Patent ID: 7245247

Claim:
An analog to digital converter comprising: a modulator operable to receive an analog input signal and to produce a modulator output, the modulator comprising: a sampling circuit comprising: a sampling capacitor operable to receive the analog input signal; first and second dump capacitors, the first dump capacitor operable to receive a first feedback signal and the second dump capacitor operable to receive a second feedback signal; an integrator operable to receive an output of the sampling circuit and to produce an output; a quantizer operable to receive the output of the integrator and to produce the modulator output signal; and feedback circuitry operable to receive the modulator output and to produce the first feedback signal as a function of a current output of the quantizer and the second feedback signal as a function of a prior output of the quantizer; and a decimation filter operable to receive the quantized output and to produce a digital output signal.