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Analog Devices Inc./Maxim Integrated MAX4661EAE
- Part No.:
- MAX4661EAE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
MAX4661EAE.pdf
- Description:
- IC SW SPST-NCX4 2.5OHM 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,210
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Product details
Overview
MAX4661EAE from Maxim Integrated is a quad, single-pole single-throw (SPST), normally closed (NC) analog switch IC operating from +4.5V to +36V single supply or ±4.5V to ±20V dual supply. It delivers 2.5Ω max on-resistance, 0.5Ω max on-resistance match between channels, and rail-to-rail analog signal handling up to ±10V. Designed for reed relay replacement in test equipment and data acquisition systems, it supports TTL/CMOS-compatible control with separate logic supply (VL) pin.
For engineers reviewing the MAX4661EAE datasheet, MAX4661EAE pinout, MAX4661EAE application, or MAX4661EAE equivalent, key selection criteria include guaranteed NC configuration, -40°C to +85°C industrial temperature rating, 16-pin SSOP package, low 5nA max off-leakage at +85°C, and break-before-make exclusion (only MAX4663 guarantees this).
Technical Context
The MAX4661EAE implements four independent CMOS SPST switches with normally closed topology-each channel connects COM to NC when logic input is low (0.8V max), and disconnects when high (2.4V min). Its architecture uses matched P- and N-channel MOSFETs to achieve flat on-resistance (0.5Ω max variation over ±10V signal range) and low charge injection (20pC typical).
It features a dedicated VL pin enabling logic-level compatibility across full analog supply range, internal ESD protection (>2kV per Method 3015.7), and operates with ±200mA continuous current per switch terminal. No internal level-shifting or timing control logic is present-switching behavior is purely static and voltage-controlled.
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 Between Channels | 0.5Ω max - enables accurate channel-to-channel signal routing without gain mismatch |
| RON Flatness | 0.5Ω max over ±10V - maintains consistent insertion loss across full analog input range |
| Off-Leakage Current | 5nA max at TA = +85°C - preserves high-impedance signal integrity in sample-and-hold or sensor interfaces |
| Supply Range | +4.5V to +36V single or ±4.5V to ±20V dual - supports wide industrial and test-equipment power architectures |
| Logic Compatibility | TTL/CMOS inputs with separate VL pin - decouples logic threshold from analog supply, simplifying mixed-voltage system design |
| Operating Temperature | -40°C to +85°C - qualified for industrial and avionics environments without derating |
Pinout & Package
MAX4661EAE is housed in a 16-pin shrink small-outline package (SSOP) with 0.65mm lead pitch, JEDEC MO-137AC compliant, body size 5.0mm × 6.2mm × 1.75mm. Thermal resistance θJA = 140°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Digital control inputs; low = closed (NC path active), high = open; TTL/CMOS compatible with VL reference |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals - bidirectional signal ports connected to NC pins when switch is active |
| 3, 6, 11, 14 | NC1–NC4 | Normally closed analog terminals - permanently connected to respective COM pins unless INx is high |
| 4 | V− | Negative analog supply rail; tied to GND for single-supply operation |
| 5 | GND | Ground reference for logic and substrate; must be low-impedance return path |
| 12 | VL | Separate logic supply input - sets input threshold (0.8V/2.4V) independent of V+ or V− |
| 13 | V+ | Positive analog supply rail - defines upper limit of rail-to-rail signal swing |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+ (e.g., ±15V or 0V to +12V), eliminating clipping in wide-dynamic-range systems |
| Guaranteed NC configuration | Four dedicated normally closed switches - ensures fail-safe closed state during power loss or logic fault |
| Low 20pC charge injection | Minimizes voltage glitch on high-impedance nodes (e.g., ADC inputs or integrator capacitors) during switching |
| 2.5Ω max on-resistance | Reduces I²R heating and signal distortion in 50Ω–1kΩ impedance applications such as audio routing or sensor multiplexing |
| 100% tested off-leakage at +85°C | Ensures validated leakage performance in thermally stressed industrial deployments without extrapolation |
Applications
| Reed Relay Replacement | Test Equipment Signal Routing |
|---|---|
|
Use Scenario: Replacing electromechanical relays in automated test fixtures where cycle life, speed, and size are critical. IC Role / Device Role / Timing Role: Quad SPST NC switch providing fail-closed signal path for safety-critical stimulus lines. Use Value: Enables >1M switching cycles vs. <100k for relays, eliminates bounce, reduces PCB area by 70%, and cuts power consumption by 95%. |
Use Scenario: Multiplexing multiple DUT signals into shared measurement instruments (e.g., DMM, scope) in ATE racks. IC Role / Device Role / Timing Role: Low-RON, matched analog switch ensuring uniform gain and phase response across all four channels. Use Value: Maintains <0.01% gain error across channels and supports 500ns typical switching, enabling sub-millisecond test sequencing. |
| Data Acquisition Systems | Avionics Signal Conditioning |
|
Use Scenario: Channel selection before a precision SAR ADC in environmental monitoring or industrial PLC modules. IC Role / Device Role / Timing Role: NC-configured front-end switch isolating unused sensor inputs while preserving bias stability. Use Value: 5nA max off-leakage prevents sensor bias drift; rail-to-rail support accommodates ±10V transducer outputs directly. |
