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Analog Devices Inc./Maxim Integrated MAX4661CWE+
- Part No.:
- MAX4661CWE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX4661CWE+.pdf
- Description:
- IC SW SPST-NCX4 2.5OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,152
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Product details
Overview
MAX4661CWE+ from Maxim Integrated is a quad SPST analog switch with four normally closed (NC) channels, designed for precision signal routing in rail-to-rail analog paths. It delivers 2.5Ω max on-resistance, 0.5Ω max RON match between channels, and 5nA max off-leakage at +85°C, enabling low-distortion switching in data acquisition and test equipment.
For engineers reviewing the MAX4661CWE+ datasheet, MAX4661CWE+ pinout, MAX4661CWE+ application, or MAX4661CWE+ equivalent, key selection criteria include guaranteed NC configuration, wide ±4.5V to ±20V dual-supply or +4.5V to +36V single-supply operation, TTL/CMOS-compatible logic inputs, and 16-pin Wide SO package compatibility.
Technical Context
The MAX4661CWE+ implements CMOS-based transmission-gate architecture with independent channel control, supporting true rail-to-rail analog signal handling across its full supply range. Its logic interface uses a dedicated VL pin to maintain TTL/CMOS compatibility regardless of analog supply voltage.
Each NC switch exhibits flat on-resistance (0.5Ω max variation over signal range) and matched RON (0.5Ω max difference between any two channels), critical for multi-channel instrumentation where gain/phase tracking matters. No break-before-make timing is specified - consistent with its NC-only topology.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 2.5Ω max - ensures minimal signal attenuation and voltage drop in precision analog paths |
| RON Match | 0.5Ω max - enables accurate channel-to-channel signal amplitude consistency in multi-path systems |
| RON Flatness | 0.5Ω max over signal range - maintains linear gain response across full input voltage swing |
| Off-Leakage Current | 5nA max at +85°C - preserves high-impedance node integrity in sample-and-hold or sensor interfaces |
| Supply Range | +4.5V to +36V single or ±4.5V to ±20V dual - supports industrial, automotive, and wide-dynamic-range signal chains |
| Logic Compatibility | TTL/CMOS via separate VL pin - decouples digital control voltage from analog rails for robust interfacing |
| ESD Protection | >2kV per Method 3015.7 - enhances reliability in handling-sensitive production and lab environments |
Pinout & Package
MAX4661CWE+ is housed in a 16-pin Wide SO (SOIC-W) package with standard 0.3-inch body width and 1.27mm pitch. Pin 1 is marked by a beveled corner or dot; device orientation follows JEDEC MS-013.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Digital control inputs - active-low logic turns ON NC path (logic 0 = closed) |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals - connect to signal source or load in SPST configuration |
| 3, 6, 11, 14 | NC1–NC4 | Normally closed analog terminals - conduct to COM when IN = 0; open when IN = 1 |
| 4 | V− | Negative analog supply - tied to GND for single-supply operation |
| 5 | GND | Ground reference - return path for logic and analog supplies |
| 12 | VL | Logic supply input - sets logic threshold independently of V+ and V− |
| 13 | V+ | Positive analog supply - defines upper rail for rail-to-rail signal handling |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail Signal Handling | Supports analog signals from V− to V+ without clipping - essential for full-scale ADC driver and audio routing |
| Guaranteed NC Configuration | Four dedicated normally closed switches - eliminates need for external pull-up/down in fail-safe signal paths |
| Low Charge Injection (20pC typ) | Minimizes voltage glitch on sampled nodes - improves accuracy in sample-and-hold and multiplexed data acquisition |
| High Off-Isolation (−56dB typ) | Reduces crosstalk between inactive channels - critical in dense analog mux designs and communication systems |
| Break-Before-Make Exclusion | Not implemented - simplifies timing design where simultaneous conduction must be avoided in NC-only topology |
Applications
| Reed Relay Replacement | ADC Input Multiplexing |
|---|---|
|
Use Scenario: Replacing electromechanical relays in automated test equipment where cycle life, speed, and size are constrained. IC Role / Device Role / Timing Role: Quad NC analog switch providing solid-state signal path closure with sub-500ns turn-on time and no contact bounce. Use Value: Enables >1M cycle reliability, 10× smaller footprint than equivalent relay modules, and zero maintenance in ATE rack systems. |
Use Scenario: Routing multiple sensor outputs to a shared ADC input in industrial process monitoring. IC Role / Device Role / Timing Role: Low-RON, matched-channel switch ensuring uniform gain and offset across all input channels. Use Value: Maintains <±0.01% gain error across temperature and supply variations, directly improving system measurement repeatability. |
| Audio Signal Routing | PBX/PABX Line Interface |
|
Use Scenario: Selecting between microphone or line-level inputs in professional audio mixing consoles. IC Role / Device Role / Timing Role: Rail-to-rail SPST switch handling ±10V peak audio signals without distortion or clipping. Use Value: Delivers THD <−90dB across 20Hz–20kHz due to flat RON and low charge injection, preserving signal fidelity. |
Use Scenario: Managing tip/ring connections and supervision signaling in telephony line cards. IC Role / Device Role / Timing Role: NC-closed default path ensures fail-safe loop continuity during power loss or controller reset. Use Value: Meets GR-909 fault-tolerance requirements by maintaining POTS line integrity without auxiliary power or latching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4662CWE+ | Quad NO (normally open) configuration instead of NC; identical RON, leakage, and supply specs | Suitable where default-open safety state is required (e.g., sensor disconnect on fault) | Select MAX4662CWE+ only if circuit requires de-energized default OFF state - not a drop-in replacement for NC use cases |
| ADG1414BRUZ | Quad SPST, ±15V max supply, 1.8Ω max RON, but rated only for −40°C to +125°C and uses TSSOP-16 | Better RON and extended temp range, but lacks VL pin - logic thresholds track V+ and limit single-supply flexibility | Choose ADG1414BRUZ for higher-temp industrial designs needing lower on-resistance, but verify logic interface compatibility |
Compared with MAX4661CWE+, MAX4662CWE+ provides identical performance in an NO configuration ideal for fail-safe open circuits, while ADG1414BRUZ offers lower RON and wider temperature range but sacrifices independent logic supply support and NC default behavior.
