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Analog Devices Inc./Maxim Integrated MAX4660ESA+T
- Part No.:
- MAX4660ESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
MAX4660ESA+T.pdf
- Description:
- IC SWITCH SPDT X 1 25OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:334
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Product details
Overview
MAX4660ESA+T from Maxim Integrated is a thermally enhanced, exposed-paddle SO-EP packaged SPDT CMOS analog switch with 25Ω max on-resistance (±15V), 150mA continuous current handling, and rail-to-rail signal capability-designed for high-current relay replacement in xDSL modems and PBX systems.
For engineers reviewing the MAX4660ESA+T datasheet, MAX4660ESA+T pinout, MAX4660ESA+T application, or MAX4660ESA+T equivalent, this page delivers verified electrical specs, thermal performance data, real-world switching behavior under ±15V/12V supplies, and validated alternatives for industrial signal routing designs.
Technical Context
The MAX4660ESA+T implements a dual-MOSFET (N-channel + P-channel) parallel switch architecture with body-node sensing to eliminate conventional 600mV voltage-drop limitations-enabling full rail-to-rail conduction without increased leakage or supply current penalty. Its break-before-make timing is guaranteed ≤10ns (dual supply) and ≤5ns (single supply) at 35pF load.
It operates across ±4.5V to ±20V dual supplies or +9V to +40V single supply, with off-leakage limited to ±10nA (TA = –40°C to +85°C) and charge injection of only 1.5pC (dual supply) or 1pC (single supply), ensuring minimal signal disturbance in precision audio and test equipment paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 25Ω max at ±15V - enables low-loss switching of 150mA continuous loads without significant I²R heating |
| Continuous Current | ±150mA COM/NO/NC - supports direct replacement of electromechanical relays in backup power and telecom line cards |
| Off-Leakage Current | ±10nA max (TA = –40°C to +85°C) - preserves signal integrity in high-impedance sensor and audio bias networks |
| Transition Time | 150ns typ (RL = 300Ω, CL = 35pF) - ensures clean digital-controlled analog path switching in <1µs control loops |
| Supply Range | ±4.5V to ±20V dual or +9V to +40V single - accommodates wide dynamic range in industrial and telecom power architectures |
| Charge Injection | 1.5pC typ (dual supply) - minimizes voltage glitch on sensitive nodes like ADC inputs or filter capacitors |
| -3dB Bandwidth | 225MHz - supports high-fidelity routing of video, RF IF, and broadband communication signals |
Pinout & Package
MAX4660ESA+T uses an 8-pin SOIC package with exposed paddle (SO-EP, pkg code S8E-12), where the exposed paddle must be connected to V+ or left unconnected per Maxim's thermal design guidance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 COM | Analog Switch Common | Central node connecting to either NC or NO based on IN logic state; carries full switched current |
| 2 NC | Normally Closed Terminal | Connected to COM when IN = low; provides fail-safe path in power-loss scenarios |
| 3 GND | Ground Reference | Logic ground reference for IN input; not tied to analog signal return unless system design requires it |
| 4 V+ | Positive Supply Input | Bias source for internal level shifters and N-channel gate drive; connects to exposed paddle for thermal enhancement |
| 5 N.C. | No Connection | Internally unconnected; must remain floating-no external tie or pull-up/pull-down |
| 6 IN | Digital Control Input | TTL/CMOS-compatible logic input (VIH ≥ 2.4V, VIL ≤ 0.8V); controls SPDT state with no VL supply required |
| 7 V- | Negative Supply Input | Bias source for P-channel gate drive; sets lower rail for dual-supply operation |
| 8 NO | Normally Open Terminal | Connected to COM when IN = high; used for active-path selection in redundant systems |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Switches analog signals from V– to V+ without clipping or distortion-critical for ±15V op-amp interfaces |
| Thermally enhanced SO-EP package | 1509mW max power dissipation at +70°C (18.9mW/°C derating)-supports sustained 150mA loads without external heatsinking |
| No VL supply requirement | Eliminates need for auxiliary logic supply-reduces BOM count and layout complexity in isolated systems |
| 1.5Ω max RON flatness (±15V) | Ensures consistent gain and THD across full signal swing-essential for audio routing and instrumentation amplifiers |
| Break-before-make delay ≤5ns (typ) | Prevents momentary shorting between NC and NO paths-avoids transients in high-precision measurement front-ends |
Applications
| Relay Replacement | xDSL Modem Line Switching |
|---|---|
Use Scenario: Replacing electromechanical relays in telecom line interface cards requiring >1 million operations. IC Role / Device Role / Timing Role: SPDT analog switch providing fail-safe NC path and active NO path under microcontroller GPIO control. Use Value: 1M× faster switching speed and infinite cycle life vs. reed relays, with 25Ω RON preserving line impedance matching. |
Use Scenario: Routing analog line signals between ADSL transceivers and POTS splitters in multi-line DSLAM modules. IC Role / Device Role / Timing Role: High-current analog switch enabling hot-swap line reconfiguration without signal interruption. Use Value: ±150mA continuous rating handles peak line surge currents; 225MHz bandwidth maintains DSL signal fidelity up to 2.2MHz. |
| PBX/PABX Signal Routing | Audio System Muting & Selection |
Use Scenario: Selecting between primary and backup voice channels in enterprise telephony systems with strict uptime requirements. IC Role / Device Role / Timing Role: Dual-rail SPDT switch operating from ±12V supplies to isolate faulted lines while maintaining call continuity. Use Value: Off-isolation of –70dB at 1MHz prevents crosstalk between active and standby voice paths. |
Use Scenario: Muting and routing line-level audio between DAC outputs, headphone amps, and speaker drivers in PC multimedia boards. IC Role / Device Role / Timing Role: Low-THD (<0.005%) analog switch controlling signal path under software-defined logic. Use Value: 1.5pC charge injection prevents audible pop/click during mute transitions; rail-to-rail support covers full ±2.5V audio swing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4659ESA+ | 75mA continuous current, 25Ω RON, same SO-EP package but lower thermal rating (471mW) | Suitable for lower-current signal routing where 150mA headroom is unnecessary | Select MAX4659ESA+ only if system peak current stays below 75mA-avoid for relay-replacement use cases. |
| DG419DN-E3 | 100mA continuous, 45Ω RON, no exposed paddle, SO-8 package (non-EP) | Limited thermal performance; requires PCB copper area for heat dissipation at 100mA loads | Use DG419DN-E3 only in space-constrained designs where 25Ω RON and 150mA rating are not required. |
Compared with MAX4659ESA+ and DG419DN-E3, the MAX4660ESA+T delivers higher current capacity, lower on-resistance, and superior thermal management via its exposed paddle-making it the only option qualified for sustained 150mA relay-replacement duty in telecom infrastructure.
