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Analog Devices Inc./Maxim Integrated MAX4655EUA+T
- Part No.:
- MAX4655EUA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4655EUA+T.pdf
- Description:
- IC SWITCH SPST-NCX1 10OHM 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,220
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Product details
Overview
MAX4655EUA+T from Maxim Integrated is a normally closed (NC), single-pole/single-throw (SPST), high-current CMOS analog switch with 10Ω max on-resistance at ±15V supplies, 300mA continuous current handling, and rail-to-rail signal capability across ±4.5V to ±20V dual supplies or +9V to +40V single supply. It replaces electromechanical relays in audio routing and redundant backup systems where speed, cycle life, and low power (3mW) are critical.
For engineers reviewing the MAX4655EUA+T datasheet, MAX4655EUA+T pinout, MAX4655EUA+T application, or MAX4655EUA+T equivalent, key selection criteria include confirmed NC configuration, 300mA continuous/400mA peak current rating, 1nA max off-leakage at +25°C, 210MHz -3dB bandwidth, and µMAX-8 package compatibility with DG417/DG418 footprints.
Technical Context
The MAX4655EUA+T implements a parallel N-channel/P-channel MOSFET switch architecture with proprietary body-drive sensing to eliminate the ~600mV voltage-drop limitation of standard CMOS switches, enabling full rail-to-rail conduction without increased leakage or supply current. Its logic input is TTL/CMOS compatible with VIH = 2.4V and VIL = 0.8V over temperature.
It supports asymmetrical dual-supply operation (e.g., +12V/–5V) within a 40V total V+–V− range and delivers 1Ω max RON flatness over its specified analog signal range, ensuring minimal distortion for precision audio and test equipment signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Normally closed (NC) SPST analog switch - conducts when control input is logic low. |
| On-Resistance (RON) | 10Ω max at ±15V supplies - enables low-loss switching of signals up to ±14.5V with minimal voltage drop. |
| Continuous Current | 300mA - supports high-power audio loads and relay-replacement applications without external buffering. |
| Off-Leakage Current | 1nA max at +25°C - ensures signal integrity in high-impedance sensor or precision measurement paths. |
| -3dB Bandwidth | 210MHz - preserves fidelity of fast-switching video, communication, or xDSL modem signals. |
| Supply Range | ±4.5V to ±20V (dual) or +9V to +40V (single) - accommodates industrial, telecom, and audio rails without level-shifting. |
| Turn-On/Off Time | 110ns/75ns typical - provides sub-200ns switching for time-critical redundancy and test automation. |
Pinout & Package
MAX4655EUA+T is housed in an 8-pin µMAX package (3.0mm × 3.0mm, 0.8mm height) with exposed paddle (EP) for thermal enhancement. The package is RoHS-compliant and rated for –40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | COM | Analog common terminal - connects to load; bidirectional conduction path in NC state. |
| 2, 5 | N.C. | No internal connection - must be left unconnected; no electrical function or thermal tie. |
| 3 | GND | Digital ground reference - required for logic interface stability and noise immunity. |
| 4 | V+ | Positive supply input - powers internal circuitry and P-channel switch element; EP must connect to V+. |
| 6 | IN | Digital control input - TTL/CMOS-compatible; logic low enables conduction (NC behavior). |
| 7 | V- | Negative supply input - powers N-channel switch element; establishes lower analog rail. |
| 8 | NC | Normally closed analog terminal - connected to COM when IN = low; open when IN = high. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports input/output signals from V− to V+, eliminating clipping in ±15V audio or industrial control interfaces. |
| 1Ω max RON flatness | Ensures consistent gain and THD < 0.007% across full signal swing - critical for high-fidelity audio routing. |
| No VL bias requirement | Eliminates need for separate logic-level supply; simplifies PCB layout and reduces BOM count. |
| Pin compatibility with DG417/DG418 | Enables drop-in replacement in legacy designs without footprint or schematic changes. |
| Exposed paddle thermal path | Enables 825mW continuous power dissipation at +70°C ambient - sustains 300mA loads under sustained duty cycles. |
Applications
| Audio Signal Routing | Redundant/Backup Systems |
|---|---|
Use Scenario: Switching line-level stereo signals between primary and secondary amplifiers in PC multimedia boards or professional audio mixers. IC Role / Device Role / Timing Role: NC SPST analog switch providing fail-safe signal path continuity during control loss or fault detection. Use Value: 300mA current capacity handles 600Ω source loads without distortion; 210MHz bandwidth preserves transient response. | Use Scenario: Automatic switchover between active and standby power supplies or data paths in telecom infrastructure or industrial PLCs. IC Role / Device Role / Timing Role: High-reliability solid-state relay replacement with >1M cycle lifetime and microsecond switching. Use Value: 1nA off-leakage prevents false triggering; ±20V dual-supply operation matches telecom DC rails. |
| Test Equipment | xDSL Modems |
Use Scenario: Multiplexing DUT signals into automated test instruments requiring low crosstalk and fast settling. IC Role / Device Role / Timing Role: Precision analog switch in signal path matrix with minimal RON variation and charge injection (<23pC). Use Value: 10Ω RON and 1Ω flatness ensure accurate voltage/current measurements across full dynamic range. | Use Scenario: Channel selection and line driver isolation in ADSL/VDSL front-end circuits operating up to 30MHz. IC Role / Device Role / Timing Role: High-bandwidth analog switch managing differential pair routing and impedance matching. Use Value: –77dB off-isolation at 1MHz and 210MHz bandwidth maintain SNR in multi-channel DSL transceivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4656EUA+T | Normally open (NO) configuration; identical RON, current ratings, and package. | Requires inverted logic control; unsuitable where default-conduction (fail-safe) is mandatory. | Select MAX4656EUA+T only when system requires open-circuit default state. |
| DG417DY-T1-E3 | 12Ω max RON; 175mA continuous current; SO-8 package; no exposed paddle. | Lower power handling limits use in high-current audio or relay-replacement roles. | Choose DG417DY-T1-E3 for cost-sensitive, lower-current applications where µMAX footprint is not required. |
Compared with MAX4656EUA+T (NO variant) and DG417DY-T1-E3 (SO-8, lower current), MAX4655EUA+T uniquely combines NC default state, 300mA continuous rating, and µMAX thermal performance-making it optimal for fail-safe, high-power analog routing where board space and thermal management are constrained.
