ADS4125EVM

EVAL MODULE FOR ADS4125

1 Overview 

This evaluation module (EVM) user's guides give an overview of the EVM and provides a general description of the features and functions to be considered while using this module. This EVM user's guide applies to multiple EVMs:

• ADS41xx family:– ADS4126, ADS4146, ADS4128, ADS4129, ADS4149, ADS41B29, ADS41B49, ADS58B18

1.1 Purpose

The ADS41xx/58B18 EVM provides a platform for evaluating the analog-to-digital converter (ADC) under various signal, clock, reference, and power supply conditions. Use this document in combination with the EVM schematic diagram supplied.

1.2 EVM Quick-Start Procedure

The ADS41xx/58B18EVM provides numerous options for providing clock, input frequency, and power to the ADC under evaluation. The quick-start procedure describes how to quickly get initial results using the default configuration of the EVM as it was shipped. The EVM can be put back to default configuration by setting all jumpers with the default values as described in Table 1-1. The default configuration of the EVM is for single-ended signals into the analog input and clock input. These signals are converted from single-ended to differential on-board with the use of transformers. The default configuration for the power supply is to provide a single 3.3-V supply to the red banana jack J16, PWR_IN. The default configuration for the EVM is to control the modes of operation by jumper settings for parallel input control pins rather than serial SPI control of the register space. The other modes of operation of the EVM are described in the latter sections of this document.