This application report discusses the SPI interfacing implementation of a system featuring the following devices: TLV2541, TLC2551, TLC3541 and TLC4541. These ADCs offer a variety of options for users ranging from extremely low power and wide voltage supply range to fast conversion throughput. All devices share a very small (MSOP) footprint and are pin-for-pin compatible for easy upgradeability. In this application report SPI interface code examples from the MSP430F149 to each ADC are presented.