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Analog Devices Inc./Maxim Integrated MAX4626EUK+T
- Part No.:
- MAX4626EUK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4626EUK+T.pdf
- Description:
- IC SW SPST-NOX1 500MOHM SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,788
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Product details
Overview
The MAX4626EUK+T from Maxim Integrated is a low-on-resistance, normally open (NO), single-pole/single-throw (SPST) analog switch operating from +1.8V to +5.5V single supply. It delivers 0.5Ω max on-resistance at +5V, 50ns max turn-on time, and integrated overcurrent protection-enabling robust signal routing in battery-powered audio/video systems and low-voltage data-acquisition paths.
For engineers reviewing the MAX4626EUK+T datasheet, MAX4626EUK+T pinout, MAX4626EUK+T application, or MAX4626EUK+T equivalent, key selection criteria include its SOT23-5 package compatibility with MAX4514, TTL-compatible logic inputs at +5V, and guaranteed RON flatness of ≤0.1Ω across 0–V+ analog range.
Technical Context
The MAX4626EUK+T implements a CMOS transmission-gate architecture with rail-to-rail analog signal handling (0V to V+) and bidirectional current flow up to ±400mA continuous. Its control logic accepts input voltages up to +5.5V independent of V+, supporting mixed-voltage system interfacing.
Overcurrent protection operates via voltage-drop sensing across the on-resistance: when VDS ≥ 0.6V (typ), the device enters thermal cycling mode (5ms off, then retry), with immediate shutdown for direct shorts. Charge injection is limited to 40pC (typ), minimizing transient glitches in precision sampling paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 0.5Ω max at +5V supply - enables <10mV drop at 20mA, critical for low-loss signal routing |
| RON Flatness | 0.1Ω max at +5V - ensures consistent gain/attenuation across full 0–V+ analog input range |
| Turn-On/Off Time | tON = 50ns max, tOFF = 30ns max - supports >10MHz switching in high-speed multiplexing |
| Analog Signal Range | 0V to V+ - allows rail-to-rail signal pass-through without clipping in single-supply systems |
| Logic Input Compatibility | TTL-compatible at +5V (VINH = 2.4V, VINL = 0.8V) - interfaces directly with standard microcontroller GPIO |
| Overcurrent Threshold | 2.4A typical - protects downstream circuitry during short-circuit faults without external components |
| Charge Injection | 40pC max - minimizes voltage kick at COM node, reducing error in ADC sample-and-hold stages |
Pinout & Package
SOT23-5 package (5-pin, 1.6mm × 2.9mm footprint, 0.95mm height), RoHS-compliant, tape-and-reel delivery.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - COM | Analog Common Terminal | Bidirectional signal path; connects to load or source depending on switch state |
| 2 - NO | Normally Open Analog Terminal | Open-circuit when IN = LOW; closed to COM only when IN = HIGH |
| 3 - GND | Ground Reference | Return path for supply current and logic reference; must be low-impedance |
| 4 - IN | Digital Control Input | Active-HIGH logic: drives switch ON when ≥2.4V (TTL-high), OFF when ≤0.8V (TTL-low) |
| 5 - V+ | Positive Supply Input | Single power rail (1.8V–5.5V); powers analog switch core and logic interface |
Key Features
| Feature | Design Value |
|---|---|
| Low RON with tight flatness | 0.5Ω max RON, 0.1Ω max flatness at +5V - preserves signal integrity in precision sensor and audio paths |
| Integrated overcurrent protection | Self-resetting thermal cycling (5ms off-time) - eliminates need for external fuses or current-sense ICs |
| Wide single-supply operation | +1.8V to +5.5V range - supports direct integration into Li-ion (3.7V), USB (5V), and low-power MCU systems |
| Rail-to-rail analog capability | 0V to V+ signal handling - avoids level-shifting in single-supply data acquisition front-ends |
| TTL-compatible digital interface | VINH = 2.4V, VINL = 0.8V at +5V - enables direct connection to legacy 5V logic without pull-ups or buffers |
Applications
| Audio Signal Routing | Battery-Powered Instrumentation |
|---|---|
|
Use Scenario: Switching between multiple microphone inputs or headphone outputs in portable audio devices. IC Role / Device Role / Timing Role: SPST analog switch controlling signal path continuity with minimal THD and crosstalk. Use Value: 0.5Ω RON and 40pC charge injection prevent audible pop/click and preserve SNR in 24-bit audio chains. |
Use Scenario: Multiplexing sensor signals (thermocouple, RTD, strain gauge) into a shared ADC channel in handheld test equipment. IC Role / Device Role / Timing Role: Low-drift, low-leakage analog switch enabling accurate DC-coupled measurements. Use Value: <2nA leakage at +25°C and 0.1Ω RON flatness minimize offset errors and gain nonlinearity across temperature. |
| PCMCIA/CardBus Interface | Cellular Phone Baseband |
|
Use Scenario: Isolating host controller I/O lines from hot-plugged PCMCIA cards to prevent bus contention and ESD damage. IC Role / Device Role / Timing Role: Normally open protection switch activated only during card enumeration. Use Value: Overcurrent protection triggers at 2.4A, safeguarding 3.3V I/O rails during card insertion transients. |
Use Scenario: Routing RF front-end calibration signals (TX/RX path tuning) in LTE/WCDMA transceivers. IC Role / Device Role / Timing Role: High-speed SPST switch enabling <50ns path reconfiguration during modem state transitions. Use Value: 50ns tON/30ns tOFF supports real-time antenna tuning without interrupting packet timing budgets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4514EUK+T | Pin-compatible but lacks overcurrent protection; RON = 0.8Ω max at +5V | Suitable for cost-sensitive, non-fault-tolerant signal routing where protection is handled externally | Select MAX4514EUK+T only if board layout rework is acceptable and fault protection is implemented at system level |
| TMUX1574DCKR | Lower RON (0.35Ω typ), no built-in overcurrent protection, supports 1.08V–5.5V supply | Better for ultra-low-voltage (1.2V–1.8V) MCU interfaces; requires external current limiting for fault conditions | Choose TMUX1574DCKR when operating below 2.0V or when tighter RON tolerance outweighs integrated protection needs |
Compared with MAX4514EUK+T and TMUX1574DCKR, the MAX4626EUK+T uniquely combines pin compatibility with MAX4514, sub-0.6Ω RON, and self-contained overcurrent response-making it optimal for space-constrained, safety-critical portable designs where BOM count and fault resilience are prioritized.
