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Analog Devices Inc./Maxim Integrated MAX4660EUA+
- Part No.:
- MAX4660EUA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
MAX4660EUA+.pdf
- Description:
- IC SWITCH SPDT X 1 25OHM 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:3,948
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Product details
Overview
MAX4660EUA+ from Maxim Integrated is a thermally enhanced, exposed-paddle µMAX-packaged SPDT CMOS analog switch designed for high-current signal routing in industrial and telecom systems. It delivers 25Ω max on-resistance at ±15V, supports ±150mA continuous current and ±200mA peak current, and handles rail-to-rail analog signals across ±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 MAX4660EUA+ datasheet, MAX4660EUA+ pinout, MAX4660EUA+ application, or MAX4660EUA+ equivalent, key selection criteria include verified on-resistance flatness (≤1.5Ω), sub-1nA off-leakage at +25°C, break-before-make timing (≤5ns), and thermal performance enabled by the exposed paddle connected to V+.
Technical Context
The MAX4660EUA+ implements an N-channel/P-channel MOSFET parallel switch architecture with proprietary body-drive sensing to eliminate conventional 600mV voltage-drop limitations. This enables full rail-to-rail conduction without increased leakage or supply current under high-voltage differential conditions.
It operates in true SPDT mode with independent normally open (NO) and normally closed (NC) paths controlled by a single TTL/CMOS-compatible IN pin. Signal integrity is maintained via low charge injection (1.5pC typical), 225MHz -3dB bandwidth, and -70dB off-isolation at 1MHz - all validated across -40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 25Ω max at ±15V - ensures minimal signal attenuation and power loss in high-current analog paths. |
| Continuous Current | ±150mA - supports sustained switching of loads down to 50Ω without derating or thermal shutdown. |
| Peak Current | ±200mA (1ms, 10% duty cycle) - handles transient surges in relay-replacement and test-equipment applications. |
| Off-Leakage Current | 1nA max at TA = +25°C - preserves signal integrity in high-impedance sensor or audio routing circuits. |
| Supply Range | ±4.5V to ±20V dual or +9V to +40V single - enables flexible biasing in mixed-signal systems with wide dynamic range. |
| Transition Time | 150ns typical - provides fast switching for time-critical signal multiplexing in communication systems. |
| RON Flatness | 1.5Ω max at ±15V - maintains consistent gain and linearity across full analog input range. |
Pinout & Package
The MAX4660EUA+ is housed in an 8-pin thermally enhanced µMAX package (U8E-2) with an exposed paddle electrically connected to V+ or left unconnected per layout requirements. The exposed paddle significantly improves thermal resistance (θJA reduced vs. standard µMAX), supporting higher continuous current operation in compact PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - COM | Analog Switch Common | Shared signal path terminal; connects to either NO or NC based on logic state of IN. |
| 2 - NC | Normally Closed Terminal | Electrically connected to COM when IN = low; breaks before NO makes during transition. |
| 3 - GND | Ground Reference | System ground reference for digital control and internal bias networks; not signal return path. |
| 4 - V+ | Positive Supply Input | Primary positive rail; exposed paddle must be tied to this pin or left floating - not grounded. |
| 5 - N.C. | No Connection | Internally unconnected; must remain unconnected on PCB to avoid parasitic coupling. |
| 6 - IN | Digital Control Input | TTL/CMOS-compatible logic input; low = NC closed, high = NO closed; no VL supply required. |
| 7 - V- | Negative Supply Input | Negative rail for dual-supply operation; supports asymmetrical supplies within 40V total range. |
| 8 - NO | Normally Open Terminal | Connects to COM only when IN = high; complements NC for SPDT signal routing. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog inputs from V− to V+, eliminating level-shifting circuitry in ±15V systems. |
| Thermally enhanced µMAX-EP package | Exposed paddle reduces θJA, enabling 150mA continuous current without external heatsinking. |
| Break-before-make switching | Guaranteed ≤5ns delay prevents momentary shorting between NO and NC paths during state change. |
| No VL supply requirement | Operates directly from main V+/V− rails - simplifies power architecture and reduces BOM count. |
| Low charge injection (1.5pC) | Minimizes voltage glitches at COM during switching - critical for precision ADC/DAC multiplexing. |
Applications
| Relay Replacement | Test Equipment Signal Routing |
|---|---|
|
Use Scenario: Replacing electromechanical relays in automated test fixtures requiring >1M cycle lifetime and sub-millisecond switching. IC Role / Device Role / Timing Role: SPDT analog switch providing isolated signal path selection between DUT and measurement instruments. Use Value: Eliminates relay wear-out and bounce while delivering 200× faster switching and 100× lower power (3mW vs. 600mW). |
Use Scenario: Multiplexing multiple sensor outputs or stimulus sources into shared acquisition channels in benchtop analyzers. IC Role / Device Role / Timing Role: High-fidelity analog switch maintaining signal integrity across DC–225MHz bandwidth with <1.5pC charge injection. Use Value: Enables accurate multi-channel measurements without cross-talk (-76dB) or harmonic distortion (0.005% THD). |
| xDSL Line Card Protection | PBX Audio Path Switching |
|
Use Scenario: Protecting ADSL/VDSL line drivers from overvoltage transients while routing bidirectional analog signals. IC Role / Device Role / Timing Role: High-voltage SPDT switch operating at ±15V with 44V V+–V− tolerance and clamped I/O protection. Use Value: Withstands lightning-induced surges up to ±44V differential while preserving 25Ω RON and rail-to-rail signal fidelity. |
Use Scenario: Selecting between primary and backup voice channels in carrier-grade PBX systems with hot-swap redundancy. IC Role / Device Role / Timing Role: Low-leakage (1nA), low-distortion analog switch ensuring seamless audio handover without pop/click artifacts. Use Value: Delivers <0.005% THD and -70dB off-isolation at 1MHz - meeting ITU-T G.117 echo suppression requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4659EUA+ | Same pinout and architecture but rated for ±75mA continuous / ±150mA peak current; 30Ω max RON at ±15V. | Lower current capability limits use in high-power relay-replacement or xDSL line cards. | Select MAX4659EUA+ only when load current stays below 75mA continuous and thermal budget allows higher RON. |
| DG419DY+ | Pin-compatible but rated for ±50mA continuous; 60Ω max RON at ±15V; no exposed paddle; higher 5nA off-leakage. | Insufficient current headroom and thermal margin for MAX4660EUA+'s target applications. | Use DG419DY+ only in legacy designs where footprint compatibility is mandatory and current demand is ≤50mA. |
Compared with MAX4659EUA+ and DG419DY+, the MAX4660EUA+ uniquely combines 150mA continuous current, 25Ω RON, and exposed-paddle thermal enhancement - making it the only option qualified for high-reliability, high-current SPDT switching in telecom infrastructure and automated test equipment.
