leakage current | ±20nA max - preserves accuracy in high-impedance sensor or reference circuits |
Pinout & Package
SOT23-5 package (5-pin, 1.6mm × 2.9mm, 0.95mm height), RoHS-compliant, tape-and-reel delivery.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - COM | Analog common terminal | Bidirectional path shared between NC and system load; must be routed with controlled impedance for RF-sensitive apps |
| 2 - NC | Normally closed analog terminal | Internally connected to COM when IN = 0; breaks connection only upon logic high - failsafe for power-up states |
| 3 - GND | Digital/analog ground reference | Shared return for supply and logic; requires low-inductance connection to minimize switching noise coupling |
| 4 - IN | Digital control input | Active-high enable: drives switch open (COM–NC break) when ≥2.4V; accepts up to +5.5V regardless of V+ |
| 5 - V+ | Positive supply input | Single supply rail (+1.8V to +5.5V); powers analog switch core and logic interface; decoupling capacitor required |
Key Features
| Feature | Design Value |
|---|---|
| Normally closed (NC) default | Ensures fail-safe signal continuity during power loss or MCU reset - critical for battery backup paths |
| Integrated overcurrent protection | Auto-recovers after 5ms off-time under overload; prevents latch-up and PCB trace damage without external fusing |
| 0.1Ω RON flatness | Maintains linearity in precision instrumentation amplifiers and calibrated sensor bridges across full voltage range |
| TTL-compatible logic inputs | Eliminates level-shifter requirements when interfacing with legacy 5V microcontrollers or FPGAs |
| Low 40pC charge injection | Minimizes voltage glitch on high-Z nodes (e.g., sample-hold capacitors), preserving ADC accuracy |
Applications
| Audio Signal Routing | Battery Power Path Control |
|---|---|
|
Use Scenario: Switching microphone or headphone signals in smartphones and wearables with minimal THD. IC Role / Device Role / Timing Role: NC analog switch providing low-RON signal path with automatic disconnect on mute command. Use Value: 0.5Ω RON and 40pC charge injection prevent audible pop/click and preserve SNR >95dB. |
Use Scenario: Enabling/disabling backup battery connection during main power failure in medical monitors. IC Role / Device Role / Timing Role: Fail-safe NC switch maintaining VBAT continuity until MCU asserts IN high to isolate fault. Use Value: 2.4A overcurrent limit and thermal cycling protect Li-ion cells from unsafe discharge currents. |
| Low-Voltage Data Acquisition | PCMCIA/CardBus Interface |
|
Use Scenario: Multiplexing sensor outputs (thermocouples, RTDs) into a 16-bit SAR ADC in industrial IoT nodes. IC Role / Device Role / Timing Role: Precision analog switch with flat RON ensuring channel-to-channel gain matching ≤0.02%. Use Value: 0.1Ω RON flatness and ±20nA leakage avoid offset drift and calibration errors at sub-mV levels. |
Use Scenario: Isolating 3.3V I/O lines between host controller and PCMCIA card during hot insertion. IC Role / Device Role / Timing Role: Bidirectional NC switch blocking signal faults while permitting live-card detection. Use Value: –51dB off-isolation at 1MHz suppresses crosstalk between card bus lanes and host timing signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4515EUK+T | Identical pinout, same NC function, but rated for –40°C to +70°C only; no overcurrent protection | Lacks current-limiting safety feature - unsuitable for unattended power-routing or battery-protection use cases | Select MAX4515EUK+T only if ambient temperature stays ≤+70°C and external current monitoring is already implemented |
| TMUX1574DSFR | SPST NC, 0.7Ω RON @ +3.3V, no overcurrent protection, 1.8V–5.5V supply, SOT23-5 compatible | Higher RON and no fault protection - better for cost-sensitive, non-safety-critical signal routing | Choose TMUX1574DSFR where BOM cost is prioritized over robustness and thermal safety compliance |
Compared with MAX4515EUK+T and TMUX1574DSFR, the MAX4627EUK+T uniquely combines NC default state, guaranteed overcurrent protection, and extended +85°C operation - making it the only option for safety-critical, thermally demanding, or unmonitored power-path applications.
