CA-IS3721CHS

The CA‐IS372xC devices provide high electromagnetic immunity and low emissions at low power consumption, while isolating CMOS digital I/O. Each isolation channel has a logic input and output buffer separated by capacitive silicon dioxide (SiO2) insulation barrier, and each channel input integrates Schmitt trigger to provide excellent noise immunity.   The CA‐IS3720C features two channels transferring digital signals in one direction for applications such as isolated digital I/O. The CA‐IS3721C/CA‐IS3722C devices have 2 channels with 1 channel in each direction, making them ideal for isolating the TX and RX lines of a transceiver, such as RS‐485, CAN etc. communication. When the input is either not powered or open‐circuit, the default output is low for devices with suffix L and high for devices with suffix H. The CA‐IS372xC devices are specified over the –40°C to +125°C operating temperature range and are available in 8‐ pin narrow‐body SOIC package (3.75kVRMS, basic isolation), 8‐pin or 16‐pin wide‐body SOIC package (5kVRMS, reinforced isolation).