AD7403

16-Bit, Isolated Sigma-Delta Modulator
Manufactured by:

Product Details

The AD7403 is a high performance, second-order, Σ-Δ modulator that converts an analog input signal into a high speed, single-bit data stream, with on-chip digital isolation based on Analog Devices, Inc., iCoupler® technology. The AD7403 operates from a 5 V (VDD1) power supply and accepts a differential input signal of ±250 mV (±320 mV full-scale). The differential input is ideally suited to shunt voltage monitoring in high voltage applications where galvanic isolation is required.

The analog input is continuously sampled by a high performance analog modulator, and converted to a ones density digital output stream with a data rate of up to 20 MHz. The original information can be reconstructed with an appropriate digital filter to achieve 88 dB signal to noise ratio (SNR) at  78.1 kSPS. The serial input/output can use a 5 V or a 3 V supply (VDD2).

The serial interface is digitally isolated. High speed complementary metal oxide semiconductor (CMOS) technology, combined with monolithic transformer technology, means the on-chip isolation provides outstanding performance characteristics, superior to alternatives such as optocoupler devices. The AD7403 device is offered in a 16-lead, wide-body SOIC package and has an oper-ating temperature range of −40°C to +125°C. The AD7403-8 device is offered in an 8-lead, wide-body SOIC package and has an operating temperature range of −40°C to +105°C.

Applications

  • Shunt current monitoring
  • AC motor controls
  • Power and solar inverters
  • Wind turbine inverters
  • Data acquisition systems
  • Analog-to-digital and opto-isolator replacements

Product Lifecycle

checked Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits

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Product Details

The EVAL-AD7403FMCZ/EVAL-AD7403-8FMCZ are full featured evaluation boards designed to allow the user to easily evaluate all features of the AD7403/AD7403-8 isolated analog-to-digital converters (ADC). The evaluation board can be controlled by the EVAL-SDP-CH1Z via FMCZ connector (J9). The SDP-H1 board (EVAL-SDP-CH1Z) allows the evaluation board to be controlled through a USB port of a PC using the evaluation board software available for download from the product page or from the included installer CD.


On-board components include the following:

ADuM6000: isolated iCoupler® 5kV, DC / DC converter

ADP2441: 36 V, 1A, synchronous, step down DC-DC regulator

ADP7104ARDZ-5.0: 5 V low noise LDO


Features

  • Full featured evaluation board for the AD7403/AD7403-8
  • On-board power supplies
  • Standalone capability
  • System demonstration platform (SDP-H1) compatible (EVAL-SDP-CH1Z)
  • PC software for control and data analysis (CD with software included in evaluation kit)

Evaluation Kit Contents
  • Evaluation board
  • CD containing evaluation board software installation

Additional Equipment Required
  • EVAL-SDP-CH1Z (must be ordered separately) includes a USB cable and 12v wall wart
  • Signal source
  • PC running Windows XP SP3, Windows Vista, or Windows 7 with USB 2.0 port

FMCMOTCON2 Circuit Diagram

Product Details

The AD-FMCMOTCON2-EBZ is a complete high performance servo system on an FPGA Mezzanine Card (FMC) board, the purpose of which is to provide a complete motor drive system demonstrating efficient and high dynamic control of three phase PMSM and induction motors up to 48V and 20A.

Two motors can be driven at the same time, each motor having its separate power supply. The system incorporates high quality power sources; reliable power, control, and feedback signals isolation; accurate measurement of motor current & voltage signals; high speed interfaces for control signals to allow fast controller response; industrial Ethernet high speed interfaces; single ended Hall, differential Hall, encoder and resolver interfaces; digital position sensors interface; flexible control with a FPGA/SoC interface.

The kit consists of two boards: a controller board and a drive board. An optional AD-DYNO2-EBZ dynamometer can also be purchased through Avnet and is intended to be an extension of the drive system.

