This user guide describes the operation and use of the ADS122S14 and ADS122C14 evaluation module.

Table 1-1 shows that the devices in the ADS122S14 ADC family have very similar characteristics other than the communication interface and ADC resolution. For simplicity, the rest of this document uses the ADS122S14EVM as an example of the behavior and operation of all devices. If applicable, each section describes any differences between the ADS122S14EVM and the other devices shown in Table 1-1.

The ADS122S14EVM is a fully assembled evaluation platform designed to highlight the ADS122S14 device performance and functionality of operation that make this device designed for measuring different type of analog sensors. The EVM sits on top of the PAMB controller card, which is used as a USB-to-PC GUI communication bridge. This board combination also serves as an example implementation of connecting a microcontroller (MCU) to communicate with the ADS122S14 device through an SPI. Figure 1-1 shows a functional block diagram of the system setup.

This EVM user guide describes the characteristics and operation of the ADS122S14EVM. The ADS122S14EVM eases the evaluation of the ADC with hardware, software, and computer connectivity through the universal serial bus (USB) interface. This EVM user guide includes complete circuit descriptions, schematic diagrams, and a bill of materials. Throughout this document, the abbreviation EVM and the term evaluation module are synonymous with the ADS122S14EVM

The PAMB receives commands from the ADS122S14EVM GUI and returns data to the GUI for display and analysis. If the PAMB is not used, the EVM plug-in module allows for an alternative external host to communicate with the ADS122S14 through headers J1 through J4. Refer to Section 2.3 for more information.