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Analog Devices Inc./Maxim Integrated MAX4581EEE+T
- Part No.:
- MAX4581EEE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
MAX4581EEE+T.pdf
- Description:
- IC MUX 8:1 80OHM 16QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,200
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Product details
Overview
MAX4581EEE+T from Maxim Integrated is an 8-channel CMOS analog multiplexer configured for rail-to-rail signal routing 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 audio/video switching and low-voltage data-acquisition front-ends.
For engineers reviewing the MAX4581EEE+T datasheet, MAX4581EEE+T pinout, MAX4581EEE+T application, or MAX4581EEE+T 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 at 1MHz), and QSOP-16 packaging with –40°C to +85°C industrial temperature rating.
Technical Context
The MAX4581EEE+T implements a single 8:1 analog multiplexer using CMOS transmission-gate architecture with independent digital address decoding (A/B/C) and global enable control. Its internal logic translates TTL/CMOS-compatible inputs (0.8V–2.4V thresholds) into full-rail gate drive signals for analog switches, ensuring rail-to-rail conduction without level-shifting circuitry.
It features matched on-resistance flatness (<100Ω variation over ±4.5V signal range), low crosstalk (–96dB for adjacent channels in MAX4582 configuration), and ESD protection diodes tied to VCC/VEE - requiring proper power sequencing (VCC first, then VEE, then signals) to avoid latch-up or leakage excursions.
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 interfacing with Li-ion, 3.3V, and 5V systems |
| On-Resistance | 80Ω max at ±5V - ensures minimal signal attenuation and gain error in precision sensor/metering paths |
| Off-Leakage Current | 1nA max at +25°C - preserves accuracy in high-impedance measurement nodes (e.g., thermocouple, pH electrode) |
| Logic Thresholds | 0.8V low / 2.4V high - fully compatible with 5V TTL and CMOS without external level shifters |
| Break-Before-Make Time | 4–20ns - prevents momentary shorting between input channels during address transitions |
| Off-Isolation | –74dB at 1MHz (50Ω) - suppresses crosstalk in multi-signal routing applications like video matrix switching |
Pinout & Package
MAX4581EEE+T is housed in a 16-pin QSOP package (3.9mm × 4.9mm, 0.635mm pitch) with exposed pad not present - suitable for space-constrained industrial PCBs and compatible with standard reflow profiles.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | X0–X7 Analog Inputs | Eight bidirectional analog signal terminals; interchangeable as inputs or outputs; support rail-to-rail voltage swing |
| 9 | C Address Input | MSB of 3-bit binary channel select (CBA = 000–111 selects X0–X7) |
| 10 | B Address Input | Middle bit of channel select; must be stable before enable assertion to avoid glitch-induced channel misrouting |
| 11 | A Address Input | LSB of channel select; controls final channel selection with C and B |
| 12 | ENABLE | Active-high global enable; forces all switches open when low - used for power gating or system-level muting |
| 13 | X | Common analog output terminal - connects selected X0–X7 channel when ENABLE = high and address valid |
| 14 | GND | Digital ground reference only; analog signals are referenced solely between VCC and VEE - no ground path required |
| 15 | VEE | Negative supply pin; tie to GND for single-supply operation; sets lower bound of analog signal range |
| 16 | VCC | Positive supply pin; powers internal logic and switch driver stages; defines upper analog signal limit |
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 AC-coupled or bipolar sensor interfaces |
| Guaranteed on-resistance match | ΔRON ≤ 100Ω across all channels at ±5V - critical for multiplexed instrumentation where channel-to-channel gain consistency is required |
| Low charge injection | 0.5–5pC - minimizes voltage kick at output during switching, reducing settling time in high-impedance sampling circuits |
| TTL/CMOS logic compatibility | 0.8V–2.4V input thresholds at +5V supply - allows direct connection to microcontroller GPIO without interface buffers |
| Industrial temperature range | –40°C to +85°C operation - validated for deployment in automotive cabin modules, industrial PLC I/O, and outdoor metering equipment |
Applications
| Battery-Powered Data Loggers | Audio Signal Routing |
|---|---|
|
Use Scenario: Multiplexing multiple thermistor, RTD, or strain gauge sensors into a single ADC channel in portable environmental monitors. IC Role / Device Role: 8:1 analog multiplexer providing low-leakage, low-on-resistance signal path selection under battery-limited power budgets. Use Value: 1nA off-leakage preserves measurement integrity at high source impedances (>100kΩ); 80Ω RON limits gain error to <0.1% in 12-bit systems. |
Use Scenario: Switching between microphone inputs, line-level sources, or headphone outputs in compact audio mixers or VoIP handsets. IC Role / Device Role: Bidirectional analog switch enabling flexible signal path reconfiguration without DC blocking capacitors. Use Value: Rail-to-rail operation supports full ±2.5V audio swing; –74dB off-isolation prevents audible crosstalk between active and muted channels. |
| Automotive Cabin Control Panels | Low-Voltage Industrial I/O Modules |
|
Use Scenario: Routing analog sensor signals (e.g., seat occupancy, ambient light, HVAC thermistors) to MCU ADC in vehicle infotainment head units. IC Role / Device Role: AEC-Q100-compliant analog multiplexer operating across –40°C to +85°C with robust ESD tolerance (>2000V). Use Value: Guaranteed performance over full automotive temperature range; 4–20ns break-before-make prevents transient shorts during mode changes. |
Use Scenario: Consolidating multiple 4–20mA current-loop sensor inputs or 0–10V analog outputs onto shared controller resources in factory automation controllers. IC Role / Device Role: High-fidelity analog switch supporting both sourcing and sinking configurations with minimal signal degradation. Use Value: 0.02% THD at 600Ω load maintains fidelity in process control feedback loops; single +5V or ±5V supply simplifies power design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4051ACPE+ | Same 8:1 architecture but rated for 0°C to +70°C only; higher typical on-resistance (100Ω vs. 80Ω at ±5V) | Limited to commercial-temperature applications; less suitable for extended-temperature industrial deployments | Select MAX4051ACPE+ only if cost sensitivity outweighs temperature range and RON requirements |
| ADG1408BRUZ | Higher supply voltage limit (+36V dual); lower on-resistance (4.7Ω typical); requires separate VDD/VSS pins and different logic interface | Targeted at high-voltage test equipment and precision lab instruments - not drop-in compatible due to pinout and supply architecture | Choose ADG1408BRUZ when ultra-low RON or extended voltage range is mandatory; expect PCB redesign |
Compared with MAX4581EEE+T, MAX4051ACPE+ trades industrial temperature capability for lower cost, while ADG1408BRUZ delivers superior RON and voltage range at the expense of pin compatibility and increased system complexity - making MAX4581EEE+T optimal for balanced performance in space- and power-constrained industrial designs.
