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The BES-AFE-1 is a fully functional single lead electrocardiograph (ECG) analog front-end module designed for prototyping or for integration in user designs. It consists of input protection, amplification, right-leg drive feedback, reference generation, 60Hz notch filtering (configurable to 50Hz during purchase or by the user), anti-aliasing, and buffering for direct connection to an analog-to-digital converter (ADC) of the user’s choice. The module has been designed to offer the user a low noise, low offset, and low power solution in a compact easy-to-use form factor.