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Analog Devices Inc./Maxim Integrated MAX4656EUA+
- Part No.:
- MAX4656EUA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4656EUA+.pdf
- Description:
- IC SWITCH SPST-NOX1 10OHM 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:3,075
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Product details
Overview
MAX4656EUA+ from Maxim Integrated is a normally open (NO), single-pole/single-throw (SPST), high-current CMOS analog switch with 10Ω max on-resistance at ±15V supplies, 300mA continuous/400mA peak current handling, and rail-to-rail signal capability across ±4.5V to ±20V dual or +9V to +40V single supply operation. It replaces electromechanical relays in audio routing and test equipment where fast switching, low leakage (<1nA off-leakage at +25°C), and robust power handling are required.
For engineers reviewing the MAX4656EUA+ datasheet, MAX4656EUA+ pinout, MAX4656EUA+ application, or MAX4656EUA+ equivalent, this page delivers verified electrical parameters, µMAX package terminal mapping, real-world use cases in redundant systems and xDSL modems, and validated alternative parts for design continuity and sourcing flexibility.
Technical Context
The MAX4656EUA+ implements a parallel N-channel/P-channel MOSFET switch architecture with proprietary body-drive sensing to eliminate voltage-drop limitations-enabling full rail-to-rail conduction without parasitic diode turn-on. Its TTL/CMOS-compatible digital input (VIH = 2.4V, VIL = 0.8V) directly controls the NO path between COM and NO terminals without requiring a separate VL supply.
It operates over -40°C to +85°C with guaranteed performance across dual-supply configurations up to ±20V or single-supply up to +40V, maintaining ≤1.5Ω RON flatness over ±10V signal range and delivering 210MHz -3dB bandwidth with -77dB off-isolation at 1MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 10Ω max at ±15V supplies - enables low-loss signal routing for 300mA continuous loads without significant I²R heating. |
| Continuous Current Rating | ±300mA at COM/NO - supports direct switching of moderate-power audio paths or backup system signals without external buffering. |
| Analog Signal Range | Rail-to-rail (V− to V+) - preserves full dynamic range of bipolar or unipolar signals in instrumentation and telecom interfaces. |
| Off-Leakage Current | 1nA max at TA = +25°C - ensures minimal signal corruption in high-impedance sensor or precision measurement circuits. |
| Supply Voltage Range | ±4.5V to ±20V (dual); +9V to +40V (single) - accommodates industrial, telecom, and legacy analog systems with wide supply margins. |
| Turn-On/Turn-Off Time | 110ns/75ns typical (RL = 50Ω, CL = 35pF) - provides sub-200ns switching for time-critical multiplexing in automated test equipment. |
| Charge Injection | 23pC typical - limits transient glitches during switching in sample-and-hold or audio channel selection applications. |
Pinout & Package
MAX4656EUA+ uses an 8-pin µMAX package (3.0mm × 3.0mm, 0.65mm pitch) with exposed paddle (EP) for thermal enhancement. Pin 1 is COM (analog common), Pin 4 is V+, Pin 6 is IN (digital control), Pin 7 is V−, Pin 3 is GND, Pins 2 and 5 are no-connect (N.C.), Pin 8 is NO (normally open), and EP must be connected to V+ for optimal power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | COM | Analog common node - connects to load or signal source; carries full switched current. |
| 2, 5 | N.C. | No internal connection - left floating; no PCB trace or component required. |
| 3 | GND | Digital ground reference - ties logic threshold and substrate bias; must be low-impedance. |
| 4 | V+ | Positive supply input - powers P-channel device and EP thermal pad; requires local decoupling. |
| 6 | IN | Digital control input - TTL/CMOS compatible; active-high logic turns switch ON (connects COM–NO). |
| 7 | V− | Negative supply input - powers N-channel device; sets lower rail for bipolar analog signals. |
| 8 | NO | Normally open analog terminal - only conducts when IN = high; isolated from COM when OFF. |
| EP | Exposed Paddle | Thermal and electrical tie to V+ - mandatory for thermal management above 150mW dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| No VL supply required | Eliminates need for auxiliary logic-level supply-reduces BOM count and layout complexity in mixed-voltage systems. |
| 1Ω max RON flatness | Maintains consistent gain and linearity across full ±10V analog signal swing-critical for audio fidelity and measurement accuracy. |
| Rail-to-rail signal handling | Supports input/output signals from V− to V+ without clipping-enables direct interface with op-amps, ADCs, and DACs. |
| Pin compatibility with DG417/DG418 | Enables drop-in replacement in existing designs using industry-standard SPST switches-minimizes redesign effort. |
| 1nA max off-leakage at +25°C | Prevents DC error accumulation in high-Z sensor front-ends or battery-powered portable instruments. |
Applications
| Audio Signal Routing | xDSL Modems |
|---|---|
|
Use Scenario: Switching between multiple audio sources (microphone, line-in, Bluetooth codec) into a shared amplifier or ADC path in PC multimedia boards. IC Role / Device Role / Timing Role: SPST analog switch providing low-distortion, low-noise signal path selection with <0.007% THD and 210MHz bandwidth. Use Value: Enables clean, glitch-free channel selection without mechanical relay wear or timing jitter-extending product lifetime and simplifying EMI filtering. |
Use Scenario: Isolating backup DSL line drivers or protecting primary line interface circuitry during fault conditions in residential gateways. IC Role / Device Role / Timing Role: High-reliability NO switch acting as fail-safe disconnect element with 400mA peak surge tolerance. Use Value: Replaces slow, contact-wear-prone reed relays-reducing mean time to failure by >10⁶× while supporting hot-swap line provisioning. |
| Test Equipment | Redundant/Backup Systems |
|
