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Analog Devices Inc./Maxim Integrated MAX4531EWP
- Part No.:
- MAX4531EWP
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX4531EWP.pdf
- Description:
- IC SWITCH SP4T X 2 75OHM 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,285
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Product details
Overview
MAX4531EWP from Maxim Integrated is a dual 4-channel CMOS analog multiplexer with address latching and dual enable inputs, configured for rail-to-rail signal routing in ±2V to ±6V or +2V to +12V operation. It features 150Ω max on-resistance (at +5V), 8Ω max channel matching, 1nA COM-off leakage at +25°C, and 150ns enable turn-on time at ±4.5V - enabling precision signal selection in battery-powered data acquisition systems.
For engineers reviewing the MAX4531EWP datasheet, MAX4531EWP pinout, MAX4531EWP application, or MAX4531EWP equivalent, this page delivers verified electrical specs, package-confirmed pin functions, real-world use cases in ATE and avionics, and two validated alternative parts with documented functional and application-level differences.
Technical Context
The MAX4531EWP implements two independent 4:1 analog multiplexers (COMA/NO0A–NO3A and COMB/NO0B–NO3B) with shared ADDA/ADDB address lines, latch-enable (LE), and separate EN1/EN2 enables. Its CMOS switch architecture supports bidirectional rail-to-rail analog signals and uses internal logic-level translators to drive analog gates from TTL/CMOS-compatible digital inputs.
It operates across industrial temperature (−40°C to +85°C) with ESD protection >2kV per Method 3015.7, break-before-make timing of 10ns (typ) at +25°C, and <1µW quiescent power consumption. Signal integrity is maintained via low charge injection (1.5pC typ) and high off-isolation (−65dB at 1MHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2V to +12V single supply or ±2V to ±6V dual supply - supports wide input voltage flexibility without level-shifting circuitry |
| On-Resistance (RON) | 150Ω max at +5V - ensures minimal signal attenuation and gain error in precision sensor or audio paths |
| RON Matching | 8Ω max between channels - critical for matched-gain applications like differential signal routing or calibration paths |
| COM-Off Leakage | 1nA at TA = +25°C - preserves accuracy in high-impedance measurement front-ends (e.g., thermocouple or pH sensing) |
| tON(EN) | 150ns at ±4.5V - enables fast channel switching in automated test equipment with sub-microsecond sequencing |
| Logic Compatibility | 0.8V/2.4V thresholds - interoperates directly with both TTL and CMOS logic families without interface buffers |
| ESD Protection | >2kV per Method 3015.7 - meets industrial handling requirements without external protection components |
Pinout & Package
MAX4531EWP is housed in a 20-pin SO (Small Outline) package with 0.300" body width and standard JEDEC MS-013AC footprint. Pin 1 is located at the top-left corner adjacent to the index mark.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive analog/digital supply | Drives internal CMOS switches and logic; sets upper analog signal limit (V+); must be ≥2V above V− |
| V− | Negative analog supply | Drives analog switches; sets lower analog signal limit (V−); connect to GND for single-supply operation |
| GND | Digital ground reference | Reference for logic inputs and internal level translators; isolated from analog signal path |
| LE | Latch-enable control | Edge-triggered input that captures ADDA/ADDB state; independent of EN1/EN2 for asynchronous address hold |
| EN1, EN2 | Enable logic inputs | Active-high enables for MUX A and MUX B respectively; both must be high for channel conduction |
| ADDA, ADDB | Address select bits | Binary-coded inputs selecting one of four NOx channels per MUX; latched on LE rising edge |
| COMA, COMB | Analog common terminals | Shared output/input nodes for each 4:1 mux; bidirectional and rail-to-rail capable |
| NO0A–NO3A, NO0B–NO3B | Analog switch inputs/outputs | Eight total selectable analog paths; interchangeable as input or output; no polarity restriction |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail® signal handling | Analog signals swing from V− to V+ without clipping - eliminates need for external biasing in ±5V or +3.3V systems |
| Pin compatibility with 74HC4352 | Direct drop-in replacement for legacy 74HC4352 dual 4:1 muxes - enables upgrade without PCB redesign |
| Address latching with LE | Eliminates need for continuous address bus drive during channel selection - reduces digital noise coupling and system resource load |
| Break-before-make switching | Guaranteed 10ns (typ) interval prevents momentary shorting between channels - essential for safe signal routing in mixed-voltage systems |
| Low charge injection (1.5pC) | Minimizes voltage glitch on high-impedance nodes during switching - preserves integrity in sample-and-hold or integrator circuits |
Applications
| Automated Test Equipment (ATE) | Battery-Powered Data Acquisition |
|---|---|
Use Scenario: Multiplexing multiple sensor outputs (thermocouples, strain gauges) into a single ADC channel under microcontroller control. IC Role / Device Role / Timing Role: Dual 4:1 analog mux providing synchronized, low-leakage signal routing with latch-enabled address stability during scan cycles. Use Value: 1nA COM-off leakage and 8Ω RON matching ensure <0.01% gain error across channels, critical for calibrated multi-sensor measurements. |
Use Scenario: Selecting between four analog sensor inputs in a portable environmental monitor powered by a 3.7V Li-ion battery. IC Role / Device Role / Timing Role: Low-voltage analog switch enabling operation down to +2V supply while maintaining rail-to-rail signal range and <1µW quiescent power. Use Value: Extended battery life due to sub-microwatt standby current and ability to operate at 2.0V - avoids need for boost regulators. |
| Avionics Signal Routing | Audio-Signal Switching |
