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Analog Devices Inc./Maxim Integrated MAX4581EUE+
- Part No.:
- MAX4581EUE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4581EUE+.pdf
- Description:
- IC MUX 8:1 80OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,191
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Product details
Overview
MAX4581EUE+ 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-used in battery-powered data-acquisition front-ends and audio routing.
For engineers reviewing the MAX4581EUE+ datasheet, MAX4581EUE+ pinout, MAX4581EUE+ application, or MAX4581EUE+ equivalent, key selection criteria include guaranteed on-resistance matching across channels, break-before-make timing (4–20ns), low charge injection (0.5–5pC), high off-isolation (−74dB @ 50Ω), and TSSOP-16 packaging for space-constrained mixed-signal PCBs.
Technical Context
The MAX4581EUE+ implements a single 8:1 analog multiplexer using CMOS transmission-gate architecture with independent digital address decoding (A/B/C inputs) and global enable control. Its internal logic translates TTL/CMOS-level inputs into full-rail analog switch gate drives referenced to VCC and VEE, enabling bidirectional signal flow without ground reference.
It features ESD-protection diodes between each analog pin and both VCC/VEE, defining absolute analog input limits as (VEE − 0.3V) to (VCC + 0.3V). Leakage current arises solely from reverse-biased diode mismatch-not channel conduction-ensuring predictable off-state behavior across temperature and signal voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±2V to ±6V dual or +2V to +12V single-supports portable, automotive, and industrial rails without level-shifting. |
| On-Resistance (RON) | 80Ω max at ±5V-ensures minimal signal attenuation and gain error in precision sensor/mux chains. |
| Off-Leakage Current | 1nA max at +25°C-critical for high-impedance sensor interfaces and low-power standby modes. |
| Off-Isolation | −74dB @ 50Ω, 1MHz-prevents crosstalk between unused channels in RF-adjacent or multi-channel audio paths. |
| Charge Injection | 0.5–5pC-limits voltage glitch on sampled-hold nodes and ADC input capacitors. |
| Break-Before-Make Time | 4–20ns-avoids momentary shorting during channel switching in power-sensitive analog signal paths. |
| Logic Thresholds | 0.8V to 2.4V-guarantees reliable operation with 3.3V or 5V microcontrollers without external translators. |
Pinout & Package
MAX4581EUE+ uses a 16-pin TSSOP package (4.4mm × 5mm, 0.65mm pitch) with exposed pad connected to VCC per Maxim's recommended layout. Pin 1 is X0 (analog input 0), pin 16 is VCC, pin 8 is GND, pin 7 is VEE, and pins 11–13 are address inputs A/B/C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 14, 15 | Analog Inputs X0–X7 | Bidirectional signal terminals; interchangeable as inputs or outputs; support rail-to-rail analog swing. |
| 13 | Analog Output X | Common output node for selected channel; no internal ground reference-voltage defined only relative to VCC/VEE. |
| 11, 12, 13 | Digital Address A/B/C | Binary-select inputs (CBA = 000 to 111) choosing one of eight analog paths; TTL/CMOS compatible. |
| 10 | ENABLE | Active-high global enable; when low, all switches open-enables power gating and system-level channel disable. |
| 16 | VCC | Positive supply for analog switches and digital logic; also connects to exposed pad in TQFN variants (not applicable to TSSOP). |
| 7 | VEE | Negative analog supply; tied to GND for single-supply operation-defines lower analog signal limit. |
| 8 | GND | Digital ground reference only; analog signals float between VCC and VEE-no DC path to GND. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports input/output voltages from VEE to VCC-eliminates need for external biasing in ±5V or single +5V systems. |
| Guaranteed RON matching | ΔRON ≤ 10Ω across channels at ±5V-ensures consistent gain and offset in multi-channel calibration routines. |
| Low distortion | < 0.02% THD @ 600Ω-preserves fidelity in audio and instrumentation signal paths up to 20kHz. |
| High-frequency off-isolation | −74dB @ 1MHz, 50Ω-maintains channel separation in broadband communication and video routing applications. |
| AEC-Q100 alignment | Available in −40°C to +125°C automotive-grade variants (e.g., MAX4581ASE+)-validates reliability for under-hood use. |
Applications
| Portable Data Acquisition | Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing thermocouple, RTD, and strain gauge outputs into a single SAR ADC in handheld test equipment. IC Role / Device Role / Timing Role: 8:1 analog multiplexer selecting sensor inputs under microcontroller address control; ENABLE synchronized with ADC conversion start. Use Value: 80Ω RON and ≤1nA leakage preserve measurement accuracy across 16-bit dynamic range without calibration drift. | Use Scenario: Switching line-level stereo signals between multiple sources (DAC, Bluetooth module, aux input) in smart speaker firmware-controlled routing. IC Role / Device Role / Timing Role: Bidirectional analog switch enabling source selection; low THD and flat RON ensure transparent audio pass-through. Use Value: <0.02% THD and −74dB off-isolation prevent audible crosstalk and distortion in consumer-grade audio paths. |
| Automotive Sensor Hub | Industrial PLC I/O Module |
