US 9,813,076 B1
Analog to digital converter and a method for analog to digital conversion
Vladimir Koifman, Rishon Lezion (IL); Tiberiu Galambos, Binyamina (IL); and Anatoli Mordakhay, Hadera (IL)
Assigned to ANALOG VALUE LTD., Reshon Lezion (IL)
Filed by Analog Value Ltd., Rishon Lezion (IL)
Filed on Mar. 29, 2017, as Appl. No. 15/472,277.
Claims priority of provisional application 62/315,695, filed on Mar. 31, 2016.
Int. Cl. H03M 1/12 (2006.01); H03M 1/10 (2006.01)
CPC H03M 1/1245 (2013.01) [H03M 1/1009 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An analog to digital converter comprising:
a sampler that is configured to sample an input analog signal to generate a series of current pulses;
a group of charge memory units;
a de-multiplexor that is configured to provide charge packets that reflect the series of current pulses to the group of charge memory units;
at least one controller for controlling the group of charge memory units thereby causing different charge memory units of the group to receive charge packets from different current pulses; wherein each charge memory unit is configured to receive a charge packet related to given current pulse during a reception period that (a) starts at a start point of time that precedes the given current pulse and occurs between the current pulses, and (b) ends at an end point of time that follows the given current point of time and occurs between the current pulses;
a group of pulse width modulation (PWM) modulators that are coupled to the group of charge memory units and are configured to generate PWM pulses that represent the charge packets stored by the group of charge memory units; and
a processor that is configured to generate an output digital signal that represents the analog input signal based on the PWM pulses.