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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:4,055
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Product details
Overview
The MAX4531EWP+ from Maxim Integrated is a dual 4-channel CMOS analog multiplexer configured for rail-to-rail signal routing in industrial and test equipment. It operates from ±2V to ±6V dual supplies or +2V to +12V single supply, features 150Ω max on-resistance (75Ω at ±5V), 1nA max off-leakage at +25°C, and 150ns enable turn-on time - enabling precise low-power signal selection in battery-operated data acquisition systems.
For engineers reviewing the MAX4531EWP+ datasheet, MAX4531EWP+ pinout, MAX4531EWP+ application, or MAX4531EWP+ equivalent, this device supports TTL/CMOS-compatible digital control, address latching, complementary enable inputs, and break-before-make switching - critical for reliable channel isolation in ATE and avionics signal routing.
Technical Context
The MAX4531EWP+ integrates two independent 4-channel analog multiplexers (COMA/NO0A–NO3A and COMB/NO0B–NO3B) with shared address latching (ADDA, ADDB, LE) and dual enable logic (EN1, EN2). Its CMOS switch architecture uses V+ and V− to define analog rail limits, with internal logic-level translators isolating digital control from analog paths.
Each multiplexer section supports bidirectional rail-to-rail signal handling, exhibits matched on-resistance (≤8Ω between channels), and delivers >−65dB off-isolation at 1MHz. The device implements break-before-make timing (10ns min at +25°C) and guarantees <1.5pC charge injection - essential for minimizing transient errors in precision sampling circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±2V to ±6V dual or +2V to +12V single - supports wide input signal swing without level-shifting circuitry |
| On-Resistance (RON) | 75Ω typ at ±5V, 150Ω max at +5V - ensures minimal gain error and voltage drop in sensor/ADC front-ends |
| On-Resistance Matching | ≤8Ω max between channels - enables accurate differential signal routing and ratio-metric measurements |
| Off-Leakage Current | 1nA max at TA = +25°C - preserves signal integrity in high-impedance sensor interfaces and sample-hold circuits |
| Enable Turn-On Time | 150ns max at ±4.5V - allows fast channel switching in real-time test instrumentation and multiplexed DAQ |
| Rail-to-Rail Signal Handling | Full analog range from V− to V+ - eliminates clipping when interfacing with op-amps or DACs operating near supply rails |
| ESD Protection | >2kV per Method 3015.7 - enhances robustness in handling-sensitive lab and field-deployed equipment |
Pinout & Package
MAX4531EWP+ is housed in a 20-pin wide SO (Small Outline) package with 0.300" body width and standard 0.050" lead pitch. Pin 1 is marked by a beveled corner; pin numbering follows counterclockwise convention from top-left.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive analog/digital supply | Drives internal CMOS switches and logic; sets upper analog rail limit; must be ≥|V−| for proper operation |
| NO0A–NO3A | Analog inputs/outputs for mux A | Bidirectional terminals; interchangeable as source or sink; routed to COMA when selected |
| COMA | Common terminal for mux A | Primary signal path node for mux A; connects to one NOxA channel per address state |
| NO0B–NO3B | Analog inputs/outputs for mux B | Independent of mux A; supports simultaneous dual-path routing without crosstalk penalty |
| COMB | Common terminal for mux B | Signal hub for second 4-channel path; electrically isolated from COMA |
| EN1 / EN2 | Complementary enable inputs | Both must be asserted (EN1=low, EN2=high) to activate switching; provides hardware gating safety |
| ADDA / ADDB | Address bits A and B | Select one of four channels per mux; latched on rising edge of LE; no external clock required |
| LE | Address latch enable | Transfers ADDA/ADDB state into internal register; decouples address setup from switching timing |
| GND | Digital ground reference | Return for logic circuitry only; analog signals referenced to V+ and V−, not GND |
| V− | Negative analog supply | Sets lower analog rail; connect to GND for single-supply operation; reverse ESD diodes tied here |
Key Features
| Feature | Design Value |
|---|---|
| PIN-Compatible with 74HC4352 | Direct drop-in replacement for legacy TTL/CMOS mux designs - no PCB redesign needed |
| Rail-to-Rail® Signal Handling | Supports full-swing analog signals from V− to V+, eliminating need for external biasing in ±5V or +5V systems |
| Address Latching with LE Input | Eliminates requirement for stable address during switching; simplifies microcontroller GPIO timing constraints |
| Break-Before-Make Switching | Guarantees >10ns isolation between channel transitions - prevents momentary shorts in power-sensitive circuits |
| TTL/CMOS-Compatible Logic Inputs | 0.8V/2.4V thresholds ensure interoperability with both 3.3V and 5V controllers without level shifters |
| <1µW Quiescent Power | Enables always-on signal routing in battery-powered instruments with negligible impact on runtime |
Applications
| Automated Test Equipment (ATE) | Data Acquisition Systems |
|---|---|
|
