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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 MUX 8:1 80OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,925
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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 at 1MHz), high off-isolation (<−74dB), and AEC-Q100-compatible variants for automotive signal routing.
Technical Context
The MAX4581EPE+ implements a single 8:1 analog multiplexer architecture with three address inputs (A, B, C) and an active-low ENABLE terminal. Its internal CMOS switch array uses bipolar-supply referenced gate drive to support rail-to-rail analog input ranges bounded by VCC and VEE, with ESD diodes clamping signals beyond supply rails.
Digital control logic features fixed 0.8V/2.4V thresholds for TTL/CMOS compatibility across +5V or ±5V operation. Switching dynamics are characterized by address transition time ≤200ns, enable turn-on/off times ≤200ns, and break-before-make interval of 4–20ns-critical for preventing signal shorting during channel reconfiguration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Configuration | 8-channel single-pole, eight-throw (8:1) analog multiplexer |
| Supply Range | ±2V to ±6V dual or +2V to +12V single-supports wide input signal swing without level-shifting |
| On-Resistance | 80Ω max at ±5V supplies-ensures minimal signal attenuation in precision sensor interfaces |
| Off-Leakage Current | 1nA max at +25°C-preserves accuracy in high-impedance measurement paths |
| Crosstalk | <−96dB at 1MHz (50Ω)-prevents interference between adjacent channels in multi-signal routing |
| Off-Isolation | <−74dB at 1MHz (50Ω)-blocks unwanted signal coupling to disabled channels |
| THD | <0.02% at 600Ω load, 20Hz–20kHz-maintains fidelity in audio and instrumentation signal paths |
Pinout & Package
MAX4581EPE+ is housed in a 16-pin plastic DIP (PDIP) package with through-hole mounting. Pin 1 is X0 (analog input 0); pins 2–7 and 9–12 are X1–X7 and address/control inputs (A, B, C, ENABLE); pin 8 is GND; pin 13 is VCC; pin 14 is VEE; pin 15 is X (common output); pin 16 is unassigned (NC).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| X0–X7 | Analog input channels 0–7 | Bi-directional, rail-to-rail capable terminals-no internal ground reference; signal range limited only by VCC/VEE |
| X | Common analog output | Single-pole connection point selected via A/B/C address bits; interchangeable as input or output |
| A, B, C | Digital address inputs | Binary-encoded selection of one of eight Xn inputs; logic thresholds fixed at 0.8V/2.4V for TTL/CMOS compatibility |
| ENABLE | Active-low channel enable | Pulls all switches open when high; enables multiplexing function only when low |
| VCC / VEE | Positive/negative analog supply | Set analog signal bounds and power internal CMOS switches; VEE tied to GND for single-supply operation |
| GND | Digital ground reference | Reference for logic inputs only; no connection to analog signal paths-avoids ground-loop injection |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog switching | Supports full VEE-to-VCC signal range without clipping-enables direct interfacing with op-amps and ADCs |
| Guaranteed on-resistance match | ΔRON ≤10Ω across channels at ±5V-minimizes gain error in multi-channel calibration systems |
| Low charge injection | 0.5–5pC-reduces voltage glitch on sampled-hold nodes in data acquisition front-ends |
| TTL/CMOS logic compatibility | Fixed 0.8V/2.4V thresholds independent of supply-eliminates need for external level shifters with microcontroller GPIO |
| Break-before-make timing | 4–20ns-prevents momentary shorting between channels during address transitions |
Applications
| Battery-Powered Data Acquisition | Automotive Sensor Signal Routing |
|---|---|
Use Scenario: Multiplexing outputs from 8 temperature, pressure, or current sensors into a single ADC input in portable test equipment. IC Role / Device Role / Timing Role: 8:1 analog multiplexer selecting sensor signals under microcontroller address control with ENABLE-gated channel activation. Use Value: 1nA off-leakage preserves high-impedance sensor node accuracy; 80Ω on-resistance ensures <0.1% gain error at 10kΩ source impedance. | Use Scenario: Routing CAN, LIN, or analog sensor signals (e.g., throttle position, coolant temp) in engine control units operating across −40°C to +85°C. IC Role / Device Role / Timing Role: High-reliability analog switch enabling flexible signal path configuration without mechanical relays. Use Value: −40°C to +85°C temperature rating and AEC-Q100 qualified variants ensure robustness; <−74dB off-isolation prevents cross-talk between safety-critical signals. |
| Audio Signal Selection | Communications Circuit Switching |
