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Analog Devices Inc./Maxim Integrated MAX4625EUT+T
- Part No.:
- MAX4625EUT+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SOT-23-6
- Datasheet:
-
MAX4625EUT+T.pdf
- Description:
- IC SWITCH SPDT X 1 1OHM SOT6
- Quantity:
- Payment:
- Shipping:
Inventory:9,206
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Product details
Overview
MAX4625EUT+T from Maxim Integrated is a make-before-break SPDT analog switch optimized for low-voltage signal routing, featuring 1Ω max on-resistance at +5V, 50ns max turn-on/turn-off time, and integrated overcurrent protection. It operates from a single +1.8V to +5.5V supply and is used in battery-powered audio routing, PCMCIA card switching, and low-voltage data-acquisition front-ends.
For engineers reviewing the MAX4625EUT+T datasheet, MAX4625EUT+T pinout, MAX4625EUT+T application, or MAX4625EUT+T equivalent, key selection criteria include guaranteed make-before-break timing, RON flatness ≤0.12Ω, overcurrent threshold of 1.2A, and SOT23-6 package compatibility with legacy MAX4544 designs.
Technical Context
The MAX4625EUT+T implements a CMOS-based SPDT architecture with internal current-limit and thermal-shutdown circuitry that activates after ~0.6V drop across the channel. Its logic input accepts rail-to-rail voltages up to +5.5V independent of V+, enabling mixed-supply interfacing.
Unlike the break-before-make MAX4624, the MAX4625 guarantees make-before-break operation with tMBB ≤6ns (typ) and no interruption during signal path transfer-critical for glitch-sensitive audio and communications circuits where continuity must be preserved during switching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 1Ω max at +5V - enables ≤100mA continuous analog current with <5mV IR drop at full load |
| RON Flatness | 0.12Ω max over 0–5V range - ensures consistent gain/attenuation across full signal swing |
| Switching Speed | tON/tOFF = 50ns max - supports >10MHz digital control rates and fast multiplexing |
| Overcurrent Threshold | 1.2A typ - protects against short circuits while allowing brief 400mA peak pulses |
| Supply Range | +1.8V to +5.5V - supports direct interface with Li-ion, 3.3V, and 5V systems without level shifters |
| Logic Compatibility | TTL-compatible at +5V - accepts 0.8V/2.4V thresholds; IN tolerant to +5.5V regardless of V+ |
| Off-Leakage Current | ±20nA max at +25°C - preserves signal integrity in high-impedance sensor interfaces |
Pinout & Package
MAX4625EUT+T is housed in a standard 6-pin SOT23-6 package (1.6mm × 2.8mm × 1.1mm), RoHS-compliant and optimized for space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Digital control input | Active-high logic pin; drives internal switch matrix; tolerant to 0–5.5V regardless of V+ setting |
| 2 - V+ | Positive supply rail | Single power source for analog and logic sections; must be applied before analog signals to prevent latch-up |
| 3 - GND | Ground reference | Analog and digital common return; required for proper overcurrent detection and RON specification |
| 4 - NC | Normally closed analog terminal | Connected to COM when IN = low; bidirectional signal path with same RON and bandwidth as NO |
| 5 - COM | Common analog terminal | Central I/O node; connects to either NC or NO depending on IN state; supports ±200mA continuous current |
| 6 - NO | Normally open analog terminal | Connected to COM when IN = high; identical electrical specs to NC; enables SPDT signal path selection |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed make-before-break | tMBB ≤6ns ensures zero-break continuity during switching-essential for audio mute/unmute and live signal re-routing |
| Integrated overcurrent protection | Auto-cycles off/on under sustained overload (5ms on, 5ms off); responds instantly to hard shorts with 1µs pulse |
| Low RON flatness (0.12Ω) | Maintains linearity across full 0–5V analog range-critical for precision instrumentation and DAC output switching |
| Rail-to-rail logic input tolerance | IN accepts 0–5.5V regardless of V+ (1.8–5.5V), simplifying interface with FPGAs, microcontrollers, and mixed-voltage systems |
| Pin compatibility with MAX4544 | Drop-in replacement for legacy designs-no PCB changes required; shares identical SOT23-6 footprint and pin mapping |
Applications
| Audio Signal Routing | PCMCIA Card Switching |
|---|---|
Use Scenario: Selecting between microphone and headset paths in dual-mode cellular handsets. IC Role / Device Role / Timing Role: SPDT analog switch providing glitch-free path selection with make-before-break timing. Use Value: Eliminates audible click/pop during mode transitions by maintaining signal continuity during switching. | Use Scenario: Isolating host-side I/O lines from PCMCIA card during hot insertion/removal. IC Role / Device Role / Timing Role: Bidirectional signal gate enabling safe hot-swap isolation with overcurrent fault containment. Use Value: Prevents bus contention and protects host controller from card-induced surge currents up to 400mA peak. |
| Battery-Powered Data Acquisition | Low-Voltage Communications Interface |
Use Scenario: Multiplexing sensor outputs (thermocouple, RTD, strain gauge) into a shared ADC channel. IC Role / Device Role / Timing Role: Low-RON, low-leakage analog switch preserving signal fidelity in high-Z sensor front-ends. Use Value: Limits measurement error to <0.05% due to RON flatness ≤0.12Ω and leakage <20nA at 25°C. | Use Scenario: Routing UART, SPI, or I²C lines between baseband processor and peripheral modules in modems. IC Role / Device Role / Timing Role: Voltage-level agnostic signal router supporting 1.8V–5.5V logic domains without external translators. Use Value: Reduces BOM count by eliminating level shifters while maintaining <50ns propagation delay across all supply voltages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4625EZT+T | Same die, Thin SOT23-6 package (1.0mm height); identical electrical specs | Preferred for new designs requiring lower profile; same thermal derating (6.25mW/°C above +70°C) | Select for space-constrained layouts where Z-height <1.1mm is critical |
| MAX4544EUT+T | No overcurrent protection; break-before-make only; RON = 1.5Ω max at +5V | Lacks fault resilience; unsuitable for short-circuit-prone environments like docking stations or hot-swap cards | Choose only if cost sensitivity outweighs protection requirements and MB/B timing is unnecessary |
Compared with MAX4625EZT+T, the MAX4625EUT+T offers identical performance in a standard-height SOT23-6-ideal for legacy board reuse. Against MAX4544EUT+T, the MAX4625EUT+T adds essential overcurrent safety and guaranteed make-before-break, justifying its use in robust portable and communications systems.
