SLLU091A January   2006  – September 2022 ISO721 , ISO721M

 

  1. 1Introduction
  2. 2Overview
  3. 3Functional Configuration of the ISO721 and ISO721M
  4. 4EVM Signal Paths of the ISO721 and ISO721M Isolators
  5. 5The EVM Configuration
  6. 6EVM Setup and Operation
    1. 6.1 Overview
  7. 7Revision History

Overview

The basic setup in Figure 6-1 has the two power supplies required to evaluate isolator performance with 3.3-V on one side and 5-V on the other. If both sides are to be evaluated at the same supply voltage, only one power supply is required and can be used to power both sides of the EVM.

CAUTION:

Note that this EVM is for operating parameter performance evaluation only and not designed for isolation voltage testing. Any voltage applied above the 5.5-V maximum recommended operating voltage of the ISO721 will damage the EVM.

GUID-10747281-0945-4B01-A202-F9F7D293B27E-low.gifFigure 6-1 Basic EVM Operation

The input to the EVM is a 20-MHz pulse displayed on channel 1 in Figure 6-2. The output of the EVM is channel 2.

GUID-A8C084DB-BC0C-48D2-ABA7-8FC26BBCECFA-low.gifFigure 6-2 Typical Input and Output Waveforms