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Analog Devices Inc./Maxim Integrated MAX4661EPE
- Part No.:
- MAX4661EPE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX4661EPE.pdf
- Description:
- IC SWITCH SPST-NCX4 2.5OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,057
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Product details
Overview
MAX4661EPE 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 MAX4661EPE datasheet, MAX4661EPE pinout, MAX4661EPE application, or MAX4661EPE equivalent, key selection criteria include guaranteed NC configuration, -40°C to +85°C industrial temperature rating, 16-pin plastic DIP package, low 5nA max off-leakage at +85°C, and break-before-make exclusion (as MAX4661 is NC-only, unlike MAX4663).
Technical Context
The MAX4661EPE implements four independent CMOS SPST switches with normally closed topology - each COM terminal connects to its corresponding NC terminal when the control input is logic low. Its architecture uses matched P- and N-channel MOSFETs to achieve flat on-resistance (<0.5Ω variation) across the full ±10V signal range and tight channel-to-channel RON matching (≤0.5Ω).
It features a dedicated VL pin enabling TTL/CMOS logic compatibility across the entire analog supply range (+4.5V to +36V or ±4.5V to ±20V), while internal ESD protection exceeds 2kV per Method 3015.7. Unlike the MAX4663, it does not implement break-before-make timing - all four switches operate synchronously with no intentional inter-channel delay.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 2.5Ω max - ensures minimal voltage drop and signal attenuation in precision analog routing paths |
| RON Match (ΔRON) | 0.5Ω max - enables matched gain/attenuation in multi-channel instrumentation or differential signal switching |
| RON Flatness | 0.5Ω max over ±10V - maintains consistent insertion loss across full analog input range without distortion |
| Off-Leakage Current | 5nA max at +85°C - preserves high-impedance node integrity in sample-and-hold or sensor front-ends |
| Supply Range | +4.5V to +36V single or ±4.5V to ±20V dual - supports wide-input industrial sensors and legacy ±15V systems |
| Logic Compatibility | TTL/CMOS via separate VL pin - decouples logic threshold from analog rail, simplifying mixed-supply designs |
| ESD Protection | >2kV HBM - enhances robustness in automated test handlers and field-deployable equipment |
Pinout & Package
MAX4661EPE is housed in a 16-pin plastic DIP (dual in-line package) with 0.3-inch body width and standard through-hole mounting. Pin spacing is 0.1 inch, compatible with industry-standard PCB footprints and socketing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Digital control inputs - logic low closes switch (COM↔NC); active-low enable behavior |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals - connect to signal source or load; bidirectional current path |
| 3, 6, 11, 14 | NC1–NC4 | Normally closed analog terminals - connected to COM when IN = low; open when IN = high |
| 4 | V− | Negative analog supply - tie to GND for single-supply operation; sets lower signal rail |
| 5 | GND | Ground reference - return path for logic and analog supplies; must be low-impedance |
| 12 | VL | Logic supply input - accepts 2.0V to V+; defines logic threshold independently of analog rails |
| 13 | V+ | Positive analog supply - sets upper signal rail; supports up to +36V for high-voltage signal routing |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+ (e.g., ±15V or 0V to +24V), eliminating level-shifting 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 charge injection (20pC typ) | Minimizes voltage glitch on sampled nodes in precision ADC front-ends and sample-and-hold circuits |
| High off-isolation (−56dB typ) | Reduces crosstalk between inactive channels in multi-signal routing applications like PBX or communication systems |
| Separate VL supply pin | Enables interface with 3.3V or 5V microcontrollers while powering analog section from ±15V or +24V rails |
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 solid-state, bounce-free switching of DC to 100kHz signals. Use Value: Eliminates mechanical wear (100M+ cycles vs. 100k relay cycles), reduces actuation time (300ns tOFF), and cuts board area by >70% versus DIP relay modules. |
Use Scenario: Multiplexing sensor outputs or stimulus signals in ATE platforms requiring low distortion and fast settling. IC Role / Device Role / Timing Role: Precision analog switch routing calibrated reference voltages and transducer signals to DMM or digitizer inputs. Use Value: 2.5Ω RON and 0.5Ω matching preserve measurement accuracy; rail-to-rail support accommodates ±10V sensor spans without clipping. |
| Data Acquisition Systems | Avionics Signal Conditioning |
|
Use Scenario: Channel selection in 16-bit+ data loggers interfacing thermocouples, strain gauges, and RTDs. IC Role / Device Role / Timing Role: Low-leakage (5nA @ +85°C), low-charge-injection analog multiplexer front-end stage. Use Value: Prevents offset drift in high-gain instrumentation amplifiers; flat RON avoids gain error variation across temperature and signal range. |
Use Scenario: Signal isolation and routing in flight control interface units handling discrete status and analog sensor feedback. IC Role / Device Role / Timing Role: Fail-safe NC switch ensuring default connection of critical bus lines during power-up or controller reset. Use Value: Guaranteed NC behavior provides deterministic startup state; −40°C to +85°C rating meets DO-160 environmental requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4662EPE | Quad SPST normally open (NO) configuration - opens on logic low, closes on logic high | Suitable where default-open safety state is required (e.g., disabling power paths on fault) | Select MAX4662EPE only if NC functionality is not needed; pinout and specs otherwise identical |
| ADG465BRZ | Quad SPST NO switch with 4.5Ω RON, no separate VL pin, operates up to +32V single supply | Lacks rail-to-rail capability beyond ±10V and has higher leakage (10nA @ +85°C) | Use ADG465BRZ only in cost-sensitive, non-critical applications where 2.5Ω RON and ultra-low leakage are not mandatory |
Compared with MAX4662EPE, MAX4661EPE provides fail-safe closed-path behavior essential for monitoring loops; compared with ADG465BRZ, it delivers superior on-resistance, tighter matching, and true rail-to-rail operation - critical for high-fidelity signal routing in industrial and avionics systems.