Controller Board

  • Digital board for interfacing with the low and high voltage drive boards
  • Compatible with all Xilinx FPGA platforms with FMC LPC or HPC connectors
  • FMC signals voltage adaptation interface for seamless operation on all FMC voltage levels
  • Fully isolated digital control and feedback signals
  • Isolated Xilinx XADC interface
  • 2 x Gbit Ethernet PHYs for high speed industrial communication, with 3rd party EtherCAT support
  • Single ended Hall, Differential Hall, Encoder, Resolver interfaces
  • Digital sensors interfaces
    • EnDat
    • BISS Interface

Drive Board

  • Drives motors up to 48V @ 20A
  • Drives 2 motors simultaneously
  • High frequency drive stage implemented with ADI isolated gate drivers
  • Supported motor types
    BLDC
    PMSM
    Brushed DC
    Stepper (bipolar / unipolar)
  • Integrated over current protection
  • Reverse voltage protection
  • Current and Voltage measurement using isolated ADCs
  • BEMF zero cross detection for sensorless control of PMSM or BLDC motors
  • Separate voltage supplies for the 2 motors so that the motors don't influence each other

Dynamometer System with Embedded Control

  • Two BLDC motors connected by a rigid couple in a dyno setup, which can be used to test real-time motor control performance.
  • One BLDC motor acts as an electronically adjustable load and is driven by the embedded control system. This motor can be directly connected to the FMC motor drive to get complex / active loads. The load can be driven also by the AD-FMCMOTCON2-EBZ to implement dynamic load profiles.
  • The other BLDC motor is driven by the FMC motor drive.
  • Measurement and display of load motor current
  • Measurement and display of load motor speed
  • External control using Analog Discovery and MathWorks Instrumentation Control Toolbox

Software:

Example reference designs showing how to use the platform with Xilinx® FPGAs or SoCs and high performance control algorithms from Mathworks® are provided together with the hardware. Information on the FMC board, and how to use it, the design package that surrounds it, and the software which can make it work, can be found by clicking the software link.

FLEXMC MOTOR CONTROL LOW VOLTAGE KIT Circuit Diagram

Product Details

The FlexMC Motor Control Development PlatformTM is a rapid development system for any motor control solution. The FlexMC KitTM enables you to accelerate time-to-market and increase performance with powerful model-based design tools. This solution combines hardware and software with out-of-the-box functionality for a permanent magnet synchronous motor (PMSM) with hall sensor, encoder, or sensorless feedback.


Solution Overview
The FlexMC Kit has the hardware and software required to spin the kit’s motor under open or closed loop speed control in conjunction with an ADSP-CM408 EZ Kit. The software is provided as an executable file which can be flashed to the ADSP-CM408 processor using the ADI serial boot-loader utility. A .NET-based graphical user interface (GUI) is provided to enable motor start-stop, speed control, and data visualization. Sample C-code is also provided for open loop Volts/Hertz control of a motor.


The FlexMC Kit hardware comes in two variants. The kit option includes a PMSM motor with encoder, a 24V motor drive board, and a power supply. The board-only option includes the motor drive board only. In this case users can connect their own motor and power source. In both cases, the power board connects directly to an Analog Devices ADSP-CM408 Mixed-Signal Control Processor EZ Kit (sold separately). Easy connection to motors and the CM408 EZ Kit make this system perfect for your prototyping needs.


Additional rapid prototyping MATLAB/Simulink tools and support can be obtained by purchasing this kit from Boston Engineering


Low Voltage Kit Contents
Hardware:
  • Low Voltage Motor Control Board, 12-36V, 10A
  • 24V, 3-phase PMSM (not included in board-only option)
  • Quadrature Incremental Encoder (not included in board-only option)
  • SOLD SEPERATELY: ADI ADSP-CM408 EZ Kit

Software:
  • Executable Demo Application
  • Sample application C code

Note: To get started, download software and to get technical support on the FlexMC kit go to EngineerZone:
Sample C Code for EV-MCS-LVDRV-Z platform
Getting started with the EV-MCS-LVDRV-Z motor control platform


FLEXMC MOTOR CONTROL UNIVERSAL AC KIT Circuit Diagram

Product Details

The FlexMC Motor Control Development PlatformTM is a rapid development system for any motor control solution. The FlexMC KitTM enables you to accelerate time-to-market and increase performance with powerful model-based design tools. The ADI/Boston Engineering solution combines hardware and software with out-of-the-box functionality for permanent magnet synchronous motor (PMSM) with hall sensor, encoder, or sensorless feedback.

