April 26, 2024 
Professional magazine and portal dedicated to electronics 
Renesas Electronics introduced the RX23E-A Group 32-bit RX microcontrollers (MCUs), combining high-precision analog front end (AFE) and an MCU on a single chip. Designed for manufacturing and test and measurement equipment applications that require high-precision measurements of analog signals for temperature, pressure, weight, and flow, the RX23E-A MCUs are the first Renesas solutions to enable such signals to be measured with better than 0.1% precision without calibration.
The new MCUs achieve AFE precision at the highest class in the industry (offset drift: 10 nV/°C, gain drift: 1 ppm/°C, and RMS noise: 30 nV rms), a level that could previously only be achieved by combining dedicated A/D converter circuits with high-precision operational amplifier ICs. By integrating this high-precision AFE IP (intellectual property) on a single chip using the same fabrication process technology, Renesas has made it possible to implement high-precision sensor measurement, computation, control, and communications on a single chip (more info).