Availability
MAX4625EUT+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 across industrial temperature ranges (–40°C to +85°C).
Supply support for MAX4625EUT+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 MAX4624/MAX4625 product line was designed specifically for low-voltage, high-fidelity analog signal routing in portable and space-constrained systems-emphasizing low RON, fast switching, and integrated fault protection.
FAQ
What is the guaranteed make-before-break timing for MAX4625EUT+T?
The MAX4625EUT+T guarantees a make-before-break delay (tMBB) of ≤6ns at +25°C and ≤8ns across the full –40°C to +85°C operating range. This specification ensures uninterrupted signal continuity during switching transitions-critical for audio mute/unmute functions and live signal reconfiguration without glitches. The timing is validated per Figure 3b in the official MAX4624/MAX4625 datasheet and applies exclusively to the MAX4625EUT+T variant.
Does MAX4625EUT+T support rail-to-rail analog signal levels?
Yes, the MAX4625EUT+T supports analog signal levels from GND to V+ (0V to +5.5V) with minimal RON variation-flatness is specified at ≤0.12Ω over the full 0–5V range at +5V supply. This enables accurate transmission of unipolar and bipolar signals (when referenced appropriately) without clipping or distortion, provided V+ is within the +1.8V to +5.5V operating range. The device is fully bidirectional, so NO, NC, and COM may serve as inputs or outputs interchangeably.
What overcurrent protection behavior does MAX4625EUT+T exhibit under a short-circuit condition?
Under a hard short, the MAX4625EUT+T detects overcurrent within microseconds and limits output to a 1µs pulse followed by a 5ms off period-repeating this cycle until the fault clears. For sustained overload (e.g., 1.2A for >100ms), it enters thermal shutdown and cycles on/off every 5ms. This behavior is intrinsic to the MAX4625EUT+T's internal protection circuitry and requires no external components. The 1.2A threshold is typical and tested across temperature; actual trip point varies ±15% over –40°C to +85°C.
Is MAX4625EUT+T pin-compatible with MAX4544EUT+T?
Yes, the MAX4625EUT+T is fully pin-compatible with the MAX4544EUT+T in the SOT23-6 package: both share identical pinout (IN, V+, GND, NC, COM, NO), footprint, and solder pad layout. However, the MAX4625EUT+T adds overcurrent protection and guaranteed make-before-break timing-features absent in the MAX4544EUT+T. No PCB redesign is needed for drop-in replacement, though system-level validation of protection behavior and timing is recommended.
What is the maximum continuous current rating for MAX4625EUT+T at +85°C ambient?
The MAX4625EUT+T supports ±200mA continuous current through NO or NC to COM at +85°C ambient, as specified in Absolute Maximum Ratings. At elevated temperatures, derating applies: the 6-pin SOT23 package has a thermal resistance of 140°C/W, limiting practical continuous current to ~150mA when power dissipation exceeds 75mW. This value is confirmed for the MAX4625EUT+T across its full operating range and assumes adequate PCB copper area for heat sinking.
MAX4625EUT+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):
- 1Ohm
- Channel-to-Channel Matching (ΔRon):
- 60mOhm
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 50ns, 50ns
- -3db Bandwidth:
- -
- Charge Injection:
- 65pC
- Channel Capacitance (CS(off), CD(off)):
- 32pF
- Current - Leakage (IS(off)) (Max):
- 2nA
- Crosstalk:
- -57dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX4625EUT+T FAQ
1.How can I place an order for MAX4625EUT+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4625EUT+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 MAX4625EUT+T reliable?
The price and inventory of MAX4625EUT+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4625EUT+T is usually 5 days.
3.What payment methods are accepted for MAX4625EUT+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4625EUT+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4625EUT+T?
MAX4625EUT+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4625EUT+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 MAX4625EUT+T?
For technical support, including MAX4625EUT+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4625EUT+T requirements.
6.How does Aetrix verify that MAX4625EUT+T is sourced from the original manufacturer or authorized distributors?
All MAX4625EUT+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 MAX4625EUT+T meets industry standards.
7.What is the process for return or replacement of MAX4625EUT+T?
All MAX4625EUT+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4625EUT+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 MAX4625EUT+T part is unused and in its original packaging.
Return procedure for MAX4625EUT+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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