Analog Devices Inc./Maxim Integrated MAX4665CSE+
- Part No.:
- MAX4665CSE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4665CSE+.pdf
- Description:
- IC SWITCH SPST-NOX4 4OHM 16SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:3,753
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Product details
Overview
MAX4665CSE+ from Maxim Integrated is a quad single-pole single-throw (SPST) analog switch with four normally open (NO) channels, 5Ω maximum on-resistance, ±4.5V to ±20V dual-supply or +4.5V to +36V single-supply operation, and rail-to-rail analog signal handling - used in audio-signal routing, test equipment, and PBX systems where low distortion and mechanical relay replacement are required.
For engineers reviewing the MAX4665CSE+ datasheet, MAX4665CSE+ pinout, MAX4665CSE+ application, or MAX4665CSE+ equivalent, key selection criteria include guaranteed RON match (≤0.5Ω), off-leakage current (≤5nA at +85°C), TTL/CMOS-compatible logic thresholds, and SOIC-16 package compatibility with automated PCB assembly.
Technical Context
The MAX4665CSE+ implements CMOS-based SPST switching architecture with independent channel control, supporting break-before-make timing only in the MAX4666 variant - not applicable here. Its analog path operates across full supply rails, with matched on-resistance and flat RON (≤0.5Ω variation) over ±10V signal range.
Digital inputs feature fixed +0.8V/–+2.4V logic thresholds, ensuring interoperability with TTL/CMOS logic under ±15V or +12V supplies. Supply-independent leakage performance (≤5nA off-leakage at +85°C) and charge injection ≤300pC enable precision signal routing without DC offset accumulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (RON) | 5Ω max - ensures minimal voltage drop and power loss in signal paths up to ±10V. |
| RON match | 0.5Ω max between channels - critical for balanced gain/attenuation in multi-channel audio or instrumentation. |
| RON flatness | 0.5Ω max over signal range - preserves linearity and THD in rail-to-rail analog signals. |
| Off-leakage current | 5nA max at +85°C - prevents signal corruption in high-impedance sensor or bias networks. |
| Supply range | +4.5V to +36V single or ±4.5V to ±20V dual - supports industrial, telecom, and avionics power architectures. |
| Logic compatibility | TTL/CMOS thresholds (+0.8V low / +2.4V high) - eliminates level-shifting in mixed-voltage systems. |
| Turn-on/off time | 130ns/90ns typical (dual supply) - suitable for multiplexing up to ~1MHz without settling errors. |
Pinout & Package
MAX4665CSE+ is housed in a 16-pin narrow SOIC (SOIC-N) package, 3.9mm width, surface-mount compatible with standard reflow profiles and IPC-7351B land patterns.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Independent digital control inputs; active-high logic turns corresponding NO switch ON. |
| 2, 7, 10, 15 | COM1–COM4 | Common analog terminals - bidirectional signal path connection points. |
| 3, 6, 11, 14 | NO1–NO4 | Normally open analog outputs - conduct only when associated INx = logic high. |
| 4 | V− | Negative analog supply rail; tie to GND for single-supply operation. |
| 5 | GND | Digital ground reference for logic inputs and VL supply return. |
| 12 | VL | Logic supply input - accepts +2.7V to +7V, independent of analog supply rails. |
| 13 | V+ | Positive analog supply rail - defines upper limit of rail-to-rail signal range. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+ without clipping - enables full dynamic range in audio and sensor interfaces. |
| Guaranteed RON match | ≤0.5Ω max mismatch between any two channels - essential for channel-to-channel gain consistency in ATE and mux applications. |
| Low off-leakage (5nA) | Minimizes error voltage in high-Z circuits like photodiode amplifiers or precision voltage dividers at elevated temperature. |
| TTL/CMOS-compatible inputs | Fixed +0.8V/–+2.4V thresholds eliminate need for external level shifters when interfacing with FPGA or microcontroller GPIO. |
| ESD protection >2kV | HBM-rated per Method 3015.7 - reduces risk of field failure during handling and board-level integration. |
Applications
| Audio-Signal Routing | Automatic Test Equipment (ATE) |
|---|---|
|
Use Scenario: Switching line-level stereo signals between multiple DACs, ADCs, and headphone amplifiers in professional audio mixers. IC Role / Device Role / Timing Role: Quad SPST NO switch providing isolated analog path selection with <5Ω on-resistance and <0.5Ω channel matching. Use Value: Preserves signal fidelity (THD < –100dB) and avoids crosstalk-induced imaging artifacts due to >60dB off-isolation at 1MHz. |
Use Scenario: Multiplexing DUT stimulus and response signals in semiconductor functional testers with 16-bit DAC/ADC front-ends. IC Role / Device Role / Timing Role: Low-leakage, rail-to-rail analog switch enabling accurate DC-coupled measurements across ±10V ranges. Use Value: 5nA max off-leakage at +85°C prevents measurement drift in high-impedance probe circuits; fast 90ns tOFF supports 1MHz test sequencing. |
| PBX/PABX Systems | Avionics Signal Conditioning |
|
Use Scenario: Selecting between primary and backup voice codecs, ring-detection circuits, and hybrid transceivers in telecom switching matrices. IC Role / Device Role / Timing Role: Four independent NO switches replacing electromechanical relays to route tip/ring and signaling lines. Use Value: Eliminates relay wear-out and bounce; 5Ω RON ensures minimal insertion loss (<0.1dB) in 600Ω telecom impedance environments. |
