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Analog Devices Inc./Maxim Integrated MAX4581CUE+
- Part No.:
- MAX4581CUE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4581CUE+.pdf
- Description:
- IC MUX 8:1 80OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,653
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Product details
Overview
MAX4581CUE+ 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 MAX4581CUE+ datasheet, MAX4581CUE+ pinout, MAX4581CUE+ application, or MAX4581CUE+ equivalent, key selection criteria include guaranteed on-resistance matching across channels, low distortion (<0.02% @600Ω), high off-isolation (–74dB @50Ω), and TSSOP-16 packaging suitable for space-constrained mixed-signal routing.
Technical Context
The MAX4581CUE+ implements a single 8:1 analog multiplexer using CMOS transmission-gate architecture with independent digital address decoding (A/B/C) and global enable control. Its internal logic translators convert TTL/CMOS inputs into full-rail analog switch gate drives, enabling bidirectional signal flow without ground reference.
It features break-before-make switching (4–20ns), low charge injection (0.5–5pC), and flat on-resistance over ±3V analog input range. All analog pins include ESD diodes to VCC and VEE, requiring proper supply sequencing to avoid forward conduction during power-up.
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 - supports portable and industrial rails |
| On-Resistance | 80Ω max at ±5V - ensures minimal signal attenuation in precision sensor interfaces |
| Off-Leakage Current | 1nA max at +25°C - preserves accuracy in high-impedance measurement paths |
| Logic Compatibility | 0.8V–2.4V thresholds - interoperable with 5V TTL and CMOS without level shifters |
| Off-Isolation | –74dB @50Ω, 1MHz - suppresses crosstalk between inactive channels |
| Total Harmonic Distortion | <0.02% @600Ω, 20Hz–20kHz - maintains fidelity in audio and instrumentation signals |
Pinout & Package
MAX4581CUE+ is housed in a 16-pin TSSOP package (3.1mm × 4.4mm, 0.65mm pitch) with exposed pad not connected internally - standard for thermal dissipation in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | X0–X7 analog inputs | Bidirectional signal terminals; interchangeable as inputs or outputs |
| 9 | C address input | MSB of 3-bit channel select (CBA = 000 to 111 selects X0–X7) |
| 10 | B address input | Mid-bit of 3-bit channel select |
| 11 | A address input | LSB of 3-bit channel select |
| 12 | ENABLE | Active-high global enable - disables all switches when low |
| 13 | X | Common analog output terminal - connects to selected X0–X7 |
| 14 | GND | Digital ground reference for logic circuitry only; no analog return path |
| 15 | VEE | Negative analog supply - tied to GND for single-supply operation |
| 16 | VCC | Positive analog/digital supply - powers both switch core and logic |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports signals from VEE to VCC - eliminates clipping in ±5V or +5V systems |
| Guaranteed on-resistance match | ΔRON ≤ 10Ω - critical for matched gain/attenuation in multi-channel calibration |
| Low crosstalk | –96dB @50Ω - enables simultaneous high-frequency channel monitoring without interference |
| Break-before-make timing | 4–20ns - prevents momentary shorting during channel transitions in sensitive circuits |
| Charge injection control | 0.5–5pC - minimizes voltage glitch on high-Z nodes during switching |
Applications
| Battery-Operated Data Loggers | Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing multiple thermistor or RTD inputs into a single ADC channel in handheld test equipment. IC Role / Device Role / Timing Role: Analog multiplexer providing low-leakage, low-RON signal selection under 3.3V battery power. Use Value: 1nA off-leakage preserves microamp-level sensor bias currents; 80Ω RON limits gain error to <0.1% in 10kΩ source impedance designs. | Use Scenario: Switching between microphone preamp outputs and line-level inputs in portable audio mixers. IC Role / Device Role / Timing Role: Bidirectional analog switch routing AC-coupled audio paths with minimal THD. Use Value: <0.02% THD and –74dB off-isolation prevent audible artifacts and channel bleed at line level. |
| Automotive Sensor Interface | Low-Voltage Communications Circuits |
Use Scenario: Selecting among multiple CAN transceiver diagnostic lines in an ECU's built-in self-test module. IC Role / Device Role / Timing Role: High-reliability analog switch enabling isolation of faulted nodes during diagnostics. Use Value: Guaranteed operation from 0°C to +70°C and ±2V to ±6V supply range matches automotive sub-system requirements. | Use Scenario: Configuring differential analog front-end paths for RS-485 or LVDS receiver calibration in industrial gateways. IC Role / Device Role / Timing Role: Precision multiplexer selecting reference voltages or test signals into receiver input stages. Use Value: On-resistance flatness ≤100Ω over ±3V range ensures consistent common-mode rejection during calibration sweeps. |
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 configuration, but higher on-resistance (100Ω @ ±5V) and wider temp range (–40°C to +85°C) | Higher RON increases gain error in precision sensor interfaces; better suited for general-purpose routing | Select MAX4051ACPE+ only if extended temperature range is required and 20Ω higher RON is acceptable |
| ADG1408BRUZ | Lower on-resistance (4.7Ω @ ±5V), but requires minimum ±4.5V supplies and lacks single-supply support below +9V | Incompatible with +3.3V or +5V-only systems; superior for high-fidelity audio where ultra-low RON matters | Choose ADG1408BRUZ only in ±5V or ±15V systems demanding sub-5Ω RON and lower THD |
Compared with MAX4581CUE+, MAX4051ACPE+ trades lower cost and wider temperature range for higher on-resistance, while ADG1408BRUZ delivers dramatically lower RON but sacrifices single-supply flexibility and increases system supply complexity.
