Patent ID: 11876539
Assignee: AMS INTERNATIONAL AG
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A current to digital converter circuit having
an integrator amplifier with an input adapted to receive a current signal and an output adapted to provide a voltage signal as a function of an integration of the current signal,
a quantizer circuit with an input which is coupled to the output of the integrator amplifier and with an output adapted to provide a binary result signal as a function of a comparison of the voltage signal with at least a first reference voltage signal,
a digital-to-analog converter circuit which is coupled in a switchable manner as a function of the binary result signal to the input of the integrator amplifier, and
a controlled current source which is coupled to the output of the integrator amplifier via a first switch which is controlled as a function of the binary result signal such that an auxiliary current is supplied to the output of the integrator amplifier.