Use Scenario: Routing analog sensor data (e.g., pressure, temperature) in flight control interface units with strict reliability requirements. IC Role / Device Role / Timing Role: Fail-safe NC switch ensuring default signal continuity during power-up, reset, or logic fault events. Use Value: Qualified to -40°C to +85°C with 2kV ESD protection meets DO-160 Section 22 lightning-induced transient immunity baseline. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1414BRUZ | Quad SPST NO (not NC); 1.8Ω max RON; requires same supply for logic and analog; -40°C to +125°C | Not fail-safe closed; better RON but no NC default state; wider temp range suits extended automotive use | Select only if normally open behavior is acceptable and higher temperature operation is required. |
| TS5A3157DCKR | Single SPST NC; 0.75Ω max RON; +1.65V to +5.5V supply only; SOT-23-6 package | Single-channel only; limited to low-voltage systems; unsuitable for ±15V or high-voltage signal routing | Use only for space-constrained, low-voltage (<6V) designs requiring ultra-low RON and NC function per channel. |
Compared with ADG1414BRUZ and TS5A3157DCKR, MAX4661EAE uniquely provides quad NC topology with industrial temperature rating and wide analog supply flexibility-making it irreplaceable in fail-safe, high-voltage, multi-channel routing where default closure is mandatory.
Availability
MAX4661EAE is available at Aetrix Electronics and suitable for reed relay replacement, test equipment signal routing, and data acquisition systems requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for MAX4661EAE 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and RF solutions for industrial, communications, and computing markets.
The MAX4661 series belongs to Maxim's precision analog switch product line, engineered specifically for high-reliability, low-distortion signal routing in automatic test equipment and ruggedized data acquisition systems.
FAQ
What is the switching configuration of the MAX4661EAE?
The MAX4661EAE implements four independent normally closed (NC) SPST analog switches. When the digital input (INx) is low (≤0.8V), the COMx–NCx path is closed; when high (≥2.4V), the path opens. This NC behavior is intrinsic to the MAX4661EAE and differs from the NO configuration of MAX4662EAE or mixed NO/NC of MAX4663EAE.
Does the MAX4661EAE support break-before-make switching?
No, the MAX4661EAE does not feature guaranteed break-before-make operation. That functionality is exclusive to the MAX4663EAE variant. The MAX4661EAE performs simple SPST NC switching with no timing coordination between channels - making it unsuitable for applications requiring guaranteed isolation during channel transitions.
What is the maximum analog signal voltage the MAX4661EAE can handle?
The MAX4661EAE supports rail-to-rail analog signals from V− to V+, meaning its maximum signal range equals the difference between its analog supply rails. With ±15V supplies, it handles ±15V; with +12V/V− = GND, it handles 0V to +12V. Absolute maximum ratings limit V+ to +44V and V− to -44V relative to GND.
Can the MAX4661EAE operate with only a single positive supply?
Yes, the MAX4661EAE supports single-supply operation: connect V− to GND, apply +4.5V to +36V to V+, and reference VL to the desired logic level (e.g., +3.3V or +5V). All electrical specifications - including 2.5Ω max RON and 5nA max off-leakage - are guaranteed under single-supply conditions per the datasheet's "Electrical Characteristics-Single Supply" table.
Is the MAX4661EAE pin-compatible with other variants in the MAX466x family?
Yes, all MAX4661/MAX4662/MAX4663 variants share identical 16-pin SSOP, Wide SO, and PDIP packages and pinouts. The MAX4661EAE, MAX4662EAE, and MAX4663EAE are mechanically and electrically pin-compatible - only the internal switch configuration (NC, NO, or mixed) differs. No PCB redesign is needed when substituting within the same package variant.
MAX4661EAE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SSOP
MAX4661EAE FAQ
1.How can I place an order for MAX4661EAE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4661EAE 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 MAX4661EAE reliable?
The price and inventory of MAX4661EAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4661EAE is usually 5 days.
3.What payment methods are accepted for MAX4661EAE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4661EAE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4661EAE?
MAX4661EAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4661EAE 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 MAX4661EAE?
For technical support, including MAX4661EAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4661EAE requirements.
6.How does Aetrix verify that MAX4661EAE is sourced from the original manufacturer or authorized distributors?
All MAX4661EAE 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 MAX4661EAE meets industry standards.
7.What is the process for return or replacement of MAX4661EAE?
All MAX4661EAE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4661EAE, 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 MAX4661EAE part is unused and in its original packaging.
Return procedure for MAX4661EAE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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