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Analog Devices Inc./Maxim Integrated MAX4581EUE+T
- Part No.:
- MAX4581EUE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4581EUE+T.pdf
- Description:
- IC MUX 8:1 80OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:7,058
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Product details
Overview
MAX4581EUE+T from Maxim Integrated is an 8-channel CMOS analog multiplexer configured for rail-to-rail signal switching in low-voltage systems. It operates with ±2V to ±6V dual supplies or +2V to +12V single supply, delivers 80Ω on-resistance at ±5V, guarantees ≤1nA off-leakage at +25°C, and supports TTL/CMOS logic compatibility-enabling use in battery-powered data-acquisition front-ends.
For engineers reviewing the MAX4581EUE+T datasheet, MAX4581EUE+T pinout, MAX4581EUE+T application, or MAX4581EUE+T equivalent, key selection criteria include guaranteed on-resistance matching (≤10Ω), break-before-make timing (4–20ns), low crosstalk (<−96dB at 1MHz), high off-isolation (<−74dB), and TSSOP-16 packaging suitable for space-constrained mixed-signal routing.
Technical Context
The MAX4581EUE+T implements a single 8:1 analog multiplexer architecture with three digital address inputs (A, B, C) and an active-low ENABLE terminal. Its internal CMOS switch array uses matched P- and N-channel transistors to achieve rail-to-rail analog conduction and low distortion (<0.02% THD at 600Ω).
Logic-level translation circuitry ensures TTL/CMOS compatibility across supply voltages: input thresholds scale with VCC (e.g., 0.8V–2.4V at +5V, ~1.0V–3.1V at +12V), while ESD protection diodes clamp analog pins to VCC and VEE-requiring proper power sequencing (VCC before VEE) to avoid leakage-induced errors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±2V to ±6V dual or +2V to +12V single-supports direct interface with Li-ion, 3.3V, and 5V systems without level shifters. |
| On-Resistance (RON) | 80Ω max at ±5V-ensures minimal signal attenuation and gain error in precision sensor multiplexing. |
| Off-Leakage Current | 1nA max at +25°C-critical for maintaining accuracy in high-impedance pH or thermocouple measurement paths. |
| Channel Matching (∆RON) | ≤10Ω-enables ratiometric measurements and calibration stability across all 8 channels. |
| Break-Before-Make Time | 4–20ns-prevents momentary shorting during channel transitions in audio or video signal routing. |
| Crosstalk | <−96dB at 1MHz (50Ω)-suppresses interference between adjacent channels in multi-sensor DAQ systems. |
| Off-Isolation | <−74dB at 1MHz (50Ω)-blocks unwanted coupling from inactive channels into sensitive analog receivers. |
Pinout & Package
MAX4581EUE+T is housed in a 16-pin TSSOP package (4.4mm × 5.0mm, 0.65mm pitch) with exposed pad connected to VCC per datasheet recommendation. Pin 1 is X0; pin 16 is VCC; pin 8 is GND; pin 7 is VEE; pin 15 is ENABLE; pins 10–13 and 1–2 are X1–X7; pin 3 is X; pins 11–12 are A/B; pin 9 is C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| X0–X7 | Analog input channels 0–7 | Bidirectional, rail-to-rail capable-any may serve as source or sink depending on address state. |
| X | Common analog output | Single-pole, 8-throw output node-connects to ADC input, amplifier feedback, or signal processor. |
| A, B, C | Digital address inputs | Binary-encoded selection (CBA = 000 → X0, 111 → X7); 0.8V/2.4V thresholds ensure robust noise margin. |
| ENABLE | Active-low enable control | Pulls all switches open when high-used for power gating or system-level channel disable. |
| VCC / VEE | Positive/negative supply rails | Set analog signal range limits; VEE = GND enables single-supply operation down to +2V. |
| GND | Digital ground reference | Logic supply return only-no analog signal reference; analog paths float between VCC and VEE. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog switching | Signals swing from VEE to VCC without clipping-enables full utilization of ADC input range in ±5V or +12V systems. |
| Guaranteed on-resistance match | ≤10Ω difference between any two channels-eliminates channel-dependent gain drift in calibrated multi-channel sensors. |
| Low charge injection (0.5–5pC) | Minimizes voltage glitch at output during switching-critical for sample-and-hold circuits and precision integrators. |
| TTL/CMOS-compatible logic | Thresholds auto-scale with VCC-allows direct connection to FPGA I/O banks or microcontroller GPIO without external translators. |
| −40°C to +85°C operating range | Qualified for industrial temperature environments-supports deployment in automotive cabin modules and outdoor instrumentation. |
Applications
| Battery-Powered Data Acquisition | Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing 8 thermistor or RTD inputs into a single 16-bit SAR ADC in a portable environmental monitor. IC Role / Device Role / Timing Role: Analog multiplexer providing channel selection under microcontroller SPI/I²C-controlled GPIO addressing. Use Value: 1nA off-leakage prevents bias current errors in high-Z sensor bridges; 80Ω RON contributes <0.1% gain error at 10kΩ source impedance. | Use Scenario: Switching between 8 microphone preamp outputs to a single audio codec in a conferencing soundbar. IC Role / Device Role / Timing Role: Low-distortion analog switch enabling mute/unmute and input selection without audible click/pop. Use Value: <0.02% THD preserves fidelity; <−96dB crosstalk prevents bleed between talkers; break-before-make avoids shorting preamp outputs. |
| Automotive Cabin Control Panel | Low-Voltage Industrial Sensor Hub |
