MCU Has Advanced Analog Front-End for Demanding Industrial Sensor Systems
Renesas Electronics expanded its 32-bit microcontroller (MCU) offering with the RX23E-B, a device for high-end industrial sensor systems. A 32-bit device from the RX Family, it features a high-precision analog front end (AFE) designed for systems that demand fast and accurate analog signal measurements. The MCU integrates a 24-bit delta-sigma analog-to-digital converter for a conversion speed of up to 125,000 samples/second, 8X faster than legacy solutions.
The RX23E-B can process accurate analog-to-digital conversion while reducing RMS noise to 1/3 (0.18 µVrms @ 1 kSPS) when compared to the RX23E-A, enabling faster and more precise measurements of critical parameters such as strain, temperature, pressure, flow rate, current, and voltage. The RX23E-B can address demanding applications like force sensors in industrial robots, which often demand measurements as fast as 10 µs. The MCU also incorporates the AFE and the MCU on a single chip, reducing overall system size and component count.
In addition to the AFE, the RX23E-B incorporates a 32-MHz RXv2-based CPU with DSP instructions and a FPU, with peripheral functions including a 16-bit digital-to-analog converter, self-diagnosis, and an analog signal output. The device’s ±10-V analog input enables ±10-V measurement with a 5-V power supply without requiring external components or additional power supply. Also included are an LCD controller with a maximum of 40 SEG x 4 COM and a RTC function.
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Renesas Electronics
RX23E-B