Availability
MAX4627EUK+T is available at Aetrix Electronics and suitable for battery-operated equipment, audio signal routing, and low-voltage data-acquisition systems requiring stable component supply across industrial temperature ranges.
Supply support for MAX4627EUK+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) designs precision analog, mixed-signal, and power-management ICs for industrial, automotive, and communications markets.
The MAX4626/MAX4627/MAX4628 family targets low-voltage, high-reliability analog switching - specifically engineered for fail-safe signal/power routing where NC behavior and integrated fault protection are mandatory.
FAQ
What is the default state of the MAX4627EUK+T analog switch?
The MAX4627EUK+T is a normally closed (NC) switch: COM and NC terminals are conductive when the IN pin is logic low (≤0.8V). It opens only when IN is driven high (≥2.4V). This fail-safe behavior ensures uninterrupted signal or power flow during power-up, reset, or control loss - a key distinction from the NO MAX4626EUK+T.
Does the MAX4627EUK+T provide overcurrent protection, and how does it behave under fault conditions?
Yes, the MAX4627EUK+T includes integrated overcurrent protection that activates at ~2.4A. Under sustained overload, it cycles off for 5ms then attempts reconnection; a direct short causes 1μs on-pulse followed by 5ms off-time. This behavior protects both the MAX4627EUK+T and downstream circuitry without external components - unlike alternatives such as MAX4515EUK+T which lack this feature.
Is the MAX4627EUK+T pin compatible with other analog switches, and what are the implications?
The MAX4627EUK+T is pin compatible with the MAX4515EUK+T in the SOT23-5 package, sharing identical pinout (COM, NC, GND, IN, V+). However, MAX4515EUK+T lacks overcurrent protection and has a narrower temperature rating (–40°C to +70°C vs. +85°C for MAX4627EUK+T), so direct substitution requires validation of thermal and safety margins in the target design.
What is the maximum analog signal voltage range supported by the MAX4627EUK+T?
The MAX4627EUK+T supports analog signals from 0V to V+ (i.e., rail-to-rail), with no clamping or distortion across this range. When V+ = +5V, signals from 0V to +5V pass bidirectionally with ≤0.1Ω RON flatness - enabling accurate DC-coupled sensor interfacing and audio routing without level-shifting circuitry.
Can the MAX4627EUK+T operate from a 3.3V supply, and how does performance change?
Yes, the MAX4627EUK+T operates from +1.8V to +5.5V. At +3.3V, RON increases to 0.9Ω max (vs. 0.5Ω at +5V), tON/tOFF extend to 80ns/40ns max, and logic thresholds shift to VINL = 0.6V / VINH = 2.0V. All specifications remain fully guaranteed across –40°C to +85°C, making it suitable for mixed-voltage portable systems.
MAX4627EUK+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:
- 1
- On-State Resistance (Max):
- 500mOhm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 50ns, 30ns
- -3db Bandwidth:
- -
- Charge Injection:
- 40pC
- Channel Capacitance (CS(off), CD(off)):
- 65pF, 65pF
- Current - Leakage (IS(off)) (Max):
- 2nA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX4627EUK+T FAQ
1.How can I place an order for MAX4627EUK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4627EUK+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 MAX4627EUK+T reliable?
The price and inventory of MAX4627EUK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4627EUK+T is usually 5 days.
3.What payment methods are accepted for MAX4627EUK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4627EUK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4627EUK+T?
MAX4627EUK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4627EUK+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 MAX4627EUK+T?
For technical support, including MAX4627EUK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4627EUK+T requirements.
6.How does Aetrix verify that MAX4627EUK+T is sourced from the original manufacturer or authorized distributors?
All MAX4627EUK+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 MAX4627EUK+T meets industry standards.
7.What is the process for return or replacement of MAX4627EUK+T?
All MAX4627EUK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4627EUK+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 MAX4627EUK+T part is unused and in its original packaging.
Return procedure for MAX4627EUK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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