Use Scenario: Multiplexing multiple sensor outputs to a shared ADC in modular rack-mounted test platforms. IC Role / Device Role / Timing Role: Dual 4-channel analog mux providing synchronized, isolated signal routing under microcontroller address control. Use Value: Enables 8:1 analog input scaling with ≤8Ω RON matching - preserving channel-to-channel gain consistency across temperature. |
Use Scenario: Selecting between thermocouple, RTD, and voltage inputs in portable environmental monitoring units. IC Role / Device Role / Timing Role: Low-leakage (1nA), rail-to-rail switch supporting ±10V sensor ranges and battery operation down to +2.7V. Use Value: Delivers <1.5pC charge injection and 150ns tON - minimizing settling error and enabling 100ksps multiplexed sampling. |
| Avionics Signal Routing | Audio-Signal Switching |
|
Use Scenario: Reconfiguring flight control sensor feedback paths during system self-test or redundancy switchover. IC Role / Device Role / Timing Role: High-reliability analog switch with >2kV ESD protection and −40°C to +85°C operation. Use Value: Maintains <−65dB off-isolation at 1MHz - preventing cross-coupling between critical navigation and telemetry signals. |
Use Scenario: Routing line-level audio sources to amplifiers or codecs in professional mixing consoles. IC Role / Device Role / Timing Role: Bidirectional, low-distortion (THD <0.025%) analog switch with flat 75Ω on-resistance. Use Value: Ensures consistent impedance matching and <−92dB crosstalk - preserving stereo separation and dynamic range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4531CWP+ | 0°C to +70°C temperature range; identical pinout, electrical specs, and package | Not rated for extended industrial or automotive ambient conditions | Select MAX4531CWP+ only for commercial-grade applications where ambient stays within 0–70°C |
| ADG708BRUZ | 8-channel single-ended mux (not dual 4-channel); 4.5Ω RON; SPI interface instead of parallel address/control | Lacks address latching and complementary enable logic; requires serial interface overhead | Choose ADG708BRUZ when board space is constrained and SPI control is already present in system architecture |
Compared with MAX4531CWP+, the MAX4531EWP+ extends operational reliability to −40°C to +85°C while retaining identical switching performance and layout compatibility; versus ADG708BRUZ, it offers parallel address control and dual independent mux sections - reducing firmware complexity and enabling simultaneous dual-path routing.
Availability
MAX4531EWP+ is available at Aetrix Electronics and suitable for automated test equipment, industrial data acquisition, and avionics signal routing requiring stable component supply across extended temperature environments.
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 MAX4531EWP+ belongs to Maxim's low-voltage CMOS analog switch family, engineered for rail-to-rail signal integrity, low leakage, and robust operation in battery-powered and high-reliability systems.
FAQ
What is the operating temperature range of the MAX4531EWP+?
The MAX4531EWP+ is specified for −40°C to +85°C operation, making it suitable for industrial and extended-temperature applications where commercial-grade variants like MAX4531CWP+ would fail. This rating is validated across all electrical parameters including on-resistance, leakage current, and switching times - ensuring consistent performance in harsh environments.
Does the MAX4531EWP+ support single-supply operation?
Yes, the MAX4531EWP+ supports single-supply operation from +2V to +12V when V− is connected to GND. At +5V supply, it delivers 150Ω max on-resistance and maintains TTL/CMOS-compatible logic thresholds. Rail-to-rail signal handling remains fully functional, allowing direct interfacing with sensors and ADCs without level-shifting circuitry.
How does the address latching feature of the MAX4531EWP+ simplify microcontroller interfacing?
The MAX4531EWP+ uses the LE (Latch Enable) input to capture ADDA/ADDB states independently of switching timing. This means the microcontroller can update address lines asynchronously and assert LE only when ready - eliminating setup/hold timing constraints and reducing GPIO resource burden compared to non-latching muxes like the 74HC4051.
What is the significance of the complementary enable inputs (EN1 and EN2) on the MAX4531EWP+?
The MAX4531EWP+ requires EN1 = low and EN2 = high to activate switching - a deliberate safety feature that prevents accidental channel connection during power-up or reset. This dual-enable scheme eliminates risk of shorted paths during transient states and is especially valuable in fault-tolerant systems such as avionics and medical instrumentation.
Can the MAX4531EWP+ handle bipolar analog signals?
Yes, the MAX4531EWP+ supports true bipolar signal routing when operated from dual supplies (e.g., ±5V). Its rail-to-rail architecture allows analog signals from V− to V+ - meaning −4.5V to +4.5V signals pass unattenuated with minimal distortion. This capability is confirmed in the datasheet's Typical Operating Characteristics, including THD <0.025% at 1MHz.
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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