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Analog Devices Inc./Maxim Integrated MAX4581ESE+
- Part No.:
- MAX4581ESE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4581ESE+.pdf
- Description:
- IC MUX 8:1 80OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:475
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Product details
Overview
MAX4581ESE+ 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, features 80Ω on-resistance at ±5V, 1nA off-leakage at +25°C, and TTL/CMOS-compatible logic inputs. It is widely used in battery-operated audio/video routing and low-voltage data-acquisition systems.
For engineers reviewing the MAX4581ESE+ datasheet, MAX4581ESE+ pinout, MAX4581ESE+ application, or MAX4581ESE+ equivalent, key selection criteria include guaranteed on-resistance matching (±10Ω), break-before-make timing (4–20ns), off-isolation (–74dB @ 50Ω), charge injection (≤5pC), and AEC-Q100-qualified variants for automotive use.
Technical Context
The MAX4581ESE+ 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-level inputs into full-rail analog switch gate drives referenced to VCC and VEE.
It supports bidirectional signal flow with no ground reference required for analog paths; all analog terminals are limited only by VCC and VEE rails. The device guarantees rail-to-rail analog signal handling, low distortion (<0.02% THD @ 600Ω), and high-frequency performance up to 50MHz in 50Ω systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Configuration | 8-channel single-pole, 8-throw (8:1) analog multiplexer |
| Supply Range | ±2V to ±6V dual or +2V to +12V single - enables operation in battery-powered and industrial rails |
| On-Resistance | 80Ω max at ±5V - ensures minimal signal attenuation and gain error in precision signal chains |
| Off-Leakage Current | 1nA max at +25°C - preserves accuracy in high-impedance sensor or sample-hold circuits |
| Off-Isolation | –74dB @ 50Ω, 1MHz - suppresses crosstalk between inactive channels in multi-signal systems |
| Charge Injection | ≤5pC - limits voltage glitch on sampled nodes, critical for ADC front-end integrity |
| Logic Thresholds | 0.8V to 2.4V - ensures reliable interface with 3.3V/5V microcontrollers without level-shifting |
Pinout & Package
MAX4581ESE+ is housed in a 16-pin narrow SO (SOIC-N) package, RoHS-compliant, with exposed pad not present (TQFN variant has EP; this SO variant does not).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | X0 | Analog input channel 0 - bidirectional, rail-to-rail capable |
| 2 | X1 | Analog input channel 1 - interchangeable with X0–X7 as signal source or sink |
| 3 | X2 | Analog input channel 2 - shares same on-resistance and leakage specs as X0 |
| 4 | X3 | Analog input channel 3 - electrically identical to other X_ pins |
| 5 | X4 | Analog input channel 4 - no internal biasing; requires external termination if unused |
| 6 | X5 | Analog input channel 5 - supports DC to 50MHz operation per channel |
| 7 | X6 | Analog input channel 6 - matched on-resistance (ΔRON ≤10Ω) ensures channel uniformity |
| 8 | X7 | Analog input channel 7 - last channel in 8:1 mux array |
| 9 | A | LSB address input - controls binary selection of X0–X7 with B and C |
| 10 | B | Address bit 1 - together with A and C, selects one of eight analog paths |
| 11 | C | MSB address input - completes 3-bit decode for full 8-channel selection |
| 12 | ENABLE | Global enable/disable - high = active, low = all switches open (high-Z state) |
| 13 | X | Common analog output - connects to selected X0–X7 when ENABLE = high |
| 14 | GND | Digital ground reference - separate from analog signal path; no analog return path |
| 15 | VEE | Negative supply - tied to GND for single-supply operation; sets lower analog rail |
| 16 | VCC | Positive supply - powers logic and analog switches; defines upper analog rail |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports signals from VEE to VCC without clipping - essential for full-scale sensor or audio signals |
| Guaranteed on-resistance match | ΔRON ≤10Ω across all 8 channels - enables precise ratio-metric measurements and calibration |
| Low charge injection (≤5pC) | Minimizes sampling error in switched-capacitor ADCs and sample-and-hold circuits |
| TTL/CMOS logic compatibility | Operates directly with 3.3V/5V MCUs - eliminates need for external level shifters |
| Break-before-make switching | tBBM = 4–20ns - prevents momentary shorting during channel transitions |
Applications
| Portable Data Loggers | Automotive Cabin Audio Routing |
|---|---|
Use Scenario: Multiplexing multiple thermistor, RTD, or potentiometer inputs into a single ADC channel in handheld environmental monitors. IC Role / Device Role / Timing Role: 8:1 analog multiplexer enabling sequential sampling of 8 sensors with shared precision ADC resource. Use Value: Reduces BOM count and PCB area vs. discrete switch solutions while maintaining <0.02% THD and sub-1nA leakage for µV-level resolution. | Use Scenario: Routing auxiliary audio sources (Bluetooth, USB, AUX-in) to amplifier inputs in infotainment head units. IC Role / Device Role / Timing Role: Low-distortion analog switch managing bidirectional line-level audio signals under AEC-Q100 temperature range. Use Value: Delivers –74dB off-isolation and <0.02% THD to prevent audible crosstalk and preserve fidelity across source switching events. |
| Industrial PLC Analog Input Modules | Medical Patient Monitoring Front-Ends |
Use Scenario: Scanning 8-channel analog sensor inputs (4–20mA transmitters, strain gauges) in modular I/O cards. IC Role / Device Role / Timing Role: Precision multiplexer providing matched on-resistance and low leakage for calibrated current/voltage measurement paths. Use Value: ΔRON ≤10Ω and 1nA off-leakage ensure consistent gain and offset across channels, supporting 16-bit+ effective resolution. | Use Scenario: Selecting ECG, SpO₂, or temperature sensor signals into a shared analog front-end before digitization. IC Role / Device Role / Timing Role: Biomedical-grade analog switch with low charge injection (≤5pC) and high off-isolation for patient safety and signal integrity. Use Value: Prevents sampling glitches and inter-channel interference in multi-parameter vital sign acquisition systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4581CSE+ | Same pinout and electrical specs, but rated for 0°C to +70°C commercial temperature range | Not qualified for extended industrial or automotive ambient conditions | Select MAX4581CSE+ only for cost-sensitive, non-extended-temperature applications where thermal margin is sufficient |
| ADG408BRZ | 8:1 CMOS mux with 100Ω on-resistance (±15V supply), higher 25nA off-leakage at +25°C, no AEC-Q100 option | Lacks guaranteed low-leakage and automotive qualification; wider supply range but higher RON | Choose ADG408BRZ when ±15V operation is required and leakage <5nA is not critical |
Compared with MAX4581CSE+, the MAX4581ESE+ provides extended temperature support (–40°C to +85°C) and tighter leakage guarantees; versus ADG408BRZ, it offers lower on-resistance, lower leakage, and automotive qualification - making it preferable for battery-powered and automotive signal routing where precision and reliability are prioritized.
