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Analog Devices Inc./Maxim Integrated MAX4661CPE+
- Part No.:
- MAX4661CPE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX4661CPE+.pdf
- Description:
- IC SWITCH SPST-NCX4 2.5OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,108
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Product details
Overview
MAX4661CPE+ from Maxim Integrated is a quad SPST analog switch with four normally closed (NC) channels, designed for rail-to-rail signal routing in precision analog systems. 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 MAX4661CPE+ datasheet, MAX4661CPE+ pinout, MAX4661CPE+ application, or MAX4661CPE+ equivalent, key selection criteria include guaranteed NC configuration, single/dual supply flexibility (+4.5V to +36V or ±4.5V to ±20V), TTL/CMOS-compatible logic inputs, and ESD robustness (>2kV per Method 3015.7).
Technical Context
The MAX4661CPE+ implements CMOS-based transmission-gate architecture with independent channel control, supporting true rail-to-rail analog signal handling across its full ±10V input range. Its break-before-make behavior is absent-only the MAX4663 variant guarantees it-making the MAX4661CPE+ suitable for static switching where simultaneous conduction must be avoided.
All four switches share a common V+, V−, VL, and GND, with dedicated INx/COMx/NCx terminals per channel. On-resistance flatness (0.5Ω max) and tight matching (0.5Ω max ΔRON) are specified over −10V to +10V signal swing and 0°C to +70°C ambient, ensuring consistent gain and minimal crosstalk in multiplexed signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 2.5Ω max - ensures minimal voltage drop and signal attenuation in low-level analog paths |
| RON Match Between Channels | 0.5Ω max - enables precise channel-to-channel gain tracking in instrumentation and ADC front-ends |
| RON Flatness | 0.5Ω max over ±10V - maintains linear transfer function across full analog input range |
| Off-Leakage Current | 5nA max at +85°C - preserves accuracy in high-impedance sample-and-hold and sensor interfaces |
| Supply Range | +4.5V to +36V single or ±4.5V to ±20V dual - supports industrial, avionics, and wide-voltage test systems |
| Logic Compatibility | TTL/CMOS inputs with VL pin - decouples logic threshold from analog supply, simplifying mixed-supply designs |
| ESD Protection | >2kV per Method 3015.7 - enhances reliability in handling-sensitive lab and field-deployed equipment |
Pinout & Package
MAX4661CPE+ uses a 16-pin plastic DIP package (0.300" width), through-hole mountable with standard 0.1" pitch. Pin 1 is top-left corner, notch-up orientation.
| 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 INx = 0, open when INx = 1 |
| 4 | V− | Negative analog supply; tie to GND for single-supply operation |
| 5 | GND | Ground reference for analog and logic sections |
| 12 | VL | Separate logic supply input; sets input threshold independently of V+/V− |
| 13 | V+ | Positive analog supply; defines upper rail for rail-to-rail signal handling |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPST, Normally Closed (NC) topology | Provides fail-safe closed-path default state-critical for safety-critical signal monitoring and power-on continuity checks |
| Rail-to-rail analog signal handling | Supports full-swing signals from V− to V+ without clipping, enabling direct interface with op-amps and ADC drivers |
| Guaranteed RON match and flatness | Enables multi-channel calibration-free multiplexing in precision data acquisition and automatic test equipment |
| Independent logic supply (VL) pin | Allows TTL/CMOS logic interfacing even when V+ is >5V, eliminating level-shifters in mixed-voltage systems |
| Low charge injection (20pC typ) | Minimizes voltage glitch in sample-and-hold circuits and high-resolution ADC sampling networks |
Applications
| Reed Relay Replacement | Test Equipment Signal Routing |
|---|---|
Use Scenario: Replacing electromechanical relays in automated calibration fixtures where cycle life and speed limit mechanical solutions. IC Role / Device Role / Timing Role: Quad NC analog switch providing low-RON, low-leakage signal path selection with no moving parts. Use Value: 100M+ cycle lifetime, 300ns typical turn-off time, and 2.5Ω on-resistance reduce system drift and improve test throughput vs. relays. |
Use Scenario: Channel multiplexing in benchtop multimeters and ATE systems requiring sub-µV offset stability and minimal crosstalk. IC Role / Device Role / Timing Role: Precision analog switch front-end routing signals to shared ADC or amplifier stages. Use Value: 0.5Ω RON match and 5nA off-leakage preserve measurement integrity across temperature and signal range. |
| Avionics Sensor Interface | Audio-Signal Routing |
Use Scenario: Selecting between redundant pressure or temperature sensors in flight control subsystems under DO-160 environmental stress. IC Role / Device Role / Timing Role: Fail-safe NC switch ensuring default sensor connection during power-up or logic fault. Use Value: Guaranteed NC behavior, −40°C to +85°C extended temp grade variants available, and >2kV ESD withstand support harsh avionics environments. |
Use Scenario: Input source selection in professional audio mixers where THD+N and channel separation are critical. IC Role / Device Role / Timing Role: Low-distortion analog switch routing line/mic-level signals before amplification or ADC conversion. Use Value: 2.5Ω RON and rail-to-rail capability prevent clipping and preserve dynamic range across ±10V audio swing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4662CPE+ | Quad SPST, normally open (NO) configuration instead of NC; identical RON, leakage, and supply specs | Suitable where default-open state is required (e.g., signal gating during initialization) | Select MAX4662CPE+ only if fail-open behavior is mandatory; pinout and footprint are identical |
| ADG1414BNZ | Quad SPST, NO, 1.8Ω max RON, but requires dual supply only; no VL pin; −40°C to +125°C rating | Better RON and wider temp range, but lacks single-supply operation and logic supply independence | Choose ADG1414BNZ for ultra-low RON in high-temp industrial systems where VL decoupling is unnecessary |
Compared with MAX4661CPE+, MAX4662CPE+ offers identical performance in a complementary NC/NO pairing ideal for design reuse, while ADG1414BNZ trades logic flexibility for lower on-resistance and extended temperature range-requiring supply and layout re-evaluation.