 

Solution Overview
The FlexMC Kit has the hardware and software required to spin the motor under open or closed loop speed control. With the FlexMC Kit, you model your system in MATLAB and Simulink, generate the C code, and then deploy. Utilizing system modeling and design concepts, the FlexMC Kit also contains libraries in MATLAB and Simulink for additional access to proven methodologies. The FlexMC Kit hardware includes a PMSM motor with encoder and a Boston Engineering universal AC input drive board that connects directly to an Analog Devices ADSP-CM408 Mixed-Signal Control Processor EZ Kit. Users can prototype with PC power using MATLAB and Simulink, then deploy with the FlexMC Kit. Easy connection to motors and the ADSP-CM408 EZ Kit make this system perfect for your prototyping needs.


Universal AC Kit Contents
Hardware:
  • Universal AC Voltage Motor Control Board, 95-250VAC, 400W
  • 3-phase Brushless  PMSM
  • Quadrature Incremental Encoder'
  • SOLD SEPERATELY: ADSP-CM408 EZ-KIT

Software:
  • Simulink Libraries
  • C Libraries
  • Demo Application

Note: The FlexMC  Motor Control Universal AC Kit is manufactured, distributed and supported by Boston Engineering (BE) exclusively. BE assumes all responsibility for the proper installation and operation of the kit.

ISOLATED INVERTER PLATFORM Circuit Diagram

ISOLATED INVERTER PLATFORM Photo

Product Details

The Isolated Inverter Platform is a rapid development system for hardware and/or software development in three-phase inverter applications, with a particular focus on motor control. Flexible evaluation of ADI isolation technology in a highly configurable system-oriented platform is enabled with multiple test-points, and connectivity options. An easy-plug connector allows controller connection to an ADSP-CM408 processor evaluation board, while additional 0.1” headers enable alternative connectivity to other processor or FPGA platforms. The benefits of ADI isolated sigma-delta converters for voltage and current measurement, isolated gate drivers, and power controllers can be explored in a full system application at dc bus levels up to 800V.

Solution Overview
The isolated inverter platform is a power board that runs from a dc input and provides a three-phase variable frequency, variable voltage, and variable dead-time PWM output to a three-phase motor or load. The inverter is provided as an open loop platform with no feedback loops – however these can be added by the application developer. Isolated current and voltage feedback are provided to the control side of the board via sigma-delta modulators, and these can be used for development of sensor-less control algorithms. The inverter is made up of a three-phase six-IGBT bridge, with the IGBTs rated at 1200V and driven by three dual isolated gate drivers. A DC – rather than AC- input is provided to allow flexibility on the dc bus voltage level (rather than it being limited to the ac line peak).

The board is optimized to work from a DC supply in the range 24Vdc-800Vdc. The power rating of the supply should be sufficient to match the load being driven. The power board is rated up to 2kVA without forced air cooling. Additional power throughput can be achieved with fan cooling added. A series connected diode implements a half-wave rectifier at the input, so if needed, the power board can be driven from an AC supply. However output power is limited in this case. If a full AC front-end is required, the inverter platform can be utilized in conjunction with the ADP1047 evaluation board up to 300W, or the ADP1048 evaluation board . An isolated I2C interface is provided on the inverter board so that the ADP104x evaluation board can be easily controlled by the same processor/FPGA interface. The inverter kit has the hardware and software required to spin a three-phase motor under open loop speed control in conjunction with an ADSP-CM408 EZ Kit. The demo software is provided as an executable file which can be flashed to the ADSP-CM408 processor using the ADI serial boot-loader utility. A .NET-based graphical user interface (GUI) is provided to enable motor start-stop, open loop Volts/Hertz speed control, and data visualization. 

Kit Contents

Hardware:
Software:
  • Executable Demo Application
  • .NET-based Graphical User Interface (GUI)

Note: To download software and to get technical support on the isolated inverter platform go to https://ez.analog.com/docs/DOC-12105

Tools & Simulations

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Design Tools

Product Recommendations

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AD7403 Companion parts

Recommended DC/DC Converters

  • For isolated Vdd1 (5V) , we recommend the ADUM6000 .
  • For non-isolated Vdd1 (5V) , we recommend the ADP2441 .

Recommended Processor for the AD7403

Design Resources

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

AD7403 Material Declaration
PCN-PDN Information Quality And Reliability Symbols and Footprints

Sample & Buy

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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.