CPC G06F 3/0412 (2013.01) [G06F 3/0445 (2019.05)] | 20 Claims |
1. A charge source circuit, comprising:
a reference current generation block configured to provide a reference current;
a current minor block coupled to the reference current generation block and configured to minor the reference current; and
a charge output block coupled to the current minor block and configured to convert the mirrored current from the current mirror block into a corresponding amount of charge and output the amount of charge according to the following formula:
Qdc=Idc*t,
where Qdc is the amount of charge output from the charge output block, Idc is a current provided by the charge output block, and t is a period of time in which the charge output block provides the current, wherein the period t is divided into at least two consecutive time intervals with lengths which form a sequence with ratios equal to a power of 2, thereby enabling continuous adjustability of the amount of charge Qdc.
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