CEM102

The CEM102 from On Semiconductor is a specialized analog front end (AFE) tailored for applications requiring the sensing of very low currents, such as continuous glucose monitoring (CGM) and other amperometric measurement systems. Its design prioritizes low power consumption and a small form factor, enabling further miniaturization and extended battery life in end products.

This AFE is engineered to work seamlessly with the onsemi RSL15 Bluetooth 5.2 wireless MCU, optimizing system power consumption and supply voltage. It supports a broad operating voltage range of 1.3 V to 3.6 V, making it suitable for battery-powered devices like single 1.5 V silver oxide batteries or 3 V coin cells. The CEM102 features a 2-channel solution for electrochemical measurements, high-resolution ADC, and multiple DACs for bias setting. It also includes detection for abnormal sensor conditions and host processor wake-up capabilities.

The CEM102 is available in a WLCSP package, designed for surface mounting. It operates within a temperature range of -10°C to 70°C. The device supports 1, 2, 3, or 4 electrodes, offering flexibility for various sensor configurations. An evaluation board is also available, which includes the CEM102 and RSL15 with sample code to facilitate system and firmware development, allowing for a quick start in setting up and performing measurements.