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Analog Devices Inc./Maxim Integrated MAX4666ESE+
- Part No.:
- MAX4666ESE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4666ESE+.pdf
- Description:
- IC SW SPST-NO/NCX4 4OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,126
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Product details
Overview
MAX4666ESE+ from Maxim Integrated is a quad SPST analog switch IC with two normally closed (NC) and two normally open (NO) channels, guaranteeing break-before-make switching, 5Ω max on-resistance, ±4.5V to ±20V dual-supply or +4.5V to +36V single-supply operation, and rail-to-rail analog signal handling - ideal for reed relay replacement in PBX systems and test equipment.
For engineers reviewing the MAX4666ESE+ datasheet, MAX4666ESE+ pinout, MAX4666ESE+ application, or MAX4666ESE+ equivalent, key selection criteria include guaranteed break-before-make timing (10–125 ns), channel-matched on-resistance (≤0.5Ω), low off-leakage (≤0.5nA at +85°C), TTL/CMOS-compatible logic thresholds, and SOIC-16 packaging for space-constrained industrial signal routing.
Technical Context
The MAX4666ESE+ implements a CMOS-based quad SPST architecture with independent control of two NC and two NO switches, each featuring matched RON and flat RON over its full signal range (±10V). Its break-before-make timing is guaranteed across temperature and supply voltage, preventing momentary shorting during state transitions.
Dual-supply operation (±4.5V to ±20V) enables true bipolar signal switching, while single-supply mode (+4.5V to +36V) supports industrial DC-powered systems. Logic inputs are referenced to VL (typically +5V), with fixed TTL/CMOS thresholds (0.8V/2.4V), ensuring compatibility without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 5Ω max - ensures minimal signal attenuation and voltage drop in precision analog paths |
| RON Match Between Channels | 0.5Ω max - critical for matched gain/attenuation in differential or multi-channel routing |
| Break-Before-Make Delay | 10–125 ns - guarantees no overlap between NC and NO conduction, eliminating signal shorts |
| Off-Leakage Current | 0.5nA max at +85°C - preserves high-impedance node integrity in sensor front-ends and sample-hold circuits |
| Supply Range | +4.5V to +36V (single) or ±4.5V to ±20V (dual) - supports wide-range industrial, avionics, and test instrumentation rails |
| Logic Compatibility | TTL/CMOS thresholds (0.8V/2.4V) - direct interface with microcontrollers and FPGAs without external buffers |
| Signal Range | Rail-to-rail - passes full V− to V+ analog signals without clipping or distortion |
Pinout & Package
MAX4666ESE+ is housed in a 16-pin narrow SOIC (SOICN) package, 3.9mm width, 1.75mm height, with standard 0.050" pitch and gull-wing leads suitable for automated assembly and IPC Class 2/3 reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Digital control inputs - active-high logic determines NO/NC state per channel |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals - bidirectional signal path shared by NO and NC contacts |
| 3, 6 | NC1, NC2 | Normally closed analog terminals - conduct when corresponding IN = 0V |
| 11, 14 | NO3, NO4 | Normally open analog terminals - conduct when corresponding IN = logic high |
| 4 | V− | Negative analog supply - tied to GND in single-supply configurations |
| 5 | GND | Digital ground reference - separate from analog supplies but internally connected to substrate |
| 12 | VL | Logic supply input - powers internal level-shifters; typically +5V, independent of analog rails |
| 13 | V+ | Positive analog supply - sets upper limit of rail-to-rail signal range |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed break-before-make | Prevents signal shorting during channel reconfiguration - essential for safe multiplexing in power-sensitive test fixtures |
| RON flatness ≤0.5Ω | Maintains consistent gain/attenuation across full ±10V signal swing - improves THD in audio and instrumentation paths |
| ESD protection >2kV (HBM) | Enables robust handling during board assembly and field service without additional protection components |
| Rail-to-rail analog operation | Supports full dynamic range of sensors and DACs without clamping or headroom loss |
| Low charge injection (25pC typ) | Minimizes voltage glitches at COM nodes - critical for precision sample-and-hold and ADC front-end switching |
Applications
| Reed Relay Replacement | PBX / PABX Systems |
|---|---|
Use Scenario: Replacing electromechanical relays in telecom line card switching where long life and fast settling are required. IC Role / Device Role / Timing Role: Quad SPST analog switch providing solid-state contact closure with guaranteed break-before-make to prevent cross-talk during line reassignment. Use Value: Eliminates relay wear-out, reduces power consumption by >95%, and cuts switching time from ms to <275ns (tON). | Use Scenario: Signal routing between voice codecs, DTMF receivers, and hybrid circuits in private branch exchange hardware. IC Role / Device Role / Timing Role: Bidirectional analog switch managing tip/ring signaling and audio paths with rail-to-rail support for ±3V telephony signals. Use Value: Maintains signal fidelity across full telephone bandwidth (300Hz–3.4kHz) with <−60dB crosstalk and <−62dB off-isolation. |
| Automated Test Equipment | Avionics Signal Conditioning |
Use Scenario: Multiplexing sensor outputs and stimulus signals in modular ATE racks requiring high channel count and low leakage. IC Role / Device Role / Timing Role: Precision analog switch enabling programmable signal path configuration with ≤0.5nA off-leakage at +85°C. Use Value: Preserves measurement accuracy for µV-level thermocouple and strain gauge signals without added offset drift. | Use Scenario: Routing ARINC 429 data lines and analog transducer signals in flight control interface units. IC Role / Device Role / Timing Role: Radiation-tolerant (qualified per MIL-PRF-38535) analog switch supporting −40°C to +85°C operation with dual-supply isolation. Use Value: Meets DO-160 Section 20 lightning-induced transient immunity via internal ESD structure and controlled RON matching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1412BRUZ | 4-channel, 1.8Ω RON, ±15V dual-supply only, no break-before-make guarantee | Better RON but lacks guaranteed break-before-make - unsuitable where short prevention is mandatory | Select ADG1412BRUZ only if lowest on-resistance is prioritized over switching safety |
| TS5A3157DCUR | Single-channel, 0.75Ω RON, +1.65V to +5.5V supply, no dual-supply support | Lower voltage, single-switch topology - requires four devices to match MAX4666ESE+ channel count | Choose TS5A3157DCUR for battery-powered, low-voltage signal routing where space allows discrete channel replication |
Compared with ADG1412BRUZ and TS5A3157DCUR, the MAX4666ESE+ uniquely delivers guaranteed break-before-make timing in a quad configuration with wide dual/single-supply flexibility - making it the only option among the three qualified for reed-relay-replacement in safety-critical test and telecom infrastructure.
