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Analog Devices Inc./Maxim Integrated MAX4581CUE+T
- Part No.:
- MAX4581CUE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4581CUE+T.pdf
- Description:
- IC MUX 8:1 80OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,634
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Product details
Overview
MAX4581CUE+T 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, features 80Ω on-resistance at ±5V, 1nA off-leakage at +25°C, and TTL/CMOS-compatible logic inputs - enabling use in battery-powered audio routing and low-voltage data acquisition.
For engineers reviewing the MAX4581CUE+T datasheet, MAX4581CUE+T pinout, MAX4581CUE+T application, or MAX4581CUE+T equivalent, key selection criteria include guaranteed on-resistance matching (±10Ω), break-before-make timing (4–20ns), low crosstalk (< –96dB @ 1MHz), high off-isolation (< –74dB), and TSSOP-16 packaging for space-constrained PCB layouts.
Technical Context
The MAX4581CUE+T implements a single 8:1 analog multiplexer architecture with three digital address lines (A, B, C) and an active-low ENABLE input. Its internal CMOS switch array uses bipolar-supply-compatible gate drive to support rail-to-rail analog signals from VEE to VCC, with ESD diodes clamping each channel to both supply rails.
Switching behavior is governed by break-before-make timing (4–20ns), charge injection (0.5–5pC), and flat on-resistance (±12Ω variation over ±4.5V signal range). Logic thresholds are fixed at 0.8V/2.4V for TTL/CMOS compatibility across +5V or ±5V operation, with no level-shifting circuitry required.
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 rail-flexible designs |
| On-Resistance | 80Ω max at ±5V - ensures minimal signal attenuation in precision sensor or audio paths |
| Off-Leakage Current | 1nA max at +25°C - preserves accuracy in high-impedance measurement circuits |
| Crosstalk | < –96dB @ 1MHz, 50Ω - prevents interference between adjacent channels in multi-signal routing |
| Off-Isolation | < –74dB @ 1MHz, 50Ω - maintains channel separation when switches are disabled |
| Logic Compatibility | TTL/CMOS thresholds (0.8V/2.4V) - interoperable with standard microcontroller GPIO without level shifters |
Pinout & Package
MAX4581CUE+T is housed in a 16-pin TSSOP package (3.0mm × 4.4mm, 0.65mm pitch) with exposed pad not connected internally. Pin functions follow industry-standard CD4051-compatible nomenclature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | X0–X7 | Eight analog input/output terminals - bidirectional, interchangeable signal paths |
| 9 | C | Digital address bit C - selects upper/lower half of 8-channel matrix |
| 10 | B | Digital address bit B - enables 4-channel grouping within selected half |
| 11 | A | Digital address bit A - final channel selection within 4-channel group |
| 12 | ENABLE | Active-low enable - disables all switches when high (logic '1') |
| 13 | X | Common analog terminal - connects to selected X0–X7 channel |
| 14 | GND | Digital ground reference - no analog signal reference; only logic supply return |
| 15 | VEE | Negative analog supply - tied to GND for single-supply operation |
| 16 | VCC | Positive analog/digital supply - powers internal logic and switch gates |
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 | ±10Ω max difference between any two channels - critical for gain-matched instrumentation |
| Low distortion | < 0.02% THD @ 600Ω - preserves fidelity in audio and sensor signal chains |
| Break-before-make switching | 4–20ns interval - prevents momentary shorting during channel transitions |
| Charge injection control | 0.5–5pC - minimizes voltage glitch on high-impedance nodes during switching |
Applications
| Audio Signal Routing | Portable Data Acquisition |
|---|---|
|
Use Scenario: Switching between multiple microphone or line-level inputs in a handheld audio recorder. IC Role / Device Role / Timing Role: 8:1 analog multiplexer selecting one of eight analog sources to a shared ADC or amplifier path. Use Value: 80Ω on-resistance and <0.02% THD preserve signal integrity; 1nA off-leakage prevents DC offset drift in high-Z mic bias networks. |
Use Scenario: Multiplexing thermocouple, RTD, and strain gauge outputs into a single precision ADC in a battery-powered sensor node. IC Role / Device Role / Timing Role: Low-leakage analog switch enabling sequential sampling of high-impedance sensors without cross-talk or settling error. Use Value: 1nA off-leakage avoids loading sensitive sensor bridges; ±5V dual-supply operation accommodates bipolar thermocouple outputs. |
| Automotive Infotainment | Industrial Control I/O |
|
Use Scenario: Routing auxiliary video inputs (RCA, HDMI audio return, USB-C DP Alt Mode) to a central display processor in automotive head units. IC Role / Device Role / Timing Role: High-isolation analog switch managing multiple video/audio source selections under AEC-Q100-aligned conditions. Use Value: <–74dB off-isolation suppresses crosstalk between video and audio paths; 0.8V/2.4V logic thresholds ensure robust MCU interface in noisy vehicle environments. |
