发明名称 |
Method and circuit arrangement for signal processing |
摘要 |
The invention pertains to an improved method and circuit arrangement for signal processing. The invention is advantageously used for processing analog signals in applications in which low energy consumption is of the essence. An idea of the invention is to achieve an integrator topology where the active charge-transferring element is a preferably source-follower-type transistor in which one input terminal is arranged so as to be substantially independent of the input signal and in which the essential signal path elements of the circuit topology are connected in a fixed manner. The circuit arrangement according to the invention is realized preferably in such a manner that it comprises separate transistors for sampling and charge transfer. Thus it is possible to connect an input signal in a fixed manner to an input terminal of the sampling transistor, and an input terminal of the charge-transferring transistor can be connected in a fixed manner to a constant voltage. By using a signal processing circuit according to the invention it is possible to avoid circuit non-idealities caused by parasitic capacitances.
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申请公布号 |
US2001002802(A1) |
申请公布日期 |
2001.06.07 |
申请号 |
US20010754741 |
申请日期 |
2001.01.04 |
申请人 |
NOKIA MOBILE PHONES LTD., |
发明人 |
RAPAKKO HARRI |
分类号 |
G06G7/184;G06G7/186;G11C27/02;H03F3/70;H03H19/00;(IPC1-7):H03K17/16 |
主分类号 |
G06G7/184 |
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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