AD485X-FMCZ

Buffered, 8-Channel Simultaneous Sampling, 20-Bit 1 MSPS DAS

Overview

The EVAL-AD4858 board contains the AD4858 chip, which is a 20-bit, low noise 8-channel simultaneous sampling successive approximation register (SAR) ADC, with buffered differential, wide common range picoamp inputs.

More about simultaneous sampling A/D converters here.

The EVAL-AD4858 supports pin-selectable SPI CMOS and LVDS serial interfaces. In CMOS mode, applications may employ between 1-8 lanes of serial output data, allowing the user to optimize bus width and data throughput. In LVDS mode, pins SDO+/-, SCKI+/- and SCKO+/- function as differential serial data input, clock output and clock input pins respectively (from the FPGA’s point of view).

Features:

• Full featured evaluation board for the AD4858

• Eight input channels available through SMA connectors

• On-board reference circuit and power supplies

• Standalone capability through FMC connector and/or test points

• PC software for control and data analysis of the time and frequency domain

• ZedBoard-compatible

• Compatible with other FMC controller boards

Applications:

• Automatic test equipment

• Avionics and aerospace

• Instrumentation and control systems

• Semiconductor manufacturing

• Test and measurement

Figure 1 Angle view

Figure 2 Top view

Figure 3 Bottom view

Recommendations

People who follow the flow that is outlined, have a much better experience with things. However, like many things, documentation is never as complete as it should be. If you have any questions, feel free to ask.

Table of Contents

1. Using the evaluation board/full stack reference design that we offer:

   1. Prerequisites - what you need to get started

   2. Quick start guides:

      1. Using the ZedBoard (FPGA)

   3. Use the board to better understand the EVAL-AD4858

      1. Configure a SD Card

      2. Package Management

   4. Linux Applications

      1. IIO Oscilloscope

      2. Scopy

   5. FRU EEPROM Utility

2. Design with the EVAL-AD485X-FMCZ

   1. Functional Block Diagram

      1. AD4858 Product page

      2. EVAL-AD485X-FMCZ User Guide

   2. Design a custom EVAL-AD485X-FMCZ-based platform

      1. HDL software

         1. AD485x-FMC HDL Reference Design

      2. Linux software

         1. AD485x Linux driver source code

         2. EVAL-AD4858FMCZ Linux device tree

      3. More information

         1. GNU Radio

         2. AXI ADC HDL Linux Driver

3. Help and Support

Pre-requisites and quickstart

The prerequisites and quickstart guides are provided at:

• Prerequisites
• Quick start guide

Functional Block Diagram

More Information and Useful Links

• AD4858 Product Page

• EVAL-AD485X-FMCZ User Guide

Software Projects and Platforms

• EVAL-AD4858 + ZedBoard

• AD485x-FMC HDL project

• AD485x No-OS project

Warning

All the products described on this page include ESD (electrostatic discharge) sensitive devices. Electrostatic charges as high as 4000V readily accumulate on the human body or test equipment and can discharge without detection. Although the boards feature ESD protection circuitry, permanent damage may occur on devices subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. This includes removing static charge on external equipment, cables, or antennas before connecting to the device.

Help and Support

Please go to Help and Support page.