MAX3967AETG+

Updated: 2026-08-28

Overview

The MAX3967AETG+ is a quad-channel high-speed multiplexer IC designed for precision signal routing in demanding applications. Manufactured by Maxim Integrated, this component is widely used in industrial automation, telecommunications, and data acquisition systems where fast switching and low signal distortion are critical. Its compact TQFN package and robust performance make it suitable for space-constrained designs requiring reliable signal integrity. The device operates across a broad voltage range, accommodating various system requirements while maintaining low power consumption.

Structure and Working Principle

The MAX3967AETG+ integrates four independent analog switches controlled by digital inputs. Each channel consists of MOSFET-based switches with exceptionally low on-resistance (typically 4Ω), ensuring minimal signal attenuation. The internal architecture minimizes charge injection and crosstalk between channels. When a control pin receives a logic-high signal, the corresponding channel connects its input to the common output pin. The device features break-before-make switching to prevent signal shorting during transitions, with transition times under 20ns for high-speed applications.

Key Features

This multiplexer stands out for its ±15V analog signal handling capability while operating from a single +5V supply, offering exceptional flexibility. The -3dB bandwidth exceeds 200MHz, supporting high-frequency signals without significant degradation. Additional features include rail-to-rail signal handling, low quiescent current (typically 1μA), and ESD protection on all pins. The device maintains consistent performance across the industrial temperature range (-40°C to +85°C), ensuring reliability in harsh environments.

Application Areas

Primary applications include automated test equipment where multiple signals must be routed to measurement instruments. Telecom systems use it for signal path switching in base stations and network analyzers. In industrial settings, the MAX3967AETG+ appears in data acquisition systems for process monitoring and control. Medical imaging equipment also utilizes its fast switching capabilities for sensor signal multiplexing. The component's low distortion makes it valuable in professional audio routing systems.

Maintenance and Precautions

As an ESD-sensitive device, proper handling with grounded wrist straps and anti-static packaging is mandatory. Avoid exceeding absolute maximum ratings, especially the 20V supply voltage limit, to prevent permanent damage. For optimal performance, ensure clean power supply decoupling with 0.1μF capacitors placed close to the supply pins. Long-term storage should be in moisture-resistant packaging with desiccant, following JEDEC standards for moisture sensitivity level 1 devices.

B2B Procurement Guide

When sourcing the MAX3967AETG+, verify the manufacturer's part number suffix to ensure correct package type (ETG denotes 24-TQFN). Lead times typically range from 6-12 weeks for large orders, so plan inventory accordingly. Consider purchasing from authorized distributors to guarantee genuine components, as counterfeit versions may lack proper performance characteristics. For prototype quantities, sample kits containing evaluation boards are available directly from the manufacturer to facilitate testing.