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Analog Devices Inc./Maxim Integrated MAX4657EUA+
- Part No.:
- MAX4657EUA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4657EUA+.pdf
- Description:
- IC SWITCH SPST-NCX1 10OHM 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:138
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Product details
Overview
MAX4657EUA+ from Maxim Integrated is a normally closed (NC), single-pole/single-throw (SPST), high-current CMOS analog switch in an 8-pin µMAX package. It delivers ≤10Ω on-resistance at ±15V supplies, supports ±150mA continuous/±300mA peak switching current, and operates from ±4.5V to ±20V dual supplies or +9V to +40V single supply - ideal for relay replacement in audio signal routing and redundant backup systems.
For engineers reviewing the MAX4657EUA+ datasheet, MAX4657EUA+ pinout, MAX4657EUA+ application, or MAX4657EUA+ equivalent, key selection criteria include its NC configuration, 150mA continuous current rating, rail-to-rail signal handling, low 1nA off-leakage at +25°C, and compatibility with DG417/DG418 footprints in space-constrained industrial and telecom designs.
Technical Context
The MAX4657EUA+ 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 conduction across the full ±20V supply range without parasitic diode turn-on or excessive supply current rise.
It features TTL/CMOS-compatible digital control (VIH = 2.4V, VIL = 0.8V), operates without a separate logic supply (VL not required), and maintains ≤1Ω RON flatness over its specified analog signal range - ensuring minimal distortion in bidirectional audio and test equipment signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | SPST, normally closed (NC) - conducts when IN = logic low; no external pull-up needed for default-on behavior. |
| On-Resistance (RON) | ≤10Ω max at ±15V supplies - enables low-loss switching of signals up to ±14.5V with <1% gain error in 25Ω–1kΩ loads. |
| Continuous Current | ±150mA - supports sustained load switching in xDSL line drivers and PBX interface circuits without thermal derating in µMAX package. |
| Peak Current | ±300mA (1ms, 10% duty cycle) - handles transient surges in relay-replacement applications without latch-up. |
| Off-Leakage Current | ≤1nA max at +25°C - preserves signal integrity in high-impedance sensor multiplexing and precision measurement front-ends. |
| Supply Range | ±4.5V to ±20V dual or +9V to +40V single - allows flexible biasing in mixed-signal systems with asymmetric rails. |
| Bandwidth | 210MHz - supports clean switching of audio, voiceband, and baseband signals up to 100kHz with <0.007% THD. |
Pinout & Package
MAX4657EUA+ uses the 8-pin µMAX package (3.0mm × 3.0mm, 0.8mm height) with exposed paddle (EP) for thermal enhancement. The EP must be connected to V+ for optimal power dissipation performance in high-current operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | COM | Analog switch common terminal - bidirectional path carrying full switched current; connects to load or signal source. |
| 2, 5 | N.C. | No internal connection - floating pins; must remain unconnected per datasheet to avoid parasitic coupling. |
| 3 | GND | Digital ground reference - provides return path for control logic and stabilizes internal bias networks. |
| 4 | V+ | Positive supply input - powers P-channel device and internal level-shifting circuitry; EP must tie here. |
| 6 | IN | Digital control input - TTL/CMOS-compatible; logic low (≤0.8V) closes switch (NC), logic high (≥2.4V) opens it. |
| 7 | V- | Negative supply input - powers N-channel device; sets lower rail for rail-to-rail analog signal swing. |
| 8 | NC | Normally closed analog terminal - conducts to COM when IN = low; open-circuit when IN = high. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+, enabling full dynamic range use in ±15V audio and telecom interfaces. |
| No VL supply required | Eliminates need for auxiliary logic supply - simplifies BOM and layout in isolated or multi-rail systems. |
| 1Ω max RON flatness | Ensures consistent gain and phase response across signal range - critical for low-distortion audio routing. |
| Pin compatibility with DG417 | Enables drop-in upgrade from legacy reed-relay replacements without PCB redesign in existing test equipment. |
| Exposed paddle thermal path | Improves thermal resistance by ~30% vs. standard µMAX - sustains 150mA continuous current at +70°C ambient. |
Applications
| Audio Signal Routing | Test Equipment |
|---|---|
Use Scenario: Switching microphone/line-level inputs between multiple codec channels in PC multimedia boards. IC Role / Device Role / Timing Role: NC SPST analog switch providing default-connected signal path with fast (<200ns) break-before-make isolation during reconfiguration. Use Value: Eliminates mechanical relay wear while maintaining <0.007% THD and 210MHz bandwidth for full-audio-band fidelity. | Use Scenario: Multiplexing DUT signals into automated test fixtures with programmable path selection. IC Role / Device Role / Timing Role: High-current analog switch routing ±10V calibration references and sensor outputs under microcontroller control. Use Value: 150mA continuous rating handles active probe loads; 1nA off-leakage prevents DC offset drift in precision measurement paths. |
| xDSL Modems | Redundant/Backup Systems |
