Multi-switch detection interface (MSDI) ICs

Optimize input-output monitoring and serialization in automotive and industrial systems

parametric-filterView all products
Monitor your multi-position analog and digital switches in automotive and industrial applications with our portfolio of integrated multi-switch detection interface (MSDI) devices. These products can include integrated wetting currents, reverse blocking and ESD protection to help enable smaller switch-contact monitoring solutions for applications such as body control modules.

Browse by category

Select by type

Multi-switch detection interface devices

Fully integrated low-power switch and sensor interface devices to monitor multi-position analog and digital switches in automotive and industrial applications

Industrial serializers

High-voltage serializers for industrial I/Os that support up to 8 inputs with a single device, or can be cascaded for additional inputs in PC, PLC and other industrial systems

Technical resources

Video series
Video series
Multi-switch Detection Interface (MSDI) for automotive and industrial applications
Watch on-demand multi-switch detection interface (MSDI) training that includes overviews and in-depth presentations.
Application note
Application note
Switch Detection in BCM: Integrated MSDI Solution vs. Semi Discrete Solution
Understand how to implement typical switch detection using an integrated MSDI solution, a semi-discrete method with a CMOS multiplexer, or a discrete solution with a number of passive components
document-pdfAcrobat PDF
Application note
Application note
Protecting 12-V MSDI Devices in a 24-V System
Learn how to enable operation in a 24-V system with our 24-input MSDI devices by implementing an input protection circuit.
document-pdfAcrobat PDF