Use Scenario: Selecting between 8 microphone or line-level audio inputs in professional mixer hardware. IC Role / Device Role / Timing Role: Low-distortion analog multiplexer handling bidirectional AC-coupled audio paths with minimal harmonic generation. Use Value: <0.02% THD at 600Ω load maintains audio fidelity; <−96dB crosstalk prevents bleed between input channels. | Use Scenario: Configuring RF front-end signal paths-switching between antenna diversity branches, filter banks, or PA/low-noise amplifier paths in base station transceivers. IC Role / Device Role / Timing Role: General-purpose analog switch providing reconfigurable signal routing in IF/RF subsystems. Use Value: 50MHz usable bandwidth and flat on-resistance vs. voltage ensure stable impedance matching; low charge injection avoids transient glitches during fast reconfiguration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4051ACPE+ | Same 8:1 architecture but rated for 0°C to +70°C only; higher on-resistance (100Ω typ at ±5V) | Limited to commercial-temperature industrial controls-not suitable for extended-temperature automotive or outdoor deployments | Select MAX4581EPE+ when extended temperature range (−40°C to +85°C) and lower on-resistance are required |
| ADG1408BRUZ | 8:1 mux with 4.7Ω on-resistance but requires ≥±4.5V dual supply or ≥9V single supply; higher supply current (200µA) | Better performance in low-RON precision instrumentation, but incompatible with sub-±4.5V or +2V–+5V battery systems | Select MAX4581EPE+ for ultra-low-voltage operation down to +2V single supply and minimal leakage in portable designs |
Compared with MAX4051ACPE+, MAX4581EPE+ offers extended temperature range and lower on-resistance; compared with ADG1408BRUZ, it enables operation from +2V single supply and delivers superior leakage performance-making it optimal for battery-constrained, wide-temperature, and high-impedance applications.
Availability
MAX4581EPE+ is available at Aetrix Electronics and suitable for battery-operated equipment, automotive sensor interfaces, and low-voltage data-acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
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 industrial, automotive, communications, and computing markets.
The MAX4581 series belongs to Maxim's low-voltage analog switch/multiplexer product line, engineered specifically for rail-to-rail signal routing in space- and power-constrained systems where leakage, distortion, and supply flexibility are critical.
FAQ
What is the maximum analog signal voltage range supported by the MAX4581EPE+?
The MAX4581EPE+ supports rail-to-rail analog signals bounded by its supply rails: with ±5V dual supplies, the full range is −5V to +5V; with +5V single supply (VEE = GND), the range is 0V to +5V. Absolute maximum analog input is (VEE − 0.3V) to (VCC + 0.3V), per datasheet limits. This makes MAX4581EPE+ suitable for interfacing directly with op-amps and ADCs without external level shifting.
Does the MAX4581EPE+ require external pull-up or pull-down resistors on its address lines (A, B, C)?
No, the MAX4581EPE+ does not require external pull-up or pull-down resistors on A, B, or C inputs. Its digital inputs have fixed TTL/CMOS-compatible thresholds (0.8V low, 2.4V high) and draw less than ±1µA input current-allowing direct connection to microcontroller GPIO pins. Internal design ensures stable logic states without external biasing, simplifying PCB layout and reducing BOM count for MAX4581EPE+ implementations.
Can the MAX4581EPE+ be used in a single-supply configuration with VEE grounded?
Yes, the MAX4581EPE+ fully supports single-supply operation with VEE connected to GND. In this mode, it operates from +2V to +12V on VCC, maintaining rail-to-rail analog switching from 0V to VCC. Key specs-including 150Ω max on-resistance at +5V and 1nA off-leakage at +25°C-are guaranteed under single-supply conditions, making MAX4581EPE+ ideal for battery-powered systems where negative supplies are impractical.
What is the significance of the "E" in MAX4581EPE+ temperature grade?
The "E" in MAX4581EPE+ denotes the extended industrial temperature range of −40°C to +85°C. This distinguishes it from the "C" grade (0°C to +70°C) and "A" grade (−40°C to +125°C). The MAX4581EPE+ is therefore qualified for deployment in automotive under-hood modules, outdoor industrial controllers, and portable medical devices where ambient temperatures exceed commercial limits-ensuring reliable MAX4581EPE+ operation across harsh environmental conditions.
How does the ENABLE pin function in the MAX4581EPE+?
The ENABLE pin on the MAX4581EPE+ is active-low: when pulled high (≥2.4V), all internal switches open regardless of A/B/C address state-effectively disabling the multiplexer. When pulled low (≤0.8V), normal address-controlled channel selection resumes. This provides system-level control over signal routing, enabling power-saving modes or fault-safe shutdown. Unlike some muxes, MAX4581EPE+ does not invert logic; ENABLE directly gates the switch array without modifying address decoding behavior.
MAX4581EPE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- 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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