DC2677A

High Voltage, 18-Bit, 8-Channel Data Acquisition Reference Design.

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Overview

Demonstration circuit 2677A (DC2677A) is a reference design for robust industrial data acquisition applications for the LTC2358-18. The device supports high voltage measurements with a large input common range and incorporates input protection that allows up to 400V of continuous input protection.

The design features an ADA4522-2 dual zero-drift operational amplifier and LT6658 dual-output, high current reference for sensor excitation. The digital interface uses an HSMC (high-speed mezzanine connector), compatible with the Altera Cyclone V SoCkit and other Altera FPGA evaluation boards supporting 3.3V CMOS I/O.

Supported Devices

Supported Carriers

DC2677A

Cyclone V SoC Development Kit

LTC2358-18

Features:

  • 18-bit, 8-channel SAR ADC with SoftSpan programmable input ranges

  • Up to 400V continuous input overvoltage protection

  • Dual zero-drift amplifier (ADA4522-2) for low offset and low drift

  • Dual-output high current reference (LT6658) for sensor excitation

  • HSMC interface compatible with Altera Cyclone V SoCkit and other Altera FPGA boards supporting 3.3V CMOS I/O

Applications:

  • High voltage industrial data acquisition

  • Process control and monitoring

  • Sensor excitation and signal conditioning

  • High accuracy measurement systems

https://media.githubusercontent.com/media/analogdevicesinc/documentation/main/docs/solutions/reference-designs/dc2677a/images/dc2677a.png

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.

To better understand the LTC2358-18, we recommend using the DC2677A evaluation board.

Table of contents

  1. Using the DC2677A full stack reference design that we offer:

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

    2. Prerequisites - what you need to get started with the setup

    3. Quickstart:

      1. Using the Cyclone V SoCkit

  2. Use the board to better understand the DC2677A

    1. Configure a SD Card

    2. Update the SD Card

    3. Linux Applications

      1. Libiio

      2. FRU EEPROM Utility

  3. Design with the DC2677A

    1. Design a custom DC2677A based platform

      1. HDL software

        1. DC2677A HDL Reference Design

      2. Linux software

        1. DC2677A Linux driver source code

        2. DC2677A Linux device tree

      3. More information

        1. ADI HDL User Guide

        2. AXI_LTC235x

  4. Help and Support

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.