Use Scenario: Configuring analog sensor inputs (e.g., RTD, thermocouple, pressure transducer) to shared signal-conditioning chains in flight control units. IC Role / Device Role / Timing Role: High-reliability analog switch operating from ±15V supplies with guaranteed performance across –40°C to +85°C. Use Value: Qualified for extended temperature range; 0.5Ω RON flatness maintains calibration accuracy across full ±10V sensor output span. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1414BRUZ | 4-channel SPST, 1.8Ω RON, ±15V supply, but requires VL = VDD; no separate logic supply pin. | Better RON and bandwidth (170MHz), but lacks independent VL rail - limits flexibility in mixed-voltage systems. | Select ADG1414BRUZ when lowest on-resistance and higher-frequency performance (>10MHz) are prioritized over logic supply independence. |
| TS5A3157DCKR | Single-channel SPDT, 0.75Ω RON, +1.65V to +5.5V supply only - no dual-supply capability or rail-to-rail analog swing. | Optimized for low-voltage portable audio; unsuitable for ±15V or +24V industrial signal routing. | Choose TS5A3157DCKR only for battery-powered, single-supply <5.5V designs requiring ultra-low RON and minimal quiescent current. |
Compared with ADG1414BRUZ and TS5A3157DCKR, the MAX4665CSE+ uniquely supports independent logic supply (VL), dual ±20V operation, and guaranteed RON match - making it the preferred choice for industrial, telecom, and avionics systems demanding robust rail-to-rail analog switching with deterministic channel matching.
Availability
MAX4665CSE+ is available at Aetrix Electronics and suitable for automatic test equipment, PBX systems, and avionics signal conditioning requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX4665CSE+ 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 MAX4665CSE+ belongs to Maxim's high-performance analog switch family engineered for low-distortion, rail-to-rail signal routing in mission-critical test, telecom, and aerospace systems.
FAQ
What is the maximum allowable supply voltage for MAX4665CSE+?
The MAX4665CSE+ supports absolute maximum ratings of V+ to GND = –0.3V to +44V and V− to GND = +0.3V to –44V. For reliable operation, use within specified ranges: +4.5V to +36V single supply or ±4.5V to ±20V dual supply. Exceeding these may cause permanent damage per Absolute Maximum Ratings table.
Does MAX4665CSE+ support rail-to-rail analog signal switching?
Yes, MAX4665CSE+ supports rail-to-rail analog signal handling - signals from V− to V+ pass through the switch with minimal distortion. This is confirmed in the General Description and Electrical Characteristics sections, where input voltage range is specified as V− to V+ under all conditions.
What is the logic configuration of MAX4665CSE+?
The MAX4665CSE+ implements four normally open (NO) SPST switches. When INx = logic high (≥+2.4V), the corresponding COMx–NOx path closes; when INx = logic low (≤+0.8V), the path remains open. This is explicitly defined in the General Description and Pin Description sections.
Is MAX4665CSE+ pin-compatible with MAX4664CSE+ or MAX4666CSE+?
No, MAX4665CSE+ is not pin-compatible with MAX4664CSE+ or MAX4666CSE+. While all three share the same 16-pin SOIC package and pinout numbering, their terminal functions differ: MAX4664 uses NC pins, MAX4665 uses NO pins, and MAX4666 mixes NC/NO with break-before-make logic - requiring distinct PCB layouts.
What is the guaranteed RON flatness specification for MAX4665CSE+?
The MAX4665CSE+ guarantees RON flatness of ≤0.5Ω maximum over the specified analog signal range (±10V), meaning the variation between minimum and maximum on-resistance across the full signal swing does not exceed 0.5Ω - critical for maintaining linearity in precision analog paths.
MAX4665CSE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX4665CSE+ FAQ
1.How can I place an order for MAX4665CSE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4665CSE+ 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 MAX4665CSE+ reliable?
The price and inventory of MAX4665CSE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4665CSE+ is usually 5 days.
3.What payment methods are accepted for MAX4665CSE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4665CSE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4665CSE+?
MAX4665CSE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4665CSE+ 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 MAX4665CSE+?
For technical support, including MAX4665CSE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4665CSE+ requirements.
6.How does Aetrix verify that MAX4665CSE+ is sourced from the original manufacturer or authorized distributors?
All MAX4665CSE+ 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 MAX4665CSE+ meets industry standards.
7.What is the process for return or replacement of MAX4665CSE+?
All MAX4665CSE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4665CSE+, 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 MAX4665CSE+ part is unused and in its original packaging.
Return procedure for MAX4665CSE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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