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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 MUX 8:1 80OHM 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,038
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Product details
Overview
MAX4581EGE+ from Maxim Integrated is an 8-channel CMOS analog multiplexer configured for rail-to-rail signal switching with ±2V to ±6V dual or +2V to +12V single supply operation. It features 80Ω on-resistance at ±5V, 1nA off-leakage at +25°C, and TTL/CMOS-compatible logic thresholds (0.8V–2.4V), enabling use in low-voltage data-acquisition systems and battery-operated audio routing.
For engineers reviewing the MAX4581EGE+ datasheet, MAX4581EGE+ pinout, MAX4581EGE+ application, or MAX4581EGE+ equivalent, key selection criteria include guaranteed on-resistance matching between channels, break-before-make timing (4–20ns), low crosstalk (< –96dB at 1MHz), high off-isolation (< –74dB), and compatibility with industry-standard 74HC4051 pinout and logic diagrams.
Technical Context
The MAX4581EGE+ implements a standard 3-bit addressable 8:1 analog multiplexer architecture with enable control, supporting bidirectional signal flow across all eight input channels (X0–X7) to a common output (X). Its internal CMOS switch array uses matched P- and N-channel transistors driven by level-translated logic to maintain rail-to-rail analog swing under ±5V or +5V supply conditions.
Logic inputs A, B, C and ENABLE interface directly with TTL/CMOS levels without external biasing; internal translators generate gate drive voltages referenced to VCC and VEE. The device guarantees monotonic on-resistance flatness and low charge injection (0.5–5pC), critical for precision sampling and low-distortion audio paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Configuration | 8-channel single-ended analog multiplexer (8:1) |
| Supply Range | ±2V to ±6V dual or +2V to +12V single - supports battery-powered and industrial rails |
| On-Resistance | 80Ω max at ±5V - ensures minimal signal attenuation in 600Ω audio/data paths |
| Off-Leakage Current | 1nA max at +25°C - preserves accuracy in high-impedance sensor front-ends |
| Logic Thresholds | 0.8V low / 2.4V high - fully compatible with +5V TTL and CMOS without level shifters |
| Break-Before-Make Time | 4–20ns - prevents momentary shorting during channel switching |
| Total Harmonic Distortion | < 0.02% at 600Ω - maintains fidelity in audio signal routing |
Pinout & Package
MAX4581EGE+ is supplied in a 16-pin QSOP package (JEDEC MO-137AA, 3.9mm × 4.9mm body, 0.635mm pitch) with exposed pad not present. Pin 1 is X0; pin 16 is VCC; pin 8 is GND; pin 7 is VEE; pin 13 is X; pin 10 is ENABLE; pins 11–12–9 are A–B–C address inputs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| X0–X7 | Analog Input Channels | Bidirectional signal terminals - any may serve as source or sink; no ground reference required |
| X | Common Output | Single-pole output node shared across all 8 channels; rail-to-rail voltage range limited by VCC/VEE |
| A, B, C | Digital Address Inputs | 3-bit binary select lines determining active channel (X0–X7); TTL/CMOS compatible |
| ENABLE | Global Enable Input | Active-high logic control - disables all switches when low, overriding address inputs |
| VCC | Positive Supply | Powers digital logic and P-channel switch drivers; sets upper analog rail limit |
| VEE | Negative Supply | Powers N-channel switch drivers; sets lower analog rail limit; tie to GND for single-supply use |
| GND | Digital Ground Reference | Reference for logic inputs only; no connection to analog signal path |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports full VEE-to-VCC swing without clipping - essential for ±5V op-amp interfaces and unipolar sensor outputs |
| Guaranteed on-resistance match | ΔRON ≤ 10Ω across channels at ±5V - enables precise gain-matching in multi-channel instrumentation |
| Low charge injection | 0.5–5pC - minimizes voltage glitch on sampled-hold nodes and ADC inputs |
| High off-isolation | < –74dB at 1MHz - suppresses crosstalk between inactive channels in dense routing |
| Pin-compatible with 74HC4051 | Direct drop-in replacement for legacy designs - reduces redesign risk and layout changes |
Applications
| Audio Signal Routing | Low-Voltage Data Acquisition |
|---|---|
Use Scenario: Switching between multiple microphone or line-level inputs in portable audio mixers and voice recorders. IC Role / Device Role / Timing Role: 8:1 analog multiplexer selecting one of eight differential or single-ended audio sources to a common codec input. Use Value: 0.02% THD and < –96dB crosstalk preserve stereo separation and dynamic range in battery-powered devices. | Use Scenario: Multiplexing sensor outputs (thermocouples, RTDs, strain gauges) into a single ADC in handheld test equipment. IC Role / Device Role / Timing Role: Precision analog switch providing low-leakage (1nA), low-offset signal path with rail-to-rail capability down to +2.7V supply. Use Value: Guaranteed on-resistance matching (≤10Ω) and flatness ensure consistent gain scaling across channels without per-channel calibration. |
