The EVAL-ADUM141E1S supports the ADUM141E1S quad-channel digital isolator based on Analog Devices, Inc., iCoupler® technology. Combining high speed CMOS and monolithic air core transformer technology, the ADUM141E1S provideds outstanding performance characteristics superior to alternatives such as optocoupler devices and other integrated couplers. The ADUM141E1S offers low propagation delay and low pulse width distortion as well a tight channel matching. The ADUM141E1S features two different fail-safe options by which the outputs transition to a pre-determined state when the input power supply is not applied or the inputs are disabled.
Complete specifications for the ADUM141E1S are provided in the ADUM141E1S data sheet available from Analog Devices, Inc., and should be consulted in conjunction with this Wiki user guide when using the evaluation board.
The EVAL-ADUM141E1S board, shown in Figure 1, can be used to evaluate the performance and data sheet specifications of the ADUM141E1S. Figure 2 shows the schematic of the EVAL-ADUM141E1S circuit which can be used to test the accuracy of the ADUM141E1S and perform other tests. The EVAL-ADUM141E1S is a 4-layer PC board, complete with ground and power layers as shown in the Evaluation Board Schematics and Artwork section.
The evaluation board layout, BOM, and schematic files for the EVAL-ADUM141E1S board can be downloaded from the links below.
DISCLAIMER: The footprint used for layout on the evaluation board is provided for general reference only. The exact footprint required for mounting this device onto a printed circuit board will depend on the device lead forming and may differ from what is provided herein. It is recommended to generate specific footprint information from the users lead forming specifications when placing this device on the application printed circuit board.
Figure 1. ADUM141E1S Evaluation board—EVAL-ADUM141E1S
Figure 2. ADUM141E1S Evaluation Board Schematic—EVAL-ADUM141E1S
Figure 2 shows the ADUM141E1S schematic of the EVAL-ADUM141E1S evaluation board. U1 is the ADUM141E1S in the center of the board and Pin 1 is the top-left pad with respect to the notch in the silkscreen’s package outline.
Each side of the ADUM141E1S requires an off-board power source. The power source must be independent if common-mode voltages are applied across the isolation barrier or damage may occure to the power supply.
Figure 2. ADUM141E1S Example Test Configuration—EVAL-ADUM141E1S
Figure 3. ADUM141E1S Example Output Waveforem—EVAL-ADUM141E1S
Table 2. ADUM141E1S Evaluation Board Connection Table—EVAL-ADUM141E1S