Availability
MAX4660EUA+ is available at Aetrix Electronics and suitable for relay replacement, test equipment signal routing, and xDSL modem design requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.
Supply support for MAX4660EUA+ 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 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 allowable voltage difference between V+ and V- for the MAX4660EUA+?
The MAX4660EUA+ supports a maximum V+ to V− differential of +44V, as specified in Absolute Maximum Ratings. Operation within ±4.5V to ±20V dual supplies or +9V to +40V single supply is fully characterized. Exceeding +44V risks permanent damage, even if individual rail voltages remain within range. Always verify V+ − V− ≤ 44V in both steady-state and transient conditions when using the MAX4660EUA+.
Can the exposed paddle on the MAX4660EUA+ be connected to ground instead of V+?
No - the exposed paddle on the MAX4660EUA+ must be connected to V+ or left unconnected per Maxim's datasheet guidance. Connecting it to ground violates the internal electrical structure and may cause latch-up or excessive leakage. Thermal performance is optimized when soldered to a V+-referenced copper pour. The MAX4660EUA+ datasheet explicitly states "exposed paddle connected to V+ or left unconnected" - grounding is not a valid configuration.
Does the MAX4660EUA+ require a separate logic supply (VL) for its IN pin?
No, the MAX4660EUA+ does not require a separate VL supply. Its IN pin is fully TTL/CMOS compatible and operates directly from the main V+/V− rails - accepting logic-high thresholds of 2.4V minimum and logic-low thresholds of 0.8V maximum across the full temperature range. This eliminates the need for level shifters or auxiliary logic supplies, simplifying system power architecture when using the MAX4660EUA+.
How does the MAX4660EUA+ achieve 200mA peak current capability without thermal failure?
The MAX4660EUA+ achieves 200mA peak current capability through its thermally enhanced µMAX-EP package, which features an exposed paddle that lowers junction-to-ambient thermal resistance. Combined with its proprietary body-drive sensing architecture - which avoids parasitic diode conduction - the MAX4660EUA+ sustains high current without triggering thermal runaway. Derating curves confirm 200mA pulsed operation remains within safe SOA limits when board layout follows Maxim's recommended copper area guidelines for the exposed paddle.
Is the MAX4660EUA+ pin-compatible with the MAX4660ESA+?
Yes, the MAX4660EUA+ and MAX4660ESA+ share identical pin functions and electrical specifications, differing only in package type: µMAX-EP (U8E-2) versus SO-EP (S8E-12). Both have the same pin numbering, signal roles, and absolute maximum ratings. However, thermal performance and PCB footprint differ - the µMAX-EP offers superior θJA in space-constrained layouts, while the SO-EP provides higher power dissipation (1509mW vs. 825mW at +70°C) in larger footprints. Layout changes are required when substituting between them.
MAX4660EUA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- 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-uMAX-EP|8-uSOP-EP
MAX4660EUA+ FAQ
1.How can I place an order for MAX4660EUA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4660EUA+ 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 MAX4660EUA+ reliable?
The price and inventory of MAX4660EUA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4660EUA+ is usually 5 days.
3.What payment methods are accepted for MAX4660EUA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4660EUA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4660EUA+?
MAX4660EUA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4660EUA+ 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 MAX4660EUA+?
For technical support, including MAX4660EUA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4660EUA+ requirements.
6.How does Aetrix verify that MAX4660EUA+ is sourced from the original manufacturer or authorized distributors?
All MAX4660EUA+ 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 MAX4660EUA+ meets industry standards.
7.What is the process for return or replacement of MAX4660EUA+?
All MAX4660EUA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4660EUA+, 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 MAX4660EUA+ part is unused and in its original packaging.
Return procedure for MAX4660EUA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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