EVAL-AD7134-FMCZ

24-Bit, 4-Channel Simultaneous Sampling 1.5 MSPS Precision Alias Free ADC

https://media.githubusercontent.com/media/analogdevicesinc/documentation/main/docs/solutions/reference-designs/eval-ad7134-fmcz/images/ad7134_chip.png

Overview

The AD7134 is a 24-bit, 4-channel simultaneous sampling 1.5MSPS, precision, alias free ADC. It contains a continuous time Σ-Δ modulation technology that does not use sample-and-hold circuitry to alleviate the side effects introduced by it, like charge kickback and signal aliasing. This inherent alias rejection is up to 100dB.

The device has an asynchronous sample rate converter used to synchronize two or more devices using only a signal line. To do this one of the devices will generate the synchronization signal while the others will receive it. This also allows for freely programmable data rates from 10SPS up to 1.496MSPS.

It has excellent AC and DC performance with 107dB dynamic for the FIR filter at 374kSPS and 138dB dynamic range for the sinc3 filter at 10SPS. The offset drift is 1.5uV/°C, gain drift of 2ppm/°C and INL of ±2.5ppm.

It can be powered from a 4.5V to 5.5V power supply and a 1.65V to 1.95V digital power supply for 1.8V I/O level. It can have external voltage reference of 2.5V, 4.096V and 5V and a crystal or CMOS external clock of 48MHz. The device can be configured and controlled by GPIOs or SPI. It has temperature operating range between 0°C and 85°C.

Features:

  • 24-bit, 4-channel simultaneous sampling ADC

  • Throughput of up to 1.496 MSPS

  • Alias-free continuous time Σ-Δ modulation (up to 100dB rejection)

  • Freely programmable data rates from 10SPS to 1.496MSPS

  • Asynchronous sample rate converter for multi-device synchronization

  • SPI or GPIO configuration and control

Applications:

  • Electrical test and measurement

  • Audio test

  • 3-phase power quality analysis

  • Control and hardware in loop verification

  • Sonar

  • Condition and monitoring for predictive maintenance

  • Acoustic and material science research and development

    https://media.githubusercontent.com/media/analogdevicesinc/documentation/main/docs/solutions/reference-designs/eval-ad7134-fmcz/images/ad7134_eval.png

    Figure 1 EVAL-AD7134FMCZ evaluation board

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 AD7134, we recommend to use the EVAL-AD7134FMCZ evaluation board.

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/ Zynq-7000 SoC

    3. Configure an SD Card with Kuiper

    4. Linux Applications

      1. IIO Oscilloscope

    5. AD7134 IIO Application (no-OS / MBED / STM32)

  2. Design with the AD7134

    1. HDL reference design

      1. AD7134-FMC HDL project which you must use in your FPGA.

    2. More information

      1. SPI Engine

  3. Help and Support

Functional Block Diagram

https://media.githubusercontent.com/media/analogdevicesinc/documentation/main/docs/solutions/reference-designs/eval-ad7134-fmcz/images/ad7134_block_diagram.png

Figure 2 AD7134 functional block diagram

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.