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Analog Devices Inc./Maxim Integrated MAX4660ESA+
- Part No.:
- MAX4660ESA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
MAX4660ESA+.pdf
- Description:
- IC SWITCH SPDT X 1 25OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,433
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Product details
Overview
MAX4660ESA+ from Maxim Integrated is a high-current, single-pole/double-throw (SPDT) CMOS analog switch with 25Ω max on-resistance at ±15V, 150mA continuous current handling, and rail-to-rail signal capability across ±4.5V to ±20V dual supplies or +9V to +40V single supply. It replaces electromechanical relays in high-reliability audio routing and test equipment where fast switching, low charge injection (1pC), and sub-1nA off-leakage are critical.
For engineers reviewing the MAX4660ESA+ datasheet, MAX4660ESA+ pinout, MAX4660ESA+ application, or MAX4660ESA+ equivalent, key selection factors include verified SPDT topology, thermally enhanced SO-EP package, guaranteed 150mA continuous current per channel, and compatibility with ±15V/12V systems requiring low RON flatness (≤2Ω) and <200ns transition time.
Technical Context
The MAX4660ESA+ implements a parallel N-channel/P-channel MOSFET switch architecture with proprietary body-drive sensing to eliminate voltage-drop limitations-enabling full rail-to-rail conduction without parasitic diode turn-on. Its break-before-make timing (≤10ns at 12V) ensures signal integrity during channel switching in bidirectional analog paths.
It operates without a separate logic supply (VL not required), accepts TTL/CMOS-compatible control inputs, and maintains ≤1.5Ω RON matching between NC and NO channels under ±15V conditions-critical for precision multiplexing in communication and audio systems where channel-to-channel gain consistency is mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 25Ω max at ±15V - enables low insertion loss in 50Ω–600Ω signal paths |
| Continuous Current Rating | ±150mA per channel - supports high-power audio drivers and relay-replacement loads |
| Off-Leakage Current | ±10nA max at TA = +85°C - preserves DC accuracy in sensor front-ends and precision instrumentation |
| Transition Time | 200ns max (RL = 300Ω, CL = 35pF) - ensures clean switching for audio and xDSL band signals |
| Charge Injection | 1pC typical - minimizes voltage glitches in sample-and-hold and ADC input conditioning |
| Supply Range | ±4.5V to ±20V dual or +9V to +40V single - accommodates industrial and telecom power rails |
| Bandwidth | 225MHz - supports wideband RF and high-speed data routing up to 100MHz |
Pinout & Package
MAX4660ESA+ uses an 8-pin SOIC package with exposed paddle (SO-EP, pkg code S8E-12), thermally optimized for high-current operation. The exposed paddle must be connected to V+ or left unconnected per datasheet 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 load current |
| 2 NC | Normally Closed Terminal | Connected to COM when IN = low; used for default-path signal routing |
| 3 GND | Ground Reference | Logic ground reference; not signal return-separate from power ground in mixed-signal layouts |
| 4 V+ | Positive Supply Input | Bias for P-channel device and exposed paddle connection point for thermal management |
| 5 N.C. | No Connection | Internally unconnected pin; must remain floating or tied to V+ per layout guidelines |
| 6 IN | Digital Control Input | TTL/CMOS-compatible logic input (VIH ≥ 2.4V, VIL ≤ 0.8V); controls NC/NO path selection |
| 7 V- | Negative Supply Input | Bias for N-channel device; sets lower rail for dual-supply operation |
| 8 NO | Normally Open Terminal | Connected to COM when IN = high; enables active-path signal routing |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports signals from V− to V+ without clipping-essential for ±15V op-amp interfaces and audio line drivers |
| Thermally enhanced SO-EP package | 1509mW power dissipation at +70°C (18.9mW/°C derating)-enables sustained 150mA operation without external heatsinking |
| Break-before-make switching | ≤10ns delay prevents momentary shorting between NC and NO-critical for avoiding signal transients in PBX and redundant systems |
| No VL supply required | Eliminates need for third logic supply rail-reduces BOM count and simplifies PCB routing in space-constrained designs |
| Low RON flatness (≤2Ω) | Ensures consistent gain across full analog input range-vital for distortion-sensitive audio and measurement applications |
Applications
| Audio Signal Routing | Test Equipment Multiplexing |
|---|---|
Use Scenario: Switching line-level stereo signals between multiple amplifiers and DACs in PC multimedia boards. IC Role / Device Role / Timing Role: SPDT analog switch providing low-distortion (<0.005% THD), low-crosstalk (−76dB) path selection with sub-200ns settling. Use Value: Replaces mechanical relays with million-fold cycle life, eliminating wear-out and contact bounce in consumer audio systems. |
Use Scenario: Routing DUT signals to multiple measurement instruments (oscilloscope, spectrum analyzer, DMM) in automated test fixtures. IC Role / Device Role / Timing Role: High-current SPDT switch enabling 150mA stimulus delivery and low-leakage (<10nA) signal isolation between test channels. Use Value: Guarantees repeatable measurements via stable RON matching (≤1.5Ω) and minimal charge injection (1pC) during channel scanning. |
| xDSL Modem Line Interface | Redundant Power Path Control |
Use Scenario: Selecting between primary and backup DSL line drivers in ADSL/VDSL modems operating from ±15V supplies. IC Role / Device Role / Timing Role: Bidirectional SPDT switch handling rail-to-rail AC-coupled signals up to 30MHz with 225MHz bandwidth. Use Value: Maintains signal fidelity across full frequency band due to flat RON and −70dB off-isolation at 1MHz. |
Use Scenario: Managing failover between primary and backup 12V power rails in telecom shelf controllers. IC Role / Device Role / Timing Role: High-reliability SPDT switch conducting 150mA continuously while blocking reverse current with <10nA leakage. Use Value: Enables seamless switchover with break-before-make timing preventing bus contention during redundancy transitions. |
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 current rating | Suitable for lower-power audio and instrumentation where 150mA is not required | Select MAX4659ESA+ only if load current stays below 75mA; MAX4660ESA+ provides headroom for peak surges |
| DG419DY+ | 100mA continuous current, 60Ω RON, no exposed paddle, SOIC-8 without thermal enhancement | Limited to lower-current, non-thermally demanding applications like basic signal routing | Choose DG419DY+ only when cost sensitivity outweighs thermal performance and current capability requirements |
Compared with MAX4659ESA+ and DG419DY+, the MAX4660ESA+ delivers 100% higher continuous current than MAX4659ESA+ and 50% higher than DG419DY+, plus superior thermal performance via its exposed paddle-making it the sole choice for sustained 150mA operation in compact, high-density layouts.