Availability
MAX4655EUA+T is available at Aetrix Electronics and suitable for audio signal routing, redundant/backup systems, and test equipment requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for MAX4655EUA+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 MAX4655–MAX4658 family was engineered specifically for high-current, low-RON analog switching in relay-replacement and high-fidelity signal-path applications demanding speed, reliability, and wide supply flexibility.
FAQ
What is the default switch state of the MAX4655EUA+T?
The MAX4655EUA+T is a normally closed (NC) analog switch: it conducts between pins 1 (COM) and 8 (NC) when the digital control input (pin 6) is logic low (≤0.8V). When pin 6 is logic high (≥2.4V), the switch opens. This fail-safe behavior makes MAX4655EUA+T ideal for applications requiring default signal continuity, such as redundant power or audio paths.
Does the MAX4655EUA+T require a separate logic-level supply (VL)?
No, the MAX4655EUA+T does not require a VL supply. Its digital input (pin 6) is fully TTL/CMOS compatible across its entire operating temperature range (–40°C to +85°C), accepting logic-high thresholds of 2.4V minimum and logic-low thresholds of 0.8V maximum referenced to GND (pin 3). This eliminates the need for level shifters or auxiliary supplies in mixed-voltage systems.
Can the MAX4655EUA+T operate from a single +12V supply?
Yes, the MAX4655EUA+T supports single-supply operation from +9V to +40V. With V+ = +12V and V− tied to GND, it delivers 10Ω max on-resistance, 300mA continuous current, and rail-to-rail analog switching from 0V to +12V. The device maintains 1nA max off-leakage and 210MHz bandwidth under these conditions, making MAX4655EUA+T suitable for +12V automotive infotainment or industrial control modules.
What is the thermal design requirement for the exposed paddle (EP) on the MAX4655EUA+T?
The exposed paddle (EP) on the MAX4655EUA+T must be soldered to a V+ copper pour on the PCB to achieve rated thermal performance. Per Maxim's datasheet, EP is internally connected to V+ and serves as the primary thermal path. Failure to connect EP to V+ reduces continuous power dissipation from 825mW to ≤362mW at +70°C ambient, risking thermal shutdown or RON drift during 300mA operation.
Is the MAX4655EUA+T pin-compatible with the DG417 analog switch?
Yes, the MAX4655EUA+T is pin-compatible with the DG417 in the 8-pin µMAX package. Pin assignments for COM (1), GND (3), V+ (4), IN (6), V− (7), and NC (8) match identically. This allows direct replacement in existing DG417-based designs while delivering improved specs: lower RON (10Ω vs. 12Ω), higher current (300mA vs. 175mA), and enhanced thermal performance via the exposed paddle.
MAX4655EUA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 10Ohm
- Channel-to-Channel Matching (ΔRon):
- 300mOhm
- Voltage - Supply, Single (V+):
- 9V ~ 40V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 200ns, 100ns
- -3db Bandwidth:
- 210MHz
- Charge Injection:
- 23pC
- Channel Capacitance (CS(off), CD(off)):
- 25pF, 25pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
MAX4655EUA+T FAQ
1.How can I place an order for MAX4655EUA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4655EUA+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 MAX4655EUA+T reliable?
The price and inventory of MAX4655EUA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4655EUA+T is usually 5 days.
3.What payment methods are accepted for MAX4655EUA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4655EUA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4655EUA+T?
MAX4655EUA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4655EUA+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 MAX4655EUA+T?
For technical support, including MAX4655EUA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4655EUA+T requirements.
6.How does Aetrix verify that MAX4655EUA+T is sourced from the original manufacturer or authorized distributors?
All MAX4655EUA+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 MAX4655EUA+T meets industry standards.
7.What is the process for return or replacement of MAX4655EUA+T?
All MAX4655EUA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4655EUA+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 MAX4655EUA+T part is unused and in its original packaging.
Return procedure for MAX4655EUA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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