Layout of a reference generating system
AssigneesHimax Technologies Limited, National Taiwan University
InventorsYi-Chang Lu, Cheng-Hung Li, Chung-Yui Kuo, Tsung-Yu Wu
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Abstract
A layout of a voltage/current reference system is disclosed. A first voltage/current reference circuit (for example, a bandgap reference circuit) and a second voltage/current reference circuit are respectively laid out on either side of a substrate, such as edges or perimeter sides of the substrate. A reference voltage/current is derived by averaging respective output reference voltage/current values of the first and the second voltage/current reference circuits. Accordingly, the noise influence on the voltage/current reference system is minimized.
Claims2
A layout of a reference generating system, comprising:
- at least one first voltage reference circuit and a second voltage reference circuit that are respectively laid out on either side of a substrate, the first voltage reference circuit being separated from the second voltage reference circuit in layout by an electronic circuit;
- a first conductive power line electrically extending from a first output reference voltage of the first voltage reference circuit;
- a second conductive power line electrically extending from a second output reference voltage of the second voltage reference circuit;
- and
- at least one conductive connecting line electrically coupled between the first conductive power line and the second conductive power line;
- wherein a reference voltage node on the conductive connecting line is used to provide a reference voltage;
- and
- wherein the conductive connecting line includes a first electronic component and a second electronic component, with the reference voltage node being located at an interconnecting node of the first and the second electronic components.
Dependencies are inferred from the claim text.