Availability
MAX4661CPE+ is available at Aetrix Electronics and suitable for reed relay replacement, test equipment signal routing, and avionics sensor interface applications requiring stable component supply, long-term obsolescence management, and traceable sourcing.
Supply support for MAX4661CPE+ 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 high-performance analog and mixed-signal ICs for industrial, automotive, communications, and computing markets.
The MAX4661CPE+ belongs to Maxim's precision analog switch family, engineered for low-distortion, rail-to-rail signal routing in automatic test equipment, data acquisition, and safety-critical sensor interfaces.
FAQ
What is the default switch state of the MAX4661CPE+?
The MAX4661CPE+ features four normally closed (NC) SPST switches. When all INx pins are at logic low (≤0.8V), the COMx–NCx paths are conductive. At logic high (≥2.4V), those paths open. This NC default ensures signal continuity during power-up or control loss-critical in safety-aware systems. The MAX4661CPE+ does not support break-before-make; that feature is exclusive to the MAX4663 variant.
Can the MAX4661CPE+ operate from a single 5V supply?
Yes, the MAX4661CPE+ supports single-supply operation from +4.5V to +36V. With V− tied to GND and V+ = +5V, it handles rail-to-rail analog signals from 0V to +5V. Logic inputs remain TTL/CMOS-compatible via the VL pin, which may be tied to +5V or another logic rail. Note: RON increases slightly at low V+ (e.g., 4Ω typ at +5V), per the single-supply electrical characteristics table in the MAX4661CPE+ datasheet.
Does the MAX4661CPE+ require external protection diodes for overvoltage?
No-internal protection diodes clamp signals exceeding V+ or V−, but external series diodes (e.g., Figure 1 in the MAX4661CPE+ datasheet) are recommended if supply sequencing cannot guarantee V+ powers first, then V−, then logic. Without sequencing control, external diodes prevent latch-up and permanent damage during hot insertion or transient events, though they reduce usable signal range by ~0.7V.
How does the MAX4661CPE+ compare to mechanical relays in test equipment?
The MAX4661CPE+ replaces reed relays by delivering 2.5Ω max on-resistance, 5nA max off-leakage at +85°C, and 300ns typical turn-off time-enabling faster, more repeatable switching than relays. It eliminates contact wear, bounce, and coil drive circuitry, reducing board space and power. Unlike relays, the MAX4661CPE+ supports rail-to-rail signals and integrates seamlessly into digital control architectures without isolation transformers.
Is the MAX4661CPE+ pin-compatible with other variants in the MAX466x family?
Yes-the MAX4661CPE+, MAX4662CPE+, and MAX4663CPE+ share identical 16-pin DIP pinouts and footprints. Only the internal switch configuration differs: MAX4661CPE+ is NC-only, MAX4662CPE+ is NO-only, and MAX4663CPE+ combines two NC + two NO with guaranteed break-before-make. This allows hardware reuse across designs requiring different default states or sequencing behavior.
MAX4661CPE+ 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:
- Through Hole
- Supplier Device Package:
- 16-PDIP
MAX4661CPE+ FAQ
1.How can I place an order for MAX4661CPE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4661CPE+ 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 MAX4661CPE+ reliable?
The price and inventory of MAX4661CPE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4661CPE+ is usually 5 days.
3.What payment methods are accepted for MAX4661CPE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4661CPE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4661CPE+?
MAX4661CPE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4661CPE+ 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 MAX4661CPE+?
For technical support, including MAX4661CPE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4661CPE+ requirements.
6.How does Aetrix verify that MAX4661CPE+ is sourced from the original manufacturer or authorized distributors?
All MAX4661CPE+ 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 MAX4661CPE+ meets industry standards.
7.What is the process for return or replacement of MAX4661CPE+?
All MAX4661CPE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4661CPE+, 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 MAX4661CPE+ part is unused and in its original packaging.
Return procedure for MAX4661CPE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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