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Analog Devices Inc./Maxim Integrated MAX4581EPE
- Part No.:
- MAX4581EPE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX4581EPE.pdf
- Description:
- IC SWITCH SP8TX1 80OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,085
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Product details
Overview
MAX4581EPE 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, 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 MAX4581EPE datasheet, MAX4581EPE pinout, MAX4581EPE application, or MAX4581EPE equivalent, key selection criteria include guaranteed on-resistance matching across channels, break-before-make timing (4–20ns), low crosstalk (<−96dB), high off-isolation (<−74dB), and operation across −40°C to +85°C industrial temperature range.
Technical Context
The MAX4581EPE implements a single 8:1 analog multiplexer architecture with three digital address inputs (A, B, C) and an active-low ENABLE terminal. Its internal CMOS switch array uses bipolar-supply-compatible gate drive circuitry to support rail-to-rail analog signal routing without level-shifting.
Switch control logic follows standard 74HC4051 truth table behavior, with all analog I/O pins bidirectional and interchangeable. The device features integrated ESD protection diodes between each analog pin and VCC/VEE, requiring proper power sequencing (VCC before VEE) to avoid latch-up or overvoltage stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±2V to ±6V dual or +2V to +12V single - enables direct interface with Li-ion, 3.3V, and 5V systems without external regulators |
| On-Resistance (RON) | 80Ω max at ±5V - ensures minimal signal attenuation and gain error in precision sensor/mux applications |
| Off-Leakage Current | 1nA max at +25°C - preserves accuracy in high-impedance measurement paths (e.g., thermocouple, pH electrode) |
| On-Leakage Current | 1nA max at +25°C - prevents DC offset drift when driving ADC reference or op-amp inputs |
| Channel Crosstalk | <−96dB at 1MHz (50Ω) - critical for multi-channel simultaneous sampling where inter-channel coupling must be minimized |
| Off-Isolation | <−74dB at 1MHz (50Ω) - maintains signal integrity when unused channels are exposed to high-frequency interference |
| Break-Before-Make Time | 4–20ns - prevents momentary shorting between input channels during address transitions |
Pinout & Package
MAX4581EPE is supplied in a 16-pin plastic DIP (PDIP) package with through-hole mounting and industry-standard 0.3-inch width. Pin 1 is marked with a notch or dot; pin numbering follows standard counter-clockwise convention from top view.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | X0–X7 Analog Inputs | Bidirectional analog terminals; any may serve as source or sink depending on channel selection |
| 9 | ENABLE | Active-low global enable; pulls all switches open when high, enabling system-level power gating |
| 10, 11, 12 | A, B, C Address Inputs | Binary-coded channel select lines (CBA = 000 selects X0, up to 111 selects X7) |
| 13 | X Output | Common analog output node; connects selected X0–X7 channel when ENABLE is low |
| 14 | GND | Digital ground reference only; no analog return path - analog signals float between VCC and VEE |
| 15 | VEE | Negative analog supply; tied to GND for single-supply operation |
| 16 | VCC | Positive analog/digital supply; powers internal logic translators and switch gates |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports full-swing signals from VEE to VCC - eliminates need for external level shifters in ±5V or +12V systems |
| Guaranteed RON match between channels | Ensures consistent gain and offset across multiplexed sensor inputs - critical for ratiometric measurements |
| TTL/CMOS logic compatibility | 0.8V–2.4V input thresholds at +5V supply - interoperates directly with microcontrollers and FPGAs without glue logic |
| Low distortion & crosstalk | <0.02% THD (600Ω), <−96dB crosstalk - preserves fidelity in audio and precision instrumentation signal chains |
| Industrial temperature range | −40°C to +85°C operation - qualified for deployment in automotive engine control units and outdoor industrial sensors |
Applications
| Automotive Sensor Multiplexing | Battery-Powered Data Loggers |
|---|---|
Use Scenario: Routing multiple thermistor, pressure, and position sensor outputs to a single ADC in an engine control module. IC Role / Device Role / Timing Role: 8:1 analog multiplexer providing channel-selectable signal path with break-before-make switching to prevent sensor cross-talk. Use Value: Enables compact, low-power ECU design using one high-resolution ADC instead of eight, reducing BOM cost and PCB area while maintaining ±0.5°C thermal measurement accuracy. | Use Scenario: Sampling voltage, current, and temperature from distributed environmental sensors powered by coin-cell batteries. IC Role / Device Role / Timing Role: Low-leakage analog switch isolating inactive sensor nodes to minimize standby current draw. Use Value: Achieves <1nA off-leakage per channel, extending battery life beyond 5 years in intermittent-sampling deployments. |
| Audio Signal Routing | Communications Circuit Switching |
