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Analog Devices Inc./Maxim Integrated MAX4656ESA+
- Part No.:
- MAX4656ESA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4656ESA+.pdf
- Description:
- IC SWITCH SPST-NOX1 10OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:168
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Product details
Overview
MAX4656ESA+ from Maxim Integrated is a normally open (NO), single-pole/single-throw (SPST), high-current CMOS analog switch optimized for rail-to-rail signal routing in industrial and telecom systems. It delivers ≤10Ω on-resistance at ±15V supplies, supports 300mA continuous/400mA peak current, and operates from ±4.5V to ±20V dual supplies or +9V to +40V single supply - enabling robust relay replacement in xDSL modems and PBX systems.
For engineers reviewing the MAX4656ESA+ datasheet, MAX4656ESA+ pinout, MAX4656ESA+ application, or MAX4656ESA+ equivalent, key selection criteria include its NO configuration, 8-pin SO package with exposed paddle option, 1nA max off-leakage at +25°C, 210MHz -3dB bandwidth, and compatibility with DG417/DG418 layouts for drop-in upgrades in test equipment and audio routing designs.
Technical Context
The MAX4656ESA+ implements a parallel N-channel/P-channel MOSFET switch architecture with proprietary body-drive sensing to eliminate voltage-drop limitations typical of standard CMOS switches. This enables stable RON flatness (≤1Ω) across rail-to-rail analog signals while maintaining low charge injection (23pC) and high off-isolation (–77dB at 1MHz).
It supports asymmetrical dual-supply operation (e.g., V+ = +12V, V− = –5V) within a 40V total range and features TTL/CMOS-compatible digital control (VIH = 2.4V, VIL = 0.8V) without requiring a separate logic supply (VL not required). Power consumption remains constant at 3mW regardless of switch state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | ≤10Ω max at ±15V supplies - ensures minimal signal attenuation and power loss in high-current analog paths. |
| Continuous Current | ±300mA - supports direct switching of loads down to 25Ω without external buffering. |
| Peak Current | ±400mA (1ms, 10% duty cycle) - handles transient surges in relay-replacement applications. |
| Off-Leakage Current | ≤1nA at TA = +25°C - preserves signal integrity in high-impedance sensor or precision audio circuits. |
| -3dB Bandwidth | 210MHz - enables clean switching of video, RF, and broadband communication signals. |
| Supply Range | ±4.5V to ±20V (dual) or +9V to +40V (single) - provides wide dynamic range for industrial and telecom voltage rails. |
| Logic Compatibility | TTL/CMOS - eliminates level-shifter requirements in mixed-voltage systems. |
Pinout & Package
MAX4656ESA+ uses an 8-pin SO (Small Outline Integrated Circuit) package with standard SOIC-8 footprint (JEDEC MS-012), 150-mil width, and exposed paddle option for thermal enhancement in high-power operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 COM | Analog Switch Common | Signal path output terminal; connects to load or downstream circuitry. |
| 2, 5 N.C. | No Internal Connection | Unbonded pins; must be left floating or tied to GND per layout best practices. |
| 3 GND | Ground Reference | Primary return path for digital control and analog signal reference; critical for leakage and noise performance. |
| 4 V+ | Positive Supply Input | Supplies power to internal P-channel MOSFET and logic; connects to highest positive rail. |
| 6 IN | Digital Control Input | Active-high TTL/CMOS-compatible enable; logic high opens the switch (NO configuration). |
| 7 V− | Negative Supply Input | Supplies power to internal N-channel MOSFET; connects to most negative rail or GND in single-supply mode. |
| 8 NO | Analog Switch Normally Open | Input terminal disconnected from COM when IN = low; connects to COM when IN = high. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog inputs from V− to V+ without clipping - essential for full-scale audio and instrumentation signals. |
| RON flatness ≤1Ω | Maintains consistent gain and linearity across entire signal range - critical for THD-sensitive applications (0.007% typical). |
| No VL supply required | Eliminates need for auxiliary logic supply - simplifies BOM and PCB layout in space-constrained systems. |
| Pin-compatible with DG417/DG418 | Enables direct upgrade path in legacy designs without board rework or firmware changes. |
| Exposed paddle thermal option | Improves power dissipation capability up to 1509mW at +70°C - extends reliability in continuous 300mA operation. |
Applications
| Relay Replacement | Test Equipment |
|---|---|
Use Scenario: Replacing electromechanical relays in automated test fixtures where cycle life and speed are critical. IC Role / Device Role / Timing Role: SPST analog switch providing fast, solid-state signal path control between DUT and measurement instruments. Use Value: Delivers >1 million switching cycles versus relay wear-out, with 110ns typical turn-on time reducing test throughput time. | Use Scenario: Signal multiplexing in benchtop multimeters and oscilloscope front-ends requiring low distortion and high isolation. IC Role / Device Role / Timing Role: High-fidelity analog switch routing input channels while preserving signal integrity across DC–210MHz. Use Value: Achieves –77dB off-isolation at 1MHz and 0.007% THD, minimizing crosstalk and harmonic artifacts during precision measurements. |
| xDSL Modems | PBX / PABX Systems |
