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

- Shipping:

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Product details
Overview
MAX4665CSE+T from Maxim Integrated is a quad single-pole single-throw (SPST) normally open (NO) analog switch IC with 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. It delivers guaranteed 0.5Ω max on-resistance matching and flatness over the full signal range, and supports TTL/CMOS-compatible logic inputs. It is used in audio-signal routing and automatic test equipment where low distortion and mechanical relay replacement are required.
For engineers reviewing the MAX4665CSE+T datasheet, MAX4665CSE+T pinout, MAX4665CSE+T application, or MAX4665CSE+T equivalent, key selection criteria include on-resistance flatness across voltage range, off-leakage current at +85°C, break-before-make timing (not applicable to MAX4665), and SOIC narrow package compatibility with high-density PCB layouts.
Technical Context
The MAX4665CSE+T implements four independent CMOS SPST NO switches with fully differential analog path control. Each channel features matched RON (≤0.5Ω) and flat RON (≤0.5Ω) over ±10V signal swing, enabling low THD in precision signal routing. Its logic inputs accept 0.8V/2.4V thresholds for robust TTL/CMOS interfacing under ±15V or +12V supply conditions.
It operates across industrial temperature range (0°C to +70°C) in 16-pin narrow SO package, with absolute maximum ratings of V+ to GND = –0.3V to +44V and V– to GND = +0.3V to –44V. ESD protection exceeds 2kV per Method 3015.7, and dynamic performance includes tON ≤ 275ns and tOFF ≤ 175ns (dual supply, TA = +25°C).
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 analog swing |
| RON Matching | 0.5Ω max between channels - critical for balanced multi-channel signal routing without gain mismatch |
| RON Flatness | 0.5Ω max over signal range - maintains consistent insertion loss across rail-to-rail input voltages |
| Off-Leakage Current | 5nA max at +85°C - preserves signal integrity in high-impedance sensor or precision measurement circuits |
| Supply Range | +4.5V to +36V single or ±4.5V to ±20V dual - supports wide-range industrial and test equipment power architectures |
| Logic Thresholds | VIN_H = 2.4V, VIN_L = 0.8V - guarantees reliable switching with standard TTL/CMOS drivers without level-shifting |
| Turn-On/Off Time | tON ≤ 275ns, tOFF ≤ 175ns - enables fast multiplexing in automated test and communication switching applications |
Pinout & Package
MAX4665CSE+T is housed in a 16-pin narrow SOIC (SOICN) package with 1.27mm pitch, 10.3mm × 5.3mm body size, and exposed pad not present. Pin functions are validated per Maxim's official pin description table and functional diagrams.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Digital control inputs for respective NO switches; active-high logic drives channel ON |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals - bidirectional signal path entry/exit points for each switch |
| 3, 6, 11, 14 | NO1–NO4 | Normally open analog outputs - connect to COM only when corresponding IN is high |
| 4 | V− | Negative analog supply rail; tied to GND for single-supply operation |
| 5 | GND | Digital ground reference for logic inputs and VL supply return |
| 12 | VL | Logic supply input - accepts +5V independent of analog rails for noise isolation |
| 13 | V+ | Positive analog supply rail - sets upper limit of rail-to-rail analog signal range |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports continuous analog signals from V− to V+, enabling full utilization of supply rails in data acquisition systems |
| Guaranteed RON match and flatness | 0.5Ω max channel-to-channel variation and flatness ensures <0.01% gain error across multi-channel audio or instrumentation paths |
| TTL/CMOS-compatible logic inputs | Fixed 0.8V/2.4V thresholds eliminate need for external level shifters when interfacing with microcontrollers or FPGAs |
| ESD protection >2kV | Meets Method 3015.7 - reduces risk of field failure during handling or system integration in manufacturing environments |
| Low off-leakage current | 5nA max at +85°C - prevents signal corruption in high-impedance sensor front-ends and battery-powered portable test gear |
Applications
| Audio-Signal Routing | Automatic Test Equipment (ATE) |
|---|---|
|
Use Scenario: Switching line-level stereo signals between multiple DACs, ADCs, and amplifiers in professional audio mixers. IC Role / Device Role / Timing Role: Quad SPST NO analog switch providing isolated, low-distortion signal paths with simultaneous channel control. Use Value: 5Ω RON and 0.5Ω flatness minimize crosstalk and THD (<0.002%), preserving audio fidelity across 20Hz–20kHz bandwidth. |
Use Scenario: Multiplexing DUT (device under test) connections to measurement instruments in semiconductor ATE platforms. IC Role / Device Role / Timing Role: High-voltage-tolerant analog switch enabling reconfigurable test fixture wiring without mechanical relay wear or bounce. Use Value: ±20V dual-supply support and 5nA off-leakage ensure accurate DC parametric testing of op-amps and precision references. |
| PBX/PABX Telephony Systems | Avionics Signal Conditioning |
|
Use Scenario: Routing voice-band analog signals (300Hz–3.4kHz) between subscriber lines, codecs, and hybrid circuits in digital PBX hardware. IC Role / Device Role / Timing Role: Low-RON, low-leakage analog switch replacing electromechanical relays in line-card interface modules. Use Value: 275ns turn-on time allows sub-millisecond call setup; rail-to-rail operation accommodates ±12V signaling common in legacy telephony interfaces. |
Use Scenario: Selecting between redundant sensor inputs (e.g., pressure, temperature) in flight control computers before ADC sampling. IC Role / Device Role / Timing Role: Radiation-tolerant-capable analog switch providing fail-safe signal path selection with deterministic timing behavior. Use Value: Guaranteed RON match ≤0.5Ω ensures identical gain scaling across redundant channels, supporting built-in test (BIT) validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG441BRZ | Quad SPST NO, 4.5Ω RON, +3V to +40V supply, but no guaranteed RON flatness spec; 16-pin SOIC package | Lacks guaranteed 0.5Ω RON flatness and match - less suitable for precision multi-channel gain matching | Prefer MAX4665CSE+T when flat RON over signal range is required for low-THD audio or metrology |
| TS5A3157DCKR | Single SPST NO, 0.75Ω RON, +1.65V to +5.5V supply only; SC70-6 package - not quad or high-voltage capable | Not functionally equivalent: single-channel, low-voltage only, incompatible supply range and pin count | Select MAX4665CSE+T for quad-channel, ±20V operation; TS5A3157DCKR suits low-voltage portable signal routing only |
Compared with ADG441BRZ and TS5A3157DCKR, the MAX4665CSE+T uniquely combines quad SPST NO topology, 5Ω RON with guaranteed flatness/match, and ±20V dual-supply capability - making it irreplaceable in high-fidelity audio routing and industrial ATE where channel consistency and voltage range are non-negotiable.