Availability
MAX4661EPE is available at Aetrix Electronics and suitable for reed relay replacement, test equipment signal routing, and data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4661EPE 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 designed specifically for high-reliability, low-distortion analog switching in automatic test equipment and precision instrumentation - prioritizing RON flatness, leakage control, and supply flexibility over raw speed.
FAQ
What is the maximum analog signal voltage range supported by the MAX4661EPE?
The MAX4661EPE supports rail-to-rail analog signals from V− to V+, meaning it handles ±10V with ±15V supplies or 0V to +24V with +24V/V− = GND configurations. Absolute maximum ratings allow V+ up to +44V and V− down to −44V, but functional signal range is bounded by the applied supply rails. The device maintains 2.5Ω max RON and 0.5Ω flatness across the full specified signal range.
Does the MAX4661EPE support break-before-make switching?
No, the MAX4661EPE does not feature break-before-make switching. It is a normally closed (NC) device where all four switches transition simultaneously - closing when IN is low and opening when IN is high. Break-before-make is exclusive to the MAX4663 variant (guaranteed 5ns–125ns tOPEN). Using MAX4661EPE in place of MAX4663 for BBM-critical applications risks momentary shorting between channels.
Can the MAX4661EPE operate from a single 5V supply?
Yes, the MAX4661EPE operates from a single +4.5V to +36V supply. With V+ = +5V and V− = GND, it supports analog signals from 0V to +5V. RON remains ≤4Ω (typical 3Ω), and logic inputs remain compatible via VL pin (set to 3.3V or 5V). However, rail-to-rail capability is limited to 0V–5V, not ±2.5V - the "rail-to-rail" specification applies only when V− is negative relative to GND.
What is the purpose of the VL pin on the MAX4661EPE?
The VL pin on the MAX4661EPE provides an independent logic supply reference, allowing TTL/CMOS-compatible input thresholds (VIN_H = 2.4V, VIN_L = 0.8V) regardless of analog supply voltage. This enables direct interfacing with 3.3V or 5V microcontrollers even when V+ is +24V or ±15V. VL must be connected between 2.0V and V+; leaving it unconnected or tying it to GND will disable logic functionality.
How does the MAX4661EPE compare to mechanical relays in automatic test equipment?
The MAX4661EPE replaces electromechanical relays in ATE by delivering 100M+ switching cycles (vs. ~100k for relays), sub-microsecond switching (300ns tOFF vs. 10ms relay settle), zero contact bounce, and no coil power draw. Its 2.5Ω RON and 5nA off-leakage ensure minimal signal degradation in precision measurements, while the 16-pin DIP footprint allows direct retrofit into existing relay-based fixtures without PCB redesign.
MAX4661EPE 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:
- Through Hole
- Supplier Device Package:
- 16-PDIP
MAX4661EPE FAQ
1.How can I place an order for MAX4661EPE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4661EPE 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 MAX4661EPE reliable?
The price and inventory of MAX4661EPE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4661EPE is usually 5 days.
3.What payment methods are accepted for MAX4661EPE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4661EPE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4661EPE?
MAX4661EPE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4661EPE 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 MAX4661EPE?
For technical support, including MAX4661EPE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4661EPE requirements.
6.How does Aetrix verify that MAX4661EPE is sourced from the original manufacturer or authorized distributors?
All MAX4661EPE 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 MAX4661EPE meets industry standards.
7.What is the process for return or replacement of MAX4661EPE?
All MAX4661EPE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4661EPE, 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 MAX4661EPE part is unused and in its original packaging.
Return procedure for MAX4661EPE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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