Availability
MAX4581CUE+ is available at Aetrix Electronics and suitable for battery-operated equipment, audio and video signal routing, and low-voltage data-acquisition systems requiring stable component supply and RoHS-compliant TSSOP packaging.
Supply support for MAX4581CUE+ 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, medical, and communications applications.
The MAX4581CUE+ belongs to Maxim's low-voltage analog switch/multiplexer product line, engineered for rail-to-rail signal integrity, low leakage, and seamless integration into space- and power-constrained systems.
FAQ
What supply configurations does the MAX4581CUE+ support?
The MAX4581CUE+ supports dual supplies from ±2V to ±6V and single supplies from +2V to +12V (with VEE tied to GND). At ±5V, it achieves 80Ω on-resistance and 1nA off-leakage at +25°C. Operation below +2V is not specified, and exceeding ±6V or +12V violates absolute maximum ratings.
How is the channel selection logic implemented on the MAX4581CUE+?
The MAX4581CUE+ uses three digital address inputs (A, B, C) and one ENABLE pin for channel selection. With ENABLE high, the 3-bit binary code on A/B/C selects one of eight analog inputs (X0–X7) to connect to the common output X. The truth table is fully decoded - for example, CBA = 011 selects X3. ENABLE low disconnects all channels.
Does the MAX4581CUE+ require external protection diodes for overvoltage conditions?
No - the MAX4581CUE+ integrates reverse ESD-protection diodes between each analog pin and both VCC and VEE. However, if analog signals may exceed VCC or fall below VEE during power-up or fault conditions, external blocking diodes (as shown in Figure 1 of the datasheet) are recommended to prevent diode conduction and potential damage.
What is the maximum frequency for maintaining usable off-isolation with the MAX4581CUE+?
The MAX4581CUE+ provides –74dB off-isolation at 1MHz in 50Ω systems, degrading at ~20dB per decade above that. For reliable channel isolation, keep operating frequencies below 10MHz (where isolation remains >–50dB). Above 20MHz, layout-dependent parasitics dominate, and off-isolation drops significantly - making it unsuitable for RF or high-speed digital switching.
Can the MAX4581CUE+ be used in bidirectional signal paths?
Yes - all analog terminals (X0–X7 and X) are fully bidirectional and electrically identical. Signals pass with equal performance in either direction, and there is no designated "input" or "output." This enables flexible use in feedback paths, loopback testing, and analog bus architectures without polarity constraints.
MAX4581CUE+ 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
MAX4581CUE+ FAQ
1.How can I place an order for MAX4581CUE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4581CUE+ 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 MAX4581CUE+ reliable?
The price and inventory of MAX4581CUE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4581CUE+ is usually 5 days.
3.What payment methods are accepted for MAX4581CUE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4581CUE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4581CUE+?
MAX4581CUE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4581CUE+ 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 MAX4581CUE+?
For technical support, including MAX4581CUE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4581CUE+ requirements.
6.How does Aetrix verify that MAX4581CUE+ is sourced from the original manufacturer or authorized distributors?
All MAX4581CUE+ 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 MAX4581CUE+ meets industry standards.
7.What is the process for return or replacement of MAX4581CUE+?
All MAX4581CUE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4581CUE+, 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 MAX4581CUE+ part is unused and in its original packaging.
Return procedure for MAX4581CUE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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