Integrators are electronic components used to condition received analog signals, for example prior to Analog to Digital Conversion. Wide dynamic range, high gain and fine resolution are required of integrators and Analog to Digital Converters in order to limit the effects of noise, including quantization noise. Conventional integrators preceding Analog to Digital Converters are not capable of effectively meeting these requirements. A novel phase domain integrator that can meet effectively these requirements and is superior to conventional integrators for a wide range of applications is disclosed.