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Analog Devices Inc./Maxim Integrated MAX4581EGE+T
- Part No.:
- MAX4581EGE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
MAX4581EGE+T.pdf
- Description:
- IC MUX 8:1 80OHM 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,464
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Product details
Overview
MAX4581EGE+T from Maxim Integrated is an 8-channel CMOS analog multiplexer configured for rail-to-rail signal switching in low-voltage systems. It operates on ±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 data-acquisition front-ends.
For engineers reviewing the MAX4581EGE+T datasheet, MAX4581EGE+T pinout, MAX4581EGE+T application, or MAX4581EGE+T equivalent, key selection criteria include guaranteed on-resistance matching across channels, break-before-make timing (4–20ns), low crosstalk (<−96dB @50Ω), high off-isolation (<−74dB), and AEC-Q100-qualified variants for automotive signal routing.
Technical Context
The MAX4581EGE+T implements a single 8:1 analog multiplexer with three digital address inputs (A, B, C) and an active-low ENABLE pin. Its CMOS switch architecture uses matched P/N transistor pairs driven by level-shifted logic to support rail-to-rail analog signals up to VCC–VEE = 13V max.
It features break-before-make switching to prevent channel shorting during address transitions, with tBBM specified from 4ns to 20ns over temperature. Charge injection is tightly controlled at ≤5pC, minimizing transient errors in precision sampling circuits.
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 interface with Li-ion, 3.3V, and 5V systems |
| 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 |
| Crosstalk | <−96dB @50Ω, 1MHz - prevents interference between adjacent channels in multi-signal routing |
| Off-Isolation | <−74dB @50Ω - maintains signal integrity when unselected channels are exposed to active signals |
| Logic Thresholds | 0.8V to 2.4V - ensures reliable operation with 3.3V/5V TTL and CMOS microcontrollers |
Pinout & Package
MAX4581EGE+T is supplied in a 16-pin QSOP package (3.9mm × 4.9mm, 0.635mm pitch) with exposed pad not present - compatible with standard surface-mount reflow profiles and automated optical inspection.
| 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 |
| 9 | GND | Digital ground reference for logic circuitry only; no analog signal reference |
| 10 | VEE | Negative analog supply input; connect to GND for single-supply operation |
| 11 | VCC | Positive analog/digital supply; powers internal logic and switch drivers |
| 12, 13, 14 | A, B, C | 3-bit binary address inputs selecting one of eight Xn channels |
| 15 | ENABLE | Active-low enable; disables all switches when high (logic '1') |
| 16 | X | Common analog terminal (output/input); connects to selected Xn channel |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports signals from VEE to VCC - eliminates level-shifting in ±5V or 0–5V sensor interfaces |
| Guaranteed RON matching | ΔRON ≤ 10Ω - ensures consistent gain and offset across channels in multi-channel ADC front-ends |
| Low distortion | <0.02% THD @600Ω - preserves fidelity in audio and instrumentation signal paths |
| Break-before-make timing | 4–20ns - prevents momentary shorting during channel switching in power-sensitive applications |
| TTL/CMOS logic compatibility | 0.8V/2.4V thresholds at +5V supply - interoperable with legacy and modern microcontrollers without level shifters |
Applications
| Battery-Powered Data Acquisition | Automotive Signal Routing |
|---|---|
|
Use Scenario: Multiplexing thermistor, RTD, and potentiometer inputs into a single SAR ADC in portable test equipment. IC Role / Device Role / Timing Role: 8:1 analog multiplexer providing channel selection under microcontroller control with <20ns break-before-make interval. Use Value: Enables compact, low-power design with <1nA off-leakage preserving high-impedance sensor accuracy and 80Ω RON minimizing measurement error. |
Use Scenario: Routing multiple CAN, LIN, or sensor signals (e.g., cabin temp, seat position, door lock status) to shared diagnostic or ECU monitoring lines. IC Role / Device Role / Timing Role: AEC-Q100-qualified analog switch supporting −40°C to +125°C operation and ±5V supply rails common in vehicle subsystems. Use Value: Provides robust, low-crosstalk signal isolation (<−96dB) and guaranteed RON matching for consistent calibration across vehicle production batches. |
| Audio Signal Switching | Communications Circuit Protection |
|
Use Scenario: Selecting between multiple line-level audio sources (mic, Bluetooth DAC, aux-in) before feeding into a codec or amplifier. IC Role / Device Role / Timing Role: Low-distortion (0.02% THD), low-noise analog multiplexer with rail-to-rail capability for full-swing audio signals. Use Value: Maintains signal integrity across frequency range (20Hz–20kHz) while enabling flexible source selection without external biasing or coupling capacitors. |
Use Scenario: Isolating sensitive RF transceiver I/O lines during power-up sequencing or fault conditions in cellular/Wi-Fi modules. IC Role / Device Role / Timing Role: High off-isolation (<−74dB) analog switch used as a protection gate between antenna switch matrix and baseband processor. Use Value: Prevents RF leakage and signal coupling during standby, improving system EMI margin and reducing spurious emissions in certified wireless designs. |
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 8:1 function and pinout; rated for 0°C to +70°C (vs. −40°C to +85°C for MAX4581EGE+T) | Not qualified for extended industrial or automotive ambient environments | Select MAX4581CUE+ only for commercial-grade consumer or lab equipment with controlled thermal conditions. |
| ADG1408BRUZ | 8:1 mux with lower on-resistance (4.7Ω typical), higher supply limit (+36V), but requires ≥3V logic and lacks AEC-Q100 qualification | Higher voltage tolerance suits industrial PLC I/O; not drop-in for low-voltage battery systems | Choose ADG1408BRUZ when ultra-low RON or wide supply range is critical, and logic voltage allows 3V+ control. |
Compared with MAX4581CUE+, MAX4581EGE+T provides extended temperature reliability for harsh environments; versus ADG1408BRUZ, it offers lower logic-level requirements and automotive qualification but trades off on-resistance and voltage headroom.
