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Analog Devices Inc./Maxim Integrated MAX4659EUA
- Part No.:
- MAX4659EUA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4659EUA.pdf
- Description:
- IC SWITCH SPDT X 1 25OHM 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:3,543
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Product details
Overview
MAX4659EUA from Maxim Integrated is a single-pole/double-throw (SPDT) CMOS analog switch with 25Ω max on-resistance at ±15V, 75mA continuous current handling, and rail-to-rail signal capability across ±4.5V to ±20V dual supplies or +9V to +40V single supply - used in high-reliability audio routing and relay replacement circuits.
For engineers reviewing the MAX4659EUA datasheet, MAX4659EUA pinout, MAX4659EUA application, or MAX4659EUA equivalent, this page delivers verified electrical specs, thermal derating data, SPDT switching behavior under load, and real-world leakage/flatness performance at temperature extremes - all specific to the 8-pin µMAX package.
Technical Context
The MAX4659EUA implements an N-channel/P-channel MOSFET parallel switch architecture with body-node sensing to eliminate conventional 600mV voltage-drop limitations, enabling full rail-to-rail conduction without increased leakage or supply current penalty. Its break-before-make timing is 5ns typical (dual-supply) and 10ns typical (single-supply), ensuring clean channel isolation during state transitions.
It supports asymmetrical supply operation (e.g., V+ = +12V, V− = −5V) within a 40V total range, and features 1nA max off-leakage at +25°C, 25pF COM on-capacitance, and −70dB off-isolation at 1MHz - critical for precision signal routing in test equipment and xDSL line cards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | 25Ω max at ±15V - ensures minimal insertion loss in 50Ω–600Ω audio and telecom signal paths |
| Continuous Current | ±75mA - supports sustained switching of moderate-power analog loads without thermal shutdown |
| RON Flatness | 1.5Ω max at ±15V - maintains consistent gain/attenuation across full analog input range (V− to V+) |
| Off-Leakage Current | 1nA max at +25°C - preserves DC accuracy in high-impedance sensor or bias networks |
| Supply Range | ±4.5V to ±20V dual or +9V to +40V single - enables direct interface with industrial ±15V rails or automotive +12V systems |
| Transition Time | 150ns typical - meets timing requirements for multiplexed audio sampling and fast test signal routing |
| Charge Injection | 1.5pC - limits voltage glitch on high-impedance nodes during switching, critical for precision DAC output buffering |
Pinout & Package
MAX4659EUA is housed in an 8-pin µMAX package (U8-1) with exposed paddle (EP) electrically isolated and recommended to be connected to V+ for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - COM | Analog common terminal | Switch output node; connects to either NC or NO based on IN logic state |
| 2 - NC | Normally closed analog terminal | Connected to COM when IN = low; breaks before NO makes during transition |
| 3 - GND | Digital ground reference | Reference for logic input; must be tied to system ground, not floating |
| 4 - V+ | Positive supply voltage | Accepts +9V to +40V (single) or up to +20V (dual); EP pad should connect here |
| 5 - N.C. | No connection | Internally unconnected; must remain unconnected on PCB |
| 6 - IN | Digital control input | TTL/CMOS compatible (VIH ≥ 2.4V, VIL ≤ 0.8V); active-high selects NO path |
| 7 - V− | Negative supply voltage | Accepts −4.5V to −20V (dual); may be grounded for single-supply +9V to +40V operation |
| 8 - NO | Normally open analog terminal | Connects to COM when IN = high; complements NC for SPDT function |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports signals from V− to V+ without clipping - essential for ±12V op-amp interfacing and full-scale audio swing |
| High-current capability | 75mA continuous / 150mA peak - replaces electromechanical relays in redundant power-path and backup system switching |
| No VL supply required | Eliminates need for separate logic-level supply - simplifies BOM and layout in mixed-voltage systems |
| Low charge injection (1.5pC) | Minimizes transient voltage spikes on sensitive nodes like ADC inputs or filter capacitors |
| Pin compatibility with DG419/MAX319 | Enables drop-in upgrade path for legacy designs requiring higher current and lower RON |
Applications
| Audio Signal Routing | Test Equipment Multiplexing |
|---|---|
Use Scenario: Switching line-level stereo signals between multiple amplifiers or codecs in PC multimedia boards. IC Role / Device Role / Timing Role: SPDT analog switch selecting between two audio sources while maintaining DC-coupled integrity and low THD. Use Value: 0.005% THD and 25Ω RON preserve signal fidelity; 150ns transition time avoids audible clicks during source changes. |
Use Scenario: Routing calibrated reference voltages or DUT outputs across multiple measurement channels in automated test fixtures. IC Role / Device Role / Timing Role: Precision analog switch providing low-leakage, low-RON path selection with guaranteed 1nA off-state current. Use Value: 1nA max off-leakage prevents reference drift; ±75mA drive supports sourcing into 50Ω scope inputs or DMM front-ends. |
| xDSL Modem Line Interface | Redundant Power Path Control |
Use Scenario: Selecting between primary and backup DSL line drivers or filters in POTS splitter modules. IC Role / Device Role / Timing Role: High-voltage SPDT switch handling ±15V AC line signals with robust ESD tolerance and rail-to-rail swing. Use Value: ±20V dual-supply rating matches xDSL line driver rails; −70dB off-isolation at 1MHz suppresses crosstalk between upstream/downstream paths. |
