Analog unveils AFE chips for ECG applications

BANGALORE, INDIA: Analog Devices, Inc., a provider of high-performance semiconductors, today introduced the fully integrated AFE (analog front-end) chips that enable ECG systems to achieve monitor- and diagnostic-quality performance.

The device also incorporates pacemaker pulse detection and respiration measurement, which are critical, features of any high-performance ECG system, said a press release.

The ADAS1000 ECG AFE simplifies the design of a five-electrode ECG system by significantly reducing the signal chain bill of materials from up to 50 components down to the ADAS1000 single chip plus a few discrete components.

The device can be configured to optimize noise performance, power, or data rate—making it suitable for home, ambulatory, and clinical ECG systems.

“Improvements in ECG systems will help physicians more accurately diagnose a wide range of conditions affecting the human heart,” said Susie Inouye, research director, Databeans Inc., a leading semiconductor research firm.

He added that the AFEs that provide high component integration and low power consumption, such as the ADAS1000, will make it possible for medical equipment designers to develop next-generation ECGs that are increasingly smaller and more portable.

The ADAS1000 AFE provides seamless scalability for high-lead-count systems; requires a minimum number of additional external components; and offers several digital output interface options.

"The ADAS1000 AFE, which delivers a complete ECG system in a single package, offers important ECG features such as pace detection and respiration measurement as well as multi-lead core ECG measurements and support functions, including leads-off detection and right leg drive," said Patrick O'Doherty, vice president for the Healthcare Group, Analog Devices.

He added that the high level of integration of the ADAS1000 AFE enables designers to develop next-generation ECG systems that are more compact and easier to carry without compromising the high diagnostic accuracy needed to effectively analyze the condition of a patient's heart.