If you want to use Delta Lake as a source or target, perform the following steps to download the Databricks JDBC driver to enable the connection between the domain and the Delta Lake resource.

In a browser, go to the Databricks JDBC/ODBC driver page at online Databricks documentation. Fill out the form and submit it.
After you submit the form, you receive an email message that includes multiple download options.
Save the JDBC driver.jar file to the following directory on each machine that hosts the Data Integration Service, and then restart the Informatica domain:
<Informatica home>/externaljdbcjars
Save the JDBC driver .jar file to the following location on each machine that hosts the Developer tool client, and then restart the Developer tool:
<Developer tool home>/clients/externaljdbcjars