EVAL-AD738xFMCZ

Evaluating the AD738x Family of Simultaneous Sampling SAR ADCs.

Overview

The EVAL-AD738xFMCZ evaluation board enables quick and easy evaluation of the performance and features of the AD738x family of devices.

The AD7380 family are dual and quad 16-bit, 14-bit, and 12-bit pin-compatible, simultaneous sampling, high-speed, low-power, successive approximation analog-to-digital converters (ADCs) that operate from a 3.3 V power supply and feature throughput rates up to 4 MSPS. The analog input type is differential for the AD7380, AD7381, AD4680, AD4681, AD7380-4, AD7389-4, AD7381-4 — these can accept a wide common-mode input voltage and are sampled and converted on the falling edge of CS. The AD7383, AD7384, AD4682 and AD4683 have pseudo-differential inputs, while the AD7386, AD7387, AD7388, AD4684 and AD4685 have single-ended inputs. The AD7380 family has optional integrated on-chip oversampling blocks to improve dynamic range and reduce noise at lower bandwidths. An internal 2.5 V reference is included; alternatively, an external reference up to 3.3 V can be used.

The dual devices are available in a 16-lead 3 mm x 3 mm LFCSP package, while the quad devices are available in a 4 mm x 4 mm LFCSP package. Both operate over a specified temperature range of -40 C to +125 C.

Figure 1 EVAL-AD7380FMCZ

Figure 2 EVAL-AD7386-4FMCZ

Figure 3 EVAL-AD7381FMCZ

Features:

• Simultaneous sampling on all channels

• Throughput rates up to 4 MSPS

• 3.3 V single-supply operation

• Internal 2.5 V reference (external reference up to 3.3 V supported)

• On-chip oversampling and averaging blocks

• SPI-compatible serial interface

• Compatible with 1.8 V, 2.5 V, and 3.3 V logic interfaces

• FMC form factor for easy connection to FPGA carrier boards

Applications:

• Motor control position feedback and current sense

• Data acquisition systems

• EDFA applications

• I and Q demodulation

• SONAR

• Power quality monitoring

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 on our EngineerZone forums, but before that, please make sure you read our documentation thoroughly.

Table of Contents

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

   1. User Guide - what you need to know about the evaluation board

   2. AD738x IIO Dual Channel Serial ADC Linux Driver - Linux IIO driver, devicetree configuration and driver testing

   3. Prerequisites - what you need to get started

   4. Quick start guides:

      1. Using the ZedBoard (FPGA)

2. Use the board to better understand the EVAL-AD738xFMCZ

   1. Configure a SD Card

   2. Update the SD Card

   3. Linux Applications

      1. IIO Oscilloscope

      2. Scopy

3. Design with the EVAL-AD738xFMCZ

   1. Simplified functional block diagram

      1. AD7380 Product Page

      2. AD7381 Product Page

      3. AD7386 Product Page

   2. Design a custom EVAL-AD738xFMCZ-based platform

      1. HDL software

         1. AD738x-FMC HDL Reference Design which you must use in your FPGA.

      2. No-OS software

         1. AD738x No-OS Project

      3. Linux software

         1. AD738x Linux driver source code

         2. EVAL-AD7380FMCZ Linux device tree

      4. More information

         1. SPI Engine Framework

4. Help and Support

Simplified functional block diagram

Figure 48 AD7380/AD7381 Block Diagram

Figure 49 AD7380/AD7381 Block Diagram (Alternate)

Figure 50 AD7380-4 Block Diagram

More Information and Useful Links

• AD7380 Product Page

• AD7381 Product Page

• AD7383 Product Page

• AD7386 Product Page

• AD7380-4 Product Page

• ADAQ4380-4 Product Page

Software Projects and Platforms

• EVAL-AD738xFMCZ + ZedBoard

• AD738x-FMC HDL project

• AD738x 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.