11.14.23
ams OSRAM launches the AS7058, an analog front end (AFE) which enables manufacturers of smart watches, smart rings and other wearable devices to improve the accuracy and reliability of vital signs measurements derived from photoplethysmographic (PPG) or electrical signals while extending battery run-time.
The new AS7058 also provides a new means for differentiating wearable products, introducing the capability to perform body impedance measurement, for analysis of body composition.
The AS7058’s ultra-low noise characteristics produce a very high optical signal-to-noise ratio of 120dB. This enables substantial improvements, compared to competing products, in PPG measurement performance in the parameters of heart rate, respiration rate, blood oxygen saturation (SpO2), and blood pressure.
The signal-to-noise ratio of the AS7058 also enables wearable device manufacturers to reduce power consumption by driving the device’s LEDs at lower current while maintaining high signal integrity.
“If the health monitoring outputs of smart watches can change from an approximate indicator of lifestyle factors to medically actionable data, the value of the product to the consumer will be dramatically enhanced,” Florian Lex, product marketing manager of ams OSRAM, said. “This is what the AS7058 helps to enable, by lowering the optical noise floor of the PPG measurements on which smart watches, smart rings and other wearable devices depend for high-quality vital signs data.”
ams OSRAM products for vital signs monitoring include LEDs, photodiodes and temperature sensors as well as the AS705x series of AFEs. The hardware products are supported by algorithms for measurement functions such as heart rate, respiration rate and SpO2.
The new AS7058 also provides a new means for differentiating wearable products, introducing the capability to perform body impedance measurement, for analysis of body composition.
The AS7058’s ultra-low noise characteristics produce a very high optical signal-to-noise ratio of 120dB. This enables substantial improvements, compared to competing products, in PPG measurement performance in the parameters of heart rate, respiration rate, blood oxygen saturation (SpO2), and blood pressure.
The signal-to-noise ratio of the AS7058 also enables wearable device manufacturers to reduce power consumption by driving the device’s LEDs at lower current while maintaining high signal integrity.
“If the health monitoring outputs of smart watches can change from an approximate indicator of lifestyle factors to medically actionable data, the value of the product to the consumer will be dramatically enhanced,” Florian Lex, product marketing manager of ams OSRAM, said. “This is what the AS7058 helps to enable, by lowering the optical noise floor of the PPG measurements on which smart watches, smart rings and other wearable devices depend for high-quality vital signs data.”
ams OSRAM products for vital signs monitoring include LEDs, photodiodes and temperature sensors as well as the AS705x series of AFEs. The hardware products are supported by algorithms for measurement functions such as heart rate, respiration rate and SpO2.