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Analog Devices Inc./Maxim Integrated MAX4581CSE+T
- Part No.:
- MAX4581CSE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4581CSE+T.pdf
- Description:
- IC MUX 8:1 80OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
MAX4581CSE+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 precise signal routing in battery-powered data-acquisition front-ends.
For engineers reviewing the MAX4581CSE+T datasheet, MAX4581CSE+T pinout, MAX4581CSE+T application, or MAX4581CSE+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 compatibility with 74HC4051 pinout for drop-in replacement in legacy designs.
Technical Context
The MAX4581CSE+T implements a single 8:1 analog multiplexer architecture using CMOS transmission-gate switches driven by decoded A/B/C address inputs and an active-low ENABLE control. Its internal logic translates TTL/CMOS-level digital inputs into full-rail analog gate drive signals referenced to VCC and VEE, enabling bidirectional rail-to-rail analog conduction without ground reference.
Switching performance is characterized by address transition time (90–200ns), enable turn-on/off times (100–200ns), and break-before-make interval (4–20ns), all measured under 300Ω load and 35pF capacitance. Analog signal integrity is maintained via low distortion (<0.02% THD at 600Ω), high off-isolation (−74dB), and low crosstalk (−96dB for MAX4582 variant).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±2V to ±6V dual or +2V to +12V single-supports wide input voltage flexibility without level-shifting circuitry |
| On-Resistance (RON) | 80Ω max at ±5V-ensures minimal signal attenuation and gain error in precision sensor interfaces |
| Off-Leakage Current | 1nA max at +25°C-critical for maintaining accuracy in high-impedance measurement paths |
| Logic Thresholds | 0.8V to 2.4V-guarantees reliable operation with standard 5V TTL/CMOS controllers |
| Off-Isolation | −74dB at 1MHz-prevents signal coupling between unselected channels in RF-adjacent circuits |
| Charge Injection | 0.5–5pC-limits voltage glitch on high-impedance nodes during channel switching |
| THD | <0.02% at 600Ω, 20Hz–20kHz-preserves fidelity in audio and instrumentation signal chains |
Pinout & Package
MAX4581CSE+T is supplied in a 16-pin narrow SO (Small Outline) package with exposed pad option not applicable. Pin functions are defined per Maxim's CD4051-compatible nomenclature: pins 1–8 and 12–15 serve as analog I/O (X0–X7), pin 3 is common output X, pins 11/10/9 are address inputs A/B/C, pin 16 is VCC, pin 7 is GND, pin 6 is VEE, and pin 8 is ENABLE.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| X0–X7 | Analog switch inputs | Bidirectional, interchangeable I/O pins-no fixed input/output assignment; each supports rail-to-rail analog voltage swing |
| X | Common analog output | Single-pole connection point selected by A/B/C address bits; passes signal from one of X0–X7 when enabled |
| A, B, C | Digital address inputs | 3-bit binary decoder controlling channel selection; logic thresholds 0.8V/2.4V ensure direct interface with 5V microcontrollers |
| ENABLE | Active-low enable | Pulls all switches open when high; allows global disable without changing address state |
| VCC / VEE | Positive/negative supply rails | Set analog signal range limits and power internal CMOS switches; VEE tied to GND for single-supply operation |
| GND | Digital ground reference | Reference for logic inputs only; analog signals float between VCC and VEE with no ground path |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog switching | Signals swing from VEE to VCC without clipping-enables full dynamic range utilization in ±5V or +12V systems |
| Guaranteed RON match | ΔRON ≤ 10Ω across channels-minimizes gain mismatch in multi-channel instrumentation amplifiers |
| TTL/CMOS logic compatibility | Valid 0.8V/2.4V thresholds at VCC = +5V-eliminates need for external level shifters in mixed-signal MCU interfaces |
| Low distortion & crosstalk | <0.02% THD and −96dB crosstalk-preserves signal integrity in audio routing and multi-sensor data acquisition |
| Break-before-make timing | 4–20ns-prevents momentary shorting between channels during address transitions, critical for fault-tolerant designs |
Applications
| Audio Signal Routing | Portable Data Acquisition |
|---|---|
Use Scenario: Switching between multiple microphone or line-level inputs in a handheld audio recorder. IC Role / Device Role / Timing Role: 8:1 analog multiplexer selecting one input to feed a shared ADC or amplifier stage. Use Value: 80Ω RON and <0.02% THD preserve signal fidelity; ±2V to ±6V operation enables direct interface with low-noise op-amps. | Use Scenario: Multiplexing outputs from 8 temperature, pressure, or current sensors in a battery-powered IoT node. IC Role / Device Role / Timing Role: Low-leakage analog front-end switch enabling sequential sampling without cross-channel interference. Use Value: 1nA off-leakage prevents loading of high-Z sensor outputs; +2V to +12V supply range matches Li-ion or alkaline battery voltages. |
| Automotive Sensor Hub | Communications Interface Switching |
