公开(公告)号：US09710118B2

公开(公告)日：2017-07-18

申请号：US14750079

申请日：2015-06-25

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Junchul Park ,  Bumsoo Kim ,  Hyunkyu Ouh ,  Sang-Hyub Kang ,  Chadong Kim ,  Sanho Byun ,  Jinchul Lee ,  Yoon-Kyung Choi

IPC分类号： H03L5/00 ,  G06F3/044 ,  G06F3/041

CPC分类号： G06F3/044 ,  G06F3/0416 ,  G06F3/0418

摘要： Provided are a semiconductor device and a semiconductor system, which can increase immunity against noises through tertiary correlated double sampling (CDS). The semiconductor device includes an amplifier that receives noise and a driving signal, resets for each predetermined period of the driving signal and samples the noise to generate first sampled noise. The first sampled noise includes multiple noise differences each occurring between consecutive reset points. A sampler performs second sampling and third sampling on the first sampled noise and performs fourth sampling on the second and third sampled noises. The first sampled noise includes first to third noise differences, the second sampled noise is a difference between the first and second noise differences, the third sampled noise is a difference between the second and third noise differences, and the fourth sampled noise is a difference between the second and third sampled noises.

公开(公告)号：US20160034094A1

公开(公告)日：2016-02-04

申请号：US14807530

申请日：2015-07-23

申请人： Samsung Electronics Co., Ltd.

发明人： Sang-Hyub Kang ,  Ki-Duk Kim ,  Jun-Chul Park ,  Ho-Jin Park ,  Kyung-Hoon Lee ,  Min-Chul Lee ,  Jin-Chul Lee ,  Choong-Hoon Lee ,  Michael Choi ,  Yoon-Kyung Choi

IPC分类号： G06F3/041 ,  H03F3/45 ,  H03G3/00

CPC分类号： G06F3/0416 ,  H03F3/45475 ,  H03F3/45968 ,  H03F2200/228 ,  H03F2203/45116 ,  H03F2203/45522 ,  H03F2203/45591 ,  H03G1/0088

摘要： A programmable gain amplifier (PGA) circuit includes a first input resistor coupled between a first input node and a first summing node and a second input resistor coupled between a second input node and a second summing node. The PGA circuit further includes a first variable reference resistor coupled between a third input node and the first summing node, a second variable reference resistor coupled between a fourth input node and the second summing node, and an operational amplifier having first and second inputs coupled to respective ones of the first and second summing nodes and first and second outputs coupled to respective ones of the first and second output nodes. At least of the first and second reference resistors may include an R-2R ladder circuit.

摘要翻译： 可编程增益放大器（PGA）电路包括耦合在第一输入节点和第一求和节点之间的第一输入电阻器以及耦合在第二输入节点和第二求和节点之间的第二输入电阻器。 PGA电路还包括耦合在第三输入节点和第一求和节点之间的第一可变参考电阻器，耦合在第四输入节点和第二求和节点之间的第二可变参考电阻器，以及运算放大器，其具有耦合到 第一和第二求和节点中的相应的，以及耦合到第一和第二输出节点中的相应的第一和第二输出节点的第一和第二输出。 至少第一和第二参考电阻器可以包括R-2R梯形电路。