Continuous Glucose Monitor (CGM)

A continuous glucose monitor (CGM) is a wearable medical device that provides near real-time glucose measurements to user interfaces, devices (such as smartphones), and/or insulin therapy devices, including insulin pumps. This capability helps individuals maintain optimal glucose levels and reduces the risk of health complications associated with glucose-related conditions such as diabetes.

Renesas' highly integrated CGM system is available in a variety of architectures:

• Cost-Optimized Disposable CGM: A highly integrated, cost-optimized architecture that uses a single Bluetooth^® Low Energy (LE) processor for signal acquisition, processing, wireless communication, and local program and data storage. This Bluetooth LE SoC interfaces with precision analog sensing circuitry and operates at ultra-low power while enabling accurate glucose measurement and seamless wireless data transfer.
• Rechargeable, Modular CGM: A modular design featuring detachable sensor mechanics and electronics. Users only need to replace the sensor electrodes (mechanics) while retaining the electronics, rather than disposing of the entire assembly, improving longevity and reducing overall cost. The system leverages a rechargeable battery and a fully sealed design to extend electronic life through NFC wireless charging (WLC).

System Benefits:

• Cost-optimized architecture reduces system BOM for disposable and wearable CGM platforms with Bluetooth LE 5.2 connectivity.
• Flexible memory architecture supports both standalone designs and future feature expansion.
• Ultra-low power architecture maximizes battery life.
• Closed-loop integration with an insulin pump enables scalable insulin therapy system designs.
• High measurement precision using Electrochemical Impedance Spectroscopy (EIS).
• Secure Bluetooth LE connectivity with NFC communication and push-button control.