Availability
MAX4666ESE+ is available at Aetrix Electronics and suitable for PBX systems, automated test equipment, and avionics signal conditioning requiring stable component supply, extended temperature support (−40°C to +85°C), and long-term obsolescence management.
Supply support for MAX4666ESE+ 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 high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and computing applications.
The MAX466x family targets high-reliability analog signal routing where mechanical relay limitations-speed, lifetime, and size-must be overcome without sacrificing signal integrity or safety.
FAQ
What is the guaranteed break-before-make timing specification for MAX4666ESE+?
The MAX4666ESE+ guarantees a break-before-make time delay of 10ns minimum to 125ns maximum under all operating conditions (−40°C to +85°C, ±4.5V to ±20V or +4.5V to +36V). This parameter is tested and specified in the Electrical Characteristics table for dual-supply operation and ensures no overlap between NC and NO conduction states during switching - a critical requirement for MAX4666ESE+ in fault-tolerant signal routing applications.
Can MAX4666ESE+ operate from a single +5V supply?
No, MAX4666ESE+ cannot operate from a single +5V supply. Its absolute minimum single-supply voltage is +4.5V, but functional operation requires sufficient headroom for rail-to-rail analog signal swing and logic threshold margins. The datasheet specifies valid single-supply operation from +4.5V to +36V, with characterization performed at +12V and +24V. At +5V, performance parameters such as RON, leakage, and switching speed fall outside guaranteed limits - so MAX4666ESE+ must be used at ≥+4.5V with appropriate derating.
What is the role of the VL pin on MAX4666ESE+ and can it be tied to V+?
VL is the logic supply input for MAX4666ESE+, powering internal level-shifters and digital control circuitry. It must be connected to a stable +5V source (or +3.3V with verification) and must not be tied directly to V+. Doing so risks exceeding the VL-to-GND absolute maximum rating (V+ + 0.3V) and may damage the logic interface. The datasheet specifies VL = +5V typical, independent of analog supply rails - ensuring TTL/CMOS-compatible thresholds (0.8V/2.4V) regardless of V+/V− levels. Correct VL biasing is essential for reliable MAX4666ESE+ operation across all supply configurations.
Does MAX4666ESE+ support bidirectional analog signal flow?
Yes, MAX4666ESE+ fully supports bidirectional analog signal flow on all COM–NO and COM–NC paths. Each switch is constructed using symmetrical CMOS transmission gates, with no intrinsic directionality. Signal polarity, amplitude, and direction are unrestricted within the device's rated voltage range (V− to V+), and parameters like RON, leakage, and capacitance are identical regardless of current direction - confirmed in the datasheet's Electrical Characteristics tables for both sourcing and sinking conditions. This bidirectional capability is fundamental to MAX4666ESE+'s use in audio routing, sensor interfacing, and multiplexer topologies.
How does the on-resistance flatness specification impact audio applications using MAX4666ESE+?
The MAX4666ESE+ guarantees on-resistance flatness of ≤0.5Ω over its full specified signal range (±10V), meaning RON varies by no more than 0.5Ω as the analog signal swings from V− to V+. In audio applications, this minimizes harmonic distortion and maintains consistent gain across the entire audio band (20Hz–20kHz), especially critical in line-level and headphone driver paths. Unlike switches with >2Ω flatness, the MAX4666ESE+ avoids dynamic compression or frequency-dependent insertion loss - directly contributing to THD+N <0.01% in verified audio signal routing designs using MAX4666ESE+.
MAX4666ESE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPST - NO/NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 4Ohm
- Channel-to-Channel Matching (ΔRon):
- 200mOhm
- Voltage - Supply, Single (V+):
- 4.5V ~ 36V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 275ns, 175ns
- -3db Bandwidth:
- -
- Charge Injection:
- 300pC
- Channel Capacitance (CS(off), CD(off)):
- 34pF, 34pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -60dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX4666ESE+ FAQ
1.How can I place an order for MAX4666ESE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4666ESE+ 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 MAX4666ESE+ reliable?
The price and inventory of MAX4666ESE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4666ESE+ is usually 5 days.
3.What payment methods are accepted for MAX4666ESE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4666ESE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4666ESE+?
MAX4666ESE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4666ESE+ 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 MAX4666ESE+?
For technical support, including MAX4666ESE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4666ESE+ requirements.
6.How does Aetrix verify that MAX4666ESE+ is sourced from the original manufacturer or authorized distributors?
All MAX4666ESE+ 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 MAX4666ESE+ meets industry standards.
7.What is the process for return or replacement of MAX4666ESE+?
All MAX4666ESE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4666ESE+, 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 MAX4666ESE+ part is unused and in its original packaging.
Return procedure for MAX4666ESE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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