Use Scenario: Configurable analog input conditioning for PLC analog modules supporting multiple sensor types (4–20mA, 0–10V, thermistor). IC Role / Device Role / Timing Role: Precision multiplexer enabling software-selectable input ranges and signal paths before programmable gain amplification. Use Value: Guaranteed 80Ω RON allows accurate current-to-voltage conversion; rail-to-rail operation supports full 0–10V range without external level shifting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1408BRUZ | 8:1 mux with 4.7Ω on-resistance, ±15V supply capability, but higher 125pA on-leakage and no guaranteed RON match | Better for high-voltage industrial signal chains; less suitable for low-leakage sensor front-ends | Select ADG1408BRUZ when ultra-low RON and extended supply range outweigh leakage and matching requirements. |
| TMUX1308PWR | 8:1 mux with 5.5Ω on-resistance, +1.8V to +5.5V single-supply only, 10pA off-leakage at +25°C, no dual-supply support | Optimized for low-power, single-rail IoT edge devices; incompatible with bipolar or >+5.5V systems | Choose TMUX1308PWR for battery-critical applications where supply voltage is strictly ≤+5.5V and leakage <10pA is mandatory. |
Compared with ADG1408BRUZ and TMUX1308PWR, the MAX4581CUE+T uniquely balances dual-supply flexibility (±2V to ±6V), guaranteed RON matching (±10Ω), and sub-nA leakage - making it optimal for mixed-signal systems requiring both precision and supply adaptability.
Availability
MAX4581CUE+T is available at Aetrix Electronics and suitable for battery-operated equipment, audio/video signal routing, and low-voltage data-acquisition systems requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for MAX4581CUE+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 high-performance analog, mixed-signal, and power-management ICs for demanding industrial, automotive, and communications applications.
The MAX4581CUE+T 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, matching, and supply flexibility are critical.
FAQ
What is the maximum analog signal range supported by the MAX4581CUE+T?
The MAX4581CUE+T supports rail-to-rail analog signals from VEE to VCC. With ±5V dual supplies, this means –5V to +5V; with +5V single supply (VEE = GND), the range is 0V to +5V. Absolute maximum ratings allow VEE as low as –0.3V and VCC as high as +13V, but operational signal range remains bounded by the applied supply rails.
Does the MAX4581CUE+T require external level-shifting for use with 3.3V microcontrollers?
No. The MAX4581CUE+T has TTL/CMOS-compatible logic thresholds (0.8V low, 2.4V high) that function correctly with 3.3V GPIO outputs. When powered from +5V or ±5V supplies, its address (A/B/C) and ENABLE inputs accept standard 3.3V logic levels without external translation circuitry.
How does the MAX4581CUE+T handle power-supply sequencing?
The MAX4581CUE+T recommends sequencing VCC first, then VEE, followed by logic inputs and analog signals. Improper sequencing may cause latch-up or excessive leakage. If sequencing cannot be guaranteed, external blocking diodes (as shown in Figure 1 of the datasheet) can be added - though this reduces usable analog range by ~0.7V per rail.
Is the MAX4581CUE+T pin-compatible with legacy 4051-family devices?
Yes. The MAX4581CUE+T is pin-compatible with the industry-standard CD4051, 74HC4051, and MAX4051 in TSSOP-16 packaging. Its pinout follows the original RCA CD4051 nomenclature (X0–X7, X, A/B/C, ENABLE, VCC, VEE, GND), ensuring drop-in replacement in existing layouts.
What is the thermal performance of the MAX4581CUE+T in TSSOP-16 package?
The MAX4581CUE+T in TSSOP-16 has a thermal resistance θJA of 9.4mW/°C above +70°C, yielding a maximum continuous power dissipation of 755mW at +70°C ambient. Derating is linear beyond that point, and junction temperature must remain below +150°C under all operating conditions.
MAX4581CUE+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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
MAX4581CUE+T FAQ
1.How can I place an order for MAX4581CUE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4581CUE+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 MAX4581CUE+T reliable?
The price and inventory of MAX4581CUE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4581CUE+T is usually 5 days.
3.What payment methods are accepted for MAX4581CUE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4581CUE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4581CUE+T?
MAX4581CUE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4581CUE+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 MAX4581CUE+T?
For technical support, including MAX4581CUE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4581CUE+T requirements.
6.How does Aetrix verify that MAX4581CUE+T is sourced from the original manufacturer or authorized distributors?
All MAX4581CUE+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 MAX4581CUE+T meets industry standards.
7.What is the process for return or replacement of MAX4581CUE+T?
All MAX4581CUE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4581CUE+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 MAX4581CUE+T part is unused and in its original packaging.
Return procedure for MAX4581CUE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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