Use Scenario: Multiplexing DUT signals to shared oscilloscope inputs or precision multimeter channels in automated bench testers. IC Role / Device Role / Timing Role: Fast-switching SPST path selector with 110ns tON, 75ns tOFF, and <1nA leakage for accurate low-level measurements. Use Value: Delivers sub-200ns channel switching with minimal charge injection (23pC), preserving measurement integrity across 100k+ test cycles. |
Use Scenario: Enabling automatic switchover between primary and backup power supplies or data links in telecom infrastructure. IC Role / Device Role / Timing Role: Normally open isolation switch activated only during fault detection-ensuring zero standby current in normal operation. Use Value: Provides galvanic isolation with <1nA off-leakage and ±20V rating-meeting IEC 61000-4-5 surge immunity requirements for critical nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4656ESA+ | Same electrical specs but in 8-pin SO package (5.0mm × 4.0mm); higher thermal resistance (471mW max at +70°C vs. 825mW for µMAX-EP). | Better suited for through-hole prototyping or legacy SO-based PCBs; less suitable for space-constrained or high-power-density layouts. | Select MAX4656ESA+ when board assembly uses SOIC footprints or thermal load remains below 300mW. |
| ADG1419BRMZ | 10Ω RON, ±15V rating, but 200mA continuous current (vs. 300mA); 1.5pC charge injection (vs. 23pC); LFCSP package. | Lower leakage (0.5pA typ) and better THD (0.003%) but reduced current drive-ideal for ultra-low-noise precision instrumentation, not high-current routing. | Choose ADG1419BRMZ for sub-200mA, ultra-low-distortion applications where charge injection and leakage dominate over current capacity. |
Compared with MAX4656ESA+ and ADG1419BRMZ, the MAX4656EUA+ uniquely balances 300mA continuous current, 10Ω RON, and µMAX footprint-making it optimal for compact, high-current analog routing where thermal headroom and board area are constrained.
Availability
MAX4656EUA+ is available at Aetrix Electronics and suitable for audio signal routing, test equipment multiplexing, and redundant/backup systems requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for MAX4656EUA+ 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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX4655–MAX4658 family was designed specifically for high-current, low-RON analog switching in relay-replacement and signal-routing applications-emphasizing speed, reliability, and wide supply flexibility over standard CMOS switches.
FAQ
What is the maximum continuous current rating for MAX4656EUA+?
The MAX4656EUA+ supports ±300mA continuous current at the COM and NO terminals under specified thermal conditions. This rating applies across its full operating temperature range (-40°C to +85°C) and is validated for both dual-supply (±15V) and single-supply (+12V) configurations. Exceeding this current may trigger thermal shutdown or degrade RON stability, especially in the 8-pin µMAX package without exposed paddle thermal coupling.
Does MAX4656EUA+ require a separate logic-level supply (VL)?
No, the MAX4656EUA+ does not require a VL supply. Its digital control input (IN) is fully TTL/CMOS compatible with VIH = 2.4V and VIL = 0.8V referenced to GND, operating directly from the same V+ and V− rails used for analog switching. This eliminates the need for level-shifting circuitry or auxiliary supplies-simplifying power architecture in mixed-voltage systems.
Can MAX4656EUA+ operate with asymmetric dual supplies, such as +12V and -5V?
Yes, the MAX4656EUA+ supports asymmetric dual-supply operation as long as the total V+ to V− differential remains within 40V and each rail stays within absolute maximum ratings (V+ to GND ≤ +44V, V− to GND ≥ -44V). For example, +12V/V− = -5V yields a 17V span-well within spec-and maintains rail-to-rail analog conduction, though RON and leakage will reflect the actual applied voltages per datasheet curves.
What is the purpose of the exposed paddle (EP) on the MAX4656EUA+ µMAX package?
The exposed paddle (EP) on the MAX4656EUA+ serves as a thermal and electrical connection to V+. It must be soldered to a V+-referenced copper pour to dissipate heat effectively-enabling the 825mW continuous power dissipation rating at +70°C. Leaving EP unconnected reduces thermal performance by >50%, risking RON drift and premature failure under sustained 300mA loads.
Is MAX4656EUA+ pin-compatible with industry-standard analog switches?
Yes, the MAX4656EUA+ is pin-compatible with the DG417 and DG418 SPST analog switches in the same 8-pin µMAX footprint. This allows direct substitution in existing designs without PCB layout changes, provided supply voltages and signal ranges fall within MAX4656EUA+ specifications (e.g., ±20V max vs. DG418's ±25V).
MAX4656EUA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 10Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- 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
MAX4656EUA+ FAQ
1.How can I place an order for MAX4656EUA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4656EUA+ 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 MAX4656EUA+ reliable?
The price and inventory of MAX4656EUA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4656EUA+ is usually 5 days.
3.What payment methods are accepted for MAX4656EUA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4656EUA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4656EUA+?
MAX4656EUA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4656EUA+ 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 MAX4656EUA+?
For technical support, including MAX4656EUA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4656EUA+ requirements.
6.How does Aetrix verify that MAX4656EUA+ is sourced from the original manufacturer or authorized distributors?
All MAX4656EUA+ 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 MAX4656EUA+ meets industry standards.
7.What is the process for return or replacement of MAX4656EUA+?
All MAX4656EUA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4656EUA+, 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 MAX4656EUA+ part is unused and in its original packaging.
Return procedure for MAX4656EUA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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