Patent ID: 11962331
Assignee: NXP B.V.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. The differential sigma-delta ADC of claim 19 further comprising:
one or more first further feedback resistors in parallel with the first feedback resistor, each of the first feedback resistor and the one or more first further feedback resistors having a first terminal coupled to the filter output corresponding to the positive signal input; and a parallel arrangement of a plurality of switches, each switch configured to switchably couple one of a first voltage and a second voltage to a respective second terminal of the feedback resistor and the one or more first further feedback resistors dependent on the value of the first digital integrator output; and
one or more second further feedback resistors in parallel with the second feedback resistor, each of the further feedback resistor and the one or more second further feedback resistors having a first terminal coupled to the filter output corresponding to the negative signal input; and a plurality of switches, each switch configured to switchably couple one of the first voltage and the second voltage to a respective second terminal of the further feedback resistor and the one or more second further feedback resistors dependent on a value of the second digital integrator output.