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Analog Devices Inc./Maxim Integrated MAX4581ETE+T
- Part No.:
- MAX4581ETE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
MAX4581ETE+T.pdf
- Description:
- IC MUX 8:1 80OHM 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,736
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Product details
Overview
MAX4581ETE+T from Maxim Integrated is an 8-channel CMOS analog multiplexer configured for rail-to-rail signal switching in low-voltage systems. It operates on ±2V to ±6V dual supplies or +2V to +12V single supply, features 80Ω guaranteed on-resistance (±5V), 1nA off-leakage at +25°C, and TTL/CMOS-compatible logic inputs-enabling use in battery-powered data-acquisition front-ends.
For engineers reviewing the MAX4581ETE+T datasheet, MAX4581ETE+T pinout, MAX4581ETE+T application, or MAX4581ETE+T equivalent, key selection criteria include guaranteed on-resistance matching across channels, break-before-make timing (4–20 ns), low charge injection (0.5–5 pC), high off-isolation (–74 dB @ 50Ω), and TQFN-EP package compatibility with space-constrained PCB layouts.
Technical Context
The MAX4581ETE+T implements a single 8:1 analog multiplexer using BICMOS process technology, with address decoding via three digital inputs (A, B, C) and global enable control. Its internal switch architecture supports bidirectional signal flow and rail-to-rail analog voltage handling limited only by VCC and VEE.
Logic-level translation circuitry ensures TTL/CMOS compatibility across supply voltages: input thresholds scale with VCC (e.g., 0.8V/2.4V at +5V; ~3.1V high threshold at +12V). ESD protection diodes are integrated between each analog pin and both VCC and VEE, defining leakage behavior and overvoltage clamping limits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±2V to ±6V dual or +2V to +12V single - enables operation in 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 applications. |
| Off-Leakage Current | 1nA max at +25°C - preserves accuracy in high-impedance signal paths (e.g., thermocouple, pH probe front-ends). |
| Break-Before-Make Time | 4–20 ns - prevents momentary shorting during channel switching, critical for multi-sensor sampling integrity. |
| Off-Isolation | –74 dB at 50Ω, +25°C - suppresses crosstalk between inactive channels in dense analog routing. |
| Charge Injection | 0.5–5 pC - minimizes voltage glitch on sampled-hold capacitors, reducing acquisition settling time. |
| Logic Thresholds | 0.8V low / 2.4V high at +5V - ensures reliable interface with standard microcontroller GPIOs without external buffers. |
Pinout & Package
MAX4581ETE+T is housed in a 16-pin TQFN-EP (3mm × 3mm) package with exposed pad connected to VCC per datasheet recommendation. Pin 1 is X0; pin 2 is X1; pin 3 is X2; pin 4 is X3; pin 5 is X4; pin 6 is X5; pin 7 is X6; pin 8 is X7; pin 9 is A; pin 10 is B; pin 11 is C; pin 12 is ENABLE; pin 13 is VCC; pin 14 is VEE; pin 15 is GND; pin 16 is X (common output). Exposed pad (EP) must be soldered to VCC plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| X0–X7 | Analog input channels 0–7 | Bidirectional, interchangeable signal terminals - no dedicated input/output; all support rail-to-rail voltage swing. |
| X | Common analog output | Single-pole, 8-throw node - selected channel connects to X under A/B/C address control and ENABLE assertion. |
| A, B, C | Digital address inputs | 3-bit binary select (CBA = 000 to 111) - determines which Xn connects to X; logic thresholds scale with VCC. |
| ENABLE | Global enable/disable control | Active-high; when low, all switches open - used for power gating or system-wide mux disable. |
| VCC / VEE / GND | Power and reference rails | VCC and VEE set analog signal range limits; GND is digital ground reference only - analog signals float between VCC and VEE. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports full VEE-to-VCC voltage range without clipping - essential for ±5V op-amp interfaces and unipolar/bipolar sensor conditioning. |
| Guaranteed RON match between channels | ΔRON ≤ 100Ω (±5V) - ensures consistent gain and offset across multiplexed channels in calibrated measurement systems. |
| Low distortion & crosstalk | <0.02% THD (600Ω); <–96dB crosstalk (MAX4582, 50Ω) - maintains signal fidelity in audio and instrumentation-grade routing. |
| TTL/CMOS logic compatibility | 0.8V/2.4V thresholds at +5V; scales with VCC - eliminates need for level translators when interfacing with 3.3V/5V MCUs or FPGAs. |
| Automotive-qualified variants available | MAX4581ASE+/AUE+ rated –40°C to +125°C - confirms suitability for engine control, ADAS sensor hubs, and infotainment signal routing. |
Applications
| Battery-Powered Data Acquisition | Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing outputs from 8 temperature sensors into a single ADC channel in a handheld diagnostic tool. IC Role / Device Role / Timing Role: 8:1 analog multiplexer enabling sequential sampling with <20 ns break-before-make interval to prevent inter-channel coupling. Use Value: 1nA off-leakage preserves microvolt-level thermocouple signals; 80Ω RON minimizes gain error in ratiometric measurements. |
Use Scenario: Switching between microphone inputs and line-level sources in a portable mixer with selectable gain stages. IC Role / Device Role / Timing Role: Low-distortion analog switch routing audio paths with <0.02% THD and –74 dB off-isolation to suppress source bleed. Use Value: Rail-to-rail operation supports ±5V op-amp signal chains; TQFN-EP package enables compact, low-noise PCB layout. |
| Low-Voltage Industrial Control | Automotive Sensor Interface |
