1. A method for tracking a transfer function for digital quantization noise cancellation in a multi-stage analog-to-digital converter (ADC), the method comprising: injecting a dither signal at a quantizer of a front end of the multi-stage ADC, wherein the dither signal is a maximum length linear feedback shift registers sequence; determining a cross-correlation function of a digital output signal of the multi-stage ADC and the dither signal to determine a transfer function of the multi-stage ADC; and updating coefficients of a programmable filter for digital quantization noise cancellation based on the cross-correlation function.