AFE provides low-current sensing for continuous glucose monitoring

Mouser now stocks the CEM102 AFE from onsemi. The sensor accurately measures very low currents for continuous glucose monitoring (CGM) and other sensitive tasks. The sensor is an analog front end developed for electrochemical sensor applications utilising amperometric measurements, including IoT sensor devices and wearables.

The AFE is designed for use with the onsemi RSL15 Bluetooth 5.2 wireless microcontroller. Its small form factor and low power consumption make it an excellent choice for compact devices requiring extended battery life. It features a high-resolution ADC, multiple DACs for bias setting, and a factory-trimmed system. The CEM102 and RSL15 MCU provide very low system power consumption and a supply voltage range of 1.3V to 3.6V; the system can be powered by a 1.5V silver oxide battery or a 3V coin cell.

The sensor supports one, two, three, or four electrodes and provides detection for abnormal sensor conditions with host processor wake-up.