MAX389EWG+T

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX389EWG+T is a dual-channel CMOS analog switch manufactured by Analog Devices Inc. under the Maxim Integrated brand. It features an SP4T (Single Pole, Four Throw) configuration for each channel, providing two independent multiplexer circuits within a single package. The device operates on dual power supplies ranging from ±4.5 V to ±18 V. Key electrical parameters include a maximum on-resistance of 3 kΩ and a channel-to-channel matching of 300 Ω. Switching times are specified with a maximum turn-on time of 1.5 µs and turn-off time of 1 µs. The component supports surface-mount installation in a 24-pin SOIC package and functions within a temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Dual independent SP4T analog switching channels integrated into a single compact package
• CMOS technology enabling operation across wide dual-supply voltage ranges
• Low charge injection characteristics suitable for precision signal routing applications

Analog Switches, Multiplexers, Demultiplexers Applications

• Video signal routing and crosspoint switching systems
• Data acquisition systems requiring multi-channel signal selection
• Test and measurement equipment needing precise analog signal path control

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing this part number. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor certificates. Ensure the supplier provides traceability data consistent with Analog Devices quality standards. Cross-reference the full part number against current lifecycle notices to confirm active production status.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when dual independent 4:1 multiplexing is required in a space-constrained design. The 3 kΩ on-resistance may limit suitability for high-current applications compared to lower-resistance alternatives. Verify that the ±4.5 V to ±18 V supply range aligns with system power constraints. Consider the 24-SOIC footprint dimensions during PCB layout planning.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the MAX388/MAX389 family of CMOS analog switches. The MAX389 specifically distinguishes itself by offering two independent SP4T channels, whereas the MAX388 provides a single 8:1 multiplexer. Both share similar electrical characteristics and pinout compatibility, facilitating design flexibility within the same product line.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX388EWG+ serves as a functional alternative if only a single 8:1 multiplexer channel is sufficient for the application. Verify pin compatibility and electrical specifications before substitution. Other members of the MAX38x series may offer different channel counts or resistance values.