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Analog Devices Inc./Maxim Integrated MAX4781EUE+T
- Part No.:
- MAX4781EUE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4781EUE+T.pdf
- Description:
- IC MUX 8:1 1OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,981
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Product details
Overview
MAX4781EUE+T from Maxim Integrated is an 8-channel CMOS analog multiplexer configured as a single-pole, eight-throw (SP8T) switch with 0.7Ω on-resistance at +3V supply, 11ns turn-on time, and rail-to-rail signal handling capability. It operates from +1.6V to +3.6V, consumes <3µW quiescent power, and is used in low-voltage audio routing and battery-powered data-acquisition systems.
For engineers reviewing the MAX4781EUE+T datasheet, MAX4781EUE+T pinout, MAX4781EUE+T application, or MAX4781EUE+T equivalent, key selection criteria include on-resistance flatness (0.1Ω), channel-to-channel RON match (0.3Ω), break-before-make timing (2ns), and compatibility with +1.8V CMOS logic levels.
Technical Context
The MAX4781EUE+T implements a high-speed, low-voltage SP8T analog switch using CMOS process technology. Its internal architecture supports bidirectional signal flow, features integrated ESD protection diodes on all analog pins, and uses address inputs A/B/C with ENABLE control to select one of eight X0–X7 inputs to the common output X.
It delivers consistent performance across its full operating temperature range (−40°C to +85°C), maintains sub-1Ω on-resistance down to +2.7V supply, and achieves <150pC charge injection-critical for precision sampling and low-distortion audio paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 0.7Ω at +3V supply - enables minimal voltage drop and signal attenuation in low-impedance analog paths |
| RON Matching | 0.3Ω max difference between channels - ensures consistent gain/attenuation across multiplexed signals |
| Turn-On Time (tON) | 11ns typical - supports high-speed switching in data acquisition and digital audio routing |
| Analog Signal Range | Rail-to-rail (0V to VCC) - allows full-swing signal handling without clipping at 1.6V–3.6V supplies |
| Supply Voltage Range | +1.6V to +3.6V - compatible with Li-ion, coin-cell, and low-power MCU I/O domains |
| Charge Injection | −110pC typical - limits voltage glitch on sampled-hold nodes in precision ADC front-ends |
| Off-Isolation | −90dB at 1MHz - suppresses crosstalk between inactive channels in multi-source systems |
Pinout & Package
MAX4781EUE+T is housed in a 16-pin TSSOP package (4.4mm × 5.0mm body, 0.65mm pitch) with exposed pad connected to GND for thermal and EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | X | Common analog output terminal - bidirectional, connects to selected X0–X7 channel |
| 2–3, 5–6, 10–11, 13–14, 16 | X0–X7 | Analog input terminals - eight independent SPST switch inputs routed to X when selected |
| 4 | ENABLE | Digital enable control - logic high disables all switches; tied low for normal operation |
| 7 | N.C. | No internal connection - must be left floating or grounded per layout best practice |
| 8 | GND | Ground reference for analog and digital circuitry - connects to system ground plane |
| 9–11 | A, B, C | 3-bit binary address inputs - decode X0–X7 selection (L/L/L = X0, H/H/H = X7) |
| 12, 15 | VCC | Single positive supply - powers analog switch core and digital control logic (1.6V–3.6V) |
Key Features
| Feature | Design Value |
|---|---|
| 0.7Ω RON at +3V | Minimizes insertion loss and THD (0.045% @ 20Hz–20kHz) in audio and sensor signal chains |
| 11ns tON/4ns tOFF | Enables >30MHz multiplexing rates for high-throughput data acquisition systems |
| +1.8V CMOS logic compatibility | Direct interface with low-voltage microcontrollers and FPGAs without level-shifting |
| 0.1Ω RON flatness | Maintains linear gain across full analog input range - critical for precision instrumentation |
| Pin-compatible with 74HC4051 | Drop-in replacement for legacy designs - same pinout and truth table behavior |
Applications
| Audio Signal Routing | Battery-Operated Equipment |
|---|---|
|
Use Scenario: Switching between multiple microphone inputs or headphone outputs in portable audio devices. IC Role / Device Role / Timing Role: SP8T analog multiplexer selecting one of eight audio sources to a shared codec or amplifier path. Use Value: 0.7Ω RON and 0.045% THD preserve signal fidelity; <3µW quiescent power extends battery life in always-on voice interfaces. |
Use Scenario: Managing sensor inputs (temperature, accelerometer, ambient light) in wearables and IoT edge nodes. IC Role / Device Role / Timing Role: Low-voltage analog mux enabling sequential sampling of multiple sensors by a single ADC channel. Use Value: +1.6V operation supports direct connection to coin-cell or single-Li-ion supplies; 11ns switching minimizes channel settling overhead. |
| Low-Voltage Data-Acquisition Systems | Communications Circuits |
|
Use Scenario: Multiplexing differential sensor bridges or thermocouple inputs into a precision delta-sigma ADC. IC Role / Device Role / Timing Role: Rail-to-rail SP8T switch providing matched on-resistance and low charge injection for accurate ratiometric measurements. Use Value: 0.3Ω RON matching and −110pC charge injection reduce measurement error and offset drift in 16-bit+ systems. |
