SLLSEY7F June 2017 – April 2020 ISO1211 , ISO1212
PRODUCTION DATA.
Refer to the PDF data sheet for device specific package drawings
The ISO1212 device can be used to create a bidirectional input module that can sink and source current as shown in Figure 29. In this configuration, channel 1 is active if the COM terminal is connected to ground for sinking inputs, and channel 2 is active if the COM terminal is connected to 24 V for sourcing input. The digital input is considered high if either the OUT1 or OUT2 pin is high.
A bidirectional input module can also be built with the ISO121x devices using low-cost Schottky diodes as shown in Figure 30.