ADI promotes low-cost AFE for portable medical applications

The low cost of portable medical electronics is expected to shrink again. In order to meet the cost and power consumption requirements of portable medical electronics, ADI launched the AD8232, a low-cost, single-lead analog front end specifically designed for portable heart rate monitors.

Wang Sheng, marketing manager of the Asia-Pacific medical industry in Adano, said that the company provides complete components in the field of medical electronics, which can help related companies design efficient and low-cost products as a whole in a systematic manner. Left is Ye Suyi, senior application engineer

According to Wang Sheng, marketing manager of Adenau's Asia-Pacific medical industry, because the AD8232 does not have an analog-to-digital converter (ADC), it can be compared with the general high-integration analog front-end solution, saving about $ 1-2, plus the use of a single guide Process design, which is extremely cost-effective.

Wang Sheng further pointed out that most microcontrollers have built-in 12-bit or 16-bit ADCs. Therefore, AD8232 can use the high-precision ADC in the microcontroller to perform signal conversion to meet the functional requirements of portable medical equipment. This design architecture not only saves cost, but also does not increase the workload of the microcontroller. If the medical electronics designer requires higher signal accuracy, an additional ADC can be added, but the cost will increase.

In addition to reducing the cost of an ADC, the new single-lead analog front-end highly integrated design also allows the device to have better cost performance. Compared with other analog front-end products, the size of the AD8232 is reduced by 50% and power consumption is reduced by 20%, so it is quite in line with the design requirements of portable heart rate monitors.