Availability
MAX4581EEE+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 and long production lifecycles.
Supply support for MAX4581EEE+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 series belongs to Maxim's low-voltage analog switch portfolio, engineered specifically for rail-to-rail signal integrity, low leakage, and seamless integration into battery-powered and thermally rugged systems.
FAQ
What is the maximum analog signal voltage range supported by the MAX4581EEE+T?
The MAX4581EEE+T supports rail-to-rail analog signals from VEE to VCC. With ±5V dual supplies, this spans –5V to +5V; with +5V single supply (VEE = GND), it covers 0V to +5V. Absolute maximum ratings allow VCC up to +13V and VEE down to –0.3V relative to GND, but sustained operation beyond ±6V or +12V violates specifications and risks damage. The MAX4581EEE+T must never see analog signals exceeding its supply rails without external clamping.
Does the MAX4581EEE+T require external pull-up or pull-down resistors on its address or enable pins?
No, the MAX4581EEE+T does not require external pull-up or pull-down resistors on A, B, C, or ENABLE pins. Its digital inputs have guaranteed TTL/CMOS-compatible thresholds (0.8V low, 2.4V high at +5V supply) and internal input-current limits (±1µA typical). However, floating inputs must be avoided - unused address lines should be tied to VCC or GND to prevent metastability, and ENABLE should be actively driven high or low to ensure deterministic switch state.
Can the MAX4581EEE+T be used with a +3.3V single supply?
Yes, the MAX4581EEE+T is fully specified for +3.3V single-supply operation (VCC = 3.3V, VEE = GND). At this voltage, on-resistance rises to 190Ω (typical) and switching times increase (e.g., tTRANS ≈ 130–300ns), but all logic thresholds, leakage specs, and rail-to-rail functionality remain valid. The device draws only ±1µA supply current, making it ideal for low-power 3.3V systems such as portable medical sensors or IoT edge nodes where the MAX4581EEE+T maintains signal fidelity without level translation.
How does the MAX4581EEE+T handle analog signals that exceed its supply rails?
The MAX4581EEE+T contains internal ESD-protection diodes from each analog pin to VCC and VEE. If an analog signal exceeds VCC or falls below VEE, the corresponding diode conducts, potentially causing excessive current flow and damage unless externally limited. To safely handle overvoltage signals, external series current-limiting resistors (e.g., 1kΩ) or discrete clamping diodes (with current limiting) must be added - the MAX4581EEE+T itself provides no overvoltage protection beyond its absolute maximum ratings.
Is the MAX4581EEE+T pin-compatible with the industry-standard CD4051B?
Yes, the MAX4581EEE+T is pin-compatible with the CD4051B and 74HC4051 in QSOP-16 packaging, sharing identical pin assignments for X0–X7, A/B/C, ENABLE, X, VCC, VEE, and GND. Functionally, it replicates the same 8:1 multiplexer behavior with improved specs: lower on-resistance (80Ω vs. ~120Ω), lower leakage (1nA vs. ~100nA), and wider supply range (±2V to ±6V vs. ±5V only). No PCB changes are needed when upgrading from CD4051B to MAX4581EEE+T.
MAX4581EEE+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-QSOP
MAX4581EEE+T FAQ
1.How can I place an order for MAX4581EEE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4581EEE+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 MAX4581EEE+T reliable?
The price and inventory of MAX4581EEE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4581EEE+T is usually 5 days.
3.What payment methods are accepted for MAX4581EEE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4581EEE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4581EEE+T?
MAX4581EEE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4581EEE+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 MAX4581EEE+T?
For technical support, including MAX4581EEE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4581EEE+T requirements.
6.How does Aetrix verify that MAX4581EEE+T is sourced from the original manufacturer or authorized distributors?
All MAX4581EEE+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 MAX4581EEE+T meets industry standards.
7.What is the process for return or replacement of MAX4581EEE+T?
All MAX4581EEE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4581EEE+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 MAX4581EEE+T part is unused and in its original packaging.
Return procedure for MAX4581EEE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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