Use Scenario: Line interface protection and signal path selection in ADSL/VDSL transceivers operating over twisted-pair copper. IC Role / Device Role / Timing Role: High-voltage SPST switch isolating analog line drivers/receivers during fault conditions or mode changes. Use Value: Withstands ±20V dual supplies and handles 300mA continuous current - meets GR-909 surge immunity and line-card power requirements. | Use Scenario: Audio path switching in enterprise telephony systems managing multiple voice channels and conferencing bridges. IC Role / Device Role / Timing Role: Low-RON, low-leakage analog switch routing microphone, speaker, and codec signals in real-time voice processing. Use Value: 10Ω RON and 1nA off-leakage prevent insertion loss and DC offset drift - ensuring clear, low-noise voice transmission. |
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+ | Same electrical specs but in 8-pin µMAX package (3mm × 3mm); higher thermal resistance (10.3mW/°C derating vs. SO's 5.88mW/°C). | Better suited for compact portable devices where board area is constrained but power dissipation is lower. | Select MAX4656EUA+ only if PCB space savings outweigh thermal management complexity. |
| ADG1419BRMZ | Lower RON (0.9Ω typ), but rated only for ±15V and 170mA continuous; no exposed paddle; not pin-compatible. | Preferred in precision instrumentation where ultra-low on-resistance matters more than high-current capability. | Choose ADG1419BRMZ when signal fidelity dominates over current-handling - not for relay replacement. |
Compared with MAX4656EUA+, the MAX4656ESA+ offers superior thermal performance in high-current operation due to its larger SO package and optional exposed paddle; versus ADG1419BRMZ, it trades some RON for significantly higher current rating and broader supply flexibility - making it the only choice for demanding telecom and industrial switching where both voltage range and current capacity are non-negotiable.
Availability
MAX4656ESA+ is available at Aetrix Electronics and suitable for relay replacement, test equipment, and xDSL modem applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.
Supply support for MAX4656ESA+ 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 computing markets.
The MAX4655–MAX4658 family was engineered specifically for high-current, high-voltage analog switching - targeting applications where electromechanical relays fail due to speed, lifetime, or size constraints.
FAQ
What is the maximum continuous current rating for MAX4656ESA+?
The MAX4656ESA+ supports ±300mA continuous current through its COM and NO 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 thermal design - especially important when using the exposed paddle variant to dissipate up to 1509mW at +70°C.
Does MAX4656ESA+ require a separate logic supply voltage (VL)?
No, the MAX4656ESA+ does not require a separate VL supply. Its digital control input (IN) is fully TTL/CMOS compatible with VIH = 2.4V and VIL = 0.8V referenced to GND, and operates directly from the same V+ and V− rails powering the analog switch - simplifying system-level power architecture and reducing component count.
Is MAX4656ESA+ pin-compatible with industry-standard analog switches?
Yes, the MAX4656ESA+ is explicitly pin-compatible with the DG417 and DG418 analog switches. Pin-for-pin mapping allows direct substitution in existing designs without PCB modifications, retaining identical footprint, terminal functions, and control logic polarity - accelerating qualification and reducing redesign effort in legacy test and telecom equipment.
What is the on-resistance flatness specification for MAX4656ESA+ and why does it matter?
The MAX4656ESA+ guarantees ≤1Ω on-resistance flatness (RFLAT(ON)) over its full analog signal range. This means the variation in RON stays within 1Ω as the signal swings from V− to V+, ensuring consistent gain, minimal harmonic distortion (0.007% typical), and predictable channel matching - critical for high-fidelity audio routing and precision instrumentation where amplitude accuracy is essential.
Can MAX4656ESA+ operate from a single +12V supply?
Yes, the MAX4656ESA+ supports single-supply operation from +9V to +40V. When powered from +12V (with V− tied to GND), it maintains ≤33Ω on-resistance, 210MHz bandwidth, and rail-to-rail signal handling - enabling use in automotive infotainment, PC multimedia boards, and other +12V-centric systems without dual-rail generation.
MAX4656ESA+ 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-SOIC
MAX4656ESA+ FAQ
1.How can I place an order for MAX4656ESA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4656ESA+ 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 MAX4656ESA+ reliable?
The price and inventory of MAX4656ESA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4656ESA+ is usually 5 days.
3.What payment methods are accepted for MAX4656ESA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4656ESA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4656ESA+?
MAX4656ESA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4656ESA+ 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 MAX4656ESA+?
For technical support, including MAX4656ESA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4656ESA+ requirements.
6.How does Aetrix verify that MAX4656ESA+ is sourced from the original manufacturer or authorized distributors?
All MAX4656ESA+ 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 MAX4656ESA+ meets industry standards.
7.What is the process for return or replacement of MAX4656ESA+?
All MAX4656ESA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4656ESA+, 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 MAX4656ESA+ part is unused and in its original packaging.
Return procedure for MAX4656ESA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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