| Battery-Operated Instrumentation | Communications Circuit Switching |
Use Scenario: Power-conscious signal routing in portable multimeters and environmental monitors operating from coin-cell or Li-ion batteries. IC Role / Device Role / Timing Role: Low-quiescent-current (1µA ICC/IEE) analog mux enabling long standby life while maintaining fast switching (tTRANS ≤ 200ns). Use Value: Single +3V operation with 190Ω RON allows direct interfacing with low-power microcontrollers and ADCs without supply boosting. | Use Scenario: Selecting between RF front-end paths (antenna diversity, filter banks, PA outputs) in compact IoT modems and cellular modules. IC Role / Device Role / Timing Role: High-isolation analog switch isolating unused signal paths to prevent impedance mismatch and signal reflection. Use Value: –74dB off-isolation at 1MHz suppresses intermodulation products in multi-band transceivers operating up to 50MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4581CUE+ | Same silicon, 0°C to +70°C temperature grade; TSSOP package instead of QSOP | Suitable for commercial-grade consumer electronics where extended temperature range is unnecessary | Select when cost sensitivity outweighs automotive/industrial qualification needs |
| ADG1408BRUZ | 8:1 mux with 4.7Ω on-resistance but higher 120nA off-leakage; requires ±15V or +12V supply for rail-to-rail performance | Better for high-precision, low-RON industrial DAQ; less suitable for battery operation due to higher supply and leakage | Choose for sub-5Ω RON-critical applications where power and leakage budgets allow |
Compared with MAX4581CUE+, the MAX4581EGE+ offers extended –40°C to +85°C operation and QSOP packaging for tighter board space; compared with ADG1408BRUZ, it delivers superior leakage performance and lower supply voltage flexibility at the expense of on-resistance, making it optimal for portable, low-power, and wide-temperature applications.
Availability
MAX4581EGE+ is available at Aetrix Electronics and suitable for battery-operated instrumentation, low-voltage data-acquisition systems, and communications circuit switching requiring stable component supply across industrial and automotive design cycles.
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) designs precision analog, mixed-signal, and power-management ICs for demanding industrial, automotive, and communications applications.
The MAX4581 family targets low-voltage, low-leakage analog signal routing in portable and energy-sensitive systems, emphasizing rail-to-rail operation, guaranteed matching, and compatibility with legacy 4051-style logic and pinouts.
FAQ
What is the maximum analog signal range supported by the MAX4581EGE+?
The MAX4581EGE+ supports rail-to-rail analog signals from VEE to VCC. With ±5V supplies, this yields a full –5V to +5V range; with +5V single supply (VEE = GND), the range is 0V to +5V. Operation is guaranteed from ±2V to ±6V dual or +2V to +12V single supply, and the device tolerates analog signals exceeding rails via internal ESD diodes - though clamping occurs beyond VCC + 0.3V or VEE – 0.3V.
Does the MAX4581EGE+ require external level-shifting for TTL/CMOS logic inputs?
No, the MAX4581EGE+ does not require external level-shifting. Its digital inputs (A, B, C, ENABLE) have guaranteed logic thresholds of 0.8V (low) and 2.4V (high) when operated from +5V or ±5V supplies, ensuring full compatibility with standard TTL and CMOS outputs. Thresholds scale slightly with VCC - e.g., ~3.1V high threshold at +12V - but remain within CMOS-compatible margins.
Can the MAX4581EGE+ be used in single-supply +3V systems?
Yes, the MAX4581EGE+ is fully specified for +2V to +12V single-supply operation. At +3V (VCC = 3.3V, VEE = GND), typical on-resistance is 190Ω, off-leakage remains ≤2nA at +25°C, and switching times (e.g., tTRANS ≤ 400ns) meet datasheet limits. This makes it suitable for ultra-low-power microcontroller-based data loggers and sensor hubs.
Is the MAX4581EGE+ pin-compatible with the 74HC4051?
Yes, the MAX4581EGE+ is pin-compatible and functionally identical to the 74HC4051, including matching pin assignments (X0–X7, X, A, B, C, ENABLE, VCC, VEE, GND) and truth table behavior. It also matches the MAX4051 pinout and logic diagram, allowing direct replacement in existing layouts without PCB modification.
What is the thermal performance of the MAX4581EGE+ in its QSOP package?
The MAX4581EGE+ in 16-pin QSOP has a thermal resistance θJA of 130°C/W (typical). At maximum rated power dissipation (667mW at +70°C ambient), junction temperature rise is ~87°C - well within the –40°C to +85°C operating range. Derating is linear above +70°C at 8.3mW/°C, ensuring reliable operation in sealed enclosures or elevated ambient environments.
MAX4581EGE+ 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-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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