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Analog Devices Inc./Maxim Integrated MAX4581LEEE+
- Part No.:
- MAX4581LEEE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
MAX4581LEEE+.pdf
- Description:
- IC MUX 8:1 80OHM 16QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,012
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Product details
Overview
The MAX4581LEEE+ from Maxim Integrated is an 8-channel CMOS analog multiplexer operating from a single +2V to +12V supply, featuring rail-to-rail signal handling, 80Ω max on-resistance at +12V, 4Ω channel-to-channel on-resistance match, and 2nA off-leakage at +25°C - used for precision audio/video routing and data-acquisition front-ends.
For engineers reviewing the MAX4581LEEE+ datasheet, MAX4581LEEE+ pinout, MAX4581LEEE+ application, or MAX4581LEEE+ equivalent, key selection criteria include guaranteed on-resistance flatness (12Ω), break-before-make timing (20ns), logic-compatible thresholds (0.8V/2.0V), low charge injection (0.5pC), and QSOP-16 package compatibility with 74HC4051/MAX4051.
Technical Context
The MAX4581LEEE+ implements a single-ended 8:1 analog multiplexer architecture with address-decoded CMOS transmission gates, driven by TTL/CMOS-compatible digital inputs (A/B/C/ENABLE) referenced to VCC. Its internal logic-level translators isolate digital control from analog paths while enabling rail-to-rail operation.
All eight analog inputs (X0–X7) share one common output (X), with bidirectional signal flow supported. Switching is governed by a 3-bit binary address (A, B, C) and active-low ENABLE; break-before-make timing prevents signal shorting during channel transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2V to +12V single supply - supports battery-powered and industrial 3.3V/5V/12V systems without level-shifting. |
| On-Resistance (max) | 80Ω at +12V - ensures minimal signal attenuation and gain error in precision sensor or audio paths. |
| On-Resistance Match | 4Ω between channels - critical for multi-channel instrumentation where channel-to-channel gain consistency is required. |
| Off-Leakage Current | ±2nA at +25°C - preserves high-impedance sensor node integrity and reduces DC offset drift in µA-level circuits. |
| Logic Thresholds | VIL = 0.8V, VIH = 2.0V - guarantees reliable interface with 3.3V microcontrollers and legacy 5V TTL logic without external biasing. |
| Charge Injection | 0.5pC - limits voltage glitch on high-impedance sample-hold capacitors, enabling <1LSB error in 12-bit+ data acquisition. |
| Enable Turn-On Time | 200ns max - supports multiplexed ADC sampling rates up to ~2.5MHz with deterministic timing. |
| Off-Isolation | -90dB at 1MHz - suppresses crosstalk between inactive channels in dense analog routing applications. |
Pinout & Package
Package: 16-pin QSOP (E16-4), 4.4mm × 3.9mm body, 1.0mm height, 0.635mm pitch. Exposed pad not present (unlike TQFN variant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 12–15 | Analog Inputs X0–X7 | Bidirectional switch terminals - accept rail-to-rail analog signals; no ground reference required. |
| 3 | Analog Output X | Common output node shared across all 8 channels; fully interchangeable as input or output. |
| 6 | Enable (active-low) | Global enable/disable - tie low for normal operation; high forces all switches open (high-Z state). |
| 7, 8 | GND | Digital ground reference only - analog signals float between VCC and GND; no analog ground connection needed. |
| 9 | Address C | MSB of 3-bit channel select (CBA); synchronous with ENABLE for glitch-free addressing. |
| 10 | Address B | Mid-bit of channel select; combined with A and C to decode X0–X7 per truth table. |
| 11 | Address A | LSB of channel select; determines odd/even channel selection when C and B are fixed. |
| 16 | VCC | Single positive supply - powers both analog switches and digital logic; requires 0.1µF bypass to GND. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports full VCC-to-GND swing without clipping - enables direct interfacing with op-amps, sensors, and DACs. |
| Guaranteed 4Ω RON match | Ensures consistent gain scaling across channels - essential for multi-sensor calibration and differential measurements. |
| 2nA off-leakage at +25°C | Maintains accuracy in high-Z medical ECG or pH probe front-ends where leakage-induced offset dominates error budget. |
| Pin compatibility with 74HC4051/MAX4051 | Enables drop-in replacement in existing designs - no PCB rework required for performance upgrades. |
| Low 0.5pC charge injection | Minimizes settling error in sample-and-hold circuits - critical for high-resolution SAR ADC drivers. |
| Tiny QSOP-16 footprint | Reduces board area vs. SOIC-16 by ~30% - ideal for space-constrained portable test equipment and modular I/O systems. |
Applications
| Audio Signal Routing | Data-Acquisition Front-End |
|---|---|
Use Scenario: Selecting between 8 microphone preamp outputs in a conference system before ADC conversion. IC Role / Device Role / Timing Role: 8:1 analog multiplexer providing low-distortion, low-crosstalk signal path selection under microcontroller control. Use Value: -96dB crosstalk and 0.02% THD preserve voice clarity; 20ns break-before-make prevents audible switching pops. | Use Scenario: Scanning 8 thermocouple or RTD sensor inputs into a single precision instrumentation amplifier and ADC. IC Role / Device Role / Timing Role: High-impedance, low-leakage analog switch enabling accurate cold-junction compensation and ratiometric measurement. Use Value: 2nA off-leakage avoids µV-level offset errors; 4Ω RON match ensures uniform gain across all sensor channels. |
| DSL Line Interface | Industrial PLC Analog I/O Module |
Use Scenario: Multiplexing test signals (e.g., line diagnostics, loopback, tone injection) onto DSL subscriber lines. IC Role / Device Role / Timing Role: Robust analog switch rated for ±12V transients and compliant with ITU-T G.992.x line driver requirements. Use Value: +12V absolute max rating and -90dB off-isolation prevent interference between diagnostic and live traffic paths. | Use Scenario: Configurable analog input bank accepting 4–20mA, ±10V, or thermocouple signals via software-selectable front-end paths. IC Role / Device Role / Timing Role: Precision multiplexer enabling flexible signal conditioning topology without hardware changes. Use Value: +2V to +12V supply range supports both 3.3V microcontroller logic and 24V industrial power domains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4051ACPE+ | Higher 100Ω max RON, wider -40°C to +85°C temp range, same QSOP-16 pinout. | Lower bandwidth and higher distortion limit use in audio; better suited for general-purpose industrial muxing. | Select MAX4051ACPE+ when cost sensitivity outweighs need for 80Ω RON and 0.5pC charge injection. |
| ADG1408BRUZ | 40V supply capable, 4.7Ω RON, but requires dual ±15V or single +30V supply; different pinout (TSSOP-16). | Not pin-compatible; designed for high-voltage test equipment, not low-voltage portable systems. | Choose ADG1408BRUZ only when >12V analog signal swing or ultra-low RON is mandatory - not a drop-in replacement. |
Compared with MAX4051ACPE+, the MAX4581LEEE+ delivers tighter RON matching and lower charge injection for high-fidelity signal routing; versus ADG1408BRUZ, it trades voltage range for lower power, smaller size, and true 3.3V logic compatibility.
