RX23E-A Channel-to-Channel Isolated Analog Input Module Reference Design

This is a reference design of a system that incorporates four pieces of RX23E-A with channel-to-channel isolation and measures temperature and voltage synchronously. This is ideal for applications, such as an analog input module with multiple analog inputs, a temperature controller, a recorder, and data acquisition.

This is a reference design combining high precision analog front-end (AFE) mounted MCUs RX23E-A and RX72M. RX23E-A performs not only A/D conversion but also distributed processing, such as digital filter processing and conversion of physical quantities. This allows high-precision measurement, high-speed response, and 4-channel synchronous measurement, which have not been realized by the existing discrete ADC before. In addition, the processing load of the host MCU RX72M is reduced so that RX72M focuses on processing that can be performed only by the host.