Use Scenario: Selecting among 8 pressure transducer outputs in a factory PLC I/O module powered from +3.3V logic rail. IC Role / Device Role / Timing Role: Single-supply 8:1 mux operating at +3.3V with guaranteed 190Ω RON and 100 ns tTRANS for deterministic scan timing. Use Value: 0.8V logic threshold ensures reliable address decoding from 3.3V MCU GPIOs; low ICC (<1 µA) extends system standby life. |
Use Scenario: Routing CAN transceiver diagnostic lines, LIN bus signals, and analog sensor feeds in a body control module. IC Role / Device Role / Timing Role: High-reliability analog switch supporting –40°C to +125°C operation with AEC-Q100-compliant variants (MAX4582). Use Value: ESD protection (>2000V HBM) and robust off-isolation (–74 dB) ensure noise immunity in electrically noisy vehicle environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4051ACSE+ | Pin-compatible 8:1 mux but rated only 0°C to +70°C; RON = 100Ω (±5V); higher 5nA off-leakage at +85°C. | Suitable for commercial-grade instrumentation where extended temperature range is not required. | Select MAX4051ACSE+ only if ambient operating temperature stays below +70°C and leakage budget allows 5× increase at elevated temps. |
| ADG1408BRUZ | 8:1 mux with 4.7Ω RON (±15V), but requires ±15V supplies; no single-supply operation; larger 20-lead TSSOP package. | Targeted at high-precision lab equipment needing ultra-low on-resistance, not portable or low-voltage systems. | Choose ADG1408BRUZ only when sub-5Ω RON is mandatory and ±15V rails are available - not a drop-in replacement for MAX4581ETE+T. |
Compared with MAX4051ACSE+, MAX4581ETE+T offers wider temperature range and lower leakage; versus ADG1408BRUZ, it trades on-resistance for single/dual supply flexibility and compact TQFN packaging - making it optimal for space- and power-constrained embedded systems.
Availability
MAX4581ETE+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 industrial and automotive temperature ranges.
Supply support for MAX4581ETE+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 MAX4581ETE+T belongs to Maxim's low-voltage analog switch/multiplexer family, engineered for rail-to-rail signal integrity, low power consumption, and robust operation in portable and harsh-environment systems.
FAQ
What supply configurations does the MAX4581ETE+T support?
The MAX4581ETE+T supports dual supplies from ±2V to ±6V and single supplies from +2V to +12V (with VEE tied to GND). At ±5V, it delivers 80Ω typical on-resistance and 1nA off-leakage at +25°C. Operation below +2V is possible but degrades RON and switching speed - the MAX4581ETE+T is specified and tested across its full rated range.
How is the exposed pad on the MAX4581ETE+T package used?
The exposed pad (EP) on the MAX4581ETE+T TQFN package must be soldered to the VCC plane per Maxim's datasheet guidance. This connection improves thermal dissipation and reduces ground bounce during switching transitions. The EP is electrically connected to VCC internally - floating or grounding it violates the device's thermal and electrical specifications and may cause malfunction.
Does the MAX4581ETE+T support bidirectional signal flow?
Yes, the MAX4581ETE+T supports fully bidirectional analog signal flow: any Xn pin or the X pin may serve as input or output. This is inherent to its CMOS transmission-gate architecture - signals pass equally well in either direction, with identical RON, leakage, and bandwidth characteristics regardless of directionality.
What is the maximum analog signal voltage range for the MAX4581ETE+T?
The MAX4581ETE+T supports analog signals from VEE to VCC. With ±5V supplies, the range is –5V to +5V; with +5V single supply (VEE = GND), it is 0V to +5V. Signals exceeding these limits forward-bias internal ESD diodes - the absolute maximum rating is (VEE – 0.3V) to (VCC + 0.3V), beyond which permanent damage may occur.
Is the MAX4581ETE+T pin-compatible with industry-standard mux ICs?
Yes, the MAX4581ETE+T is pin-compatible with the CD4051, 74HC4051, and MAX4051 families in PDIP, SO, TSSOP, and QSOP packages. While the TQFN-EP footprint differs, the signal and power pin assignments (X0–X7, X, A/B/C, ENABLE, VCC, VEE, GND) match exactly - enabling direct substitution in existing layouts when using compatible land patterns.
MAX4581ETE+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-TQFN (3x3)
MAX4581ETE+T FAQ
1.How can I place an order for MAX4581ETE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4581ETE+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 MAX4581ETE+T reliable?
The price and inventory of MAX4581ETE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4581ETE+T is usually 5 days.
3.What payment methods are accepted for MAX4581ETE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4581ETE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4581ETE+T?
MAX4581ETE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4581ETE+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 MAX4581ETE+T?
For technical support, including MAX4581ETE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4581ETE+T requirements.
6.How does Aetrix verify that MAX4581ETE+T is sourced from the original manufacturer or authorized distributors?
All MAX4581ETE+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 MAX4581ETE+T meets industry standards.
7.What is the process for return or replacement of MAX4581ETE+T?
All MAX4581ETE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4581ETE+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 MAX4581ETE+T part is unused and in its original packaging.
Return procedure for MAX4581ETE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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