发明名称 |
ANALOG-TO-DIGITAL CONVERTER |
摘要 |
According to an embodiment, an analog-to-digital converter includes a voltage generating unit to generate comparative voltages; and comparators. Each comparator compares any one of the comparative voltages with an analog input voltage and output a digital signal. Each comparator includes a differential pair circuit to detect a potential difference between two inputs. The differential pair circuit includes first and second circuit portions. The first circuit portion includes a first transistor having a gate to which one input is supplied; and a resistor connected in series with the first transistor. The second circuit portion includes a second transistor having a gate to which the other input is supplied and forms a differential pair with the first transistor; and a variable resistor connected in series with the second transistor. The variable resistor includes variable resistive elements each having a resistance value variably set according to a control signal.
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申请公布号 |
US2013076551(A1) |
申请公布日期 |
2013.03.28 |
申请号 |
US201213535118 |
申请日期 |
2012.06.27 |
申请人 |
MARUKAME TAKAO;TANAMOTO TETSUFUMI;KINOSHITA ATSUHIRO;INOKUCHI TOMOAKI;SUZUKI MASAMICHI;SAITO YOSHIAKI |
发明人 |
MARUKAME TAKAO;TANAMOTO TETSUFUMI;KINOSHITA ATSUHIRO;INOKUCHI TOMOAKI;SUZUKI MASAMICHI;SAITO YOSHIAKI |
分类号 |
H03M1/36 |
主分类号 |
H03M1/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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