Use Scenario: Selecting between microphone inputs or speaker outputs in portable VoIP handsets and conferencing systems. IC Role / Device Role / Timing Role: Bidirectional analog switch supporting full-duplex audio paths with low THD and flat frequency response up to 50MHz. Use Value: Delivers <0.02% total harmonic distortion at 1kHz and <−74dB off-isolation - meets ITU-T G.113 voice quality requirements. | Use Scenario: Reconfiguring RF front-end signal paths (e.g., antenna diversity, filter bank selection) in LTE/Wi-Fi baseband modules. IC Role / Device Role / Timing Role: High-isolation analog multiplexer routing IF signals between mixers, filters, and ADCs under digital control. Use Value: Provides <−96dB crosstalk at 1MHz and stable 80Ω on-resistance - maintains SNR >70dB in 20MHz bandwidth receivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG708BRUZ | 8-channel, 4.5Ω RON at +3V, −40°C to +85°C, 16-TSSOP - lower on-resistance but narrower supply range (+1.8V to +5.5V) | Preferred in ultra-low-voltage portable designs; unsuitable for ±5V or +12V systems | Select when lowest RON and smallest footprint are prioritized over supply flexibility |
| TS5A23157DGSR | 2-channel SPDT, 0.9Ω RON at +3.3V, −40°C to +85°C, 10-VSSOP - higher channel count density but not functionally equivalent (not 8:1) | Suitable for dual-path redundancy or differential switching; requires four devices to match MAX4581EPE's 8:1 topology | Choose for high-speed, low-RON SPDT switching where discrete channel control is needed |
Compared with ADG708BRUZ and TS5A23157DGSR, the MAX4581EPE uniquely balances wide supply adaptability (±2V to ±6V / +2V to +12V), guaranteed RON matching, and true 8:1 monolithic integration - making it optimal for industrial and automotive systems requiring robustness across diverse power domains.
Availability
MAX4581EPE is available at Aetrix Electronics and suitable for automotive sensor interfaces, battery-powered data loggers, audio routing subsystems, and communications circuit switching requiring stable component supply across extended temperature ranges.
Supply support for MAX4581EPE 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 MAX4581EPE belongs to Maxim's low-voltage analog switch/multiplexer product line, engineered specifically for rail-to-rail signal routing in space-constrained, low-power, and high-reliability systems operating across −40°C to +85°C.
FAQ
What is the maximum analog signal voltage range supported by the MAX4581EPE?
The MAX4581EPE supports rail-to-rail analog signals from VEE to VCC. With ±5V supplies, this is −5V to +5V; with +12V single supply (VEE = GND), it is 0V to +12V. Absolute maximum ratings limit VCC to 13V above VEE, and analog inputs must stay within (VEE − 0.3V) to (VCC + 0.3V) to avoid ESD diode conduction.
Does the MAX4581EPE require external pull-up or pull-down resistors on its address or enable pins?
No, the MAX4581EPE 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 draw less than ±1µA leakage current. Direct connection to microcontroller GPIOs is fully supported without additional components.
Can the MAX4581EPE be used in a single-supply configuration with VEE grounded?
Yes, the MAX4581EPE operates reliably in single-supply mode with VEE connected to GND and VCC set between +2V and +12V. In this configuration, analog signals swing from 0V to VCC. On-resistance increases to 150Ω at +5V supply, and off-leakage remains ≤5nA at +85°C - verified in the Electrical Characteristics tables.
What is the typical charge injection value of the MAX4581EPE, and how does it affect precision ADC applications?
The MAX4581EPE exhibits 0.5–5pC typical charge injection (Q), measured with 1nF load and 0V step. In precision ADC front-ends, this induces a voltage glitch ΔVOUT = Q/CL; with CL = 10nF, error is ≤0.5mV. For sub-LSB accuracy in 16-bit systems, keep CL ≥100nF or use sample-and-hold synchronization.
Is the MAX4581EPE pin-compatible with legacy 74HC4051 devices?
Yes, the MAX4581EPE is pin-compatible and functionally identical to the 74HC4051 in PDIP packaging, sharing identical pinout (X0–X7, X, A, B, C, ENABLE, VCC, GND, VEE). It also matches the MAX4051 logic diagram and electrical behavior - allowing drop-in replacement with improved on-resistance, leakage, and temperature range.
MAX4581EPE 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:
- Through Hole
- Supplier Device Package:
- 16-PDIP
MAX4581EPE FAQ
1.How can I place an order for MAX4581EPE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4581EPE 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 MAX4581EPE reliable?
The price and inventory of MAX4581EPE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4581EPE is usually 5 days.
3.What payment methods are accepted for MAX4581EPE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4581EPE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4581EPE?
MAX4581EPE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4581EPE 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 MAX4581EPE?
For technical support, including MAX4581EPE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4581EPE requirements.
6.How does Aetrix verify that MAX4581EPE is sourced from the original manufacturer or authorized distributors?
All MAX4581EPE 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 MAX4581EPE meets industry standards.
7.What is the process for return or replacement of MAX4581EPE?
All MAX4581EPE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4581EPE, 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 MAX4581EPE part is unused and in its original packaging.
Return procedure for MAX4581EPE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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