32-bit MCU packs fast AFE sensor interface
With its precision analog front end, the Renesas RX23E-B 32-bit MCU is well-suited for high-end industrial sensor systems and measuring instruments. The part’s 24-bit delta-sigma ADC achieves a conversion speed of up to 125 ksamples/s, which is eight times faster than the company’s existing RX23E-A MCU. It performs accurate A/D conversion, while reducing RMS noise to one-third (0.18 µVRMS @ 1 ksamples/s) that of the RX23E-A.
The RX23E-B microcontroller enables accurate analog signal measurements of critical parameters like strain, temperature, pressure, flow rate, current, and voltage. It also offers sufficient measurement speed to drive force sensors used in industrial robots.
In addition to a 32-MHz RXv2-based CPU with DSP instructions and a floating point unit, the RX23E-B provides a 16-bit DAC to enable measurement adjustments, self-diagnosis, and analog signal output. The MCU’s ±10-V analog input enables ±10-V measurements with a 5-V power supply without requiring external components or an additional power supply.
The RX23E-B is available now, as is a Renesas Solution Starter Kit for the MCU.
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