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Analog Devices Inc./Maxim Integrated MAX4581EGE
- Part No.:
- MAX4581EGE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
MAX4581EGE.pdf
- Description:
- IC SWITCH SP8TX1 80OHM 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:6,845
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Product details
Overview
MAX4581EGE from Maxim Integrated is an 8-channel CMOS analog multiplexer designed for low-voltage signal routing in battery-powered and precision analog systems. It supports ±2V to ±6V dual supplies or +2V to +12V single supply, delivers rail-to-rail analog switching, guarantees 80Ω on-resistance (±5V), 1nA off-leakage at +25°C, and operates across –40°C to +85°C. It is used in audio/video routing, low-voltage data acquisition, and communications circuits.
For engineers reviewing the MAX4581EGE datasheet, MAX4581EGE pinout, MAX4581EGE application, or MAX4581EGE equivalent, key selection criteria include guaranteed on-resistance matching, low distortion (<0.02% @ 600Ω), high off-isolation (–74dB @ 50Ω), TTL/CMOS logic compatibility, and QFN-16 EP package suitability for space-constrained PCB layouts.
Technical Context
The MAX4581EGE implements a single 8:1 analog multiplexer with address-controlled channel selection (A/B/C inputs) and global enable. Its CMOS switch architecture uses matched P/N transistor pairs to achieve low on-resistance flatness and symmetric rail-to-rail signal handling across the full analog range (VEE to VCC).
Digital control is compatible with TTL/CMOS thresholds (0.8V to 2.4V at +5V supply), and internal logic translators isolate digital supply domains from analog rails. Break-before-make timing (4–20ns) prevents signal shorting during channel transitions, while charge injection is limited to 0.5–5pC - critical for sample-hold and precision ADC front-end applications.
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 operation from Li-ion battery (3.0–4.2V) or industrial 5V/12V rails |
| On-Resistance (RON) | 80Ω max at ±5V - ensures minimal gain error and voltage drop in sensor signal paths |
| Off-Leakage Current | 1nA max at +25°C - preserves accuracy in high-impedance measurement nodes (e.g., thermocouple, pH probe) |
| Off-Isolation | –74dB at 50Ω, 1MHz - suppresses crosstalk between unused channels in multi-sensor systems |
| THD | <0.02% at 600Ω, 20Hz–20kHz - maintains fidelity in audio signal routing without audible artifacts |
| Enable Turn-On Time | 100–200ns at +25°C - supports fast channel switching in real-time data acquisition |
Pinout & Package
MAX4581EGE is housed in a 16-pin QFN package with exposed pad (G1644-1), measuring 3mm × 3mm × 0.8mm, requiring solder connection of the EP pad to VCC for thermal and electrical performance.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1–3, 5–6, 10–12, 14–15 | X0–X7 Analog Inputs | Eight bidirectional analog signal terminals; interchangeable as inputs or outputs; support rail-to-rail voltage swing |
| 4 | X Analog Output | Common output node; connects selected Xn input when enabled and address-matched |
| 7 | GND | Digital ground reference only; no analog signal reference - analog signals float between VEE and VCC |
| 8 | VEE | Negative analog supply; tied to GND for single-supply operation; sets lower bound of analog signal range |
| 9 | VCC | Positive analog/digital supply; powers internal logic translators and switch drivers; EP pad must connect to VCC |
| 13 | ENABLE | Active-high global enable; disables all switches when low - reduces leakage and power in standby mode |
| 16 | C, B, A | 3-bit binary address inputs (MSB to LSB); select one of eight channels (X0–X7) when ENABLE = high |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog switching | Supports input signals from VEE to VCC - eliminates level-shifting in ±5V or single 3.3V/5V systems |
| Guaranteed RON match | ΔRON ≤ 10Ω (±5V) - ensures consistent gain and offset across channels in multi-channel calibration |
| TTL/CMOS logic compatibility | 0.8V to 2.4V thresholds at +5V supply - interoperates directly with microcontrollers and FPGAs without level shifters |
| Low charge injection | 0.5–5pC - minimizes voltage glitch on sampling capacitors, critical for precision SAR ADC front-ends |
| High off-isolation | –74dB @ 50Ω, 1MHz - isolates inactive sensor channels from active signal path in multiplexed instrumentation |
Applications
| Portable Medical Sensors | Industrial Data Acquisition |
|---|---|
|
Use Scenario: Multiplexing thermistor, RTD, and strain gauge inputs into a single ADC channel in handheld diagnostic equipment. IC Role / Device Role / Timing Role: 8:1 analog multiplexer enabling sequential sensor readout under microcontroller address control. Use Value: 1nA off-leakage prevents measurement drift; 80Ω RON limits gain error to <0.1% in 10kΩ sensor bridges. |
Use Scenario: Routing multiple analog process signals (4–20mA loop outputs, voltage sensors) to a PLC analog input module. IC Role / Device Role / Timing Role: Low-distortion signal router with break-before-make switching to avoid cross-channel transients. Use Value: <0.02% THD preserves signal integrity; –74dB off-isolation prevents interference between 4–20mA channels. |
| Automotive Infotainment Audio | Test & Measurement Equipment |
|
Use Scenario: Switching between microphone, line-in, and Bluetooth audio sources in automotive head units. IC Role / Device Role / Timing Role: Bidirectional analog mux supporting full-duplex audio paths with minimal crosstalk. Use Value: –96dB crosstalk (per MAX4582 spec, representative of family performance) prevents source bleed-through during mute transitions. |