Availability
MAX4626EUK+T is available at Aetrix Electronics and suitable for battery-operated equipment, audio/video signal routing, and low-voltage data-acquisition systems requiring stable component supply and long-term lifecycle support.
Supply support for MAX4626EUK+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, communications, and consumer applications.
The MAX4626EUK+T belongs to Maxim's low-voltage analog switch product line, engineered specifically for high-fidelity, fault-tolerant signal routing in portable and energy-constrained systems.
FAQ
What is the maximum continuous current rating for the MAX4626EUK+T?
The MAX4626EUK+T supports ±400mA continuous current between NO and COM terminals under normal operation. This rating assumes ambient temperature ≤+70°C and proper PCB thermal relief. At higher temperatures or with inadequate copper area, derating applies per the 7.1mW/°C thermal coefficient specified in the datasheet. The MAX4626EUK+T will activate overcurrent protection above ~2.4A, regardless of duration.
Does the MAX4626EUK+T require external protection diodes for overvoltage tolerance?
No-external diodes are not required for basic overvoltage protection. The MAX4626EUK+T includes internal clamping diodes that limit analog pin voltages to within -0.3V and (V+ + 0.3V). However, if analog signals may exceed ±20mA or dip significantly below GND, external diodes (as shown in Figure 1 of the MAX4626EUK+T datasheet) are recommended to prevent latch-up and ensure reliability. Adding them reduces analog range by ~0.7V.
Can the MAX4626EUK+T operate with a 1.8V supply while maintaining TTL-compatible logic inputs?
No-the MAX4626EUK+T's logic inputs are TTL-compatible only when V+ = +5V ±10% (i.e., 4.5V–5.5V), with VINH = 2.4V and VINL = 0.8V. At 1.8V supply, the logic thresholds scale down (VINH ≈ 0.6V, VINL ≈ 0.2V), making it incompatible with standard 5V or 3.3V logic drivers. For 1.8V systems, use level-shifters or select a switch with fixed-threshold inputs like the TMUX1574.
How does the overcurrent protection in the MAX4626EUK+T behave during a sustained short circuit?
During a sustained short, the MAX4626EUK+T enters thermal cycling mode: it shuts off for 5ms, then attempts to re-enable. If the overload persists, it repeats this cycle indefinitely, producing a pulsed output. For a direct short, the device responds within 1μs by turning off and remaining off for 5ms before retrying. This behavior prevents thermal runaway while allowing automatic recovery if the fault clears-no manual reset is needed. The MAX4626EUK+T does not latch off permanently.
Is the MAX4626EUK+T pin-compatible with other SOT23-5 analog switches beyond the MAX4514?
Yes-the MAX4626EUK+T shares identical pinout (COM, NO, GND, IN, V+) and footprint with the MAX4514EUK+T, enabling drop-in replacement in existing layouts. It is not pin-compatible with the MAX4627 (NC version) or MAX4628 (dual-input version), which differ in function and pin assignment. Always verify schematic symbol and PCB footprint match the MAX4626EUK+T's 1–5 pin mapping before substitution.
MAX4626EUK+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
MAX4626EUK+T FAQ
1.How can I place an order for MAX4626EUK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4626EUK+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 MAX4626EUK+T reliable?
The price and inventory of MAX4626EUK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4626EUK+T is usually 5 days.
3.What payment methods are accepted for MAX4626EUK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4626EUK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4626EUK+T?
MAX4626EUK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4626EUK+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 MAX4626EUK+T?
For technical support, including MAX4626EUK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4626EUK+T requirements.
6.How does Aetrix verify that MAX4626EUK+T is sourced from the original manufacturer or authorized distributors?
All MAX4626EUK+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 MAX4626EUK+T meets industry standards.
7.What is the process for return or replacement of MAX4626EUK+T?
All MAX4626EUK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4626EUK+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 MAX4626EUK+T part is unused and in its original packaging.
Return procedure for MAX4626EUK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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