Digital filter for a delta-sigma analog-to-digital converter

An analog-to-digital converter (ADC), comprising:

• a modulator having a modulator input and a modulator output;
• an integrator circuit having an integrator circuit input and an integrator output, the integrator circuit input coupled to the modulator output;
• a first differentiator circuit coupled to the integrator output, the first differentiator circuit coupled to a first clock generator;
• and
• a second differentiator circuit coupled to the integrator output, the second differentiator circuit coupled to a second clock generator.

An analog-to-digital converter (ADC), comprising:

• a delta-sigma modulator having a modulator input and a modulator output;
• an integrator circuit having an integrator circuit input and an integrator output, the integrator circuit input coupled to the modulator output and to a first clock generator;
• a first differentiator circuit coupled to a second clock generator;
• a first switch coupled between the integrator output and the first differentiator circuit;
• a second differentiator circuit coupled to a third clock generator;
• a second switch coupled between the integrator output and the second differentiator circuit;
• and
• a results circuit having first and second results circuit inputs, the first results circuit input is coupled to the first differentiator circuit, and the second results circuit input is coupled to the second differentiator circuit.