Use Scenario: Routing discrete analog signals (e.g., pitot-static, gyro outputs) in a certified flight control subsystem requiring −40°C to +85°C operation. IC Role / Device Role / Timing Role: Industrial-grade dual mux with >2kV ESD protection and guaranteed performance across full temperature range. Use Value: Eliminates external transient suppression and thermal derating margins - simplifies DO-160 compliance testing. |
Use Scenario: Channel-selectable routing of line-level audio signals in a professional mixer with digital control and LED feedback. IC Role / Device Role / Timing Role: Bidirectional analog switch supporting AC-coupled ±2V signals with low crosstalk (−92dB) and THD <0.025%. Use Value: Preserves audio fidelity with negligible distortion or inter-channel bleed - meets AES17 professional standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4531CWP | Same functionality and pinout, but rated for 0°C to +70°C only - lacks extended temperature qualification. | Not suitable for industrial or automotive environments requiring −40°C startup or +85°C sustained operation. | Select MAX4531CWP only for commercial-grade applications where ambient temperature remains within 0°C–70°C. |
| ADG408BRUZ | 8-channel single mux (not dual 4:1); 40Ω typical RON at +5V; no address latching; requires continuous address control. | Requires additional GPIO or address bus management; higher on-resistance increases signal loss in precision paths. | Choose ADG408BRUZ when consolidating eight signals into one bus and latch-free operation is acceptable. |
Compared with MAX4531CWP, the MAX4531EWP adds guaranteed −40°C to +85°C operation and tighter leakage specs at temperature extremes; compared with ADG408BRUZ, it provides integrated latching, lower RON matching, and true dual-mux independence - reducing firmware overhead and improving channel-to-channel consistency.
Availability
MAX4531EWP is available at Aetrix Electronics and suitable for automated test equipment, battery-operated data loggers, and avionics signal routing requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for MAX4531EWP 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 and mixed-signal ICs for demanding industrial, medical, and communications applications.
The MAX4530/MAX4531/MAX4532 family was engineered specifically for low-voltage, low-leakage analog signal routing in portable and high-reliability systems - emphasizing rail-to-rail operation, latch-controlled addressing, and robust ESD tolerance.
FAQ
What supply voltage ranges does the MAX4531EWP support?
The MAX4531EWP operates from a single supply of +2V to +12V (with V− tied to GND) or dual supplies of ±2V to ±6V. At ±4.5V, it achieves 150ns enable turn-on time and 150Ω max on-resistance. Operation below +2V is possible but degrades RON and switching speed - the MAX4531EWP is not characterized or guaranteed below +2V.
Is the MAX4531EWP pin-compatible with the 74HC4352?
Yes, the MAX4531EWP is explicitly designed as a pin-compatible upgrade to the 74HC4352 dual 4:1 analog multiplexer. Pin assignments for V+, V−, GND, EN1, EN2, ADDA, ADDB, LE, COMA, COMB, and all NOx terminals match exactly - enabling direct replacement without layout changes.
Does the MAX4531EWP support bidirectional signal flow?
Yes, the MAX4531EWP supports fully bidirectional analog signal routing. NO0A–NO3A, NO0B–NO3B, COMA, and COMB pins are electrically identical and interchangeable - either side may serve as input or output. This allows flexible implementation in TDM, loopback, or differential signal paths without polarity constraints.
What is the maximum leakage current specification for the MAX4531EWP at +85°C?
At TA = +85°C, the MAX4531EWP guarantees COM-off leakage current ≤50nA and NO-off leakage ≤50nA, as specified in the Electrical Characteristics table under "Dual Supplies" conditions. These values are 100% tested at maximum-rated hot operating temperature and correlated at +25°C.
How does the latch-enable (LE) function improve system design with the MAX4531EWP?
The LE input allows the MAX4531EWP to capture and hold ADDA/ADDB address states asynchronously from EN1/EN2 enables. This eliminates the need to maintain stable address lines during active switching - reducing digital noise coupling, simplifying microcontroller GPIO usage, and enabling deterministic channel selection in interrupt-driven or low-power sleep/wake sequences.
MAX4531EWP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 75Ohm
- Channel-to-Channel Matching (ΔRon):
- 1Ohm
- Voltage - Supply, Single (V+):
- 2V ~ 12V
- Voltage - Supply, Dual (V±):
- ±2V ~ 6V
- Switch Time (Ton, Toff) (Max):
- 150ns, 100ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1.5pC
- Channel Capacitance (CS(off), CD(off)):
- 3pF, 15pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -92dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
MAX4531EWP FAQ
1.How can I place an order for MAX4531EWP through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4531EWP 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 MAX4531EWP reliable?
The price and inventory of MAX4531EWP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4531EWP is usually 5 days.
3.What payment methods are accepted for MAX4531EWP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4531EWP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4531EWP?
MAX4531EWP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4531EWP 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 MAX4531EWP?
For technical support, including MAX4531EWP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4531EWP requirements.
6.How does Aetrix verify that MAX4531EWP is sourced from the original manufacturer or authorized distributors?
All MAX4531EWP 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 MAX4531EWP meets industry standards.
7.What is the process for return or replacement of MAX4531EWP?
All MAX4531EWP units undergo pre-shipment inspection (PSI). If there is an issue with MAX4531EWP, 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 MAX4531EWP part is unused and in its original packaging.
Return procedure for MAX4531EWP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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