Use Scenario: Consolidating analog signals from cabin ambient sensors (CO₂, humidity, light) in a vehicle infotainment module. IC Role / Device Role / Timing Role: Rail-to-rail multiplexer interfacing with 5V automotive microcontroller ADC inputs. Use Value: −74dB off-isolation prevents EMI-induced coupling between sensor channels; AEC-Q100 qualified variants available for extended temp range. | Use Scenario: Dynamic reconfiguration of analog signal paths in a software-defined radio front-end. IC Role / Device Role / Timing Role: High-speed analog switch enabling frequency-agile signal routing between filters, mixers, and ADCs. Use Value: 90–200ns address transition time supports rapid channel hopping; 50Ω system crosstalk spec ensures clean RF signal separation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG408BRZ | 80Ω RON at ±15V, higher supply voltage requirement; 25nA off-leakage at +25°C vs. 1nA for MAX4581CSE+T | Targeted at industrial PLCs with ±15V rails; less suitable for low-leakage battery-powered designs | Select ADG408BRZ only when operating above ±10V or requiring higher ESD tolerance (4kV HBM) |
| 74HC4051D | 120Ω RON at +5V, no guaranteed RON matching, 100nA off-leakage-lower performance and no production testing for leakage specs | General-purpose logic-family mux; lacks rail-to-rail support and guaranteed analog specs for precision use | Choose 74HC4051D for cost-sensitive non-critical routing where leakage <10nA is acceptable |
Compared with ADG408BRZ and 74HC4051D, MAX4581CSE+T offers superior leakage control (1nA), tighter RON matching (≤10Ω), and verified rail-to-rail operation down to +2V-making it optimal for portable, low-power, and precision analog signal routing where channel integrity is critical.
Availability
MAX4581CSE+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 and long-term manufacturability.
Supply support for MAX4581CSE+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/multiplexer product line, engineered specifically for rail-to-rail signal integrity, ultra-low leakage, and seamless integration with 5V microcontrollers in space- and power-constrained systems.
FAQ
What supply voltages does the MAX4581CSE+T support?
The MAX4581CSE+T supports dual supplies from ±2V to ±6V or a single supply from +2V to +12V. When using a single supply, VEE must be connected to GND. Operation at +2V enables compatibility with deeply discharged Li-ion batteries or energy-harvesting sources, while ±5V operation delivers optimal on-resistance (80Ω) and leakage (1nA) performance.
How does the MAX4581CSE+T handle analog signal directionality?
The MAX4581CSE+T features fully bidirectional analog I/O: any pin labeled X0–X7 or X may serve as input or output, and signals pass equally well in both directions. This eliminates polarity constraints in AC-coupled or differential signal paths. The device imposes no ground reference on analog signals-they are strictly bounded by VCC and VEE, enabling true floating operation in isolated subsystems.
Is the MAX4581CSE+T pin-compatible with industry-standard multiplexers?
Yes, the MAX4581CSE+T is pin-compatible with the 74HC4051 and MAX4051 families. Its pinout follows the original RCA CD4051 specification: X0–X7 as analog inputs, X as common output, A/B/C as address lines, and ENABLE as global inhibit. This allows direct replacement in existing layouts without PCB modification, provided supply and thermal requirements are met.
What is the maximum analog signal frequency supported by the MAX4581CSE+T?
The MAX4581CSE+T maintains flat on-loss response up to ~50MHz in 50Ω systems, though off-isolation degrades above 10MHz (−50dB at 10MHz, worsening ~20dB/decade). For audio and DC–1MHz sensor applications, its −74dB off-isolation and <0.02% THD ensure clean channel separation and fidelity. High-frequency users should verify layout-dependent parasitics and consider guard traces to mitigate capacitive coupling.
Does the MAX4581CSE+T require external protection diodes for overvoltage conditions?
No-internal ESD diodes clamp analog pins to VCC and VEE, but proper supply sequencing (VCC first, then VEE, then signals) is mandatory to avoid latch-up. If overvoltage beyond absolute maximum ratings (e.g., >VCC+0.3V or
MAX4581CSE+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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX4581CSE+T FAQ
1.How can I place an order for MAX4581CSE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4581CSE+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 MAX4581CSE+T reliable?
The price and inventory of MAX4581CSE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4581CSE+T is usually 5 days.
3.What payment methods are accepted for MAX4581CSE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4581CSE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4581CSE+T?
MAX4581CSE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4581CSE+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 MAX4581CSE+T?
For technical support, including MAX4581CSE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4581CSE+T requirements.
6.How does Aetrix verify that MAX4581CSE+T is sourced from the original manufacturer or authorized distributors?
All MAX4581CSE+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 MAX4581CSE+T meets industry standards.
7.What is the process for return or replacement of MAX4581CSE+T?
All MAX4581CSE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4581CSE+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 MAX4581CSE+T part is unused and in its original packaging.
Return procedure for MAX4581CSE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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