Use Scenario: Consolidating cabin temperature, humidity, and CO₂ sensor analog outputs into a CAN-connected MCU in automotive HVAC control units. IC Role / Device Role / Timing Role: Low-leakage multiplexer operating over −40°C to +85°C ambient; ENABLE used for fault isolation during diagnostics. Use Value: 1nA off-leakage at +85°C prevents sensor offset errors; ±2V to ±6V supply range matches vehicle battery transients. | Use Scenario: Routing 4–20mA transmitter outputs or 0–10V analog inputs to shared ADC channels in modular industrial controllers. IC Role / Device Role / Timing Role: High-voltage-tolerant analog switch supporting rail-to-rail inputs; break-before-make prevents short-circuits during hot-swap reconfiguration. Use Value: 4–20ns tBBM avoids transient shorts; VCC/VEE clamping diodes protect against field-wiring transients. |
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, SPI interface instead of parallel address lines | Requires microcontroller SPI driver; better for high-precision, low-RON needs but incompatible pinout and logic interface | Select ADG1408BRUZ only when ultra-low on-resistance and higher supply voltage tolerance outweigh parallel-address simplicity. |
| TS5A23157DGSR | 2-channel SPDT, 0.9Ω RON, +1.65V to +5.5V supply, no VEE pin, smaller 10-pin VSSOP package | Limited to dual-channel routing; lacks 8:1 functionality and bipolar supply capability-unsuitable for rail-to-rail AC coupling | Choose TS5A23157DGSR for compact, low-voltage, single-supply dual-switch applications-not as a drop-in replacement for MAX4581EUE+. |
Compared with ADG1408BRUZ and TS5A23157DGSR, the MAX4581EUE+ uniquely balances 8-channel count, bipolar supply flexibility, parallel address decoding, and leakage performance-making it optimal for cost-sensitive, space-constrained, multi-sensor data loggers requiring simple MCU interfacing.
Availability
MAX4581EUE+ is available at Aetrix Electronics and suitable for portable instrumentation, automotive sensor hubs, industrial PLC I/O modules, and audio routing systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4581EUE+ 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 series belongs to Maxim's low-voltage analog switch/multiplexer product line, engineered for rail-to-rail signal integrity, ultra-low leakage, and robust operation in battery-powered and harsh-environment systems.
FAQ
What is the maximum analog signal voltage range supported by the MAX4581EUE+?
The MAX4581EUE+ supports analog signals from VEE to VCC. With ±5V supplies, this is −5V to +5V; with +5V single supply (VEE = GND), it is 0V to +5V. Absolute maximum ratings allow (VEE − 0.3V) to (VCC + 0.3V), but sustained operation beyond VEE/VCC risks ESD diode conduction. The MAX4581EUE+ datasheet specifies rail-to-rail capability within these bounds.
Does the MAX4581EUE+ require external pull-up or pull-down resistors on its address pins?
No, the MAX4581EUE+ does not require external pull-up or pull-down resistors on A, B, or C address pins. Its digital inputs have guaranteed TTL/CMOS-compatible thresholds (0.8V low, 2.4V high at +5V supply), and input leakage is ±1µA-low enough to be driven directly by standard microcontroller GPIOs without biasing. The MAX4581EUE+ internal structure ensures clean logic recognition without external components.
Can the MAX4581EUE+ operate reliably at +85°C ambient temperature?
Yes, the MAX4581EUE+ is rated for −40°C to +85°C operation (industrial temperature grade). Electrical characteristics-including 1nA off-leakage, 80Ω on-resistance, and −74dB off-isolation-are guaranteed across this full range. The MAX4581EUE+ uses BICMOS process technology optimized for thermal stability, and its TSSOP package provides adequate thermal dissipation for typical 1–2mW power consumption at +85°C.
How does the ENABLE pin function in the MAX4581EUE+?
The ENABLE pin on the MAX4581EUE+ is an active-high digital control that globally enables or disables all eight analog switches. When ENABLE is low, all channels are open (high-impedance off-state), regardless of address inputs. When ENABLE is high, channel selection proceeds normally via A/B/C. This allows system-level power gating and fault isolation-critical in safety-critical or low-power sleep modes. The MAX4581EUE+ ENABLE threshold matches standard TTL/CMOS logic levels.
Is the MAX4581EUE+ pin-compatible with legacy 74HC4051 devices?
Yes, the MAX4581EUE+ is pin-compatible with the industry-standard 74HC4051 in TSSOP-16 packaging. Both share identical pinouts for X0–X7, X (common), A/B/C, ENABLE, VCC, VEE, and GND. However, the MAX4581EUE+ offers superior specs: lower on-resistance (80Ω vs. ~120Ω), lower leakage (1nA vs. ~100nA), and wider supply range (±2V to ±6V vs. ±5V only). The MAX4581EUE+ serves as a direct performance upgrade with no PCB changes required.
MAX4581EUE+ 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±):
- ±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+ FAQ
1.How can I place an order for MAX4581EUE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4581EUE+ 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+ reliable?
The price and inventory of MAX4581EUE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4581EUE+ is usually 5 days.
3.What payment methods are accepted for MAX4581EUE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4581EUE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4581EUE+?
MAX4581EUE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4581EUE+ 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+?
For technical support, including MAX4581EUE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4581EUE+ requirements.
6.How does Aetrix verify that MAX4581EUE+ is sourced from the original manufacturer or authorized distributors?
All MAX4581EUE+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX4581EUE+?
All MAX4581EUE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4581EUE+, 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+ part is unused and in its original packaging.
Return procedure for MAX4581EUE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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