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Analog Devices Inc./Maxim Integrated MAX4780ETE+
- Part No.:
- MAX4780ETE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
MAX4780ETE+.pdf
- Description:
- IC SWITCH SPDT X 4 1OHM 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:100
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Product details
Overview
MAX4780ETE+ from Maxim Integrated is a low-voltage, quad 2:1 analog multiplexer IC with 0.7Ω on-resistance at +2.7V supply, 20ns turn-on time, and rail-to-rail signal handling capability. It operates from a single +1.6V to +4.2V supply, features +1.8V CMOS logic compatibility, and is packaged in a 16-pin 3mm × 3mm thin QFN-EP for space-constrained battery-powered audio routing applications.
For engineers reviewing the MAX4780ETE+ datasheet, MAX4780ETE+ pinout, MAX4780ETE+ application, or MAX4780ETE+ equivalent, this page delivers verified electrical parameters, terminal roles, real-world use cases in portable audio and data acquisition, and validated alternative parts for design continuity.
Technical Context
The MAX4780ETE+ implements four independent bidirectional 2:1 analog switches using CMOS process technology, each selecting between one normally open (NO) and one normally closed (NC) path to a common (COM) terminal under address control via A0. Its enable (EN) input provides global shutdown with high-impedance COM outputs when asserted high.
Switching performance is optimized for low-voltage systems: on-resistance flatness is 0.1Ω at +2.7V, off-isolation reaches –67dB at 1MHz, and crosstalk is –95dB - enabling high-fidelity signal routing without channel interference in multi-channel audio or sensor front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +1.6V to +4.2V single supply - supports direct integration into Li-ion and Li-poly battery systems without level-shifting. |
| On-Resistance (RON) | 0.7Ω at +2.7V, 100mA - enables <1mV drop across switch at 1mA, critical for precision low-voltage signal paths. |
| RON Flatness | 0.1Ω at +2.7V - ensures minimal THD (<0.008%) over full signal range (0V to V+), preserving audio fidelity. |
| Turn-On/Off Time | tON = 20ns, tOFF = 8ns (RL = 50Ω, CL = 35pF) - supports >10MHz switching in data-acquisition sample-and-hold circuits. |
| Logic Compatibility | +1.8V CMOS inputs - allows direct interface with 1.8V microcontrollers without external translators. |
| Off-Leakage Current | ±5nA max at +85°C - maintains signal integrity in high-impedance sensor multiplexing (e.g., thermocouples, pH electrodes). |
| Bandwidth | 123MHz –3dB on-channel bandwidth - suitable for composite video and high-speed ADC front-end switching. |
Pinout & Package
MAX4780ETE+ is housed in a 16-pin 3mm × 3mm thin QFN package with exposed pad (EP), optimized for thermal dissipation and PCB area efficiency in portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A0) | Address Input | Selects NO/NC path per switch pair; logic-controlled binary address for 2:1 selection. |
| 2 (NC1) | Normally Closed Terminal | Default analog path to COM1 when A0 = 0; remains conductive unless switched open. |
| 3 (NO1) | Normally Open Terminal | Active analog path to COM1 when A0 = 1; isolated from COM1 otherwise. |
| 4 (COM1) | Analog Switch Common Terminal | Bidirectional I/O node shared by NC1 and NO1; connects to system signal source or load. |
| 5–14 (NC2–NC4, NO2–NO4, COM2–COM4) | Channel 2–4 Analog Terminals | Three additional identical 2:1 switch sections, each with dedicated NC/NO/COM pins. |
| 15 (EN) | Enable Input | Active-low global control: EN = GND enables all switches; EN = high disables all COM outputs to high-Z. |
| 16 (V+) | Positive Supply Voltage | Single power rail for analog and digital circuitry; must be sequenced before analog signals. |
| 8, 9, 10, 11, 12 (GND, COM3, NO3, NC3, COM4) | Ground & Analog Return Paths | GND pin provides reference return; COM pins serve as bidirectional signal nodes-not ground-referenced only. |
| EP (Exposed Pad) | Thermal Ground Plane | Internally connected to GND; requires soldering to large PCB copper area for thermal management and noise reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports 0V to V+ input range without clipping or distortion - essential for full-scale battery voltage monitoring and audio line-level routing. |
| 0.1Ω RON flatness at +2.7V | Minimizes harmonic distortion across entire signal swing, enabling <0.008% THD in 20Hz–20kHz audio paths. |
| Break-before-make timing | 1ns guaranteed interval prevents momentary shorting between NC and NO paths - avoids signal glitches during channel switching. |
| Ultra-low quiescent power | <1µW supply current - extends battery life in always-on sensor hubs and wearable health monitors. |
| High off-isolation (–67dB @ 1MHz) | Prevents signal bleed between active and inactive channels in multi-source audio mixing or RF front-end switching. |
Applications
| Audio Signal Routing | Battery-Powered Data Acquisition |
|---|---|
|
Use Scenario: Switching between internal speaker, external headset, and ringtone generator in smartphones and wearables. IC Role / Device Role / Timing Role: Quad 2:1 analog multiplexer routing bidirectional audio paths with sub-20ns switching and <0.008% THD. Use Value: Enables single codec to drive multiple transducers without external amplifiers or relays, reducing BOM count and PCB area. |
Use Scenario: Multiplexing thermistor, accelerometer, and ambient light sensor outputs to a shared ADC in IoT edge nodes. IC Role / Device Role / Timing Role: Low-leakage (±5nA), low-RON analog switch providing high-impedance isolation and minimal offset error. Use Value: Maintains measurement accuracy across sensors with different output impedances while minimizing power consumption (<1µW idle). |
| Portable Video Signal Switching | PCMCIA/CardBus Interface Management |
|
Use Scenario: Selecting between camera module and HDMI transmitter outputs in handheld medical imaging devices. IC Role / Device Role / Timing Role: 123MHz bandwidth, –95dB crosstalk analog switch supporting composite video and digital video signals. Use Value: Eliminates need for discrete FET arrays or relays, enabling compact 3mm × 3mm layout for miniaturized diagnostic tools. |
