Avago Technologies ACPL-7900-000E - Manual

ACPL-790B, ACPL-790A, ACPL-7900
Isolation Amplifi er Evaluation Board User Manual
User Guide
Quick-Start Guide
Once visual inspection is done to ensure that the Evaluation Board is received in good condition, the Evaluation Board
can be powered up in just 3 simple steps according to Figure 1 as shown:
1. Select either one of the provided sensing resistors (10mΩ or 15mΩ), or user’s own sensing resistor and mount it
(through soldering) on pads provided for R1 on the Evaluation Board;
2. Connect the necessary power supplies and current source as shown:
a. Connect 1st isolated 5V DC supply (DC Supply 1) to connector CON1 as shown;
b. Connect a 3.3V DC supply (DC Supply 2, can be non-isolated) to connector CON2 as shown;
c. Connect, through soldering, the required input current source (for sensing) cables as shown;
3. Supply the input current (subject to a maximum signal level of 250mVpp, or ±125mVdc across resistor R1) through
the cables (as shown in 2c) and monitor the output through an oscilloscope.
Figure 1. Default Test Setup of Evaluation Board
2c. Connect
current source
cables
2b. Connect
DC supply 2.
+3.3V Gnd1
3. Output to
oscilloscope
or MCU
2a. Connect
DC supply 1.
+5V Gnd1