AFE for ECG, EEG apps reduces component count, power consumption

AFE for ECG, EEG apps reduces component count, power consumption

Suited for portable and high-end electrocardiogram (ECG) and electroencephalogram (EEG) equipment, the eight-channel 24-bit ADS1298 analog front end is claimed to reduce component count and power consumption by up to 95% over discrete implementations, with a power efficiency of 1 mW/channel, while allowing customers to achieve the highest levels of diagnostic accuracy. The AFE integrates eight low-noise PGAs, eight high-resolution simultaneous sampling ADCs, an amplifier for right-leg drive, and integrated amplifiers for the Wilson Center Terminal and Goldberger Terminal .

The ADS1298’s 4-µVpp typ input-referred noise is far superior to the limits set in IEC60601-2-27/51 — which enables more-accurate measurements in portable and high-channel-density equipment. Housed in a BGA package, the part also features digital pace detection capability, continuous lead-off detection, onboard oscillator, and reference. The ADS1298 EVM supports the part. For more information, visit www.ti.com/ads1298-pr. ($23.95 ea/1,000; EVM, $149 — available now.)

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