Use Scenario: Managing analog signal paths (audio, modem, IRDA) on PCMCIA cards used in legacy industrial laptops. IC Role / Device Role / Timing Role: +1.8V logic-compatible, 16-pin QFN switch enabling hot-plug-safe analog routing with EN-controlled shutdown. Use Value: Provides robust signal isolation during card insertion/removal and supports legacy 3.3V/5V mixed-signal environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4784ETE+ | Replaces EN pin with second address input (A1); supports independent 2-bit addressing of all four switches instead of grouped A0 control. | Required when individual switch control is needed (e.g., simultaneous routing of four independent sources), not just paired selection. | Choose MAX4784ETE+ if your design requires per-channel addressability; MAX4780ETE+ suffices for synchronized 2:1 switching across all channels. |
| TMUX1574RTER | Lower RON (0.5Ω @ 3.3V) but higher supply minimum (1.8V); no NC terminals - only NO/COM configuration per channel. | Not suitable for fail-safe or default-path applications requiring NC functionality; better for pure signal routing where lowest on-resistance is critical. | Select TMUX1574RTER only if NC path is unnecessary and RON < 0.55Ω at 3.3V is mandatory; MAX4780ETE+ retains NC/NO flexibility and 1.6V operation. |
Compared with MAX4784ETE+, MAX4780ETE+ offers simpler control (single A0) and global enable, reducing firmware complexity in synchronized routing; versus TMUX1574RTER, it supports true 2:1 failover via NC/NO architecture and operates down to 1.6V - making it uniquely suited for ultra-low-voltage battery systems with safety-critical default paths.
Availability
MAX4780ETE+ is available at Aetrix Electronics and suitable for battery-powered systems, portable audio routing, and low-voltage data-acquisition systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX4780ETE+ 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 MAX4780ETE+ belongs to Maxim's low-voltage analog switch product line, designed specifically for energy-efficient signal routing in space- and power-constrained portable electronics.
FAQ
What is the maximum supply voltage rating for MAX4780ETE+?
The MAX4780ETE+ has an absolute maximum supply voltage (V+) of +4.6V, but its specified operational range is +1.6V to +4.2V. Operating within this 1.6V–4.2V window ensures guaranteed performance for on-resistance, switching speed, and logic compatibility. Exceeding +4.2V may degrade reliability or cause permanent damage, per Absolute Maximum Ratings.
Does MAX4780ETE+ support bidirectional signal flow?
Yes, MAX4780ETE+ supports fully bidirectional analog signal routing. Its CMOS-based switches allow current and voltage to pass equally well from COM to NO/NC or from NO/NC to COM, with identical on-resistance and leakage characteristics in either direction - critical for applications like audio line drivers and sensor excitation circuits.
How does the EN pin function on MAX4780ETE+?
The EN pin on MAX4780ETE+ is an active-low enable input. When pulled to GND, all four analog switches operate normally under A0 control. When driven high (≥VIH = +1.4V at +3V supply), all COM outputs enter high-impedance state, effectively disconnecting all signal paths - enabling system-level power gating and safe hot-swap operation in modular designs.
What is the purpose of the exposed pad (EP) on MAX4780ETE+?
The exposed pad (EP) on MAX4780ETE+ is internally connected to GND and serves as a thermal conduction path. It must be soldered to a large PCB ground plane to dissipate heat and reduce junction temperature - especially important during sustained 300mA continuous current operation. It is not intended as a signal or power connection point.
Can MAX4780ETE+ be used with a 1.8V supply?
Yes, MAX4780ETE+ operates at +1.8V supply, delivering 2Ω typical on-resistance and maintaining +1.0V logic-high compatibility. However, key performance metrics - including RON (0.7Ω), RON flatness (0.1Ω), and tON/tOFF (20ns/8ns) - are specified at +2.7V and above. At +1.8V, switching speed degrades to 25ns/10ns and RON increases, so verify timing and loss budgets for your specific signal chain.
MAX4780ETE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 1Ohm
- Channel-to-Channel Matching (ΔRon):
- 100mOhm
- Voltage - Supply, Single (V+):
- 1.6V ~ 4.2V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 25ns, 10ns
- -3db Bandwidth:
- 123MHz
- Charge Injection:
- 5pC
- Channel Capacitance (CS(off), CD(off)):
- 33pF, 60pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -95dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TQFN (3x3)
MAX4780ETE+ FAQ
1.How can I place an order for MAX4780ETE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4780ETE+ 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 MAX4780ETE+ reliable?
The price and inventory of MAX4780ETE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4780ETE+ is usually 5 days.
3.What payment methods are accepted for MAX4780ETE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4780ETE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4780ETE+?
MAX4780ETE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4780ETE+ 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 MAX4780ETE+?
For technical support, including MAX4780ETE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4780ETE+ requirements.
6.How does Aetrix verify that MAX4780ETE+ is sourced from the original manufacturer or authorized distributors?
All MAX4780ETE+ 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 MAX4780ETE+ meets industry standards.
7.What is the process for return or replacement of MAX4780ETE+?
All MAX4780ETE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4780ETE+, 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 MAX4780ETE+ part is unused and in its original packaging.
Return procedure for MAX4780ETE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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