Availability
MAX4581LEEE+ is available at Aetrix Electronics and suitable for audio routing, data-acquisition systems, and DSL modem design requiring stable component supply and long-term production continuity.
Supply support for MAX4581LEEE+ 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, mixed-signal, and power-management ICs for industrial, communications, and computing applications.
The MAX4581L series targets low-voltage, high-fidelity analog signal routing - optimized for systems needing rail-to-rail operation, low leakage, and logic-compatible control without external level shifters.
FAQ
What is the maximum supply voltage rating for the MAX4581LEEE+?
The MAX4581LEEE+ has an absolute maximum supply voltage of +13V, with recommended continuous operation from +2V to +12V. Operation beyond +12.6V risks exceeding absolute maximum ratings and may cause permanent damage. The device's internal ESD diodes clamp voltages above VCC or below GND, so proper sequencing (VCC first) is essential.
Does the MAX4581LEEE+ support bidirectional analog signal flow?
Yes, the MAX4581LEEE+ supports fully bidirectional analog signal flow - any pin labeled X0–X7 or X can serve as input or output. This is confirmed in the datasheet's "Detailed Description" section, which states "input and output pins are identical and interchangeable" and that signals pass equally well in both directions, making it suitable for multiplexed transceiver interfaces.
Is the MAX4581LEEE+ pin-compatible with the 74HC4051?
Yes, the MAX4581LEEE+ is explicitly pin-compatible with the industry-standard 74HC4051 in QSOP-16 packaging, as stated in the "Features" and "Pin Nomenclature" sections. Pin functions (X0–X7, X, A/B/C, ENABLE, VCC, GND) align directly - enabling drop-in replacement without layout changes, provided the supply and logic levels meet MAX4581L's +2V to +12V and 0.8V/2.0V thresholds.
What is the typical charge injection value for the MAX4581LEEE+ and why does it matter?
The MAX4581LEEE+ has a typical charge injection of 0.5pC, guaranteed by design. This parameter matters because injected charge causes voltage glitches on high-impedance nodes (e.g., sample-and-hold capacitors), leading to settling errors and reduced effective resolution in precision ADC systems - especially critical in 12-bit+ data acquisition where 0.5pC limits error to <1 LSB with 1nF hold capacitors.
Can the MAX4581LEEE+ operate from a 3.3V supply while maintaining TTL/CMOS logic compatibility?
Yes, the MAX4581LEEE+ operates from +2V to +12V and maintains logic compatibility at 3.3V: its input thresholds (VIL = 0.8V, VIH = 2.0V) are fixed relative to GND, not VCC, so standard 3.3V CMOS outputs (≥2.4V high, ≤0.4V low) fully satisfy VIH/VIL margins. No level-shifter is needed when driven by 3.3V microcontrollers or FPGAs.
MAX4581LEEE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 8:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 80Ohm
- Channel-to-Channel Matching (ΔRon):
- 1Ohm
- Voltage - Supply, Single (V+):
- 2V ~ 12V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 200ns, 100ns
- -3db Bandwidth:
- -
- Charge Injection:
- 0.5pC
- Channel Capacitance (CS(off), CD(off)):
- 4pF, 18pF
- Current - Leakage (IS(off)) (Max):
- 2nA
- Crosstalk:
- -96dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QSOP
MAX4581LEEE+ FAQ
1.How can I place an order for MAX4581LEEE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4581LEEE+ 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 MAX4581LEEE+ reliable?
The price and inventory of MAX4581LEEE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4581LEEE+ is usually 5 days.
3.What payment methods are accepted for MAX4581LEEE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4581LEEE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4581LEEE+?
MAX4581LEEE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4581LEEE+ 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 MAX4581LEEE+?
For technical support, including MAX4581LEEE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4581LEEE+ requirements.
6.How does Aetrix verify that MAX4581LEEE+ is sourced from the original manufacturer or authorized distributors?
All MAX4581LEEE+ 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 MAX4581LEEE+ meets industry standards.
7.What is the process for return or replacement of MAX4581LEEE+?
All MAX4581LEEE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4581LEEE+, 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 MAX4581LEEE+ part is unused and in its original packaging.
Return procedure for MAX4581LEEE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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