Analog Devices Inc./Maxim Integrated MAX4734EUB+

Overview

MAX4734EUB+ from Maxim Integrated is a low-voltage, 4-channel CMOS analog multiplexer with 0.8Ω (max) on-resistance at 3V supply, 25ns turn-on time, and rail-to-rail signal handling from GND to V+. It features break-before-make switching, 1.8V CMOS logic compatibility, and operates from a single 1.6V–3.6V supply-ideal for battery-powered audio routing and low-voltage data-acquisition systems.

For engineers reviewing the MAX4734EUB+ datasheet, MAX4734EUB+ pinout, MAX4734EUB+ application, or MAX4734EUB+ equivalent, this page delivers verified electrical parameters, μMAX package layout details, functional truth table mapping, and real-world selection guidance for high-speed, low-R_ON analog switching in space-constrained portable designs.

Technical Context

The MAX4734EUB+ implements a 2-bit address-decoded 4:1 analog multiplexer with enable control, using CMOS transmission-gate architecture to support bidirectional rail-to-rail analog signals. Its break-before-make timing (5ns typical) prevents momentary shorting between channels during switching.

Logic inputs (A0, A1, EN) tolerate up to 3.6V regardless of supply voltage, enabling mixed-voltage interfacing. The device maintains <0.2Ω R_ON matching and 0.1Ω R_ON flatness across its full analog range at 3V, ensuring minimal signal distortion in precision routing applications.

Key Specifications

Pinout & Package

The MAX4734EUB+ uses a 10-pin µMAX package (3mm × 3mm, 0.8mm height), RoHS-compliant with exposed pad connected to GND for thermal and noise performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TS5A4624DCKR and ADG704BRMZ, the MAX4734EUB+ uniquely balances sub-1Ω R_ON, 25ns speed, and guaranteed break-before-make-making it optimal for portable audio and high-fidelity sensor multiplexing where both low distortion and fast settling are critical.

Availability

MAX4734EUB+ 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 assurance, and RoHS-compliant packaging.

Supply support for MAX4734EUB+ 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 demanding industrial, communications, and consumer applications.

The MAX4734EUB+ belongs to Maxim's low-voltage analog switch family, engineered specifically for portable and battery-operated equipment where rail-to-rail signal integrity, ultra-low power, and miniature packaging are essential.

FAQ

What is the maximum continuous current rating for the MAX4734EUB+?

The MAX4734EUB+ supports 150mA continuous current through its COM and NOx terminals. This rating applies across the full operating temperature range (−40°C to +85°C) and is validated under DC conditions with proper PCB thermal relief. Exceeding this limit risks parametric shift or permanent damage due to junction heating.

Does the MAX4734EUB+ require external pull-up or pull-down resistors on its logic inputs?

No, the MAX4734EUB+ logic inputs (A0, A1, EN) have internal ESD protection diodes but no internal termination. External pull-up or pull-down resistors are required only if the driving source is open-drain or high-impedance during system reset. For standard CMOS drivers, direct connection suffices.

Can the MAX4734EUB+ operate with a 1.6V supply while maintaining guaranteed R_ON performance?

Yes-the MAX4734EUB+ is fully specified down to 1.6V. At 1.6V supply, R_ON rises to 3Ω (max), as confirmed in the Electrical Characteristics table. This value remains guaranteed across temperature and process variation, making it usable in ultra-low-power modes where speed and on-resistance trade-offs are acceptable.

Is the exposed pad on the MAX4734EUB+ µMAX package electrically connected?

Yes, the exposed pad on the MAX4734EUB+ is internally connected to GND and must be soldered to a PCB ground plane. This connection provides critical thermal dissipation (derating starts at +70°C) and reduces ground bounce during fast switching transitions. Leaving it unconnected degrades thermal performance and may cause instability.

How does break-before-make timing affect signal integrity in the MAX4734EUB+?

The MAX4734EUB+ guarantees 5ns typical break-before-make interval, preventing momentary short-circuits between selected and deselected channels. This eliminates transient crosstalk spikes and ensures clean channel transitions-critical in audio routing and multi-sensor acquisition where signal contamination must be avoided during switching.