Infineon Technologies Ag

Infineon Technologies Austria Ag

Christopher Rogi

Andreas Wiesbauer

Jose Luis Ceballos

Richard Gaggl

Christian Reindl

Enrique Prefasi

An analog-to-digital converter (ADC) includes a loop filter having an input for receiving an analog input signal; a quantizer having an input coupled to an output of the loop filter, and an output for providing a digital output signal; and a digital-to-analog converter (DAC) having an input coupled to an output of the quantizer, and an output coupled to the loop filter, wherein the DAC includes at least one always-on DAC element, and a plurality of on-demand DAC elements.

Microphones with an on-demand digital-to-analog converter

According to various embodiments, a multi-slope converter can have the following: an integrator circuit having a charge store; a clocked comparator; a sensor circuit having a capacitor arrangement and a charging circuit for pre-charging the capacitor arrangement, a discharging circuit; a switch arrangement and a controller circuit for actuating the switch arrangement based on a clock signal; wherein the controller circuit is set up to actuate the switch arrangement such that, alternately: in an integration cycle electrical charge is transferred from the capacitor arrangement of the sensor circuit to the charge store of the integrator circuit, and in a deintegration cycle the charge store of the integrator circuit is discharged by means of the discharging circuit, wherein after the integration cycle a residual charge remains stored in the charge store of the integrator circuit and is taken into consideration during a subsequent integration cycle.

Self-oscillating multi-ramp converter and method for converting a capacitance into a digital signal

Growing community of inventors

Klagenfurt, Austria

Christopher Rogi