Availability
MAX4665CSE+T is available at Aetrix Electronics and suitable for audio-signal routing, automatic test equipment, and avionics signal conditioning requiring stable component supply across extended temperature and voltage ranges.
Supply support for MAX4665CSE+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) designs precision analog, mixed-signal, and high-reliability ICs for industrial, communications, and computing applications.
The MAX4664/MAX4665/MAX4666 family was engineered specifically for high-performance analog switching in test instrumentation and telecom infrastructure, emphasizing low RON variation, rail-to-rail signal integrity, and robust logic interfacing.
FAQ
What is the operating temperature range for MAX4665CSE+T?
The MAX4665CSE+T is specified for commercial temperature operation from 0°C to +70°C. This rating is confirmed in the Ordering Information table and Absolute Maximum Ratings section of the datasheet. The 'C' suffix in MAX4665CSE+T explicitly denotes the 0°C to +70°C grade. For extended temperature range, the MAX4665ESE variant (-40°C to +85°C) is available, but MAX4665CSE+T itself is rated only for 0°C to +70°C operation.
Does MAX4665CSE+T support break-before-make switching?
No, MAX4665CSE+T does not support break-before-make (BBM) switching. BBM is guaranteed only for the MAX4666 variant (which has two NC and two NO switches). The MAX4665CSE+T is a quad normally open (NO) device with independent SPST switches; its truth table shows no interlocked timing between channels. Therefore, simultaneous switching of multiple channels may result in momentary shorting if external sequencing is not implemented.
What is the maximum analog signal voltage range supported by MAX4665CSE+T?
The MAX4665CSE+T supports rail-to-rail analog signals from V− to V+. With ±15V dual supplies, this means ±15V (–15V to +15V); with +12V single supply (V− = GND), it supports 0V to +12V. Absolute maximum ratings allow V+ to GND up to +44V and V− to GND down to –44V, but functional signal range remains bounded by the applied supply rails per the Electrical Characteristics tables.
Can MAX4665CSE+T be used with a single +5V supply?
No, MAX4665CSE+T cannot operate reliably with only a +5V analog supply. Its minimum single-supply voltage is +4.5V, but the datasheet specifies operation from +4.5V to +36V - and critical parameters like RON (5Ω max) and leakage are characterized down to +4.5V only. At +5V, RON rises significantly (typical ~8Ω), and logic thresholds may become marginal. For true +5V operation, consider lower-voltage alternatives such as the MAX4624.
What package type is used for MAX4665CSE+T?
MAX4665CSE+T uses a 16-pin narrow SOIC (SOICN) package, also referred to as "16 Narrow SO" in Maxim's Ordering Information. It has standard 1.27mm lead pitch, 10.3mm × 5.3mm body dimensions, and complies with JEDEC MS-012. The 'SE' suffix in the part number explicitly denotes this narrow SOIC package variant.
MAX4665CSE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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+T FAQ
1.How can I place an order for MAX4665CSE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4665CSE+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 MAX4665CSE+T reliable?
The price and inventory of MAX4665CSE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4665CSE+T is usually 5 days.
3.What payment methods are accepted for MAX4665CSE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4665CSE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4665CSE+T?
MAX4665CSE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4665CSE+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 MAX4665CSE+T?
For technical support, including MAX4665CSE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4665CSE+T requirements.
6.How does Aetrix verify that MAX4665CSE+T is sourced from the original manufacturer or authorized distributors?
All MAX4665CSE+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 MAX4665CSE+T meets industry standards.
7.What is the process for return or replacement of MAX4665CSE+T?
All MAX4665CSE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4665CSE+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 MAX4665CSE+T part is unused and in its original packaging.
Return procedure for MAX4665CSE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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