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Analog Devices Inc./Maxim Integrated MAX4657ESA+
- Part No.:
- MAX4657ESA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4657ESA+.pdf
- Description:
- IC SWITCH SPST-NCX1 10OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:254
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Product details
Overview
MAX4657ESA+ from Maxim Integrated is a normally closed (NC), single-pole/single-throw (SPST), high-current CMOS analog switch rated for ±4.5V to ±20V dual-supply or +9V to +40V single-supply operation, with 10Ω max on-resistance at ±15V, 150mA continuous current handling, and rail-to-rail signal switching - used in audio routing, relay replacement, and redundant backup systems.
For engineers reviewing the MAX4657ESA+ datasheet, MAX4657ESA+ pinout, MAX4657ESA+ application, or MAX4657ESA+ equivalent, this page delivers verified electrical specs, SO-8 package terminal mapping, real-world use cases in communication and test equipment, and two validated alternative parts with documented functional and thermal differences.
Technical Context
The MAX4657ESA+ implements a parallel N-channel/P-channel MOSFET switch architecture with proprietary body-drive sensing to eliminate voltage-drop limitations across the channel, enabling stable 150mA continuous conduction without parasitic diode turn-on. Its TTL/CMOS-compatible digital input controls NC state directly without level-shifting.
It supports asymmetrical dual supplies (e.g., V+ = +12V, V− = −5V) within a 40V total V+–V− range, handles rail-to-rail analog signals from V− to V+, and maintains ≤1nA off-leakage at +25°C while delivering 210MHz −3dB bandwidth and −77dB off-isolation at 1MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | 10Ω max at ±15V supplies - ensures minimal signal attenuation and power loss in high-fidelity audio or precision sensor paths. |
| Continuous Current | ±150mA - supports robust load switching in PBX line cards and xDSL modem front-ends without derating. |
| Analog Signal Range | V− to V+ - enables true rail-to-rail operation across full supply range, critical for unipolar and bipolar signal routing. |
| Off-Leakage Current | 1nA max at TA = +25°C - preserves signal integrity in high-impedance sensor interfaces and low-power standby modes. |
| Turn-On/Off Time | 140ns/65ns typical (RL = 200Ω, CL = 35pF) - meets timing requirements for fast-switching test instrumentation and multiplexed data acquisition. |
| Supply Voltage Range | ±4.5V to ±20V dual or +9V to +40V single - accommodates industrial control rails and telecom power architectures. |
| Charge Injection | 1pC typical - minimizes voltage glitch during switching in sample-and-hold and ADC front-end applications. |
Pinout & Package
MAX4657ESA+ is housed in an 8-pin SO (Small Outline) package per JEDEC MS-012, with exposed paddle not present (non-EP variant). Pin 1 is COM (analog common), Pin 3 is GND, Pin 4 is V+, Pin 6 is IN (TTL/CMOS logic input), Pin 7 is V−, and Pin 8 is NC (normally closed analog terminal); Pins 2 and 5 are no-connect.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | COM | Analog common node - connects to load or signal path; bidirectional conduction when NC switch is closed. |
| 2, 5 | N.C. | No internal connection - must remain unconnected; floating pins do not affect performance or reliability. |
| 3 | GND | Reference ground for logic interface and internal biasing - requires low-impedance PCB connection to minimize noise coupling. |
| 4 | V+ | Positive supply input - accepts up to +40V in single-supply mode or +20V in dual-supply configuration. |
| 6 | IN | Digital control input - active-low logic sense (logic 0 closes NC path); compatible with 3.3V/5V microcontrollers without level shifters. |
| 7 | V− | Negative supply input - accepts down to −20V in dual-supply mode; must be connected even in single-supply use if referenced to system ground. |
| 8 | NC | Normally closed analog terminal - forms closed path to COM when IN = 0; open when IN = 1 - replaces mechanical relays in fail-safe circuits. |
Key Features
| Feature | Design Value |
|---|---|
| RON flatness | 1Ω max over full signal range - ensures consistent gain and THD performance across audio and video signal amplitudes. |
| Rail-to-rail switching | V− to V+ analog range - eliminates clipping in ±12V op-amp stages and 24V industrial I/O modules. |
| No VL supply required | Direct TTL/CMOS compatibility - simplifies board design by removing auxiliary logic supply and associated filtering. |
| High peak current | 300mA pulsed (1ms, 10% duty) - sustains surge loads during hot-swap events in redundant power distribution units. |
| Low power consumption | 3mW typical (on or off) - enables always-on functionality in battery-backed telecom infrastructure without thermal penalty. |
Applications
| Audio Signal Routing | Relay Replacement |
|---|---|
Use Scenario: Switching line-level stereo signals between multiple DAC outputs and amplifier inputs in PC multimedia boards. IC Role / Device Role / Timing Role: SPST NC analog switch providing fail-safe default path (audio passes through when power fails or control signal is absent). Use Value: 10Ω RON and 0.007% THD preserve audio fidelity; 210MHz bandwidth avoids phase distortion in wideband content. |
Use Scenario: Replacing electromechanical relays in PBX and PABX telephone line interface cards requiring >1M cycle life. IC Role / Device Role / Timing Role: High-current NC switch handling 150mA loop current while maintaining <1nA leakage to prevent false ring detection. Use Value: Solid-state reliability eliminates contact wear and bounce; 140ns tON enables rapid call setup and teardown. |
| Test Equipment Multiplexing | xDSL Modem Front-End |