Availability
MAX4581ESE+ is available at Aetrix Electronics and suitable for portable instrumentation, automotive infotainment, and industrial PLC analog input modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4581ESE+ 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 medical applications.
The MAX4581ESE+ 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-constrained and thermally harsh environments.
FAQ
What is the maximum analog signal range supported by the MAX4581ESE+?
The MAX4581ESE+ supports rail-to-rail analog signals from VEE to VCC. With ±5V dual supplies, the analog range is –5V to +5V; with +5V single supply (VEE = GND), it is 0V to +5V. Absolute maximum ratings allow VCC up to +13V and VEE down to –0.3V, but functional analog range remains bounded by the applied supply rails. This makes MAX4581ESE+ suitable for both bipolar sensor interfaces and unipolar battery-powered systems.
Does the MAX4581ESE+ require external level-shifting when interfaced with a 3.3V microcontroller?
No, the MAX4581ESE+ does not require external level-shifting when used with a 3.3V microcontroller. Its logic inputs have guaranteed TTL/CMOS-compatible thresholds (0.8V low, 2.4V high) that function correctly with 3.3V logic outputs. The MAX4581ESE+ accepts VA, VB, VC, and ENABLE signals directly from 3.3V GPIOs, simplifying design and reducing component count in mixed-voltage systems.
How does the break-before-make timing of the MAX4581ESE+ affect signal integrity during channel switching?
With a guaranteed break-before-make time of 4–20ns, the MAX4581ESE+ prevents momentary shorting between analog channels during address transitions. This eliminates signal coupling or transient shorts that could corrupt measurements or damage downstream circuitry. In applications like multi-sensor data acquisition, this ensures clean, glitch-free channel selection - critical for maintaining accuracy in precision measurement systems using the MAX4581ESE+.
Can the MAX4581ESE+ be used in single-supply +3.3V systems, and what are the key performance trade-offs?
Yes, the MAX4581ESE+ operates from +2V to +12V single supply, including +3.3V. At +3.3V, typical on-resistance increases to ~190Ω (vs. 80Ω at ±5V), and switching times lengthen (e.g., tTRANS up to 400ns). However, leakage remains low (≤2nA off-leakage), and logic compatibility is preserved. These trade-offs are acceptable in low-speed, low-power applications such as portable sensor hubs where MAX4581ESE+ delivers optimal balance of supply flexibility and signal fidelity.
Is the MAX4581ESE+ pin-compatible with legacy industry-standard multiplexers?
Yes, the MAX4581ESE+ is pin-compatible with the industry-standard CD4051, 74HC4051, and MAX4051 families. Its pinout matches the RCA CD4051 convention (X0–X7, X, A/B/C, ENABLE, VCC, VEE, GND), enabling drop-in replacement in existing designs. Electrical improvements - including lower on-resistance, lower leakage, and enhanced THD - provide immediate performance uplift without layout changes, making MAX4581ESE+ a direct upgrade path.
MAX4581ESE+ 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-SOIC
MAX4581ESE+ FAQ
1.How can I place an order for MAX4581ESE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4581ESE+ 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 MAX4581ESE+ reliable?
The price and inventory of MAX4581ESE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4581ESE+ is usually 5 days.
3.What payment methods are accepted for MAX4581ESE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4581ESE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4581ESE+?
MAX4581ESE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4581ESE+ 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 MAX4581ESE+?
For technical support, including MAX4581ESE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4581ESE+ requirements.
6.How does Aetrix verify that MAX4581ESE+ is sourced from the original manufacturer or authorized distributors?
All MAX4581ESE+ 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 MAX4581ESE+ meets industry standards.
7.What is the process for return or replacement of MAX4581ESE+?
All MAX4581ESE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4581ESE+, 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 MAX4581ESE+ part is unused and in its original packaging.
Return procedure for MAX4581ESE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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