Availability
MAX4660ESA+T is available at Aetrix Electronics and suitable for xDSL modems, PBX systems, and audio signal routing applications requiring stable component supply, long-term lifecycle support, and traceable sourcing from authorized channels.
Supply support for MAX4660ESA+T 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.
The MAX4659/MAX4660 product line was designed specifically for high-current, low-RON analog switching in telecom infrastructure and test equipment-addressing the reliability and thermal limitations of mechanical relays and earlier-generation analog switches.
FAQ
What is the maximum continuous current rating for MAX4660ESA+T?
The MAX4660ESA+T supports ±150mA continuous current through its COM, NO, and NC terminals under specified thermal conditions (TA ≤ +70°C). This rating applies across the full operating temperature range (–40°C to +85°C) and is validated with the SO-EP package's 1509mW power dissipation limit. Exceeding this current risks thermal shutdown or accelerated parametric drift in the MAX4660ESA+T.
Can MAX4660ESA+T operate from a single +12V supply?
Yes, the MAX4660ESA+T operates from a single +12V supply (V+ = +12V, V– = 0V), supporting analog signal ranges from 0V to +12V. In this configuration, its on-resistance rises to 60Ω max, transition time extends to 200ns typ, and continuous current remains ±150mA-making it viable for DC-coupled audio and industrial control signal routing where dual supplies are unavailable.
Is the exposed paddle on MAX4660ESA+T required to connect to V+?
No-the exposed paddle on the MAX4660ESA+T may be connected to V+ for optimal thermal performance or left unconnected per Maxim's datasheet guidance. It is not internally tied to any circuit node. Leaving it unconnected reduces PCB layout constraints but sacrifices ~25% of thermal efficiency; connection to V+ improves power dissipation by enhancing heat transfer into the board's copper plane.
How does MAX4660ESA+T achieve rail-to-rail signal handling?
The MAX4660ESA+T achieves rail-to-rail signal handling through a dual-MOSFET (N-channel + P-channel) parallel switch topology with adaptive body-node sensing. Unlike conventional CMOS switches limited to ~600mV drop, this architecture dynamically biases both devices across the full V+ to V– range-allowing undistorted conduction of signals from V– to V+ without clipping, even under heavy load conditions in the MAX4660ESA+T.
What is the off-isolation performance of MAX4660ESA+T at 1MHz?
The MAX4660ESA+T provides –70dB off-isolation at 1MHz (RL = 50Ω), measured as 20log₁₀(VCOM/VNO or VNC). This value reflects strong signal rejection between the selected and deselected paths, critical for preventing crosstalk in multi-channel test equipment and telecom multiplexers. Performance degrades above 5MHz due to parasitic capacitance, requiring careful PCB layout for HF applications.
MAX4660ESA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 25Ohm
- Channel-to-Channel Matching (ΔRon):
- 400mOhm
- Voltage - Supply, Single (V+):
- 9V ~ 40V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- 225MHz
- Charge Injection:
- 1.5pC
- Channel Capacitance (CS(off), CD(off)):
- 6pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -76dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC-EP
MAX4660ESA+T FAQ
1.How can I place an order for MAX4660ESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4660ESA+T 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 MAX4660ESA+T reliable?
The price and inventory of MAX4660ESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4660ESA+T is usually 5 days.
3.What payment methods are accepted for MAX4660ESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4660ESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4660ESA+T?
MAX4660ESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4660ESA+T 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 MAX4660ESA+T?
For technical support, including MAX4660ESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4660ESA+T requirements.
6.How does Aetrix verify that MAX4660ESA+T is sourced from the original manufacturer or authorized distributors?
All MAX4660ESA+T 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 MAX4660ESA+T meets industry standards.
7.What is the process for return or replacement of MAX4660ESA+T?
All MAX4660ESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4660ESA+T, 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 MAX4660ESA+T part is unused and in its original packaging.
Return procedure for MAX4660ESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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