Availability
MAX4660ESA+ is available at Aetrix Electronics and suitable for audio signal routing, test equipment multiplexing, and xDSL modem line interface applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX4660ESA+ 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 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 relay-replacement and precision signal-path applications-emphasizing thermal robustness, rail-to-rail operation, and reliability over millions of cycles.
FAQ
What is the maximum continuous current rating for MAX4660ESA+?
The MAX4660ESA+ supports ±150mA continuous current per channel (COM, NO, NC) at TA = +70°C with proper thermal management. This rating is validated under dual-supply conditions (±15V) and applies to both directions of signal flow. Exceeding this limit risks exceeding the 1509mW power dissipation ceiling of its SO-EP package, potentially triggering thermal shutdown or long-term reliability degradation. Always verify PCB copper area and ambient temperature in final layout.
Does MAX4660ESA+ require a separate logic supply voltage (VL)?
No, the MAX4660ESA+ does not require a separate VL supply. Its digital control input (IN) is fully TTL/CMOS compatible, accepting VIH ≥ 2.4V and VIL ≤ 0.8V referenced to GND, regardless of whether the analog supplies are ±15V or +12V single-ended. This eliminates the need for level-shifting circuitry and reduces system complexity-confirmed in the "VL Supply Not Required" feature and Electrical Characteristics tables of the datasheet.
Can MAX4660ESA+ operate with asymmetric dual supplies, such as +12V and −5V?
Yes, the MAX4660ESA+ supports asymmetric dual-supply operation as long as the total V+ to V− differential remains within the absolute maximum rating of +44V and each supply stays within its respective voltage limits (V+ to GND: −0.3V to +44V; V− to GND: −44V to +0.3V). For example, +12V and −5V yields a 17V span-well within spec-and maintains full rail-to-rail analog signal handling from −5V to +12V, as verified in the Absolute Maximum Ratings and Operating Conditions sections.
What is the purpose of the exposed paddle on the MAX4660ESA+ SO-EP package?
The exposed paddle on the MAX4660ESA+ serves as a thermal conduction path to dissipate heat generated during high-current operation. Per the datasheet, it must be connected to V+ (not GND or floating) to maximize thermal performance-enabling the rated 1509mW power dissipation at +70°C. Leaving it unconnected degrades thermal resistance by ~30%, risking junction temperature exceedance under sustained 150mA loads. PCB layout must include appropriate solder mask openings and thermal vias to the internal ground or power plane.
How does MAX4660ESA+ achieve rail-to-rail signal handling without body diode conduction?
The MAX4660ESA+ uses a proprietary body-drive sensing technique that actively controls the gate bias of the output N-channel MOSFET, preventing parasitic diode turn-on even at large voltage drops across the switch. Unlike conventional CMOS switches limited to ~600mV drop, this architecture allows full conduction from V− to V+ under all operating conditions-verified by the "Rail-to-Rail Signal Handling" feature and detailed in the Detailed Description section, where it explicitly states "no limitation to the voltage drop across the switch."
MAX4660ESA+ 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-SOIC-EP
MAX4660ESA+ FAQ
1.How can I place an order for MAX4660ESA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4660ESA+ 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+ reliable?
The price and inventory of MAX4660ESA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4660ESA+ is usually 5 days.
3.What payment methods are accepted for MAX4660ESA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4660ESA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4660ESA+?
MAX4660ESA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4660ESA+ 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+?
For technical support, including MAX4660ESA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4660ESA+ requirements.
6.How does Aetrix verify that MAX4660ESA+ is sourced from the original manufacturer or authorized distributors?
All MAX4660ESA+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX4660ESA+?
All MAX4660ESA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4660ESA+, 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+ part is unused and in its original packaging.
Return procedure for MAX4660ESA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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