Use Scenario: Configuring signal paths in automated test equipment (ATE) for calibrating multichannel DMMs and oscilloscopes. IC Role / Device Role / Timing Role: Precision multiplexer with guaranteed RON flatness and low leakage for reference-grade signal routing. Use Value: RON flatness <100Ω over full signal range ensures consistent attenuation in calibrated signal chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4581ESE | Same functionality and specs, but in 16-pin narrow SO package (S16-2); no exposed pad; higher thermal resistance | Suitable for through-hole or legacy SO-based designs where QFN reflow is unavailable | Select MAX4581ESE if board assembly lacks QFN capability or requires manual rework access |
| ADG1408BRUZ | 8:1 mux with 4.7Ω RON (±15V), but higher 125pA typical off-leakage; requires ±15V or +12V supply | Better for high-precision, low-RON applications where supply rails exceed +12V or –5V | Select ADG1408BRUZ only if system already uses ±15V rails and demands sub-5Ω on-resistance |
Compared with MAX4581EGE, MAX4581ESE offers identical electrical performance in a more manufacturable SO package but sacrifices thermal efficiency and board area; ADG1408BRUZ provides significantly lower RON but requires higher supply voltages and exhibits higher leakage - making MAX4581EGE optimal for low-voltage, space-constrained, and low-leakage applications.
Availability
MAX4581EGE is available at Aetrix Electronics and suitable for portable medical devices, industrial data loggers, and automotive infotainment systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4581EGE 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The MAX4581EGE belongs to Maxim's low-voltage analog switch/multiplexer product line, engineered for precision signal routing in battery-operated and noise-sensitive systems where leakage, distortion, and supply flexibility are critical.
FAQ
What is the operating temperature range of the MAX4581EGE?
The MAX4581EGE is rated for operation from –40°C to +85°C, qualifying it for industrial and automotive under-hood environments. This extended temperature grade is confirmed in the Ordering Information table (MAX4581EGE = –40°C to +85°C), and all electrical specifications - including on-resistance, leakage, and switching times - are guaranteed across this full range.
Does the MAX4581EGE support single-supply operation?
Yes, the MAX4581EGE supports single-supply operation from +2V to +12V by connecting VEE to GND. The datasheet explicitly guarantees performance under +5V single-supply conditions, including 150Ω max on-resistance and 1nA off-leakage at +25°C. Signal range remains rail-to-rail (0V to VCC) in this configuration.
What is the purpose of the exposed pad (EP) on the MAX4581EGE QFN package?
The exposed pad on the MAX4581EGE must be soldered to VCC per the datasheet's "Chip Topographies" and "Package Information" sections. It serves dual roles: lowering thermal resistance for improved power dissipation and reducing ground bounce by providing a low-inductance return path for internal switch currents.
Can the MAX4581EGE be used as a bidirectional analog switch?
Yes, the MAX4581EGE is fully bidirectional: its X0–X7 and X pins are electrically identical and interchangeable, allowing signals to flow equally well from X to Xn or Xn to X. This is explicitly stated in the "Pin Description" section: "Input and output pins are identical and interchangeable. Any may be considered an input or output; signals pass equally well in both directions."
How does the MAX4581EGE compare to the industry-standard CD4051 in terms of compatibility?
The MAX4581EGE is pin-compatible and functionally identical to the CD4051, 74HC4051, and MAX4051, as confirmed in the "Pin Nomenclature" section. It shares the same pinout, truth table, and logic diagram - though it improves upon them with lower on-resistance (80Ω vs. ~120Ω), lower leakage (1nA vs. ~100nA), and guaranteed performance over wider supply and temperature ranges.
MAX4581EGE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- SP8T - Open/Closed
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (4x4)
MAX4581EGE FAQ
1.How can I place an order for MAX4581EGE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4581EGE 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 MAX4581EGE reliable?
The price and inventory of MAX4581EGE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4581EGE is usually 5 days.
3.What payment methods are accepted for MAX4581EGE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4581EGE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4581EGE?
MAX4581EGE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4581EGE 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 MAX4581EGE?
For technical support, including MAX4581EGE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4581EGE requirements.
6.How does Aetrix verify that MAX4581EGE is sourced from the original manufacturer or authorized distributors?
All MAX4581EGE 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 MAX4581EGE meets industry standards.
7.What is the process for return or replacement of MAX4581EGE?
All MAX4581EGE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4581EGE, 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 MAX4581EGE part is unused and in its original packaging.
Return procedure for MAX4581EGE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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