Use Scenario: Channel selection in automated test equipment where DUT signals must be routed to measurement instruments under software control. IC Role / Device Role / Timing Role: Bidirectional SPST switch isolating 50Ω RF paths with −77dB off-isolation at 1MHz to prevent crosstalk between channels. Use Value: 25pF COFF and 67pF CON minimize impedance mismatch; 1pC charge injection prevents settling errors in precision DC measurements. |
Use Scenario: Selecting between ADSL and VDSL line drivers in multi-standard broadband modems based on line condition negotiation. IC Role / Device Role / Timing Role: NC switch routing differential analog signals (up to ±12V) between transceiver and hybrid circuit with rail-to-rail capability. Use Value: ±20V dual-supply support matches DSL line driver voltage swing; 150mA rating handles peak line current surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4655ESA+ | Same SO-8 package and pinout; rated for 300mA continuous current and higher power dissipation (471mW vs. 471mW at +70°C), but shares identical NC function and 10Ω RON. | Preferred where higher load current (e.g., 25Ω loads at ±15V) or elevated ambient temperature (>+70°C) demands greater thermal margin. | Select MAX4655ESA+ only if continuous current exceeds 150mA; otherwise MAX4657ESA+ offers better thermal efficiency at lower load levels. |
| ADG1419BRMZ | Pin-compatible SPST NC switch in 8-lead MSOP; 0.7Ω RON max but limited to ±15V supplies and 125mA continuous current; 1.5pC charge injection. | Suitable for low-voltage, low-distortion audio paths where ultra-low RON matters more than wide supply range or high current. | Choose ADG1419BRMZ for <±15V systems prioritizing RON flatness and THD; avoid in ±20V or >150mA applications where MAX4657ESA+ is uniquely qualified. |
Compared with MAX4655ESA+, MAX4657ESA+ reduces thermal stress at 150mA loads while retaining NC functionality and SO-8 compatibility; versus ADG1419BRMZ, it trades 0.7Ω RON for ±20V operation and 150mA rating - making it the only option for high-voltage telecom and industrial analog routing.
Availability
MAX4657ESA+ is available at Aetrix Electronics and suitable for audio signal routing, relay replacement, and xDSL modem front-end designs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for production programs.
Supply support for MAX4657ESA+ 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 semiconductor solutions for industrial, communications, and computing markets.
The MAX4655–MAX4658 family was engineered specifically for high-current, high-voltage analog switching in telecom infrastructure and test equipment - emphasizing NC/NO variants, rail-to-rail operation, and million-cycle solid-state reliability over mechanical relays.
FAQ
What is the maximum continuous current rating for MAX4657ESA+?
The MAX4657ESA+ is rated for ±150mA continuous current at the COM and NC terminals under specified thermal conditions. This rating applies across the full operating temperature range (−40°C to +85°C) and is validated per Absolute Maximum Ratings and Electrical Characteristics tables in the official datasheet. Exceeding this value risks thermal shutdown or long-term reliability degradation.
Does MAX4657ESA+ require a separate logic supply (VL)?
No, MAX4657ESA+ does not require a VL supply. Its digital input (Pin 6) is fully TTL/CMOS compatible, accepting 0.8V logic low and 2.4V logic high thresholds directly from standard 3.3V or 5V microcontrollers. This eliminates the need for external level-shifting circuitry and simplifies system-level power architecture.
Can MAX4657ESA+ operate with asymmetric dual supplies?
Yes, MAX4657ESA+ supports asymmetric dual supplies as long as the total V+ to V− difference remains within 40V and each supply stays within its absolute maximum ratings (V+ ≤ +44V, V− ≥ −44V). For example, V+ = +12V and V− = −5V is valid and maintains full rail-to-rail analog signal handling from −5V to +12V.
What is the on-resistance flatness specification for MAX4657ESA+?
MAX4657ESA+ guarantees ≤1Ω on-resistance flatness (RFLAT(ON)) over its specified analog signal range when tested at ±15V supplies. This means the difference between maximum and minimum RON values measured across the full VCOM range remains ≤1Ω - ensuring minimal harmonic distortion and amplitude variation in audio and instrumentation applications.
Is MAX4657ESA+ pin-compatible with industry-standard analog switches?
Yes, MAX4657ESA+ is pin-compatible with DG417 and DG418 analog switches in the same SO-8 footprint. Pin assignments for COM, V+, IN, V−, GND, and NC match directly, enabling drop-in replacement in legacy designs - provided supply voltage, current, and signal range requirements align with MAX4657ESA+ specifications.
MAX4657ESA+ 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-SOIC
MAX4657ESA+ FAQ
1.How can I place an order for MAX4657ESA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4657ESA+ 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 MAX4657ESA+ reliable?
The price and inventory of MAX4657ESA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4657ESA+ is usually 5 days.
3.What payment methods are accepted for MAX4657ESA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4657ESA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4657ESA+?
MAX4657ESA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4657ESA+ 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 MAX4657ESA+?
For technical support, including MAX4657ESA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4657ESA+ requirements.
6.How does Aetrix verify that MAX4657ESA+ is sourced from the original manufacturer or authorized distributors?
All MAX4657ESA+ 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 MAX4657ESA+ meets industry standards.
7.What is the process for return or replacement of MAX4657ESA+?
All MAX4657ESA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4657ESA+, 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 MAX4657ESA+ part is unused and in its original packaging.
Return procedure for MAX4657ESA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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