Use Scenario: Signal path selection in RF front-end test equipment or software-defined radio (SDR) calibration loops. IC Role / Device Role / Timing Role: High-isolation analog switch routing IF or baseband signals between filters, amplifiers, and ADC/DAC paths. Use Value: −90dB off-isolation at 1MHz and −80dB crosstalk suppress interference in multi-channel communication test fixtures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4781ETE+ | Same die, 3mm × 3mm thin QFN package - lower thermal resistance, smaller footprint, no leaded pins | Preferred for space-constrained PCBs and thermally demanding environments | Select MAX4781ETE+ when board area or thermal performance outweighs reworkability concerns |
| 74HC4051D,653 | Higher RON (80Ω typical at 4.5V), slower switching (tON ≈ 60ns), wider supply range (2V–10V) | Suitable for general-purpose digital control but not precision low-voltage analog routing | Choose only if cost sensitivity dominates and 0.7Ω RON/11ns speed are non-critical |
Compared with MAX4781ETE+, the MAX4781EUE+T offers easier solder inspection and rework via gull-wing leads, while 74HC4051D,653 trades significant analog performance for broader supply flexibility and lower unit cost in non-precision roles.
Availability
MAX4781EUE+T is available at Aetrix Electronics and suitable for battery-operated equipment, audio signal routing, and low-voltage data-acquisition systems requiring stable component supply and long-term production continuity.
Supply support for MAX4781EUE+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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX4781EUE+T belongs to Maxim's high-speed, low-voltage analog switch family, designed specifically for precision signal routing in space- and power-constrained portable electronics.
FAQ
What is the maximum continuous current rating for MAX4781EUE+T?
The MAX4781EUE+T supports ±150mA continuous current per analog channel (X0–X7 and X). This rating applies under specified thermal conditions and ensures reliable operation in audio output buffering and sensor signal conditioning applications without derating at +25°C ambient.
Does MAX4781EUE+T support rail-to-rail analog signal operation?
Yes, MAX4781EUE+T supports rail-to-rail analog signal operation from 0V to VCC, verified across its full supply range (+1.6V to +3.6V). This enables full-swing signal integrity in low-voltage systems such as single-cell battery-powered devices and 1.8V logic domain interfaces.
Is MAX4781EUE+T pin-compatible with industry-standard analog multiplexers?
Yes, MAX4781EUE+T is pin-compatible and functionally identical to the 74HC4051 in single-supply configurations, sharing the same TSSOP-16 pinout, address logic (A/B/C), and ENABLE behavior. This allows drop-in replacement without PCB modification.
What is the typical charge injection value for MAX4781EUE+T and why does it matter?
MAX4781EUE+T exhibits −110pC typical charge injection at +3V supply. This parameter directly impacts voltage glitch magnitude on high-impedance nodes (e.g., sample-and-hold capacitors), making it critical for maintaining accuracy in precision ADC front-ends and switched-capacitor circuits.
Can MAX4781EUE+T operate from a +1.8V supply, and how does performance change?
Yes, MAX4781EUE+T operates from +1.8V, with verified RON = 1.6Ω (typ), tON = 17ns (typ), and VIH = 1.0V. Performance degrades moderately versus +3V operation but remains functional for ultra-low-power applications where supply headroom is constrained.
MAX4781EUE+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):
- 1Ohm
- Channel-to-Channel Matching (ΔRon):
- 300mOhm
- Voltage - Supply, Single (V+):
- 1.6V ~ 3.6V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 25ns, 15ns
- -3db Bandwidth:
- -
- Charge Injection:
- -110pC
- Channel Capacitance (CS(off), CD(off)):
- 38pF, 310pF
- Current - Leakage (IS(off)) (Max):
- 2nA
- Crosstalk:
- -80dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
MAX4781EUE+T FAQ
1.How can I place an order for MAX4781EUE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4781EUE+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 MAX4781EUE+T reliable?
The price and inventory of MAX4781EUE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4781EUE+T is usually 5 days.
3.What payment methods are accepted for MAX4781EUE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4781EUE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4781EUE+T?
MAX4781EUE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4781EUE+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 MAX4781EUE+T?
For technical support, including MAX4781EUE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4781EUE+T requirements.
6.How does Aetrix verify that MAX4781EUE+T is sourced from the original manufacturer or authorized distributors?
All MAX4781EUE+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 MAX4781EUE+T meets industry standards.
7.What is the process for return or replacement of MAX4781EUE+T?
All MAX4781EUE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4781EUE+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 MAX4781EUE+T part is unused and in its original packaging.
Return procedure for MAX4781EUE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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