Single SPST-NC analog switch in 8-SOIC
The MAX4515ESA+ from Maxim Integrated is a single-pole single-throw normally-closed (SPST-NC) analog switch in an 8-SOIC surface-mount package. It routes one analog or digital signal channel with a 1:1 multiplexer/demultiplexer configuration, breaking the connection when the control input is deasserted. Key specs include a maximum on-resistance of 20 Ohm, switching times of 150ns on and 100ns off, and a low charge injection of 2pC. The part operates from a single 2V to 12V supply and is rated over the -40°C to +85°C industrial temperature range. Typical applications include audio signal routing, data acquisition systems, and test equipment where a low-resistance, fast-switching normally-closed path is needed.
On-resistance and switching speed — what they mean for the signal path
The 20 Ohm max on-resistance is the dominant contributor to insertion loss in the signal path.
Active lifecycle — no obsolescence risk for production builds
The MAX4515ESA+ carries an Active lifecycle status with no NRND or EOL flags.
