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Analog Devices Inc./Maxim Integrated MAX4581AUE+T
- Part No.:
- MAX4581AUE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4581AUE+T.pdf
- Description:
- IC MUX 8:1 80OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,678
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Product details
Overview
MAX4581AUE+T from Maxim Integrated is an 8-channel CMOS analog multiplexer configured for rail-to-rail signal switching in low-voltage systems. It operates from ±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 and audio routing circuits.
For engineers reviewing the MAX4581AUE+T datasheet, MAX4581AUE+T pinout, MAX4581AUE+T application, or MAX4581AUE+T equivalent, key selection criteria include guaranteed on-resistance matching (±10Ω), break-before-make timing (4–20ns), low charge injection (0.5–5pC), and AEC-Q100-qualified variants for automotive signal conditioning.
Technical Context
The MAX4581AUE+T implements a single 8:1 analog multiplexer with three address inputs (A/B/C) and an active-low ENABLE terminal, supporting binary decoding of eight input channels (X0–X7) to a common output (X). Its CMOS switch architecture uses matched P/N transistor pairs driven by level-shifted logic to maintain rail-to-rail analog swing across the full supply range.
Switching performance is characterized by address transition time ≤200ns (RL = 300Ω, CL = 35pF), enable turn-on/off times of 100/40ns under dual ±5V, and break-before-make interval of 4–20ns - ensuring minimal signal transient coupling during channel changes in precision measurement paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Configuration | 8-channel single-pole multiplexer (8:1) |
| Supply Range | ±2V to ±6V dual or +2V to +12V single - enables direct interface with Li-ion, 3.3V, and 5V systems |
| On-Resistance | 80Ω max at ±5V - ensures <0.1% gain error in 1kΩ sensor bridge interfaces |
| Off-Leakage Current | 1nA max at +25°C - preserves accuracy in high-impedance pH or thermocouple front-ends |
| Logic Thresholds | 0.8V low / 2.4V high at +5V - ensures robust noise margin with standard CMOS/TTL drivers |
| Bandwidth | 50MHz flat response in 50Ω - supports video sync and medium-speed ADC sampling |
| Charge Injection | 0.5–5pC - limits voltage glitch to <5mV on 1nF sampling capacitors |
| Off-Isolation | -74dB at 1MHz (50Ω) - suppresses crosstalk between adjacent sensor channels |
Pinout & Package
MAX4581AUE+T is housed in a 16-pin TSSOP package (4.4mm × 5mm, 0.65mm pitch) with exposed pad connected to VCC per Maxim's recommended layout. Pin functions are fully defined in the datasheet and validated for this variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 12, 13, 14 | X0–X7 Analog Inputs | Bidirectional signal terminals; interchangeable as input/output; support rail-to-rail voltage swing |
| 6 | VEE | Negative analog supply; tied to GND for single-supply operation |
| 7 | GND | Digital ground reference; no analog signal reference - all analog signals bounded by VCC/VEE |
| 8 | ENABLE | Active-low digital control; disables all switches when high (logic '1') |
| 9, 10, 11 | A, B, C | Binary address inputs selecting X0–X7; TTL/CMOS compatible at VCC = +5V |
| 15 | X | Common analog output; bidirectional; connects to selected Xn channel when enabled |
| 16 | VCC | Positive analog/digital supply; powers internal logic and switch driver circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports input/output voltages from VEE to VCC - eliminates level-shifting in ±5V op-amp sensor chains |
| Guaranteed on-resistance match | ΔRON ≤ 10Ω across all 8 channels - critical for multi-channel calibration without per-channel correction |
| Low distortion | <0.02% THD at 600Ω load - preserves fidelity in audio routing and instrumentation amplifier outputs |
| High off-isolation | -74dB at 1MHz - prevents signal bleed between unused channels in shared ADC front-ends |
| Automotive temperature grade | -40°C to +125°C operation - qualified for engine control, ADAS sensor multiplexing, and infotainment head units |
Applications
| Industrial Data Acquisition | Portable Medical Devices |
|---|---|
Use Scenario: Multiplexing 8 thermistor or RTD inputs into a single precision ADC in a handheld environmental monitor. IC Role / Device Role / Timing Role: 8:1 analog multiplexer providing channel selection under microcontroller GPIO control. Use Value: 1nA off-leakage prevents measurement drift in high-Z sensor bridges; 80Ω RON ensures <0.01% gain error at 10kΩ source impedance. | Use Scenario: Routing ECG electrode signals through a low-noise analog front-end before digitization in a wearable cardiac monitor. IC Role / Device Role / Timing Role: Low-distortion analog switch enabling sequential electrode connection without signal degradation. Use Value: <0.02% THD preserves waveform integrity; -74dB off-isolation prevents cross-talk between differential lead pairs. |
| Automotive Sensor Hub | Professional Audio Routing |
