AD7656-1/AD7657-1/AD7658-1 EVALUATION TOOLS

Introduction

The AD7656-1/AD7657-1/AD7658-1 contain six 16-bit, fast, low power, successive approximation ADCs all in the one package. The AD7656-1/AD7657-1/AD7658-1 accept True bipolar analog input signals, ±10V and ±5V. The AD7656-1/AD7657-1/AD7658-1 have high speed parallel, serial and Daisy Chain Interface modes.

The EVAL-AD7656-1/AD7657-1/AD7658-1CB can be used to evaluate the AD7656-1, AD7657-1 and the AD7658-1. Accompanying the evaluation kit is the AD7656-1/AD7657-1/AD7658-1 evaluation board and a CD-ROM containing a Technical Note, the datasheet and a description for the Evaluation Board Controller. The Technical Note describes the evaluation board for the AD7656-1/AD7657-1/AD7658-1. Full details on the AD7656-1/AD7657-1/AD7658-1 are also available in the AD7656-1/AD7657-1/AD7658-1 datasheet (which can be downloaded from the AD7656-1/AD7657-1/AD7658-1 Product Page) and this should be consulted in conjunction with this Technical Note when using the Evaluation Board.

On-board components include an AD780, which is a pin programmable +2.5 V or +3 V ultra high precision bandgap reference, and six AD797 high precision op-amps.

Interfacing to this board is through a 96-Way connector. This 96-Way connector is compatible with the evaluation board controller (EVAL-CONTROL BRD2), which is also available from Analog Devices. External sockets are provided for a number of signals. The evaluation board controller is powered from a 12 V AC transformer. Suitable transformers are available from Analog Devices as an accessory under the following part numbers:

Documentation

Technical notes are available in Adobe Acrobat Portable Document Format (PDF). To download the Technical Note, select the link below: EVAL-AD7656-1/AD7657-1/AD7658-1 Technical Note (pdf, 806 KB)

Software

Included in the AD7656-1/AD7657-1/AD7658-1CB evaluation board package is software for controlling and evaluating the performance of the AD7656-1/AD7657-1/AD7658-1, when they are operated with the evaluation board controller. The EVAL-AD7656-1/AD7657-1/AD7658-1CB Demonstration/Evaluation Software runs under Windows 95, 98, 2000, XP and NT. The user interface on the PC is via a dedicated program written especially for the EVAL-AD7656-1/AD7657-1/AD7658-1CB.