Use Scenario: Enabling automatic failover between primary and backup 12V power rails in telecom shelf controllers. IC Role / Device Role / Timing Role: Solid-state replacement for reed relays, delivering million-cycle reliability and sub-10ns break-before-make timing. Use Value: 75mA continuous current sustains hold-in current for downstream LDOs; no mechanical wear or contact bounce improves system MTBF. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4660EUA | 150mA continuous current, thermally enhanced µMAX-EP package (U8E-2), same pinout | Better suited for higher-current loads (e.g., driving 100Ω line drivers) and elevated ambient temperatures | Select MAX4660EUA when >75mA continuous current or improved thermal resistance (<100°C/W vs. 125°C/W) is required |
| DG419DY | 35Ω max RON, 30mA continuous current, SO-8 package, no exposed paddle | Limited to low-power signal routing; lacks rail-to-rail capability beyond ±13.5V | Choose DG419DY only for cost-sensitive, low-current legacy upgrades where 25Ω RON and 75mA drive are not needed |
Compared with MAX4659EUA, MAX4660EUA offers higher current capacity and better thermal performance in identical footprint, while DG419DY provides basic SPDT functionality at lower cost but with significantly degraded RON, current, and voltage-range specifications.
Availability
MAX4659EUA is available at Aetrix Electronics and suitable for audio signal routing, test equipment multiplexing, and xDSL modem line interface applications requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for MAX4659EUA 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 high-reliability ICs for industrial, communications, and computing markets.
The MAX4659EUA belongs to Maxim's high-current analog switch product line, engineered specifically for relay replacement and robust signal routing in harsh-voltage environments with strict leakage and flatness requirements.
FAQ
What is the maximum continuous current rating for MAX4659EUA?
The MAX4659EUA supports ±75mA continuous current through its COM, NO, and NC terminals under specified thermal conditions. This rating applies across the full operating temperature range (−40°C to +85°C) and is validated with proper PCB copper area and thermal vias for the µMAX package. Exceeding this current risks exceeding the 362mW power dissipation limit at +70°C ambient.
Can MAX4659EUA operate from a single +12V supply?
Yes, MAX4659EUA operates from a single +12V supply (V+ = +12V, V− = GND). In this configuration, the analog signal range extends from 0V to +12V, on-resistance rises to 60Ω max, and transition time increases to 250ns max. The device retains TTL/CMOS-compatible logic thresholds and requires no additional level-shifting circuitry.
Is the exposed paddle on MAX4659EUA electrically connected?
No, the exposed paddle (EP) on MAX4659EUA is not internally connected to any die node. It is recommended to solder it to V+ for optimal thermal performance, though leaving it unconnected does not impair electrical function. Doing so improves thermal resistance by ~30% compared to floating the paddle, directly supporting the 75mA continuous current rating.
How does MAX4659EUA achieve rail-to-rail signal handling?
MAX4659EUA achieves rail-to-rail signal handling via a parallel N-channel/P-channel MOSFET switch structure with dynamic body-node control. Unlike standard CMOS switches limited to ~600mV drop, this architecture eliminates parasitic diode conduction, allowing analog signals from V− to V+ without distortion or increased leakage - confirmed by 25Ω RON flatness over full voltage range.
What is the off-isolation performance of MAX4659EUA at 1MHz?
At 1MHz, MAX4659EUA delivers −70dB off-isolation (VCOM/VNO or VNC) under 50Ω test conditions. This value is measured with V+ = +15V, V− = −15V, and reflects effective signal blocking between disconnected channels. Off-isolation degrades above 5MHz due to channel capacitance, making careful PCB layout essential for RF-sensitive applications.
MAX4659EUA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 25Ohm
- Channel-to-Channel Matching (ΔRon):
- 400mOhm
- Voltage - Supply, Single (V+):
- 9V ~ 40V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- 225MHz
- Charge Injection:
- 1.5pC
- Channel Capacitance (CS(off), CD(off)):
- 6pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -76dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
MAX4659EUA FAQ
1.How can I place an order for MAX4659EUA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4659EUA 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 MAX4659EUA reliable?
The price and inventory of MAX4659EUA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4659EUA is usually 5 days.
3.What payment methods are accepted for MAX4659EUA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4659EUA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4659EUA?
MAX4659EUA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4659EUA 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 MAX4659EUA?
For technical support, including MAX4659EUA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4659EUA requirements.
6.How does Aetrix verify that MAX4659EUA is sourced from the original manufacturer or authorized distributors?
All MAX4659EUA 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 MAX4659EUA meets industry standards.
7.What is the process for return or replacement of MAX4659EUA?
All MAX4659EUA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4659EUA, 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 MAX4659EUA part is unused and in its original packaging.
Return procedure for MAX4659EUA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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