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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:1,072
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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 optimized for rail-to-rail signal routing in industrial and telecom systems. It delivers 10Ω max on-resistance at ±15V supplies, supports ±150mA continuous current and ±300mA peak current, and operates from +9V to +40V single supply or ±4.5V to ±20V dual supply - enabling robust relay replacement in audio routing and redundant power-path switching.
For engineers reviewing the MAX4657EUA datasheet, MAX4657EUA pinout, MAX4657EUA application, or MAX4657EUA equivalent, this device is selected for high-current analog switching where low RON flatness (1Ω max), sub-1nA off-leakage at +25°C, and 210MHz -3dB bandwidth must be balanced against NC logic polarity and µMAX package thermal limits.
Technical Context
The MAX4657EUA implements a parallel N-channel/P-channel MOSFET switch architecture with proprietary body-drive sensing, eliminating the ~600mV voltage-drop limitation of conventional analog switches and enabling full rail-to-rail conduction without parasitic diode turn-on. Its control logic accepts TTL/CMOS-compatible inputs and requires no VL bias rail.
Dual-supply operation allows asymmetric configurations (e.g., V+ = +24V, V− = −5V) within a 40V total V+–V− range, while its 1nA max off-leakage and 67pF COM on-capacitance support precision signal integrity in audio and test equipment applications up to 10MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | SPST, normally closed (NC) - conducts when IN = logic low |
| On-Resistance (RON) | 10Ω max at ±15V supplies - ensures <150mV drop at 15mA load |
| Continuous Current Rating | ±150mA - defines maximum steady-state load for thermal safety in µMAX package |
| Peak Current Capability | ±300mA pulsed (1ms, 10% duty cycle) - supports surge-tolerant power-path switching |
| Off-Leakage Current | 1nA max at TA = +25°C - preserves signal integrity in high-impedance sensor interfaces |
| Supply Range | +9V to +40V (single) or ±4.5V to ±20V (dual) - enables wide dynamic range in battery-backed or industrial rails |
| -3dB Bandwidth | 210MHz - supports high-fidelity audio and broadband test-signal routing |
Pinout & Package
MAX4657EUA is housed in an 8-pin µMAX package (3mm × 3mm, 0.8mm height) with exposed paddle (EP) intended for connection to V+. The package provides enhanced thermal performance over standard SOIC but requires careful PCB layout for heat dissipation in high-current operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | COM | Analog common terminal - connects to load; current path shared between NC and switch output |
| 2, 5 | N.C. | No internal connection - must be left unconnected or grounded per layout best practice |
| 3 | GND | Ground reference - serves as return path for digital control and supply decoupling |
| 4 | V+ | Positive supply input - powers P-channel FET and internal logic; EP must connect here |
| 6 | IN | Digital control input - TTL/CMOS compatible; low = ON (NC closed), high = OFF (NC open) |
| 7 | V− | Negative supply input - powers N-channel FET; required for dual-supply operation |
| 8 | NC | Normally closed analog terminal - conducts to COM when IN = low; open when IN = high |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+ without clipping - essential for ±15V audio and instrumentation |
| RON flatness ≤1Ω | Ensures consistent gain and minimal THD across full signal swing - critical for 0.007% THD performance |
| No VL bias required | Reduces BOM count and layout complexity by eliminating auxiliary logic supply rail |
| 210MHz bandwidth | Enables clean switching of composite video, DSL line signals, and wideband test waveforms |
| Pin compatibility with DG417 | Allows drop-in replacement in legacy designs using industry-standard SPST NC switch footprints |
Applications
| Audio Signal Routing | Redundant Power Path Switching |
|---|---|
Use Scenario: Selecting between primary and backup audio sources in PC multimedia boards or professional mixing consoles. IC Role / Device Role / Timing Role: Normally closed analog switch isolating secondary source until failover command is issued. Use Value: 10Ω RON and 0.007% THD preserve signal fidelity; NC default ensures uninterrupted audio during power-up or controller reset. |
Use Scenario: Automatic switchover between main and backup DC power rails in telecom line cards or industrial controllers. IC Role / Device Role / Timing Role: High-current SPST switch controlling load connection to redundant 24V/48V supplies. Use Value: ±150mA continuous rating and 1nA off-leakage prevent cross-conduction or standby drain; NC state maintains default path without active control. |
| Test Equipment Signal Multiplexing | xDSL Line Interface Protection |
Use Scenario: Channel selection in automated test equipment (ATE) for routing calibration signals to DUTs. IC Role / Device Role / Timing Role: Low-RON, high-bandwidth analog switch enabling fast, repeatable signal path configuration. Use Value: 210MHz bandwidth and 110ns typical tON support rapid test sequencing; 25pF off-capacitance minimizes crosstalk in dense multiplexer arrays. |
Use Scenario: Protecting ADSL/VDSL line drivers from transient surges and fault conditions via controlled disconnect. IC Role / Device Role / Timing Role: Fail-safe analog switch inserted in series with line driver output to isolate faults. Use Value: ±300mA peak rating handles short-circuit currents; NC default ensures line remains active unless commanded open during fault detection. |
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 NC topology and µMAX package, but rated for ±300mA continuous current and higher power dissipation (825mW vs. 362mW) | Better suited for sustained high-current loads; requires thermal derating above +70°C | Select MAX4655EUA when continuous current exceeds ±150mA and board-level heatsinking is available |
| DG417DY | Pin-compatible SPST NC switch, but with 35Ω max RON, lower bandwidth (20MHz), and no exposed paddle | Limited to low-frequency, low-current signal routing; lacks rail-to-rail capability beyond ±13.5V | Choose DG417DY only for cost-sensitive, non-demanding applications where 10Ω RON and 210MHz bandwidth are not required |
Compared with MAX4655EUA, MAX4657EUA trades current capacity and thermal headroom for lower quiescent power and smaller footprint suitability in space-constrained designs; versus DG417DY, it delivers order-of-magnitude improvements in RON, bandwidth, and leakage - justifying use where signal fidelity and dynamic range are critical.