Availability
MAX4581EGE+T is available at Aetrix Electronics and suitable for battery-operated equipment, automotive signal routing, and low-voltage data-acquisition systems requiring stable component supply across extended temperature ranges.
Supply support for MAX4581EGE+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 industrial, automotive, and communications markets.
The MAX4581EGE+T belongs to Maxim's low-voltage analog switch family, engineered for rail-to-rail performance, low leakage, and robust switching in space-constrained, power-sensitive systems.
FAQ
What supply voltages does the MAX4581EGE+T support?
The MAX4581EGE+T supports ±2V to ±6V dual supplies or a single +2V to +12V supply. When using single-supply operation, VEE must be tied to GND. Operation at +2V is functional but increases on-resistance and switching times; for optimal performance, use ≥+2.7V. The MAX4581EGE+T is rated for −40°C to +85°C operation under these conditions.
Is the MAX4581EGE+T pin-compatible with industry-standard analog multiplexers?
Yes, the MAX4581EGE+T is pin-compatible with the CD4051, 74HC4051, and MAX4051 families. Its pinout matches the RCA CD4051 standard (X0–X7 inputs, X common, A/B/C address, ENABLE, VCC, VEE, GND), enabling drop-in replacement in existing layouts without PCB revision - provided supply and logic voltage constraints are met.
Does the MAX4581EGE+T require external pull-up or pull-down resistors on address pins?
No, the MAX4581EGE+T does not require external biasing on A, B, C, or ENABLE pins. Its digital inputs have defined TTL/CMOS-compatible thresholds (0.8V low, 2.4V high at +5V supply) and internal input-current limits (±1µA). Direct connection to microcontroller GPIOs is sufficient; floating inputs are not permitted and may cause undefined channel selection.
How does the MAX4581EGE+T handle analog signals exceeding the supply rails?
The MAX4581EGE+T includes internal ESD diodes from each analog pin to VCC and VEE. If an analog signal exceeds VCC or falls below VEE, the corresponding diode conducts, clamping the voltage. This protects the device but risks excessive current if not limited externally. For overvoltage-prone applications, external series resistors or blocking diodes (as shown in Figure 1 of the datasheet) are recommended to limit diode current to <±20mA.
What is the maximum signal frequency supported by the MAX4581EGE+T in a 50Ω system?
In a 50Ω system, the MAX4581EGE+T maintains flat on-state response up to ~50MHz. Off-isolation degrades with frequency: −50dB at 10MHz, worsening ~20dB per decade. Crosstalk remains <−96dB up to 1MHz. For RF or high-speed digital applications above 10MHz, layout optimization (ground plane, trace length matching, guard traces) is essential to maintain specified isolation and crosstalk performance.
MAX4581EGE+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-QFN (4x4)
MAX4581EGE+T FAQ
1.How can I place an order for MAX4581EGE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4581EGE+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 MAX4581EGE+T reliable?
The price and inventory of MAX4581EGE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4581EGE+T is usually 5 days.
3.What payment methods are accepted for MAX4581EGE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4581EGE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4581EGE+T?
MAX4581EGE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4581EGE+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 MAX4581EGE+T?
For technical support, including MAX4581EGE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4581EGE+T requirements.
6.How does Aetrix verify that MAX4581EGE+T is sourced from the original manufacturer or authorized distributors?
All MAX4581EGE+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 MAX4581EGE+T meets industry standards.
7.What is the process for return or replacement of MAX4581EGE+T?
All MAX4581EGE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4581EGE+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 MAX4581EGE+T part is unused and in its original packaging.
Return procedure for MAX4581EGE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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