The ADAS1000 fully integrated AFE enables 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. Features include a low noise performance of 10 µVp-p over 0.05 to 150 Hz; data frame rates of 2, 16, and 128 kHz; and a dc-coupled channel implementation.
The 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 part operates the five ECG electrode measurements from as little as 19 mW. Any unused channels or features can be conveniently disabled to further minimize power to as low as 11 mW for one lead.
The device provides seamless scalability for high-lead-count systems and offers several digital output interface options. It also support designs based on AAMI (Association for the Advancement of Medical Instrumentation) and IEC (International Electrotechnical Commission) specifications. ($28 ea/1,000 — samples available now.)
By Christina Nickolas
Analog Devices , Wilmington , MA
ECG Info
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