Use Scenario: Selecting between primary and backup line drivers in ADSL/VDSL transceivers during fault recovery. IC Role / Device Role / Timing Role: NC-configured switch maintaining active line connection until failover command asserts IN high. Use Value: 300mA peak current withstands surge events during line reconnection; ±20V rating covers full DSL voltage envelope. | Use Scenario: Enabling hot-swappable power or data paths in telecom shelf controllers with automatic redundancy activation. IC Role / Device Role / Timing Role: Normally closed switch providing uninterrupted signal flow until monitored fault triggers open state. Use Value: Million-cycle lifetime replaces electromechanical relays; low 3mW quiescent power minimizes standby losses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4655EUA+ | Same µMAX package and pinout; rated for ±300mA continuous current (vs. ±150mA for MAX4657EUA+). | Higher current capability suits higher-power relay-replacement roles but requires greater PCB copper area and thermal management. | Select MAX4655EUA+ only if design demands >150mA continuous load current; otherwise MAX4657EUA+ offers better power density and lower cost. |
| DG417DY+ | SO-8 package; 35Ω typical RON; no exposed paddle; 30mA continuous rating. | Limited to low-current, low-frequency signal routing; lacks rail-to-rail capability and high-current robustness. | Use DG417DY+ only for cost-sensitive, non-demanding applications where 10Ω RON and 150mA current are unnecessary. |
Compared with MAX4655EUA+, MAX4657EUA+ trades 2× continuous current capacity for improved thermal efficiency and lower system-level power dissipation in compact µMAX layouts; versus DG417DY+, it delivers 3.5× lower on-resistance and 5× higher current handling with full rail-to-rail support.
Availability
MAX4657EUA+ is available at Aetrix Electronics and suitable for audio signal routing, test equipment, xDSL modems, and redundant/backup systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MAX4657EUA+ 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 applications.
The MAX4655–MAX4658 family was engineered specifically for high-current, low-RON analog switching in relay-replacement and signal-routing applications demanding speed, reliability, and wide supply flexibility.
FAQ
What is the maximum continuous current rating for MAX4657EUA+?
The MAX4657EUA+ supports ±150mA continuous current at the COM, NC, and IN terminals under specified thermal conditions (TA ≤ +70°C). This rating is validated per Absolute Maximum Ratings table and applies to both directions of current flow. Exceeding this limit risks thermal shutdown or permanent damage. Derating is required above +70°C ambient, with µMAX package thermal resistance dictating safe operating area.
Does MAX4657EUA+ require a separate logic supply voltage (VL)?
No, MAX4657EUA+ does not require a separate VL supply. Its digital control input (IN) is fully TTL/CMOS compatible across the entire operating temperature range, accepting VIH ≥ 2.4V and VIL ≤ 0.8V referenced to GND. This eliminates the need for level shifters or auxiliary supplies, simplifying system design and reducing component count in single-supply or dual-supply configurations.
Can MAX4657EUA+ operate with asymmetrical dual supplies?
Yes, MAX4657EUA+ supports asymmetrical dual-supply operation as long as the total V+ to V− differential remains within ±40V and each supply stays within its absolute maximum ratings (V+ to GND: −0.3V to +44V; V− to GND: −44V to +0.3V). For example, V+ = +12V and V− = −5V is valid. This flexibility enables optimized biasing in mixed-signal systems where analog and digital rails differ.
What is the on-resistance flatness specification for MAX4657EUA+ and why does it matter?
MAX4657EUA+ guarantees ≤1Ω maximum on-resistance flatness (RFLAT(ON)) over its specified analog signal range. This means the variation in RON across the full input voltage swing (e.g., −14.5V to +14.5V) is tightly controlled. Low flatness ensures consistent gain, minimal harmonic distortion (<0.007%), and predictable channel matching - essential for high-fidelity audio routing and precision instrumentation applications.
Is MAX4657EUA+ pin-compatible with industry-standard analog switches?
Yes, MAX4657EUA+ is pin-compatible with the DG417 and DG418 analog switches in the same 8-pin µMAX package footprint. This allows direct replacement in existing designs without PCB modification. However, designers must verify that the higher current capability (±150mA vs. DG417's ±30mA) and lower RON (≤10Ω vs. ~35Ω) do not introduce unintended loading or timing effects in legacy circuits.
MAX4657EUA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- 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):
- -
- 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
MAX4657EUA+ FAQ
1.How can I place an order for MAX4657EUA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4657EUA+ 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 MAX4657EUA+ reliable?
The price and inventory of MAX4657EUA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4657EUA+ is usually 5 days.
3.What payment methods are accepted for MAX4657EUA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4657EUA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4657EUA+?
MAX4657EUA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4657EUA+ 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 MAX4657EUA+?
For technical support, including MAX4657EUA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4657EUA+ requirements.
6.How does Aetrix verify that MAX4657EUA+ is sourced from the original manufacturer or authorized distributors?
All MAX4657EUA+ 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 MAX4657EUA+ meets industry standards.
7.What is the process for return or replacement of MAX4657EUA+?
All MAX4657EUA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4657EUA+, 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 MAX4657EUA+ part is unused and in its original packaging.
Return procedure for MAX4657EUA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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