| US 7,497,615 B2 | ||
| Digital temperature sensor, and system and method for measuring temperature | ||
| Dong-kyun Kim, Suwon-si (Korea, Republic of); and Ja-nam Ku, Yongin-si (Korea, Republic of) | ||
| Assigned to Samsung Electronics Co., Ltd., Suwon-si (Korea, Republic of) | ||
| Filed on Jul. 25, 2005, as Appl. No. 11/188,007. | ||
| Claims priority of application No. 10-2004-0057555 (KR), filed on Jul. 23, 2004. | ||
| Prior Publication US 2006/0018364 A1, Jan. 26, 2006 | ||
| Int. Cl. G01K 7/16 (2006.01); H03K 3/00 (2006.01) | ||
| U.S. Cl. 374—170 [374/185; 374/183; 327/512; 702/134] | 17 Claims |
| 1. A digital temperature sensor comprising:
a reference signal generator comprising at least one reference resistance element;
a temperature sensor comprising a plurality of discrete resistance elements connected in parallel with one another;
a multiplexer which multiplexes the plurality of discrete resistance elements and the reference resistance element so that
the plurality of discrete resistance elements sequentially distribute a power voltage together with the reference resistance
element;
a comparator which compares voltages distributed by the reference resistance element and a discrete resistance element selected
from among the plurality of discrete resistance elements by the multiplexer; and
a counter which counts sequential switchings of the multiplexer.
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