Analog Devices Inc./Maxim Integrated MAX4780EUE

Overview

MAX4780EUE from Maxim Integrated is a low-voltage, quad 2:1 analog multiplexer IC operating from a single +1.6V to +4.2V supply, featuring 0.7Ω on-resistance at +2.7V, 20ns turn-on time, and rail-to-rail signal handling for battery-powered audio/video routing. It supports +1.8V CMOS logic inputs and consumes less than 1µW quiescent power.

For engineers reviewing the MAX4780EUE datasheet, MAX4780EUE pinout, MAX4780EUE application, or MAX4780EUE equivalent, key selection criteria include on-resistance flatness (0.1Ω), break-before-make timing (1ns), off-isolation (-67dB at 1MHz), and TSSOP-16 package compatibility with space-constrained portable systems.

Technical Context

The MAX4780EUE implements four independent bidirectional 2:1 analog switches using CMOS switch architecture, each with one normally open (NO) and one normally closed (NC) terminal plus a common (COM) terminal. Its address-controlled switching logic uses a single A0 input to select between NO and NC paths per channel.

No enable pin is present in the MAX4780EUE variant-unlike the MAX4784EUE, which includes EN-making it a fixed-function, always-active quad multiplexer. All channels operate simultaneously under A0 control, with guaranteed break-before-make timing of ≤1ns to prevent signal shorting during transitions.

Key Specifications

Pinout & Package

MAX4780EUE is housed in a 16-pin TSSOP (Thin Shrink Small Outline Package) with 0.65mm pitch, JEDEC MO-153 compliant, and exposed pad not present (unlike QFN variants). Pin 1 is A0; pins 2–14 are analog terminals (NC/NO/COM per channel); pin 15 is GND; pin 16 is V+.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog multiplexer applications.

Compared with MAX4784EUE, MAX4780EUE eliminates enable complexity for simpler control but forfeits system-level shutdown capability; versus TMUX1574PWR, it offers NC/NO duality and proven TSSOP-16 footprint at slightly higher RON, making it preferable for cost-sensitive, space-constrained portable designs with established layout.

Availability

MAX4780EUE is available at Aetrix Electronics and suitable for battery-powered systems, audio/video signal routing, and low-voltage data-acquisition systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MAX4780EUE 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and consumer applications.

The MAX4780EUE belongs to Maxim's low-voltage analog switch product line, designed specifically for portable electronics requiring rail-to-rail signal integrity, ultra-low power, and miniature packaging in battery-constrained environments.

FAQ

What is the maximum analog signal voltage range supported by the MAX4780EUE?

The MAX4780EUE supports rail-to-rail analog signals from GND to V+, meaning its full analog input/output range spans 0V to the applied positive supply voltage - up to +4.2V. This allows seamless interfacing with 1.8V, 2.7V, 3.3V, and 3.6V systems without external level-shifting circuitry, preserving signal fidelity across the entire supply range.

Does the MAX4780EUE have an enable (EN) pin like the MAX4784EUE?

No, the MAX4780EUE does not include an enable (EN) pin. Unlike the MAX4784EUE, which features an EN input to globally disable all switches, the MAX4780EUE relies solely on the A0 address input to control channel selection. This makes the MAX4780EUE a simpler, fixed-function device optimized for applications where continuous operation is required without system-level shutdown capability.

What is the typical on-resistance flatness of the MAX4780EUE and why does it matter?

The MAX4780EUE exhibits 0.1Ω on-resistance flatness at +2.7V supply, defined as the difference between maximum and minimum RON over the full 0V to V+ analog signal range. This tight flatness ensures highly linear gain response and minimal harmonic distortion - critical for high-fidelity audio routing, precision sensor multiplexing, and DC-coupled measurement systems where signal integrity must be preserved across the entire voltage swing.

Can the MAX4780EUE be used with a +1.8V supply, and what performance trade-offs apply?

Yes, the MAX4780EUE operates down to +1.6V and is fully specified at +1.8V. At this supply, typical on-resistance increases to 2Ω (vs. 0.7Ω at +2.7V), and switching times rise to tON = 25ns / tOFF = 10ns. However, logic inputs remain +1.0V VIH compatible, and leakage stays below ±5nA - making it viable for ultra-low-power wearable devices where supply headroom is limited but moderate RON is acceptable.

How does the MAX4780EUE handle crosstalk and off-isolation in multi-channel operation?

The MAX4780EUE delivers -95dB crosstalk and -67dB off-isolation at 1MHz, measured between active and inactive channels. These values reflect its robust internal layout and CMOS switch design, ensuring minimal signal coupling in dense analog routing applications - such as simultaneous audio and video switching in smartphones - where isolation prevents audible artifacts or image ghosting without requiring additional shielding or guard traces.