STMicroelectronics’ "ST op amps" is a free Android application that helps you select the most appropriate operational amplifiers, comparators, high-speed amplifiers, and current sensing for your application using the product selector. This app provides a library of datasheets, including additional information about the most used schematics, compensation methods, or package mechanical dimensions.

One of the main features of the ST op amps application is its interactive schematics, which include the inverting configuration, non-inverting configuration, low pass filter, high pass filter, differential configuration, summing configuration, and comparator with hysteresis. These schematics allow you to visualize the circuit and simulate different configurations.

The app also offers an op-amp cross-reference tool, which helps you find the right amplifier for your application. In addition to this, it provides a schematics library, application notes, and 2D & 3D package mechanical drawings and data. Furthermore, the app includes links to ST's website for more information and support.

Overall, ST op amps is a comprehensive and easy-to-use app that helps you select the right amplifiers and comparators for your application.