Availability
MAX4661CWE+ is available at Aetrix Electronics and suitable for reed relay replacement, ADC multiplexing, audio routing, and PBX line interface applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX4661CWE+ 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 MAX4661/MAX4662/MAX4663 family was engineered for low-distortion, high-reliability analog signal routing in automated test equipment and instrumentation - prioritizing RON matching, rail-to-rail operation, and robust ESD tolerance.
FAQ
What is the operating temperature range for the MAX4661CWE+?
The MAX4661CWE+ is specified for commercial-grade operation from 0°C to +70°C. This rating is confirmed in the Ordering Information table, where "C" suffix denotes the 0°C to +70°C range, and "W" indicates the Wide SO package. The device's electrical characteristics - including on-resistance, leakage, and switching times - are guaranteed across this full range.
Does the MAX4661CWE+ support single-supply operation?
Yes, the MAX4661CWE+ supports single-supply operation from +4.5V to +36V. In this mode, V− (pin 4) is connected to GND (pin 5), V+ (pin 13) supplies the positive rail, and VL (pin 12) is typically tied to +5V for TTL/CMOS compatibility. All key parameters - including 2.5Ω max RON and 5nA max off-leakage - are validated under single-supply conditions per the datasheet's "ELECTRICAL CHARACTERISTICS-Single Supply" section.
How does the MAX4661CWE+ differ from the MAX4663CWE+?
The MAX4661CWE+ integrates four normally closed (NC) switches, whereas the MAX4663CWE+ combines two NC and two NO switches with guaranteed break-before-make timing. The MAX4661CWE+ has no break-before-make specification - its NC topology inherently avoids simultaneous conduction. Both share identical package, supply ranges, RON, and leakage specs, but their truth tables and functional diagrams confirm distinct switching behaviors per channel.
Can the MAX4661CWE+ handle bipolar analog signals?
Yes, the MAX4661CWE+ handles bipolar analog signals when operated from dual supplies (±4.5V to ±20V). Its rail-to-rail capability allows input signals spanning from V− to V+, enabling seamless passage of ±10V, ±5V, or other symmetrical analog waveforms without clipping or distortion - verified in the "Input Voltage Range" specifications and Typical Operating Characteristics plots.
What is the maximum continuous current rating per switch in the MAX4661CWE+?
The MAX4661CWE+ supports ±200mA continuous current through each COM, NC, or NO terminal, as stated in the Absolute Maximum Ratings table. This rating applies across the full operating temperature range and is independent of supply voltage. For pulsed operation (1ms, 10% duty cycle), peak current rises to ±300mA - sufficient for driving moderate-impedance loads in test and instrumentation applications.
MAX4661CWE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 2.5Ohm
- Channel-to-Channel Matching (ΔRon):
- 100mOhm
- 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)):
- 55pF, 55pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -59dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX4661CWE+ FAQ
1.How can I place an order for MAX4661CWE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4661CWE+ 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 MAX4661CWE+ reliable?
The price and inventory of MAX4661CWE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4661CWE+ is usually 5 days.
3.What payment methods are accepted for MAX4661CWE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4661CWE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4661CWE+?
MAX4661CWE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4661CWE+ 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 MAX4661CWE+?
For technical support, including MAX4661CWE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4661CWE+ requirements.
6.How does Aetrix verify that MAX4661CWE+ is sourced from the original manufacturer or authorized distributors?
All MAX4661CWE+ 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 MAX4661CWE+ meets industry standards.
7.What is the process for return or replacement of MAX4661CWE+?
All MAX4661CWE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4661CWE+, 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 MAX4661CWE+ part is unused and in its original packaging.
Return procedure for MAX4661CWE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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