Analog Devices Inc./Maxim Integrated MAX4734EUB+TG24

Overview

MAX4734EUB+TG24 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 capability. It operates from a single 1.6V–3.6V supply, consumes <4μW quiescent power, and features break-before-make switching for reliable signal routing in portable audio and battery-powered data acquisition systems.

For engineers reviewing the MAX4734EUB+TG24 datasheet, MAX4734EUB+TG24 pinout, MAX4734EUB+TG24 application, or MAX4734EUB+TG24 equivalent, key selection criteria include on-resistance flatness (0.1Ω max), 1.8V CMOS logic compatibility at 3V supply, ±150mA continuous current rating, and μMAX package thermal performance (444mW at +70°C).

Technical Context

The MAX4734EUB+TG24 implements a 2-bit address-decoded 4:1 analog multiplexer architecture with independent enable control. Its CMOS switch design supports bidirectional rail-to-rail analog signals (GND to V+) and guarantees break-before-make timing (5ns typ) to prevent channel shorting during state transitions.

All four normally-open (NO1–NO4) channels share a common analog terminal (COM), with digital control via A0/A1 address lines and EN enable input. Logic inputs tolerate up to 3.6V regardless of supply voltage, enabling mixed-voltage system interfacing without level shifters.

Key Specifications

Pinout & Package

The MAX4734EUB+TG24 is housed in a 10-pin μMAX package (3mm × 3mm, 0.8mm height) with exposed pad connected to GND for thermal enhancement.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4734EUB+TG24, MAX4733EUB+ saves one channel and cost but sacrifices flexibility, while TMUX1574RSVR trades guaranteed break-before-make and ultra-low power for marginally lower RON and higher speed-neither is pin-compatible, requiring PCB redesign.

Availability

MAX4734EUB+TG24 is available at Aetrix Electronics and suitable for portable audio signal routing, battery-powered data acquisition, and cellular phone power routing requiring stable component supply across industrial temperature range (-40°C to +85°C).

Supply support for MAX4734EUB+TG24 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 and mixed-signal ICs for power, sensing, and connectivity applications.

The MAX4734EUB+TG24 belongs to Maxim's low-voltage analog switch family, engineered specifically for space-constrained, battery-sensitive systems requiring rail-to-rail signal integrity and sub-microwatt operation.

FAQ

What is the maximum continuous current rating for each channel of the MAX4734EUB+TG24?

The MAX4734EUB+TG24 supports ±150mA continuous current per channel (COM and NOx terminals) at TA ≤ +70°C. This rating is validated under derated power dissipation (444mW at +70°C, decreasing by 5.6mW/°C above that temperature). Exceeding this current risks thermal shutdown or long-term reliability degradation, especially in the 10-pin μMAX package where heat dissipation is constrained.

Does the MAX4734EUB+TG24 support rail-to-rail analog signals, and what is the practical voltage range?

Yes, the MAX4734EUB+TG24 supports rail-to-rail analog signals from GND to V+, with verified operation across the full 0V to V+ range at supply voltages from 1.6V to 3.6V. At V+ = 3.0V, signals from 0V to 3.0V pass with <0.1Ω on-resistance variation (flatness), making it suitable for interfacing directly with 3.3V ADCs and DACs without level-shifting circuitry.

What logic voltage levels are compatible with the A0, A1, and EN inputs of the MAX4734EUB+TG24?

The A0, A1, and EN inputs of the MAX4734EUB+TG24 accept logic levels up to 3.6V regardless of V+ supply voltage. When V+ = 3.0V, VIH is guaranteed ≥1.4V and VIL ≤0.5V, making them fully compatible with 1.8V CMOS logic. This allows direct interfacing with low-voltage microcontrollers without level translators, reducing BOM count and board area.

How does the break-before-make feature function in the MAX4734EUB+TG24, and is it guaranteed?

The MAX4734EUB+TG24 implements hardware-enforced break-before-make switching with a guaranteed 5ns minimum interval (tBBM) between channel turn-off and turn-on during address changes. This prevents momentary shorting between NOx terminals and is critical in applications like audio routing where crosstalk or pop noise must be avoided. The specification is guaranteed by design per the datasheet (Note 8).

What is the on-resistance matching specification between channels of the MAX4734EUB+TG24, and why does it matter?

The MAX4734EUB+TG24 guarantees ΔRON ≤0.2Ω (max) between any two channels at V+ = 2.7V and TA = +25°C, defined as RON(MAX) − RON(MIN). Tight matching ensures uniform gain/attenuation across channels in multi-path signal conditioning circuits-critical in precision data acquisition where channel-to-channel error must stay below 0.1% of full-scale reading.