Use Scenario: Consolidating cabin temperature, humidity, and CO₂ sensor outputs onto a single CAN-connected MCU ADC in a vehicle climate module. IC Role / Device Role / Timing Role: AEC-Q100-qualified multiplexer operating across -40°C to +125°C ambient. Use Value: Guaranteed RON flatness and leakage specs over full automotive temperature range ensure consistent calibration across thermal cycles. | Use Scenario: Switching between 8 line-level audio sources (synths, mixers, DAW outputs) into a studio-grade analog summing amplifier. IC Role / Device Role / Timing Role: Bidirectional analog switch with symmetrical on-resistance and low charge injection. Use Value: 5pC max charge injection avoids audible pop/click during source switching; 50MHz bandwidth preserves high-frequency content. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4581EUE+ | Same pinout and function; rated for -40°C to +85°C (vs. -40°C to +125°C) | Suitable for industrial but not under-hood automotive use | Select MAX4581EUE+ where extended temperature qualification is unnecessary and cost sensitivity is higher |
| ADG1408BRUZ | 8:1 mux with 4.7Ω RON (lower), but requires ≥±4.5V dual or ≥9V single supply; no 2V min operation | Not viable for 2.7V/3.3V battery systems or low-voltage rail-to-rail designs | Choose ADG1408BRUZ only when ultra-low on-resistance is mandatory and supply rails permit ≥±4.5V |
Compared with MAX4581EUE+, the MAX4581AUE+T adds automotive-grade reliability and wider temperature margin; versus ADG1408BRUZ, it trades lower RON for broader supply flexibility and lower minimum voltage operation - making it optimal for portable and automotive edge-sensing nodes.
Availability
MAX4581AUE+T is available at Aetrix Electronics and suitable for industrial data acquisition, portable medical devices, and automotive sensor hub designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4581AUE+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 demanding industrial, automotive, and communications applications.
The MAX4581 family targets low-voltage, high-fidelity analog signal routing - specifically engineered for battery-operated equipment, sensor multiplexing, and audio/video switching where rail-to-rail operation and leakage-critical performance are essential.
FAQ
What is the maximum analog signal voltage range supported by the MAX4581AUE+T?
The MAX4581AUE+T supports rail-to-rail analog signals from VEE to VCC. With ±5V dual supplies, this is -5V to +5V; with +12V single supply (VEE = GND), it is 0V to +12V. Absolute maximum ratings limit VCC to 13V above VEE, and any analog signal must stay within (VEE – 0.3V) to (VCC + 0.3V) to avoid ESD diode conduction.
Does the MAX4581AUE+T require external pull-up or pull-down resistors on its address pins (A/B/C)?
No, the MAX4581AUE+T does not require external biasing on A, B, or C pins. Its logic inputs have guaranteed TTL/CMOS-compatible thresholds (0.8V low / 2.4V high at VCC = +5V), and internal input current is ±1µA max - allowing direct connection to microcontroller GPIOs without additional components.
Can the MAX4581AUE+T be used with a single 3.3V supply?
Yes, the MAX4581AUE+T operates from +2V to +12V single supply. At VCC = 3.3V and VEE = GND, typical on-resistance is 190Ω (max 450Ω), off-leakage remains ≤2nA at +25°C, and logic thresholds adjust to ~0.5V/1.0V - confirmed in the +3V electrical characteristics table of the datasheet.
How is the exposed pad on the MAX4581AUE+T TSSOP package connected?
The exposed pad on the MAX4581AUE+T is designated EP and must be soldered to VCC per Maxim's datasheet recommendation. This improves thermal dissipation and reduces ground bounce; it is not a ground connection. Layout guidelines specify connecting the pad directly to the VCC plane using multiple thermal vias.
Is the MAX4581AUE+T pin-compatible with legacy 74HC4051 devices?
Yes, the MAX4581AUE+T is pin-compatible with the industry-standard 74HC4051 and MAX4051, sharing identical pinout, logic diagram, and truth table. However, it offers superior specifications: lower on-resistance (80Ω vs. ~120Ω), lower leakage (1nA vs. ~100nA), and extended supply range (+2V to +12V vs. +2V to +6V).
MAX4581AUE+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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
MAX4581AUE+T FAQ
1.How can I place an order for MAX4581AUE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4581AUE+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 MAX4581AUE+T reliable?
The price and inventory of MAX4581AUE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4581AUE+T is usually 5 days.
3.What payment methods are accepted for MAX4581AUE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4581AUE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4581AUE+T?
MAX4581AUE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4581AUE+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 MAX4581AUE+T?
For technical support, including MAX4581AUE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4581AUE+T requirements.
6.How does Aetrix verify that MAX4581AUE+T is sourced from the original manufacturer or authorized distributors?
All MAX4581AUE+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 MAX4581AUE+T meets industry standards.
7.What is the process for return or replacement of MAX4581AUE+T?
All MAX4581AUE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4581AUE+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 MAX4581AUE+T part is unused and in its original packaging.
Return procedure for MAX4581AUE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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