Use Scenario: Routing analog signals from HVAC sensors (temperature, humidity, CO₂) to a central MCU in a vehicle dashboard. IC Role / Device Role / Timing Role: Temperature-qualified multiplexer handling ±2V to +5.5V supplies across varying battery conditions. Use Value: −40°C to +85°C rating ensures reliability; ±5V dual-supply support accommodates legacy sensor outputs without level shifting. | Use Scenario: Consolidating analog outputs from 8 pressure transducers in a factory-floor PLC I/O module. IC Role / Device Role / Timing Role: High-isolation switch isolating faulted channels while maintaining signal integrity on healthy paths. Use Value: <−74dB off-isolation blocks fault propagation; 16-pin TSSOP footprint saves PCB area versus discrete solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1408BRUZ | 8-channel, ±15V max supply, 4.7Ω RON at ±15V, but 120Ω at ±5V; requires separate logic supply (VL). | Higher precision in high-voltage systems; less suitable for low-voltage battery operation due to higher RON at 5V. | Select ADG1408BRUZ when driving high-impedance loads at ±15V; prefer MAX4581EUE+T for 3.3V/5V embedded DAQ. |
| TMUX1308PWR | 8-channel, +1.8V to +5.5V single supply only; 5.5Ω RON at +5V; no dual-supply capability; 1.8V logic compatible. | Optimized for ultra-low-voltage MCU interfaces; lacks bipolar supply support required for legacy industrial sensors. | Choose TMUX1308PWR for modern 1.8V/3.3V IoT nodes; retain MAX4581EUE+T where ±5V sensor interfacing or rail-to-rail swing is mandatory. |
Compared with ADG1408BRUZ and TMUX1308PWR, the MAX4581EUE+T uniquely balances low-voltage operation (+2V min), dual-supply flexibility (±2V to ±6V), and guaranteed 80Ω RON at ±5V-making it optimal for industrial and automotive DAQ where supply headroom and signal swing constraints coexist.
Availability
MAX4581EUE+T is available at Aetrix Electronics and suitable for battery-operated equipment, audio/video signal routing, and low-voltage data-acquisition systems requiring stable component supply across extended temperature ranges.
Supply support for MAX4581EUE+T 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, automotive, and communications applications.
The MAX4581EUE+T belongs to Maxim's low-voltage analog switch/multiplexer product line, engineered specifically for rail-to-rail signal routing in space- and power-constrained systems where leakage, distortion, and supply flexibility are critical.
FAQ
What supply configurations does the MAX4581EUE+T support?
The MAX4581EUE+T supports both dual-supply (±2V to ±6V) and single-supply (+2V to +12V) operation. When using single supply, VEE must be tied to GND. The device maintains rail-to-rail analog conduction and guaranteed 80Ω on-resistance at ±5V, making it adaptable to diverse power architectures including battery-backed and industrial 5V/12V rails.
How does the MAX4581EUE+T handle logic-level compatibility across different supply voltages?
The MAX4581EUE+T features auto-scaling TTL/CMOS logic thresholds: at +5V VCC, inputs recognize 0.8V (low) and 2.4V (high); at +12V VCC, thresholds rise to ~1.0V and ~3.1V respectively. This eliminates need for external level shifters when interfacing with FPGAs or MCUs operating at varying I/O voltages, and ensures noise immunity remains consistent across its full supply range.
What is the maximum allowable analog signal range for the MAX4581EUE+T?
The MAX4581EUE+T passes analog signals from VEE to VCC without clipping. With ±5V supplies, the full range is −5V to +5V; with +5V single supply (VEE = GND), the range is 0V to +5V. Exceeding these limits forward-biases internal ESD diodes-potentially increasing leakage or damaging the device-so signal clamping or external protection is required for overvoltage scenarios.
Can the MAX4581EUE+T be used in high-frequency signal paths?
The MAX4581EUE+T maintains flat frequency response up to ~50MHz in 50Ω systems, but off-isolation degrades above 10MHz (−50dB at 10MHz, falling ~20dB/decade). For RF or high-speed digital applications, it is not recommended. However, for audio (20Hz–20kHz), video baseband, or sensor signals below 1MHz, its <0.02% THD and <−96dB crosstalk ensure clean, isolated routing.
Is the MAX4581EUE+T pin-compatible with industry-standard analog multiplexers?
Yes-the MAX4581EUE+T is pin-compatible with the CD4051, 74HC4051, and MAX4051 families. Its pinout follows the original RCA CD4051 nomenclature (X0–X7, X, A/B/C, ENABLE, VCC, VEE, GND), allowing drop-in replacement in existing designs without PCB modification, provided supply and temperature requirements align.
MAX4581EUE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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±):
- ±2V ~ 6V
- 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):
- 1nA
- Crosstalk:
- -78dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
MAX4581EUE+T FAQ
1.How can I place an order for MAX4581EUE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4581EUE+T 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 MAX4581EUE+T reliable?
The price and inventory of MAX4581EUE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4581EUE+T is usually 5 days.
3.What payment methods are accepted for MAX4581EUE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4581EUE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4581EUE+T?
MAX4581EUE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4581EUE+T 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 MAX4581EUE+T?
For technical support, including MAX4581EUE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4581EUE+T requirements.
6.How does Aetrix verify that MAX4581EUE+T is sourced from the original manufacturer or authorized distributors?
All MAX4581EUE+T 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 MAX4581EUE+T meets industry standards.
7.What is the process for return or replacement of MAX4581EUE+T?
All MAX4581EUE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4581EUE+T, 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 MAX4581EUE+T part is unused and in its original packaging.
Return procedure for MAX4581EUE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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