Certain aspects of the present disclosure relate to a technique for producing a difference value by offsetting a current value of an analog signal with a stored previous value of the analog signal, and generating a digital representation of the difference value. Digital representations obtained by this technique may be sent over a channel to a receiver device for reconstruction of the original analog signal. An integrator of the receiver device may be configured to process (sum) the received samples to generate a reconstructed version of the original signal.