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Active current mode sampling circuit

机译：有源电流模式采样电路

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摘要

The invention relates to an active current mode sampling circuit comprising an operational amplifier (103) and at least one switched capacitor (C2, C2a, C2b). In order to reduce the power consumption of such a circuit, first switching elements (S101a, S101b, S102a, S102b) switch the switched capacitor (C2, C2a, C2b) between an input and an output of the operational amplifier (103) during charging phases φ1. Further, second switching elements (S103a, S103b, S104a, S104b) connect the switched capacitor (C2, C2a, C2b) during discharging phases φ2 to a subsequent stage (104), in order to provide a charge of the switched capacitor (C2, C2a, C2b) to the subsequent stage (104). The invention relates equally to a device (107) comprising such a sampling circuit and to a method of operating such a sampling circuit.

机译：本发明涉及一种有源电流模式采样电路，其包括运算放大器（ 103 ）和至少一个开关电容器（C 2 ，C < B> 2 a，C 2 b ）。为了减少这种电路的功耗，首先需要开关元件（S 101 a，S 101 b，S < / I> 102 a，S 102 b ）切换开关电容器（C 2 ，C 2 a，C 2 b ）在输入和在充电阶段φ 1 时运算放大器（ 103 ）的输出。此外，第二开关元件（S 103 a，S 103 b，S 104 a，S 104 b ）连接开关电容器（C 2 ，C 2 a，C 2 b ）在放电阶段φ 2 到a后级（ 104 ），以便为开关电容器（C 2 ，C 2 a，C 2 b ）到后续阶段（ 104 ）。本发明同样涉及一种包括这样的采样电路的设备（ 107 ），并且涉及一种操作这种采样电路的方法。 展开▼

著录项

公开/公告号US7239183B2

专利类型

公开/公告日2007-07-03

原文格式PDF

申请/专利权人 ANTTI RUHA;JUSSI-PEKKA TERVALUOTO;TARMO RUOTSALAINEN;
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申请/专利号US20050536727

发明设计人 JUSSI-PEKKA TERVALUOTO;ANTTI RUHA;TARMO RUOTSALAINEN;
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申请日2003-09-29

分类号G11C27/02;

国家 US

入库时间 2022-08-21 21:01:10

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1. 有源电流模式采样电路 [P] . 中国专利： CN100468577C . 2009.03.11

2. 有源电流模式采样电路 [P] . 中国专利： CN1720592A . 2006-01-11

3. ACTIVE CURRENT MODE SAMPLING CIRCUIT [P] . 欧洲知识产权局专利： EP1668647B1 . 2009-09-16

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4. Active current mode sampling circuit [P] . 韩国专利： KR100711824B1 . 2007-04-30

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5. ACTIVE CURRENT MODE SAMPLING CIRCUIT [P] . 欧洲知识产权局专利： EP1668647A1 . 2006-06-14

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