Availability
MAX4657EUA is available at Aetrix Electronics and suitable for audio signal routing, redundant power path switching, test equipment multiplexing, and xDSL line interface protection requiring stable component supply across industrial temperature ranges.
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 power management ICs for industrial, communications, and computing applications.
The MAX4655–MAX4658 family was developed to replace electromechanical relays in high-reliability, high-speed analog routing - delivering million-fold lifetime improvement and nanosecond switching in compact CMOS packages.
FAQ
What is the logic polarity of the MAX4657EUA control input?
The MAX4657EUA features normally closed (NC) operation: the switch conducts between pins 1 (COM) and 8 (NC) when the IN pin (pin 6) is driven low (≤0.8V), and opens when IN is high (≥2.4V). This default-closed behavior ensures fail-safe signal continuity during power-up or controller reset - a key requirement in audio and power-path applications where interruption is unacceptable. The MAX4657EUA does not require external pull-up or pull-down resistors for defined startup state.
Can the MAX4657EUA operate from a single +12V supply?
Yes, the MAX4657EUA supports single-supply operation from +9V to +40V. When powered from +12V (V+ = +12V, V− = GND), it maintains rail-to-rail analog signal handling from 0V to +12V, with RON typically 22Ω and 150mA continuous current capability. The GND pin (pin 3) must be connected to system ground, and the exposed paddle (EP) must be soldered to V+ for thermal reliability. This configuration is widely used in PC multimedia boards and industrial I/O modules.
What is the maximum allowable voltage difference between V+ and V− for the MAX4657EUA?
The MAX4657EUA specifies a maximum V+ to V− differential of 44V under absolute maximum ratings. However, functional operation is guaranteed only within ±4.5V to ±20V dual-supply range - meaning the widest usable span is 40V (e.g., V+ = +20V, V− = −20V). Exceeding ±20V risks parametric shift or reliability degradation, even if the 44V limit isn't breached. For asymmetric supplies like V+ = +36V, V− = 0V, the 40V span rule still applies, making +36V/GND valid, but +40V/−5V (45V span) violates operational limits despite staying under 44V absolute max.
How does the exposed paddle (EP) on the MAX4657EUA package affect thermal performance?
The exposed paddle (EP) on the MAX4657EUA's µMAX package must be soldered directly to the V+ net on the PCB to serve as both thermal conduction path and electrical connection. This reduces junction-to-board thermal resistance, allowing the device to sustain its ±150mA continuous current rating at ambient temperatures up to +85°C. Without EP-to-V+ connection, power dissipation is limited to 362mW at +70°C with 4.50mW/°C derating - insufficient for full-rated operation. Thermal vias under the paddle are strongly recommended for high-power layouts.
Is the MAX4657EUA pin-compatible with the DG417 analog switch?
Yes, the MAX4657EUA is pin-compatible with the DG417 in the 8-pin µMAX/SO/TDFN footprint: COM (pin 1), N.C. (pins 2,5), GND (pin 3), V+ (pin 4), IN (pin 6), V− (pin 7), and NC (pin 8) align functionally and physically. This enables direct replacement in existing DG417-based designs. However, the MAX4657EUA offers superior specs - 10Ω vs. 35Ω RON, 210MHz vs. 20MHz bandwidth, and 1nA vs. 10nA off-leakage - so layout and signal integrity benefits are realized immediately without board changes.
MAX4657EUA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- 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-µMAX
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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